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  Subjects -> LIBRARY AND INFORMATION SCIENCES (Total: 358 journals)
    - DIGITAL CURATION AND PRESERVATION (12 journals)
    - LIBRARY AND INFORMATION SCIENCES (346 journals)

LIBRARY AND INFORMATION SCIENCES (346 journals)                  1 2 | Last

Showing 1 - 200 of 379 Journals sorted alphabetically
027.7 Zeitschrift für Bibliothekskultur / Journal for Library Culture     Open Access   (Followers: 63)
Academy of Information and Management Sciences Journal     Full-text available via subscription   (Followers: 73)
Access     Full-text available via subscription   (Followers: 26)
Acervo : Revista do Arquivo Nacional     Open Access  
African Journal of Library, Archives and Information Science     Full-text available via subscription   (Followers: 70)
Against the Grain     Partially Free   (Followers: 187)
AIB Studi     Full-text available via subscription   (Followers: 12)
Aldébaran     Open Access   (Followers: 3)
Alexandría : Revista de Ciencias de la Información     Open Access   (Followers: 14)
Alexandria : The Journal of National and International Library and Information Issues     Full-text available via subscription   (Followers: 66)
Alsic     Open Access   (Followers: 19)
American Archivist     Hybrid Journal   (Followers: 176)
American Libraries     Partially Free   (Followers: 219)
Anales de Documentacion     Open Access   (Followers: 15)
Annals of Library and Information Studies (ALIS)     Open Access   (Followers: 321)
ANZTLA EJournal     Open Access   (Followers: 5)
Archeion Online     Open Access   (Followers: 2)
Archival Science     Hybrid Journal   (Followers: 54)
Archivalische Zeitschrift     Hybrid Journal   (Followers: 4)
Archivaria     Full-text available via subscription   (Followers: 23)
Archives and Manuscripts     Hybrid Journal   (Followers: 47)
Archives and Museum Informatics     Hybrid Journal   (Followers: 129)
Ariadne Magazine     Open Access   (Followers: 217)
Aslib Journal of Information Management     Hybrid Journal   (Followers: 22)
Aslib Proceedings     Hybrid Journal   (Followers: 251)
AtoZ : novas práticas em informação e conhecimento     Open Access   (Followers: 2)
Australasian Journal of Information Systems     Open Access   (Followers: 17)
Australasian Public Libraries and Information Services     Full-text available via subscription   (Followers: 39)
Australian Academic & Research Libraries     Full-text available via subscription   (Followers: 142)
Australian Library Journal     Full-text available via subscription   (Followers: 228)
B Sides     Open Access   (Followers: 23)
Baca : Jurnal Dokumentasi dan Informasi     Open Access  
Bangladesh Journal of Library and Information Science     Open Access   (Followers: 47)
Behavioral & Social Sciences Librarian     Hybrid Journal   (Followers: 173)
Berkala Ilmu Perpustakaan dan Informasi     Open Access  
BiblioCanto     Open Access  
Bibliometrie - Praxis und Forschung     Open Access   (Followers: 29)
Biblios     Open Access   (Followers: 19)
Biblioteca Escolar em Revista     Open Access  
Biblioteca Universitaria     Open Access   (Followers: 18)
Bibliotecas : Revista de la Escuela de Bibliotecología, Documentación e Información     Open Access   (Followers: 2)
Bibliotecas Universitárias : pesquisas, experiências e perspectivas     Open Access  
Bibliotecas. Anales de Investigacion     Open Access  
Biblioteka     Open Access   (Followers: 3)
Biblioteka i Edukacja     Open Access   (Followers: 4)
Bibliotheca Orientalis     Full-text available via subscription   (Followers: 12)
Bibliothecae.it     Open Access  
Bibliothek Forschung und Praxis     Hybrid Journal   (Followers: 148)
Bibliotheksdienst     Hybrid Journal   (Followers: 42)
BIBLOS - Revista do Departamento de Biblioteconomia e História     Open Access   (Followers: 13)
BiD : textos universitaris de biblioteconomia i documentació     Open Access   (Followers: 6)
Bilgi Dünyası     Open Access   (Followers: 5)
Bioinformatics     Hybrid Journal   (Followers: 309)
Biuletyn EBIB     Open Access  
Boletín Cultural y Bibliográfico     Open Access   (Followers: 2)
Book History     Full-text available via subscription   (Followers: 124)
Bridgewater Review     Open Access   (Followers: 5)
BuB - Forum Bibliothek und Information     Free   (Followers: 18)
Bulletin des bibliotheques de France     Full-text available via subscription   (Followers: 5)
Bulletin du Centre de recherche français à Jérusalem     Open Access   (Followers: 8)
Bulletin of the Association for Information Science and Technology     Open Access   (Followers: 17)
Bulletin of the John Rylands Library     Hybrid Journal   (Followers: 12)
Canadian Journal of Information and Library Science     Full-text available via subscription   (Followers: 282)
Cataloging & Classification Quarterly     Hybrid Journal   (Followers: 208)
CERN IdeaSquare Journal of Experimental Innovation     Open Access  
Children and Libraries : The Journal of the Association for Library Service to Children     Full-text available via subscription   (Followers: 14)
CIC. Cuadernos de Informacion y Comunicacion     Open Access   (Followers: 8)
