Genetic Algorithm Based Optimization Model for Reliable Data Storage in Cloud Environment

Size: px
Start display at page:

Download "Genetic Algorithm Based Optimization Model for Reliable Data Storage in Cloud Environment"

Transcription

1 Advanced Scence and Technology Letters, pp Genetc Algorthm Based Optmzaton Model for Relable Data Storage n Cloud Envronment Feng Lu 1,2,3, Hatao Wu 1,3, Xaochun Lu 1,3, Xyang Lu 4, Le Fan 4 1 atonal Tme Servce Center, Chnese Academy of Scences, 3 East Shuyuan Road, X an, Chna 2 Unversty of Chnese Academy of Scences, 19A Yuquan Road, Beng, Chna 3 Key Laboratory of Precson avgaton and Tmng Technology, Chnese Academy of Scences, 3 East Shuyuan Road, X an, Chna 4 Xdan Unversty, 2 South Taba Road, X an, Chna Abstract. Massve data storage s one of the great challenges for cloud computng servce, and relable storage of senstve data drectly affects qualty of storage servce. In ths paper, based on analyss of data storage process n cloud envronment, the cost of massve data storage s consdered to be comprsed of data storage prce, data mgraton and communcaton; and the storage relablty conssts of data transmsson relablty and hardware dependablty. A mult-obectve optmzaton model for relable massve storage s proposed, n whch storage cost and relablty are the obectves. Then, a genetc algorthm for solvng the model s desgned. Fnally, expermental results ndcate that the proposed model s postve and effectve. Keywords: Cloud storage, mult-obectve optmzaton model, genetc algorthm, relable storage 1 Introducton The development of nformaton-based socety entals that more and more resources are beng dgtzed, causng endless growth of data resource storage capacty, and thus resultng n substantal ncrease of storage costs. Moreover, dfferent applcatons requre dfferent storage capacty. However, storage space assgned to these applcatons s often not fully utlzed. The servce provder s facng the tradeoff between rapd growth of nformaton resources and control of the costs. On one hand, servce provders not only produce enormous mportant data by themselves, but also requre massve nformaton resources. On the other hand, large amount of storage equpment and manpower are needed to store the nformaton resources. Therefore, new data storage devces requred by servce provder should nclude features such as storage vrtualzaton [1], dynamcally extensble storage capacty [2][3] and relable data storage. Cloud storage s a new concept derved from cloud computng, referrng to a system whch assembles plentful dfferent small and large storage devces of same ISS: ASTL Copyrght 2014 SERSC

2 Advanced Scence and Technology Letters type n the grd by cooperatng applcaton software to ontly and externally provde functons of data storage and busness access usng cluster applcaton, grd technology or Dstrbuted Fle System (DFS). Compared wth tradtonal storage devces, cloud storage s not only hardware but also a complex system comprsed of network devce, storage devce, server, applcaton software, publc access nterface, Access etwork (A), clent program, etc. Each part provdes data storage and busness access through applcaton software wth the storage devce as the core. Strctly speakng, cloud storage s a servce rather than a storage devce. Cloud storage provder may provde personalzed storage servces accordng to clents demands, such as storage space, network bandwdth, data safety, dsaster recovery performance, etc. Currently, cloud storage s a feld n whch h-tech enterprses compete; many htech enterprses have launched ther own cloud data storage products ncludng Cloud Drve by Amazon, Lve Mesh by Mcrosoft, Does by Google, etc. Cloud storage has become a tendency for future storage development. Wth development of cloud storage technology, applcatons that combne technques of all knds of searches and applcatons pertanng to cloud storage should be mproved from the vew of safety, relablty, data access, etc. 2 Problem Analyss 2.1 Rsk Analyss of Data Resources n Cloud Storage Envronment Accordng to lterature [4], Gartner ndcates that seven securty rsks are faced by cloud computng: prvleged user access, regulatory complance, data locaton, data segregaton, recovery, nvestgatve support, and long-term vablty. Among dfferent safety rsks, data dsaster recovery s the most mportant ssue whch needs to be consdered by cloud storage provders and clents. Enterprses hand over ther senstve and mportant commercal data to cloud servce provder. Therefore, loss of the data wll not only brng enterprses fatal dsaster but also cause legal dspute between enterprses and ther clents. For example, n bankng system, clent data s vtal for both the bank and ts clents; Unrecoverable data loss wll result n ncalculable loss for the bank and ts clents. Therefore, for cloud storage provders, t s ther own busness obectve to guarantee the safety, relablty and recoverablty of data. evertheless, when provdng some mportant clents wth storage servce, legal clauses are sgned wth the clents, so that f data loss occurs, clents wll be compensated. Therefore, guarantee of data dsaster recoverablty s of sgnfcant mportance for cloud storage provders. 2.2 DC (Data Center) Wkpeda defnes a data center as a complex set of faclty whch ncludes not only computer systems and assocated components such as telecommuncatons and Copyrght 2014 SERSC 75

3 Advanced Scence and Technology Letters storage systems, but also redundant data communcatons connectons, envronmental controls and varous securty devces. In lterature [5], Google llustrates datacenters as buldngs wth mult functons, where multple servers and communcaton gear are collocated because of ther common envronmental requrements and physcal securty needs, and ease of mantenance, other than ust a collecton of co-located servers. 1) Server: Compared wth PC, server has more relable contnuous operatng capablty, more powerful storage and network communcaton capablty, faster falure recovery capablty and has easer extenson space. Data backup functons are also requred by applcatons whch are senstve to data. In realty, servers are located n geographcally dfferent locatons. Therefore the nfluence caused by geographcal dstance between servers should be consdered when storng the data. In practcal applcatons, servers are usually connected by nternet or routers. Consderng each server as node, the connectons as sdes, connecton of servers can be shown as a graph, more specfcally a complete graph. 2) Storage capablty: Hardware s vtal for data storage, whch drectly affects DC s data storage capablty and storage safety. owadays, varous types of hard dsks can be found n the market, each havng ts own characterstcs. Hard dsk nterface s the connectng component between hardware and host system, and functons as the data transmsson devce between HDD (Hard Dsk Drve) cachng and host memory. Dfferent hard dsk nterfaces determne speed of connecton between hard dsk and computer. In the whole system, qualty of hard dsk nterface drectly affects program runnng speed and system performance level. In DC, the future of enterprse-based dsk array les n mxed use of SSD (Sold State Dsk) and HDD. For the sake of cost control, both should be taken nto consderaton. HDD can provde massve storage space, whle SSD can provde hgh performance. Generally, for hard dsks used for server confguraton crculated n the market, ts prce s drectly proportonal to ts stablty and data read/wrte speed; 3 Model Establshment Snce cloud storage s a burgeonng servce, the users are hghly concerned about data storage relablty and safety, n addton to the prce of the servce. To some extent, the data submtted by users may nvolve ther prvacy or nterest. Therefore, more sutable storage servce whch meets ther requrements may be chosen by users regardng storage prce vs. relablty. Hence, when buldng the mathematc model, storage servce cost and storage relablty are both consdered as obectves, and mult-obectve optmzaton model of relable storage of cloud storage s proposed. 3.1 Assumptons Assumng server cluster owned by certan DC s S { s, s,, s } 1 2, the servers are allocated at dfferent places wth geographcal dfference among them. The matrx ( d ( s, s )) represents spatal dstance between two servers, 76 Copyrght 2014 SERSC

4 Advanced Scence and Technology Letters where d ( s, s ) 0, 1 ~ and, {1, 2,, },, then d ( s, s ) 0. Assumng data set submtted to DC by users s F { f, f,, f }, where f s ndvsble data 1 2 M block, each data block has ts own safety level L ( f ), 1 ~ M. Dfferent prces are charged for each server storng data wth dfferent safety level manly because data fles wth dfferent safety level have dfference backup fle numbers. The number and locaton of backups are decded accordng to the safety level of data fle specfed. Therefore, when provdng storage servce, data fles submtted by users may be mgrated among servers n DC accordng to requrement. Thus, durng mgraton, an overhead cost arses from communcaton and mgraton, along wth some problems related to relablty. Relablty n mgraton s manly related to connecton stablty and dstance among servers. For convenent model descrpton, the followng parameters are ntroduced: Data fle storage dentfcaton: f the data fle f s stored n the k type hard dsk of server s, then mark the matrx Y Sgn functon: s g n () s defned as 1 0 ( ) { f y sg n y 0 e lse k,ory 0 Functon X ( f, s ) represents the storage space of data fle f n server Intrnsc relablty R ( s ) owned by the server s tself Relablty T R ( s, s ) of data transmsson among servers, where (, ) [0,1] T R s s, and T R ( s, s ) s nversely proportonal to d ( s, s ) There are K types of hard dsk n DC, current avalable capacty of varous hard dsks n server s can be denoted as A ( s ), A ( s ),, A ( s ) 1 2 K, and the h type of hard dsk has relablty of ts own: P ( h ), h 1, 2,, K Data storage relablty, whch s the product of transmsson relablty, hardware relablty and server relablty durng data transmsson; the formula s: S R ( f, R ( s ), X ( f, s ), T R ( s, s )) ( ) (, ) (, ) ( ) B R s X f s T R s s P Y B 1 s (1) 3.2 Storage Cost Dfferent prces are charged for each server provdng storage servce to data at dfferent safety levels, denoted as C ( s L ( f )). Plus, data fles wth dfferent safety s levels have dfferent backup fle numbers; hgher safety levels correspond to more backups. Here, safety level s made equvalent to the amount of data fle backups, and these backups are stored n servers at dfferent geographc locatons whch comples wth our practce of data storage n cloud computng. Hence our assumpton s reasonable. The storage prce of fle f s: Copyrght 2014 SERSC 77

5 Advanced Scence and Technology Letters C ( f ) (, ( )) (, ) c C s L f X f s 1 The storage prce of data fle F submtted by user s: M C ( F ) C ( s, L ( f )) X ( f, s ) c 1 1 (2) (3) 3.3 Mgraton Cost Snce servers are located n dfferent geographc locatons, dfferent mgraton dstance occurs durng mgraton of data block from one server to another. Hence, mgraton cost s related to mgraton dstance and sze of data fle. Therefore, the mgraton cost of data block f k mgrated from the server s to the server s s expressed as: C ( f, s, s ) C X ( f, s ) d ( s, s ) (4) Where, C s parameter of mgraton cost. m m g k m k Hence, the mgraton cost of data fle F mgrated from server server s: M C ( f, s, s ) C X ( f, s ) d ( s, s ) k 1 k 1 M m g k m k s to another (5) 3.4 Communcaton Cost Data transmsson among servers manly embodes n communcaton flow due to dfferent geographc locatons of servers, hence, dstance between source server ( s ) and host server ( s ) s another factor nfluencng communcaton cost, expressed as: C ( f ) [ X ( f s ) W ( s s ) d ( s s )] co m k k 1 1 Where, W ( s, s ) represents communcaton cost of servers. The whole communcaton cost of data fle F after storage s: M C ( F ) [ X ( f, s ) W ( s, s ) d ( s, s )] co m k k 1 1,1 1 (6) (7) 4 Concluson By analyzng data storage nformaton n cloud envronment, a mult-obectve optmzaton model for relable storage s bult. In vew of data fles wth safety requrement stored by users, n the model, both data storage cost ncludng storage prce, mgraton cost and communcaton cost and data relablty ncludng 78 Copyrght 2014 SERSC

6 Advanced Scence and Technology Letters transmsson relablty n storage process and storage devce relablty after data storage are consdered. In order to valdate correctness and avalablty of the model, a mult-obectve GA s desgned under the framework of algorthm SGA-II for model soluton. In the experments, computatons are carred out through constructng several storage stuatons by usng parameters publshed by exstng commercal cloud storage servces. The expermental results valdate correctness and avalablty of the model, and show that the model can provde multple storage solutons for users so that storage resources n DC can be effectvely utlzed. References 1. Aameek, S., Madhukar, K., Dushmanta, M.: Server-storage Vrtualzaton: Integraton and Load Balancng n Data Centers[C]. In: Proceedng of the 2008 ACM/IEEE Conference on Supercomputng (2008) Gregory, C., Idt, K,, Rachd, G.: Relable dstrbuted storage[j]. IEEE Computer Socety, Vol. 42, o. 4 (2009) Deng, Y.H., Wang, F., Helan,.: Dynamc and Scalable Storage Management Archtecture for Grd Orented Storage Devces [J]. Parallel Computng, Vol. 34, o. 6 (2008) Heser, J., colett, M.: Assessng the Securty Rsks of Cloud Computng. (2008) 5. Luz, B., Urs, H.: The Datacenter as a Computer. Morgan & Claypool Publshers, Calforna (2009) 6. Fan, L.: Research on Effcent and Intellgent Algorthms for Two Classes of Complex Optmzaton Problem. Xdan Unversty (2012) 7. Ghemawat, S., Goboff, H., Leung, S.T.: The Google Fle System[C]. In: Proceedngs of the 19th ACM Symposum on Operatng Systems Prncples, ew York (2003) Wang, C., Wang, Q., Ku, R., Lou, W.J.: Ensurng Data Storage Securty n Cloud Computng[C]. In: 17th IEEE Internatonal Workshop on Qualty of Servce (2009) Alves, A., Vegas, C., edl, P.: A Dstrbuted Tablng Algorthm for Rule Based Polcy Systems. IEEE Computer Socety, Vol. 15, o. 5 (2004) Thomas, C.: The Bascs of Relable Dstrbuted Storage etworks [J]. IEEE Computer Socety, Vol. 6, o. 3 (2004) Yang, J.F., Chen, Z.B.: Analyss and Research of Cloud Computng System Instance[C]. In: Proceedngs of the 2010 Second Internatonal Conference on Future etworks (2010) Hayes, B.: Cloud Computng [J]. Communcatons of the ACM, Vol. 51, o. 7 (2008) Gurumurth, S.: Archtectng Storage for the Cloud Computng Era [J]. IEEE Computer Socety, Vol. 34, o. 6 (2009) Wu, J.Y., Png, L.D., Ge, X.P.: Cloud Storage as the Infrastructure of Cloud Computng[C]. In: Proceedngs of the 2010 Internatonal Conference on Intellgent Computng and Cogntve Informatcs (2010) Buxmann, P., Hess, T., Lehmann, S.: Software as a Servce. Busness and Economcs, Vol. 50, o. 6 (2008) Copyrght 2014 SERSC 79