Ciência da Informação em Revista     Open Access  
Ciencias de la Información     Open Access   (Followers: 13)
Code4Lib Journal     Open Access   (Followers: 198)
Códices     Open Access   (Followers: 1)
Collaborative Librarianship     Open Access   (Followers: 30)
College & Undergraduate Libraries     Hybrid Journal   (Followers: 231)
College & Research Libraries     Open Access   (Followers: 466)
College & Research Libraries News     Partially Free   (Followers: 312)
Communicate : Journal of Library and Information Science     Full-text available via subscription   (Followers: 52)
Communication Booknotes Quarterly     Hybrid Journal   (Followers: 15)
Communications in Information Literacy     Open Access   (Followers: 273)
Community & Junior College Libraries     Hybrid Journal   (Followers: 50)
Computers in Libraries     Full-text available via subscription   (Followers: 54)
Cuadernos de Gestión de Información     Open Access  
D-Lib Magazine     Open Access   (Followers: 857)
Data Curation Profiles Directory     Open Access   (Followers: 3)
DESIDOC Journal of Library & Information Technology     Open Access   (Followers: 86)
Digital Investigation     Full-text available via subscription   (Followers: 468)
Digital Library Perspectives     Hybrid Journal   (Followers: 15)
Documentación de las Ciencias de la Información     Open Access  
Documentation et bibliothèques     Full-text available via subscription   (Followers: 5)
e & i Elektrotechnik und Informationstechnik     Hybrid Journal   (Followers: 8)
e-Ciencias de la Información     Open Access   (Followers: 1)
Eastern Librarian     Open Access   (Followers: 12)
EDUCAUSE Review     Full-text available via subscription   (Followers: 194)
Edulib : Journal of Library and Information Science     Open Access   (Followers: 1)
Egyptian Informatics Journal     Open Access   (Followers: 10)
El Profesional de la Informacion     Full-text available via subscription   (Followers: 19)
Em Questão     Open Access   (Followers: 2)
Encontros Bibli : revista eletrônica de biblioteconomia e ciência da informação     Open Access   (Followers: 2)
Ethics and Information Technology     Hybrid Journal   (Followers: 73)
European Journal of Information Systems     Hybrid Journal   (Followers: 134)
Evidence Based Library and Information Practice     Open Access   (Followers: 409)
Faculty of Information Quarterly     Open Access   (Followers: 27)
Focus on International Library and Information Work     Full-text available via subscription   (Followers: 16)
Foundations and Trends® in Information Retrieval     Full-text available via subscription   (Followers: 125)
FreePint     Partially Free   (Followers: 19)
Georgia Library Quarterly     Open Access   (Followers: 29)
Ghana Library Journal     Full-text available via subscription   (Followers: 14)
Health Information Management Journal     Hybrid Journal   (Followers: 13)
Hipertext.net : Anuario Académico sobre Documentación Digital y Comunicación Interactiva     Open Access  
HLA News     Full-text available via subscription   (Followers: 6)
Human Factors in Information Technology     Full-text available via subscription   (Followers: 42)
i-com     Hybrid Journal   (Followers: 7)
Idaho Librarian     Free   (Followers: 11)
IFLA Journal     Hybrid Journal   (Followers: 233)
In Monte Artium     Full-text available via subscription   (Followers: 4)
In the Library with the Lead Pipe     Open Access   (Followers: 85)
InCite     Full-text available via subscription   (Followers: 24)
Informaatiotutkimus     Open Access   (Followers: 5)
Informação & Informação     Open Access   (Followers: 3)
Informação em Pauta     Open Access  
Información, Cultura y Sociedad     Open Access   (Followers: 3)
Informatio. Revista del Instituto de Información de la Facultad de Información y Comunicación     Open Access  
Information     Open Access   (Followers: 51)
Information & Culture : A Journal of History     Full-text available via subscription   (Followers: 34)
Information - Wissenschaft & Praxis     Hybrid Journal   (Followers: 35)
Information Manager (The)     Open Access   (Followers: 24)
Information Processing & Management     Hybrid Journal   (Followers: 146)
Information Retrieval     Hybrid Journal   (Followers: 184)
Information Sciences     Hybrid Journal   (Followers: 162)
Information Systems Frontiers     Hybrid Journal   (Followers: 29)
Information Systems Research     Full-text available via subscription   (Followers: 139)
Information Technologies & International Development     Open Access   (Followers: 127)
Information Technologist (The)     Full-text available via subscription   (Followers: 15)
Information Technology and Libraries     Open Access   (Followers: 306)
Information Today     Full-text available via subscription   (Followers: 30)
Informationspraxis     Open Access   (Followers: 10)
Informationswissenschaft : Theorie, Methode und Praxis     Open Access   (Followers: 1)
Informing Science : The International Journal of an Emerging Transdiscipline (InformingSciJ)     Open Access   (Followers: 9)
iNFOTEZY     Open Access  
Innovation : Journal of Appropriate Librarianship and Information Work in Southern Africa     Full-text available via subscription   (Followers: 4)
Insights : the UKSG journal     Open Access   (Followers: 114)
InterActions: UCLA Journal of Education and Information     Open Access   (Followers: 25)
Interdisciplinary Journal of e-Skills and Lifelong Learning     Open Access  
Interdisciplinary Journal of Information, Knowledge, and Management     Open Access  
Interlending & Document Supply     Hybrid Journal   (Followers: 62)
International Information & Library Review     Hybrid Journal   (Followers: 473)
International Journal of Bibliometrics in Business and Management     Hybrid Journal   (Followers: 1)
International Journal of Business Information Systems     Hybrid Journal   (Followers: 17)
International Journal of Cooperative Information Systems     Hybrid Journal   (Followers: 8)
International Journal of Digital Curation     Open Access   (Followers: 150)
International Journal of Digital Library Systems     Full-text available via subscription   (Followers: 77)
International Journal of Doctoral Studies     Open Access  
International Journal of Information and Decision Sciences     Hybrid Journal   (Followers: 18)
International Journal of Information Management     Hybrid Journal   (Followers: 226)
International Journal of Information Privacy, Security and Integrity     Hybrid Journal   (Followers: 29)
International Journal of Information Retrieval Research     Full-text available via subscription   (Followers: 33)
International Journal of Information Technology, Communications and Convergence     Hybrid Journal   (Followers: 19)
International Journal of Intellectual Property Management     Hybrid Journal   (Followers: 27)
International Journal of Intercultural Information Management     Hybrid Journal   (Followers: 14)
International Journal of Legal Information     Open Access   (Followers: 190)
International Journal of Librarianship     Open Access  
International Journal of Library and Information Science     Open Access   (Followers: 230)
International Journal of Library Science     Full-text available via subscription   (Followers: 53)
International Journal of Library Science     Open Access   (Followers: 302)
International Journal of Multicriteria Decision Making     Hybrid Journal   (Followers: 11)
International Journal of Multimedia Information Retrieval     Partially Free   (Followers: 14)
International Journal of Organisational Design and Engineering     Hybrid Journal   (Followers: 6)
International Journal of Web Portals     Full-text available via subscription   (Followers: 17)
International Journal on Digital Libraries     Hybrid Journal   (Followers: 618)
Investigación Bibliotecológica     Open Access   (Followers: 9)
Issues in Informing Science and Information Technology     Open Access  
it - Information Technology     Hybrid Journal   (Followers: 18)
JISTEM : Journal of Information Systems and Technology Management     Open Access   (Followers: 11)
JLIS.it     Open Access   (Followers: 15)
JMIR Medical Informatics     Open Access   (Followers: 7)
Journal of Academic Librarianship     Hybrid Journal   (Followers: 923)
Journal of Access Services     Hybrid Journal   (Followers: 37)
Journal of Advancements in Library Sciences     Full-text available via subscription   (Followers: 33)
Journal of Archival Organization     Hybrid Journal   (Followers: 23)
Journal of Balkan Libraries Union     Open Access   (Followers: 3)
Journal of Copyright in Education & Librarianship     Open Access   (Followers: 17)
Journal of Creative Library Practice     Open Access   (Followers: 81)
Journal of Data Mining and Digital Humanities     Open Access   (Followers: 27)
Journal of Documentation     Hybrid Journal   (Followers: 183)
Journal of East Asian Libraries     Open Access   (Followers: 6)
Journal of Education in Library and Information Science - JELIS     Full-text available via subscription   (Followers: 76)
Journal of Educational Media, Memory, and Society     Full-text available via subscription   (Followers: 13)
Journal of Electronic Publishing     Open Access   (Followers: 136)
Journal of Electronic Resources Librarianship     Hybrid Journal   (Followers: 258)
Journal of eScience Librarianship     Open Access   (Followers: 188)
Journal of Global Information Management     Full-text available via subscription   (Followers: 13)
Journal of Health & Medical Informatics     Open Access   (Followers: 54)
Journal of Hospital Librarianship     Hybrid Journal   (Followers: 159)
Journal of Information & Knowledge Management     Hybrid Journal   (Followers: 187)
Journal of Information and Data Management     Open Access   (Followers: 2)
Journal of Information Engineering and Applications     Open Access   (Followers: 15)
Journal of Information Literacy     Open Access   (Followers: 713)
Journal of Information Science     Hybrid Journal   (Followers: 948)
Journal of Information Systems     Full-text available via subscription   (Followers: 22)
Journal of Information Technology     Hybrid Journal   (Followers: 56)
Journal of Information Technology Education : Innovations in Practice     Open Access   (Followers: 1)