Optimization Model of Reliable Data Storage in Cloud Environment Using Genetic Algorithm

Optimization Model of Reliable Data Storage in Cloud Environment Using Genetic Algorithm Internatonal Journal of Grd Dstrbuton Computng, pp.175-190 http://dx.do.org/10.14257/gdc.2014.7.6.14 Optmzaton odel of Relable Data Storage n Cloud Envronment Usng Genetc Algorthm Feng Lu 1,2,3, Hatao

More information

Fault tolerance in cloud technologies presented as a service

Fault tolerance in cloud technologies presented as a service Internatonal Scentfc Conference Computer Scence 2015 Pavel Dzhunev, PhD student Fault tolerance n cloud technologes presented as a servce INTRODUCTION Improvements n technques for vrtualzaton and performance

More information

The Development of Web Log Mining Based on Improve-K-Means Clustering Analysis

The Development of Web Log Mining Based on Improve-K-Means Clustering Analysis The Development of Web Log Mnng Based on Improve-K-Means Clusterng Analyss TngZhong Wang * College of Informaton Technology, Luoyang Normal Unversty, Luoyang, 471022, Chna wangtngzhong2@sna.cn Abstract.

More information

HP Mission-Critical Services

HP Mission-Critical Services HP Msson-Crtcal Servces Delverng busness value to IT Jelena Bratc Zarko Subotc TS Support tm Mart 2012, Podgorca 2010 Hewlett-Packard Development Company, L.P. The nformaton contaned heren s subject to

More information

Introduction CONTENT. - Whitepaper -

Introduction CONTENT. - Whitepaper - OneCl oud ForAl l YourCr t c al Bus nes sappl c at ons Bl uew r esol ut ons www. bl uew r e. c o. uk Introducton Bluewre Cloud s a fully customsable IaaS cloud platform desgned for organsatons who want

More information

Survey on Virtual Machine Placement Techniques in Cloud Computing Environment

Survey on Virtual Machine Placement Techniques in Cloud Computing Environment Survey on Vrtual Machne Placement Technques n Cloud Computng Envronment Rajeev Kumar Gupta and R. K. Paterya Department of Computer Scence & Engneerng, MANIT, Bhopal, Inda ABSTRACT In tradtonal data center

More information

Traffic State Estimation in the Traffic Management Center of Berlin

Traffic State Estimation in the Traffic Management Center of Berlin Traffc State Estmaton n the Traffc Management Center of Berln Authors: Peter Vortsch, PTV AG, Stumpfstrasse, D-763 Karlsruhe, Germany phone ++49/72/965/35, emal peter.vortsch@ptv.de Peter Möhl, PTV AG,

More information

A Design Method of High-availability and Low-optical-loss Optical Aggregation Network Architecture

A Design Method of High-availability and Low-optical-loss Optical Aggregation Network Architecture A Desgn Method of Hgh-avalablty and Low-optcal-loss Optcal Aggregaton Network Archtecture Takehro Sato, Kuntaka Ashzawa, Kazumasa Tokuhash, Dasuke Ish, Satoru Okamoto and Naoak Yamanaka Dept. of Informaton

More information

A New Task Scheduling Algorithm Based on Improved Genetic Algorithm

A New Task Scheduling Algorithm Based on Improved Genetic Algorithm A New Task Schedulng Algorthm Based on Improved Genetc Algorthm n Cloud Computng Envronment Congcong Xong, Long Feng, Lxan Chen A New Task Schedulng Algorthm Based on Improved Genetc Algorthm n Cloud Computng

More information

A Novel Problem-solving Metric for Future Internet Routing Based on Virtualization and Cloud-computing

A Novel Problem-solving Metric for Future Internet Routing Based on Virtualization and Cloud-computing www.ijcsi.org 159 A Novel Problem-solvng Metrc for Future Internet Routng Based on Vrtualzaton and Cloud-computng Rujuan Zheng, Mngchuan Zhang, Qngtao Wu, Wangyang We and Haxa Zhao Electronc & Informaton

More information

Study on Model of Risks Assessment of Standard Operation in Rural Power Network

Study on Model of Risks Assessment of Standard Operation in Rural Power Network Study on Model of Rsks Assessment of Standard Operaton n Rural Power Network Qngj L 1, Tao Yang 2 1 Qngj L, College of Informaton and Electrcal Engneerng, Shenyang Agrculture Unversty, Shenyang 110866,

More information

Forecasting the Demand of Emergency Supplies: Based on the CBR Theory and BP Neural Network

Forecasting the Demand of Emergency Supplies: Based on the CBR Theory and BP Neural Network 700 Proceedngs of the 8th Internatonal Conference on Innovaton & Management Forecastng the Demand of Emergency Supples: Based on the CBR Theory and BP Neural Network Fu Deqang, Lu Yun, L Changbng School

More information

An Interest-Oriented Network Evolution Mechanism for Online Communities

An Interest-Oriented Network Evolution Mechanism for Online Communities An Interest-Orented Network Evoluton Mechansm for Onlne Communtes Cahong Sun and Xaopng Yang School of Informaton, Renmn Unversty of Chna, Bejng 100872, P.R. Chna {chsun,yang}@ruc.edu.cn Abstract. Onlne

More information

An Alternative Way to Measure Private Equity Performance

An Alternative Way to Measure Private Equity Performance An Alternatve Way to Measure Prvate Equty Performance Peter Todd Parlux Investment Technology LLC Summary Internal Rate of Return (IRR) s probably the most common way to measure the performance of prvate

More information

Watermark-based Provable Data Possession for Multimedia File in Cloud Storage

Watermark-based Provable Data Possession for Multimedia File in Cloud Storage Vol.48 (CIA 014), pp.103-107 http://dx.do.org/10.1457/astl.014.48.18 Watermar-based Provable Data Possesson for Multmeda Fle n Cloud Storage Yongjun Ren 1,, Jang Xu 1,, Jn Wang 1,, Lmng Fang 3, Jeong-U

More information

Improved SVM in Cloud Computing Information Mining

Improved SVM in Cloud Computing Information Mining Internatonal Journal of Grd Dstrbuton Computng Vol.8, No.1 (015), pp.33-40 http://dx.do.org/10.1457/jgdc.015.8.1.04 Improved n Cloud Computng Informaton Mnng Lvshuhong (ZhengDe polytechnc college JangSu

More information

ORDER ALLOCATION FOR SERVICE SUPPLY CHAIN BASE ON THE CUSTOMER BEST DELIVERY TIME UNDER THE BACKGROUND OF BIG DATA

ORDER ALLOCATION FOR SERVICE SUPPLY CHAIN BASE ON THE CUSTOMER BEST DELIVERY TIME UNDER THE BACKGROUND OF BIG DATA Internatonal Journal of Computer Scence and Applcatons, Technomathematcs Research Foundaton Vol. 13, No. 1, pp. 84 92, 2016 ORDER ALLOCATION FOR SERVICE SUPPLY CHAIN BASE ON THE CUSTOMER BEST DELIVERY