        1 2 | Last

Journal Cover International Journal of Cooperative Information Systems
  [SJR: 0.297]   [H-I: 38]   [8 followers]  Follow
    
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 0218-8430 - ISSN (Online) 1793-6365
   Published by World Scientific Homepage  [118 journals]
  • Dynamic Service Provisioning and Selection for Satisfying Cloud
           Applications and Cloud Providers in Hybrid Cloud
    • Authors: Xu Lijun, Li Chunlin
      Abstract: International Journal of Cooperative Information Systems, Ahead of Print.
      The paper presents a hybrid cloud service provisioning and selection optimization scheme, and proposes a hybrid cloud model which consists of hybrid cloud users, private cloud and public cloud. This scheme aims to effectively provide cloud service and allocate cloud resources, such that the system utility can be maximized subject to public cloud resource constraints and hybrid cloud users constraints. The paper makes use of a utility-driven approach to solve interaction among private cloud user, hybrid cloud service provider and public cloud provider in hybrid cloud environment. The paper presents hybrid cloud service provisioning and selection algorithm in hybrid cloud. The hybrid cloud market consists of hybrid cloud user agent, hybrid cloud service agent and hybrid cloud agent, which represent the interests of different roles. The experiments are designed to compare the performance of proposed algorithm with the other related work.
      Citation: International Journal of Cooperative Information Systems
      PubDate: 2017-10-19T02:50:14Z
      DOI: 10.1142/S0218843017500058
       
  • Enterprise Architecture: What Did We Study'
    • Authors: Svyatoslav Kotusev
      Abstract: International Journal of Cooperative Information Systems, Ahead of Print.
      Enterprise architecture (EA) is a description of an enterprise from an integrated business and IT perspective intended to improve business and IT alignment, and is used in the majority of large companies. However, despite that EA was established as an independent discipline long ago, a commonly accepted “big picture” in EA research is still missing. As a result, the scope of the EA discipline is vague, the extent of diversity in EA publications is poorly understood and the progression of the EA research stream over time is unclear. In this paper I conduct a comprehensive EA literature review covering 1075 publications aiming to structure, clarify and consolidate the whole EA research stream. I analyze the distribution of the EA research stream by time, source, research methodology and attitude, code all the issues discussed in EA publications into 42 narrow EA-related topics and 11 broader themes, establish the conceptual relationship between them and present a picture of the EA discipline “on a page”. Moreover, I classify all EA-related topics into four categories according to their lifecycles helping future EA researchers to better understand the evolution of the EA discipline and make the maximum contribution to it.
      Citation: International Journal of Cooperative Information Systems
      PubDate: 2017-09-26T03:29:33Z
      DOI: 10.1142/S0218843017300029
       