More information

Forecasting the Direction and Strength of Stock Market Movement

Forecasting the Direction and Strength of Stock Market Movement Forecastng the Drecton and Strength of Stock Market Movement Jngwe Chen Mng Chen Nan Ye cjngwe@stanford.edu mchen5@stanford.edu nanye@stanford.edu Abstract - Stock market s one of the most complcated systems

More information

Pricing Model of Cloud Computing Service with Partial Multihoming

Pricing Model of Cloud Computing Service with Partial Multihoming Prcng Model of Cloud Computng Servce wth Partal Multhomng Zhang Ru 1 Tang Bng-yong 1 1.Glorous Sun School of Busness and Managment Donghua Unversty Shangha 251 Chna E-mal:ru528369@mal.dhu.edu.cn Abstract

More information

M3S MULTIMEDIA MOBILITY MANAGEMENT AND LOAD BALANCING IN WIRELESS BROADCAST NETWORKS

M3S MULTIMEDIA MOBILITY MANAGEMENT AND LOAD BALANCING IN WIRELESS BROADCAST NETWORKS M3S MULTIMEDIA MOBILITY MANAGEMENT AND LOAD BALANCING IN WIRELESS BROADCAST NETWORKS Bogdan Cubotaru, Gabrel-Mro Muntean Performance Engneerng Laboratory, RINCE School of Electronc Engneerng Dubln Cty

More information

Performance Analysis of Energy Consumption of Smartphone Running Mobile Hotspot Application

Performance Analysis of Energy Consumption of Smartphone Running Mobile Hotspot Application Internatonal Journal of mart Grd and lean Energy Performance Analyss of Energy onsumpton of martphone Runnng Moble Hotspot Applcaton Yun on hung a chool of Electronc Engneerng, oongsl Unversty, 511 angdo-dong,

More information

Can Auto Liability Insurance Purchases Signal Risk Attitude?

Can Auto Liability Insurance Purchases Signal Risk Attitude? Internatonal Journal of Busness and Economcs, 2011, Vol. 10, No. 2, 159-164 Can Auto Lablty Insurance Purchases Sgnal Rsk Atttude? Chu-Shu L Department of Internatonal Busness, Asa Unversty, Tawan Sheng-Chang

More information

An Optimal Model for Priority based Service Scheduling Policy for Cloud Computing Environment

An Optimal Model for Priority based Service Scheduling Policy for Cloud Computing Environment An Optmal Model for Prorty based Servce Schedulng Polcy for Cloud Computng Envronment Dr. M. Dakshayn Dept. of ISE, BMS College of Engneerng, Bangalore, Inda. Dr. H. S. Guruprasad Dept. of ISE, BMS College

More information

NEURO-FUZZY INFERENCE SYSTEM FOR E-COMMERCE WEBSITE EVALUATION

NEURO-FUZZY INFERENCE SYSTEM FOR E-COMMERCE WEBSITE EVALUATION NEURO-FUZZY INFERENE SYSTEM FOR E-OMMERE WEBSITE EVALUATION Huan Lu, School of Software, Harbn Unversty of Scence and Technology, Harbn, hna Faculty of Appled Mathematcs and omputer Scence, Belarusan State

More information

Research of Network System Reconfigurable Model Based on the Finite State Automation

Research of Network System Reconfigurable Model Based on the Finite State Automation JOURNAL OF NETWORKS, VOL., NO. 5, MAY 24 237 Research of Network System Reconfgurable Model Based on the Fnte State Automaton Shenghan Zhou and Wenbng Chang School of Relablty and System Engneerng, Behang

More information

Data Broadcast on a Multi-System Heterogeneous Overlayed Wireless Network *

Data Broadcast on a Multi-System Heterogeneous Overlayed Wireless Network * JOURNAL OF INFORMATION SCIENCE AND ENGINEERING 24, 819-840 (2008) Data Broadcast on a Mult-System Heterogeneous Overlayed Wreless Network * Department of Computer Scence Natonal Chao Tung Unversty Hsnchu,

More information

Optimization of network mesh topologies and link capacities for congestion relief

Optimization of network mesh topologies and link capacities for congestion relief Optmzaton of networ mesh topologes and ln capactes for congeston relef D. de Vllers * J.M. Hattngh School of Computer-, Statstcal- and Mathematcal Scences Potchefstroom Unversty for CHE * E-mal: rwddv@pu.ac.za

More information

IWFMS: An Internal Workflow Management System/Optimizer for Hadoop

IWFMS: An Internal Workflow Management System/Optimizer for Hadoop IWFMS: An Internal Workflow Management System/Optmzer for Hadoop Lan Lu, Yao Shen Department of Computer Scence and Engneerng Shangha JaoTong Unversty Shangha, Chna lustrve@gmal.com, yshen@cs.sjtu.edu.cn

More information

A Novel Auction Mechanism for Selling Time-Sensitive E-Services

A Novel Auction Mechanism for Selling Time-Sensitive E-Services A ovel Aucton Mechansm for Sellng Tme-Senstve E-Servces Juong-Sk Lee and Boleslaw K. Szymansk Optmaret Inc. and Department of Computer Scence Rensselaer Polytechnc Insttute 110 8 th Street, Troy, Y 12180,

More information

A Replication-Based and Fault Tolerant Allocation Algorithm for Cloud Computing

A Replication-Based and Fault Tolerant Allocation Algorithm for Cloud Computing A Replcaton-Based and Fault Tolerant Allocaton Algorthm for Cloud Computng Tork Altameem Dept of Computer Scence, RCC, Kng Saud Unversty, PO Box: 28095 11437 Ryadh-Saud Araba Abstract The very large nfrastructure

More information

Methodology to Determine Relationships between Performance Factors in Hadoop Cloud Computing Applications

Methodology to Determine Relationships between Performance Factors in Hadoop Cloud Computing Applications Methodology to Determne Relatonshps between Performance Factors n Hadoop Cloud Computng Applcatons Lus Eduardo Bautsta Vllalpando 1,2, Alan Aprl 1 and Alan Abran 1 1 Department of Software Engneerng and

More information

A Load-Balancing Algorithm for Cluster-based Multi-core Web Servers

A Load-Balancing Algorithm for Cluster-based Multi-core Web Servers Journal of Computatonal Informaton Systems 7: 13 (2011) 4740-4747 Avalable at http://www.jofcs.com A Load-Balancng Algorthm for Cluster-based Mult-core Web Servers Guohua YOU, Yng ZHAO College of Informaton

More information

Open Access A Load Balancing Strategy with Bandwidth Constraint in Cloud Computing. Jing Deng 1,*, Ping Guo 2, Qi Li 3, Haizhu Chen 1

Open Access A Load Balancing Strategy with Bandwidth Constraint in Cloud Computing. Jing Deng 1,*, Ping Guo 2, Qi Li 3, Haizhu Chen 1 Send Orders for Reprnts to reprnts@benthamscence.ae The Open Cybernetcs & Systemcs Journal, 2014, 8, 115-121 115 Open Access A Load Balancng Strategy wth Bandwdth Constrant n Cloud Computng Jng Deng 1,*,

More information

RESEARCH ON DUAL-SHAKER SINE VIBRATION CONTROL. Yaoqi FENG 1, Hanping QIU 1. China Academy of Space Technology (CAST) yaoqi.feng@yahoo.

RESEARCH ON DUAL-SHAKER SINE VIBRATION CONTROL. Yaoqi FENG 1, Hanping QIU 1. China Academy of Space Technology (CAST) yaoqi.feng@yahoo. ICSV4 Carns Australa 9- July, 007 RESEARCH ON DUAL-SHAKER SINE VIBRATION CONTROL Yaoq FENG, Hanpng QIU Dynamc Test Laboratory, BISEE Chna Academy of Space Technology (CAST) yaoq.feng@yahoo.com Abstract

More information

A Secure Password-Authenticated Key Agreement Using Smart Cards

A Secure Password-Authenticated Key Agreement Using Smart Cards A Secure Password-Authentcated Key Agreement Usng Smart Cards Ka Chan 1, Wen-Chung Kuo 2 and Jn-Chou Cheng 3 1 Department of Computer and Informaton Scence, R.O.C. Mltary Academy, Kaohsung 83059, Tawan,

More information

Cloud-based Social Application Deployment using Local Processing and Global Distribution

Cloud-based Social Application Deployment using Local Processing and Global Distribution Cloud-based Socal Applcaton Deployment usng Local Processng and Global Dstrbuton Zh Wang *, Baochun L, Lfeng Sun *, and Shqang Yang * * Bejng Key Laboratory of Networked Multmeda Department of Computer

More information

A DATA MINING APPLICATION IN A STUDENT DATABASE

A DATA MINING APPLICATION IN A STUDENT DATABASE JOURNAL OF AERONAUTICS AND SPACE TECHNOLOGIES JULY 005 VOLUME NUMBER (53-57) A DATA MINING APPLICATION IN A STUDENT DATABASE Şenol Zafer ERDOĞAN Maltepe Ünversty Faculty of Engneerng Büyükbakkalköy-Istanbul

More information

A hybrid global optimization algorithm based on parallel chaos optimization and outlook algorithm

A hybrid global optimization algorithm based on parallel chaos optimization and outlook algorithm Avalable onlne www.ocpr.com Journal of Chemcal and Pharmaceutcal Research, 2014, 6(7):1884-1889 Research Artcle ISSN : 0975-7384 CODEN(USA) : JCPRC5 A hybrd global optmzaton algorthm based on parallel

More information

A Dynamic Load Balancing for Massive Multiplayer Online Game Server

A Dynamic Load Balancing for Massive Multiplayer Online Game Server A Dynamc Load Balancng for Massve Multplayer Onlne Game Server Jungyoul Lm, Jaeyong Chung, Jnryong Km and Kwanghyun Shm Dgtal Content Research Dvson Electroncs and Telecommuncatons Research Insttute Daejeon,

More information

LIFETIME INCOME OPTIONS

LIFETIME INCOME OPTIONS LIFETIME INCOME OPTIONS May 2011 by: Marca S. Wagner, Esq. The Wagner Law Group A Professonal Corporaton 99 Summer Street, 13 th Floor Boston, MA 02110 Tel: (617) 357-5200 Fax: (617) 357-5250 www.ersa-lawyers.com

More information

METHODOLOGY TO DETERMINE RELATIONSHIPS BETWEEN PERFORMANCE FACTORS IN HADOOP CLOUD COMPUTING APPLICATIONS

METHODOLOGY TO DETERMINE RELATIONSHIPS BETWEEN PERFORMANCE FACTORS IN HADOOP CLOUD COMPUTING APPLICATIONS METHODOLOGY TO DETERMINE RELATIONSHIPS BETWEEN PERFORMANCE FACTORS IN HADOOP CLOUD COMPUTING APPLICATIONS Lus Eduardo Bautsta Vllalpando 1,2, Alan Aprl 1 and Alan Abran 1 1 Department of Software Engneerng

More information

Mathematical Framework for A Novel Database Replication Algorithm

Mathematical Framework for A Novel Database Replication Algorithm I.J.Modern Educaton and Computer Scence, 203, 9, -0 Publshed Onlne October 203 n MECS (http://www.mecs-press.org/) DOI: 0.585/jmecs.203.09.0 Mathematcal Framework for A Novel Database Replcaton Algorthm

More information

Politecnico di Torino. Porto Institutional Repository

Politecnico di Torino. Porto Institutional Repository Poltecnco d Torno Porto Insttutonal Repostory [Artcle] A cost-effectve cloud computng framework for acceleratng multmeda communcaton smulatons Orgnal Ctaton: D. Angel, E. Masala (2012). A cost-effectve

More information

Number of Levels Cumulative Annual operating Income per year construction costs costs ($) ($) ($) 1 600,000 35,000 100,000 2 2,200,000 60,000 350,000

Number of Levels Cumulative Annual operating Income per year construction costs costs ($) ($) ($) 1 600,000 35,000 100,000 2 2,200,000 60,000 350,000 Problem Set 5 Solutons 1 MIT s consderng buldng a new car park near Kendall Square. o unversty funds are avalable (overhead rates are under pressure and the new faclty would have to pay for tself from

More information

VRT012 User s guide V0.1. Address: Žirmūnų g. 27, Vilnius LT-09105, Phone: (370-5) 2127472, Fax: (370-5) 276 1380, Email: info@teltonika.

VRT012 User s guide V0.1. Address: Žirmūnų g. 27, Vilnius LT-09105, Phone: (370-5) 2127472, Fax: (370-5) 276 1380, Email: info@teltonika. VRT012 User s gude V0.1 Thank you for purchasng our product. We hope ths user-frendly devce wll be helpful n realsng your deas and brngng comfort to your lfe. Please take few mnutes to read ths manual

More information

Multi-sensor Data Fusion for Cyber Security Situation Awareness

Multi-sensor Data Fusion for Cyber Security Situation Awareness Avalable onlne at www.scencedrect.com Proceda Envronmental Scences 0 (20 ) 029 034 20 3rd Internatonal Conference on Envronmental 3rd Internatonal Conference on Envronmental Scence and Informaton Applcaton

More information

Daily Mood Assessment based on Mobile Phone Sensing

Daily Mood Assessment based on Mobile Phone Sensing 2012 Nnth Internatonal Conference on Wearable and Implantable Body Sensor Networks Daly Mood Assessment based on Moble Phone Sensng Yuanchao Ma Bn Xu Yn Ba Guodong Sun Department of Computer Scence and

More information

Auditing Cloud Service Level Agreement on VM CPU Speed

Auditing Cloud Service Level Agreement on VM CPU Speed Audtng Cloud Servce Level Agreement on VM CPU Speed Ryan Houlhan, aojang Du, Chu C. Tan, Je Wu Department of Computer and Informaton Scences Temple Unversty Phladelpha, PA 19122, USA Emal: {ryan.houlhan,

More information

IMPACT ANALYSIS OF A CELLULAR PHONE

IMPACT ANALYSIS OF A CELLULAR PHONE 4 th ASA & μeta Internatonal Conference IMPACT AALYSIS OF A CELLULAR PHOE We Lu, 2 Hongy L Bejng FEAonlne Engneerng Co.,Ltd. Bejng, Chna ABSTRACT Drop test smulaton plays an mportant role n nvestgatng

More information

Effective Network Defense Strategies against Malicious Attacks with Various Defense Mechanisms under Quality of Service Constraints