  • An Auto-Scaling Framework for Heterogeneous Hadoop Systems
    • Authors: J. V. Bibal Benifa, D. Dejey
      Abstract: International Journal of Cooperative Information Systems, Ahead of Print.
      The scalability of the cloud infrastructure is essential to perform large-scale data processing using MapReduce programming model by automatically provisioning and de-provisioning the resources on demand. The existing MapReduce model shows performance degradation while getting adapted to heterogeneous environments since sufficient techniques are not available to scale the resources on demand and the scheduling algorithms would not cooperate as the resources are configured dynamically. An Auto-Scaling Framework (ASF) is presented in this article to configure the resources automatically based on the current system load in a heterogeneous Hadoop environment. The scheduling of data and task is done in a data-local manner that adapts while new resources are configured, or the existing resources are removed. A monitoring module is integrated with the JobTracker to observe the status of physical machines, compute the system load and provide automated provisioning of the resources. Then, Replica Tracker is utilized to track the replica objects for efficient scheduling of the task in the physical machines. The experiments are conducted in a commercial cloud environment using diverse workload characteristics, and the observations show that the proposed framework outperforms the existing scheduling mechanisms by the performance metrics such as average completion time, scheduling time, data locality, resource utilization and throughput.
      Citation: International Journal of Cooperative Information Systems
      PubDate: 2017-09-05T01:29:57Z
      DOI: 10.1142/S0218843017500046
       
  • Multi-Factor Synthesis Decision-Making for Trust-Based Access Control on
           Cloud
    • Authors: Khaled Riad, Zhu Yan
      Abstract: International Journal of Cooperative Information Systems, Ahead of Print.
      Providing a creditable basis for access control decision-making is not an easy task for the resource pooling, dynamic, and multi-tenant cloud environment. The trust notation can provide this creditable basis, based on multiple factors that can accurately compute the user’s trust for the granting access entity. In this paper, the formal trust model has been introduced, which presents a novel method to provide the basis for granting access. It is based on three factors and their semantic relations, which investigate important measures for the cloud environment. Also, a new Trust-Based Access Control (TB-AC) model has been proposed. The proposed model supports dynamically changing the user’s assigned permissions based on its trust level. In addition, TB-AC ensures secure resource sharing among potential untrusted tenants. TB-AC has been deployed on a separated VM in our private cloud environment, which is built using OpenStack. The experimental results indicated that TB-AC can evaluate access requests within reasonable and acceptable processing times, which is based on the final trust level calculation and the communication between TB-AC and some of the intended OpenStack services. By considering very rough conditions and huge traffic overhead, the final trust level can be calculated in an average time of 200[math]ms. Furthermore, the communication overhead between TB-AC and each of Keystone, Nova, and Neutron is very light. Finally, TB-AC has been tested under different scenarios and is provable, usable and scalable.
      Citation: International Journal of Cooperative Information Systems
      PubDate: 2017-07-25T08:12:26Z
      DOI: 10.1142/S0218843017500034
       
  • Erratum: An Efficient Particle Swarm Optimization for Large-Scale
           Hardware/Software Co-Design System
    • Authors: Xiaohu Yan, Fazhi He, Neng Hou, Haojun Ai
      Abstract: International Journal of Cooperative Information Systems, Ahead of Print.

      Citation: International Journal of Cooperative Information Systems
      PubDate: 2017-07-19T06:32:48Z
      DOI: 10.1142/S0218843017920010
       
  • An Approach to Modeling and Analyzing Human-Centric Systems and Its
           Application
    • Authors: Dongdong An, Jing Liu
      Abstract: International Journal of Cooperative Information Systems, Ahead of Print.
      Human-centric design is based on the psychological and physical needs of the human users. Model-driven engineering provides formal model to be analyzed. How to combine formal model with human-centric design methodology is a crucial issue and yet it has not been settled. In fact, the difficulty of this problem is lacking of formal representations of the human-centric property. The intention of our research is to provide some new approaches to effectively model and analyze the human-centric system. So we proposed model-based methodologies for modeling and analyzing the human-centric system, which aim to use hierarchical model framework to effectively build systems. This paper mainly addresses two issues. The first one is the modeling of human-centric system by the hierarchical model framework. Then we selected the automatic train control braking system as the application to build hierarchical model based on five corresponding sub-models and provide the new braking modes and new braking strategies.
      Citation: International Journal of Cooperative Information Systems
      PubDate: 2017-07-03T08:29:49Z
      DOI: 10.1142/S0218843017410052
       