Effective Network Defense Strategies against Malicious Attacks with Various Defense Mechanisms under Quality of Service Constraints Effectve Network Defense Strateges aganst Malcous Attacks wth Varous Defense Mechansms under Qualty of Servce Constrants Frank Yeong-Sung Ln Department of Informaton Natonal Tawan Unversty Tape, Tawan,

More information

An RFID Distance Bounding Protocol

An RFID Distance Bounding Protocol An RFID Dstance Boundng Protocol Gerhard P. Hancke and Markus G. Kuhn May 22, 2006 An RFID Dstance Boundng Protocol p. 1 Dstance boundng Verfer d Prover Places an upper bound on physcal dstance Does not

More information

A Dynamic Energy-Efficiency Mechanism for Data Center Networks

A Dynamic Energy-Efficiency Mechanism for Data Center Networks A Dynamc Energy-Effcency Mechansm for Data Center Networks Sun Lang, Zhang Jnfang, Huang Daochao, Yang Dong, Qn Yajuan A Dynamc Energy-Effcency Mechansm for Data Center Networks 1 Sun Lang, 1 Zhang Jnfang,

More information

PAS: A Packet Accounting System to Limit the Effects of DoS & DDoS. Debish Fesehaye & Klara Naherstedt University of Illinois-Urbana Champaign

PAS: A Packet Accounting System to Limit the Effects of DoS & DDoS. Debish Fesehaye & Klara Naherstedt University of Illinois-Urbana Champaign PAS: A Packet Accountng System to Lmt the Effects of DoS & DDoS Debsh Fesehaye & Klara Naherstedt Unversty of Illnos-Urbana Champagn DoS and DDoS DDoS attacks are ncreasng threats to our dgtal world. Exstng

More information

Efficient Bandwidth Management in Broadband Wireless Access Systems Using CAC-based Dynamic Pricing

Efficient Bandwidth Management in Broadband Wireless Access Systems Using CAC-based Dynamic Pricing Effcent Bandwdth Management n Broadband Wreless Access Systems Usng CAC-based Dynamc Prcng Bader Al-Manthar, Ndal Nasser 2, Najah Abu Al 3, Hossam Hassanen Telecommuncatons Research Laboratory School of

More information

Complex Service Provisioning in Collaborative Cloud Markets

Complex Service Provisioning in Collaborative Cloud Markets Melane Sebenhaar, Ulrch Lampe, Tm Lehrg, Sebastan Zöller, Stefan Schulte, Ralf Stenmetz: Complex Servce Provsonng n Collaboratve Cloud Markets. In: W. Abramowcz et al. (Eds.): Proceedngs of the 4th European

More information

Network Aware Load-Balancing via Parallel VM Migration for Data Centers

Network Aware Load-Balancing via Parallel VM Migration for Data Centers Network Aware Load-Balancng va Parallel VM Mgraton for Data Centers Kun-Tng Chen 2, Chen Chen 12, Po-Hsang Wang 2 1 Informaton Technology Servce Center, 2 Department of Computer Scence Natonal Chao Tung

More information

Robust Design of Public Storage Warehouses. Yeming (Yale) Gong EMLYON Business School

Robust Design of Public Storage Warehouses. Yeming (Yale) Gong EMLYON Business School Robust Desgn of Publc Storage Warehouses Yemng (Yale) Gong EMLYON Busness School Rene de Koster Rotterdam school of management, Erasmus Unversty Abstract We apply robust optmzaton and revenue management

More information

Performance Analysis and Coding Strategy of ECOC SVMs

Performance Analysis and Coding Strategy of ECOC SVMs Internatonal Journal of Grd and Dstrbuted Computng Vol.7, No. (04), pp.67-76 http://dx.do.org/0.457/jgdc.04.7..07 Performance Analyss and Codng Strategy of ECOC SVMs Zhgang Yan, and Yuanxuan Yang, School

More information

Intra-year Cash Flow Patterns: A Simple Solution for an Unnecessary Appraisal Error

Intra-year Cash Flow Patterns: A Simple Solution for an Unnecessary Appraisal Error Intra-year Cash Flow Patterns: A Smple Soluton for an Unnecessary Apprasal Error By C. Donald Wggns (Professor of Accountng and Fnance, the Unversty of North Florda), B. Perry Woodsde (Assocate Professor

More information

J. Parallel Distrib. Comput. Environment-conscious scheduling of HPC applications on distributed Cloud-oriented data centers

J. Parallel Distrib. Comput. Environment-conscious scheduling of HPC applications on distributed Cloud-oriented data centers J. Parallel Dstrb. Comput. 71 (2011) 732 749 Contents lsts avalable at ScenceDrect J. Parallel Dstrb. Comput. ournal homepage: www.elsever.com/locate/pdc Envronment-conscous schedulng of HPC applcatons

More information

Load Balancing By Max-Min Algorithm in Private Cloud Environment

Load Balancing By Max-Min Algorithm in Private Cloud Environment Internatonal Journal of Scence and Research (IJSR ISSN (Onlne: 2319-7064 Index Coperncus Value (2013: 6.14 Impact Factor (2013: 4.438 Load Balancng By Max-Mn Algorthm n Prvate Cloud Envronment S M S Suntharam

More information

On the Optimal Control of a Cascade of Hydro-Electric Power Stations

On the Optimal Control of a Cascade of Hydro-Electric Power Stations On the Optmal Control of a Cascade of Hydro-Electrc Power Statons M.C.M. Guedes a, A.F. Rbero a, G.V. Smrnov b and S. Vlela c a Department of Mathematcs, School of Scences, Unversty of Porto, Portugal;

More information

A Self-Organized, Fault-Tolerant and Scalable Replication Scheme for Cloud Storage

A Self-Organized, Fault-Tolerant and Scalable Replication Scheme for Cloud Storage A Self-Organzed, Fault-Tolerant and Scalable Replcaton Scheme for Cloud Storage Ncolas Bonvn, Thanass G. Papaoannou and Karl Aberer School of Computer and Communcaton Scences École Polytechnque Fédérale

More information

Project Networks With Mixed-Time Constraints

Project Networks With Mixed-Time Constraints Project Networs Wth Mxed-Tme Constrants L Caccetta and B Wattananon Western Australan Centre of Excellence n Industral Optmsaton (WACEIO) Curtn Unversty of Technology GPO Box U1987 Perth Western Australa

More information

Erasure Codes-based Storage-aware Protocol for Preserving Cloud Data under Correlation Failures

Erasure Codes-based Storage-aware Protocol for Preserving Cloud Data under Correlation Failures Internatonal Journal of Grd Dstrbuton Computng, pp.5-26 http://dx.do.org/0.4257/gdc.205.8.2. Erasure Codes-based Storage-aware Protocol for Preservng Cloud Data under Correlaton Falures Zhqang Ruan and

More information

AN EFFICIENT GROUP AUTHENTICATION FOR GROUP COMMUNICATIONS

AN EFFICIENT GROUP AUTHENTICATION FOR GROUP COMMUNICATIONS Internatonal Journal of Network Securty & Its Applcatons (IJNSA), Vol.5, No.3, May 2013 AN EFFICIENT GROUP AUTHENTICATION FOR GROUP COMMUNICATIONS Len Harn 1 and Changlu Ln 2 1 Department of Computer Scence