  • A Method to Review Expert Recommendation Using Topic Relevance and Expert
           Relationship
    • Authors: Shengxiang Gao, Zhengtao Yu, Linbin Shi, Xin Yan, Haixia Song
      Abstract: International Journal of Cooperative Information Systems, Ahead of Print.
      In the process of recommending review experts to projects, in order to effectively make use of the relevance among topics and the relationship among experts, a new method is proposed for review expert recommendation using topic relevance and expert relationship. In this method, firstly, the relevance among topics and the relationships among experts are used to respectively construct the Markov network of topics and the Markov network of experts. Next, the maximum topic clique is extracted from the topic Markov network and the maximum expert clique is extracted from the expert Markov network; then, with the information of the two maximum cliques, the relevance between experts and projects is calculated. After that, according to the descending order of the relevant degree, the candidates are ranked. Finally, the experts, who are the top N to projects, are recommended. The experiments on five domain datasets are made and the results show that the proposed method can improve the effect of review expert recommendation, and the F-value increases by an average of 5% than without considering the relevance among topics and the relationship among experts.
      Citation: International Journal of Cooperative Information Systems
      PubDate: 2017-05-29T03:24:55Z
      DOI: 10.1142/S0218843017410040
       
  • An Efficient Optimization Approach for Top-[math] Queries on Uncertain
           Data
    • Authors: Zhiqiang Zhang, Xiaoyan Wei, Xiaoqin Xie, Haiwei Pan, Yu Miao
      Abstract: International Journal of Cooperative Information Systems, Ahead of Print.
      Uncertain data is inherent in various important applications and Top-[math] query on uncertain data is an important query type for many applications. To tackle the performance issue of evaluating Top-[math] query on uncertain data, an efficient optimization approach was proposed in this paper. This method can anticipate the tuples most likely to become Top-[math] result based on dominant relationship analysis, greatly reducing the amount of data in query processing. When the database is updated, this method could determine whether the change affects the current query result, and help us to avoid unnecessary re-query. The experimental results prove the feasibility and effectiveness of this method.
      Citation: International Journal of Cooperative Information Systems
      PubDate: 2017-05-24T09:29:05Z
      DOI: 10.1142/S0218843017410027
       
  • A Social-Based DTN Routing in Cooperative Vehicular Sensor Networks
    • Authors: Tong Wang, Yongzhe Zhou, Xibo Wang, Yue Cao
      Abstract: International Journal of Cooperative Information Systems, Ahead of Print.
      As a cooperative information system, vehicles in Vehicular Sensor Networks deliver messages based on collaboration. Due to the high speed of vehicles, the topology of the network is highly dynamic, and the network may be disconnected frequently. So how to transfer large files in such network is worth considering. The encountering nodes which never meet before flood messages blindly cause tremendous network overhead. We address this challenge by introducing the Encounter Utility Rank Router (EURR) based on social metrics. EURR includes three cases: Utility Replication Strategy, Lifetime Replication Strategy and SocialRank Replication Strategy. The Lifetime Replication is promising and complements Utility Replication. It enhances the delivery ratio by relaying the copy via the remaining lifetime. Considering the network overhead, the SocialRank Replication replicates a copy according to the SocialRank when two communicating nodes have not met before. The routing mechanism explores the utility of history encounter information and social opportunistic forwarding. The results under the scenario show an advantage of the proposed EURR over the compared algorithms in terms of delivery ratio, average delivery latency and overhead ratio.
      Citation: International Journal of Cooperative Information Systems
      PubDate: 2017-05-18T07:03:55Z
      DOI: 10.1142/S0218843017410039
       