More information

What is Candidate Sampling

What is Candidate Sampling What s Canddate Samplng Say we have a multclass or mult label problem where each tranng example ( x, T ) conssts of a context x a small (mult)set of target classes T out of a large unverse L of possble

More information

Application of Multi-Agents for Fault Detection and Reconfiguration of Power Distribution Systems

Application of Multi-Agents for Fault Detection and Reconfiguration of Power Distribution Systems 1 Applcaton of Mult-Agents for Fault Detecton and Reconfguraton of Power Dstrbuton Systems K. Nareshkumar, Member, IEEE, M. A. Choudhry, Senor Member, IEEE, J. La, A. Felach, Senor Member, IEEE Abstract--The

More information

Fair Virtual Bandwidth Allocation Model in Virtual Data Centers

Fair Virtual Bandwidth Allocation Model in Virtual Data Centers Far Vrtual Bandwdth Allocaton Model n Vrtual Data Centers Yng Yuan, Cu-rong Wang, Cong Wang School of Informaton Scence and Engneerng ortheastern Unversty Shenyang, Chna School of Computer and Communcaton

More information

Research of concurrency control protocol based on the main memory database

Research of concurrency control protocol based on the main memory database Research of concurrency control protocol based on the man memory database Abstract Yonghua Zhang * Shjazhuang Unversty of economcs, Shjazhuang, Shjazhuang, Chna Receved 1 October 2014, www.cmnt.lv The

More information

J. Parallel Distrib. Comput.

J. Parallel Distrib. Comput. J. Parallel Dstrb. Comput. 71 (2011) 62 76 Contents lsts avalable at ScenceDrect J. Parallel Dstrb. Comput. journal homepage: www.elsever.com/locate/jpdc Optmzng server placement n dstrbuted systems n

More information

P2P/ Grid-based Overlay Architecture to Support VoIP Services in Large Scale IP Networks

P2P/ Grid-based Overlay Architecture to Support VoIP Services in Large Scale IP Networks PP/ Grd-based Overlay Archtecture to Support VoIP Servces n Large Scale IP Networks We Yu *, Srram Chellappan # and Dong Xuan # * Dept. of Computer Scence, Texas A&M Unversty, U.S.A. {weyu}@cs.tamu.edu

More information

APPLICATION OF PROBE DATA COLLECTED VIA INFRARED BEACONS TO TRAFFIC MANEGEMENT

APPLICATION OF PROBE DATA COLLECTED VIA INFRARED BEACONS TO TRAFFIC MANEGEMENT APPLICATION OF PROBE DATA COLLECTED VIA INFRARED BEACONS TO TRAFFIC MANEGEMENT Toshhko Oda (1), Kochro Iwaoka (2) (1), (2) Infrastructure Systems Busness Unt, Panasonc System Networks Co., Ltd. Saedo-cho

More information

A Cost-Effective Strategy for Intermediate Data Storage in Scientific Cloud Workflow Systems

A Cost-Effective Strategy for Intermediate Data Storage in Scientific Cloud Workflow Systems A Cost-Effectve Strategy for Intermedate Data Storage n Scentfc Cloud Workflow Systems Dong Yuan, Yun Yang, Xao Lu, Jnjun Chen Faculty of Informaton and Communcaton Technologes, Swnburne Unversty of Technology

More information

QOS DISTRIBUTION MONITORING FOR PERFORMANCE MANAGEMENT IN MULTIMEDIA NETWORKS

QOS DISTRIBUTION MONITORING FOR PERFORMANCE MANAGEMENT IN MULTIMEDIA NETWORKS QOS DISTRIBUTION MONITORING FOR PERFORMANCE MANAGEMENT IN MULTIMEDIA NETWORKS Yumng Jang, Chen-Khong Tham, Ch-Chung Ko Department Electrcal Engneerng Natonal Unversty Sngapore 119260 Sngapore Emal: {engp7450,

More information

A Study on Security Technique of Cloud Data Processing in Electronic Commerce

A Study on Security Technique of Cloud Data Processing in Electronic Commerce Internatonal Journal of Securty and Its Applcatons, pp.283-290 http://dx.do.org/10.14257/sa.2014.8.2.29 A Study on Securty Technque of Cloud Data Processng n Electronc Commerce We Da 1, Xuefang Zhang 2

More information

CONTENTS Introduction... 3

CONTENTS Introduction... 3 Cuty ourm c r os of t Ex c hangeser v er s t or agec os t sbyupt o85% Howema lar c h v ngs ol ut onsex pand y ournat v eema lappl c at on' sc apab l t es CONTENTS Introducton... 3 Emal Storage Management...

More information

Ensuring Data Storage Security in Cloud Computing

Ensuring Data Storage Security in Cloud Computing 1 Ensurng Data Storage Securty n Cloud Computng Cong Wang,Qan Wang, Ku Ren, and Wenjng Lou Dept of ECE, Illnos Insttute of Technology, Emal: {cwang, qwang, kren}@ecetedu Dept of ECE, Worcester Polytechnc

More information

Vision Mouse. Saurabh Sarkar a* University of Cincinnati, Cincinnati, USA ABSTRACT 1. INTRODUCTION

Vision Mouse. Saurabh Sarkar a* University of Cincinnati, Cincinnati, USA ABSTRACT 1. INTRODUCTION Vson Mouse Saurabh Sarkar a* a Unversty of Cncnnat, Cncnnat, USA ABSTRACT The report dscusses a vson based approach towards trackng of eyes and fngers. The report descrbes the process of locatng the possble

More information

18 (2008), 211 220 INCREASING THE RENTABILITY OF TRANSPORTATION AND DISTRIBUTION ACTIVITIES BY USING VEHICLE ROUTING APPLICATIONS

18 (2008), 211 220 INCREASING THE RENTABILITY OF TRANSPORTATION AND DISTRIBUTION ACTIVITIES BY USING VEHICLE ROUTING APPLICATIONS Increasng the rentablty of transportaton and dstrbuton actvtes by usng vehcle routng applcatons UNIVERSITATEA DIN BACĂU STUDII ŞI CERCETĂRI ŞTIINŢIFICE Sera: MATEMATICĂ Nr. 18 (2008), pag. 211 220 INCREASING

More information

A Study on Secure Data Storage Strategy in Cloud Computing

A Study on Secure Data Storage Strategy in Cloud Computing Journal of Convergence Informaton Technology Volume 5, Number 7, Setember 00 A Study on Secure Data Storage Strategy n Cloud Comutng Danwe Chen, Yanjun He, Frst Author College of Comuter Technology, Nanjng

More information

Data Mining from the Information Systems: Performance Indicators at Masaryk University in Brno

Data Mining from the Information Systems: Performance Indicators at Masaryk University in Brno Data Mnng from the Informaton Systems: Performance Indcators at Masaryk Unversty n Brno Mkuláš Bek EUA Workshop Strasbourg, 1-2 December 2006 1 Locaton of Brno Brno EUA Workshop Strasbourg, 1-2 December

More information

Performance Management and Evaluation Research to University Students

Performance Management and Evaluation Research to University Students 631 A publcaton of CHEMICAL ENGINEERING TRANSACTIONS VOL. 46, 2015 Guest Edtors: Peyu Ren, Yancang L, Hupng Song Copyrght 2015, AIDIC Servz S.r.l., ISBN 978-88-95608-37-2; ISSN 2283-9216 The Italan Assocaton

More information

An Efficient Social Search Method Based on Location and User Preferences in Mobile Environments

An Efficient Social Search Method Based on Location and User Preferences in Mobile Environments , pp.355-368 http://dx.do.org/10.14257/jmue.2015.10.12.34 An Effcent Socal Search Method Based on Locaton and User Preferences n Moble Envronments Byoungyup Lee 1, Mnje Ahn 2, Jongtae Lm 2, Kyungsoo Bok

More information

LITERATURE REVIEW: VARIOUS PRIORITY BASED TASK SCHEDULING ALGORITHMS IN CLOUD COMPUTING

LITERATURE REVIEW: VARIOUS PRIORITY BASED TASK SCHEDULING ALGORITHMS IN CLOUD COMPUTING LITERATURE REVIEW: VARIOUS PRIORITY BASED TASK SCHEDULING ALGORITHMS IN CLOUD COMPUTING 1 MS. POOJA.P.VASANI, 2 MR. NISHANT.S. SANGHANI 1 M.Tech. [Software Systems] Student, Patel College of Scence and

More information

Calculating the high frequency transmission line parameters of power cables

Calculating the high frequency transmission line parameters of power cables < ' Calculatng the hgh frequency transmsson lne parameters of power cables Authors: Dr. John Dcknson, Laboratory Servces Manager, N 0 RW E B Communcatons Mr. Peter J. Ncholson, Project Assgnment Manager,

More information

ACKNOWLEDGEMENTS. Core Operational Guidelines for Telehealth Services Involving Provider-Patient Interactions

ACKNOWLEDGEMENTS. Core Operational Guidelines for Telehealth Services Involving Provider-Patient Interactions Cor eoper at onal Gu del nes f ort el eheal t hser v c esi nv ol v ng Pr ov der Pat enti nt er ac t ons May201 4 ACKNOWLEDGEMENTS The Amercan Telemedcne Assocaton (ATA) wshes to express sncere apprecaton

More information

Overview of monitoring and evaluation

Overview of monitoring and evaluation 540 Toolkt to Combat Traffckng n Persons Tool 10.1 Overvew of montorng and evaluaton Overvew Ths tool brefly descrbes both montorng and evaluaton, and the dstncton between the two. What s montorng? Montorng

More information

An MILP model for planning of batch plants operating in a campaign-mode

An MILP model for planning of batch plants operating in a campaign-mode An MILP model for plannng of batch plants operatng n a campagn-mode Yanna Fumero Insttuto de Desarrollo y Dseño CONICET UTN yfumero@santafe-concet.gov.ar Gabrela Corsano Insttuto de Desarrollo y Dseño

More information

A High-confidence Cyber-Physical Alarm System: Design and Implementation

A High-confidence Cyber-Physical Alarm System: Design and Implementation A Hgh-confdence Cyber-Physcal Alarm System: Desgn and Implementaton Longhua Ma 1,2, Tengka Yuan 1, Feng Xa 3, Mng Xu 1, Jun Yao 1, Meng Shao 4 1 Department of Control Scence and Engneerng, Zhejang Unversty,

More information

MAC Layer Service Time Distribution of a Fixed Priority Real Time Scheduler over 802.11

MAC Layer Service Time Distribution of a Fixed Priority Real Time Scheduler over 802.11 Internatonal Journal of Software Engneerng and Its Applcatons Vol., No., Aprl, 008 MAC Layer Servce Tme Dstrbuton of a Fxed Prorty Real Tme Scheduler over 80. Inès El Korb Ecole Natonale des Scences de

More information

Efficient Project Portfolio as a tool for Enterprise Risk Management

Efficient Project Portfolio as a tool for Enterprise Risk Management Effcent Proect Portfolo as a tool for Enterprse Rsk Management Valentn O. Nkonov Ural State Techncal Unversty Growth Traectory Consultng Company January 5, 27 Effcent Proect Portfolo as a tool for Enterprse

More information

EVALUATING THE PERCEIVED QUALITY OF INFRASTRUCTURE-LESS VOIP. Kun-chan Lan and Tsung-hsun Wu

EVALUATING THE PERCEIVED QUALITY OF INFRASTRUCTURE-LESS VOIP. Kun-chan Lan and Tsung-hsun Wu EVALUATING THE PERCEIVED QUALITY OF INFRASTRUCTURE-LESS VOIP Kun-chan Lan and Tsung-hsun Wu Natonal Cheng Kung Unversty klan@cse.ncku.edu.tw, ryan@cse.ncku.edu.tw ABSTRACT Voce over IP (VoIP) s one of

More information

Data security in Intelligent Transport Systems

Data security in Intelligent Transport Systems Data securty n Intellgent Transport Systems Tomas ZELINKA Czech Techncal Unversty n rague, FTS 110 00 raha 1, Czech Republc Mroslav SVITEK Czech Techncal Unversty n rague, FTS 110 00 raha 1, Czech Republc

More information

iavenue iavenue i i i iavenue iavenue iavenue

iavenue iavenue i i i iavenue iavenue iavenue Saratoga Systems' enterprse-wde Avenue CRM system s a comprehensve web-enabled software soluton. Ths next generaton system enables you to effectvely manage and enhance your customer relatonshps n both

More information

Hosted Voice Self Service Installation Guide

Hosted Voice Self Service Installation Guide Hosted Voce Self Servce Installaton Gude Contact us at 1-877-355-1501 learnmore@elnk.com www.earthlnk.com 2015 EarthLnk. Trademarks are property of ther respectve owners. All rghts reserved. 1071-07629

More information

Course outline. Financial Time Series Analysis. Overview. Data analysis. Predictive signal. Trading strategy

Course outline. Financial Time Series Analysis. Overview. Data analysis. Predictive signal. Trading strategy Fnancal Tme Seres Analyss Patrck McSharry patrck@mcsharry.net www.mcsharry.net Trnty Term 2014 Mathematcal Insttute Unversty of Oxford Course outlne 1. Data analyss, probablty, correlatons, vsualsaton

More information

CLOUD COMPUTING AUDIT

CLOUD COMPUTING AUDIT U.P.B. Sc. Bull., Seres C, Vol. 77, Iss. 3, 2015 ISSN 2286-3540 CLOUD COMPUTING AUDIT Georgana MATEESCU 1, Valentn SGÂRCIU 2 Ths paper presents a personal approach of conductng the audt process n cloud

More information

Resource Scheduling Based on Dynamic Dependence Injection in Virtualization-based Simulation Grid

Resource Scheduling Based on Dynamic Dependence Injection in Virtualization-based Simulation Grid Proceedngs of the 200 4th Internatonal Conference on Computer Supported Cooperatve Work n Desgn Resource Schedulng Based on Dynamc Dependence Injecton n Vrtualzaton-based Smulaton Grd Hanbng Lu,Hongy Su,

More information

benefit is 2, paid if the policyholder dies within the year, and probability of death within the year is ).

benefit is 2, paid if the policyholder dies within the year, and probability of death within the year is ). REVIEW OF RISK MANAGEMENT CONCEPTS LOSS DISTRIBUTIONS AND INSURANCE Loss and nsurance: When someone s subject to the rsk of ncurrng a fnancal loss, the loss s generally modeled usng a random varable or

More information