  • LSSTCS: An Efficient Particle Swarm Optimization for Large-Scale
           Hardware/Software Co-Design System
    • Authors: Xiaohu Yan, Fazhi He, Neng Hou, Haojun Ai
      Abstract: International Journal of Cooperative Information Systems, Ahead of Print.
      In the co-design process of hardware/software (HW/SW) system, especially for large and complicated embedded systems, HW/SW partitioning is a challenging step. Among different heuristic approaches, particle swarm optimization (PSO) has the advantages of simple implementation and computational efficiency, which is suitable for solving large-scale problems. This paper presents a conformity particle swarm optimization with fireworks explosion operation (CPSO-FEO) to solve large-scale HW/SW partitioning. First, the proposed CPSO algorithm simulates the conformist mentality from biology research. The CPSO particles with psychological conformist always try to move toward a secure point and avoid being attacked by natural enemy. In this way, there is a greater possibility to increase population diversity and avoid local optimum in CPSO. Next, to enhance the search accuracy and solution quality, an improved FEO with new initialization strategy is presented and is combined with CPSO algorithm to search a better position for the global best position. This combination can keep both the diversified and intensified searching. At last, the experiments on benchmarks and large-scale HW/SW partitioning demonstrate the efficiency of the proposed algorithm.
      Citation: International Journal of Cooperative Information Systems
      PubDate: 2017-04-28T05:38:08Z
      DOI: 10.1142/S0218843017410015
       
  • Toward a Faster Fault Tolerant Consensus to Maintain Data Consistency in
           Collaborative Environments
    • Authors: Fouad Hanna, Lionel Droz-Bartholet, Jean-Christophe Lapayre
      Abstract: International Journal of Cooperative Information Systems, Ahead of Print.
      The consensus problem has become a key issue in the field of collaborative telemedicine systems because of the need to guarantee the consistency of shared data. In this paper, we focus on the performance of consensus algorithms. First, we studied, in the literature, the most well-known algorithms in the domain. Experiments on these algorithms allowed us to propose a new algorithm that enhances the performance of consensus in different situations. During 2014, we presented our very first initial thoughts to enhance the performance of the consensus algorithms, but the proposed solution gave very moderate results. The goal of this paper is to present a new enhanced consensus algorithm, named Fouad[math] Lionel and J.-Christophe (FLC). This new algorithm was built on the architecture of the Mostefaoui-Raynal (MR) consensus algorithm and integrates new features and some known techniques in order to enhance the performance of consensus in situations where process crashes are present in the system. The results from our experiments running on the simulation platform Neko show that the FLC algorithm gives the best performance when using a multicast network model on different scenarios: in the first scenario, where there are no process crashes nor wrong suspicion, and even in the second one, where multiple simultaneous process crashes take place in the system.
      Citation: International Journal of Cooperative Information Systems
      PubDate: 2017-04-24T02:19:04Z
      DOI: 10.1142/S0218843017500022
       
  • Conceptual Model of Enterprise Architecture Management
    • Authors: Svyatoslav Kotusev
      Abstract: International Journal of Cooperative Information Systems, Ahead of Print.
      Enterprise architecture (EA) is a description of an enterprise from an integrated business and IT perspective. Enterprise architecture management (EAM) is a management practice embracing all the management processes related to EA aiming to improve business and IT alignment. EAM is typically described as a sequential four-step process: (i) document the current state, (ii) describe the desired future state, (iii) develop the transition plan and (iv) implement the plan. This traditional four-step approach to EAM essentially defines the modern understanding of EA. Based on a literature review, this paper demonstrates that this four-step approach to EAM, though practiced by some companies, is inadequate as a model explaining the EAM phenomenon in general. As a substitute, this paper synthesizes the generic conceptual model of EAM providing a more realistic conceptualization of EAM describing it as a decentralized network of independent but interacting processes, artifacts and actors.
      Citation: International Journal of Cooperative Information Systems
      PubDate: 2017-04-17T07:51:00Z
      DOI: 10.1142/S0218843017300017
       
  • Optimal Dynamic Placement of Virtual Machines in Geographically
           Distributed Cloud Data Centers
    • Authors: Hana Teyeb, Nejib Ben Hadj-Alouane, Samir Tata, Ali Balma
      Abstract: International Journal of Cooperative Information Systems, Ahead of Print.
      In geo-distributed cloud systems, a key challenge faced by cloud providers is to optimally tune and configure the underlying cloud infrastructure. An important problem in this context, deals with finding an optimal virtual machine (VM) placement, minimizing costs, while at the same time, ensuring good system performance. Moreover, due to the fluctuations of demand and traffic patterns, it is crucial to dynamically adjust the VM placement scheme over time. It should be noted that most of the existing studies, however, dealt with this problem either by ignoring its dynamic aspect or by proposing solutions that are not suitable for a geographically distributed cloud infrastructure. In this paper, exact as well as heuristic solutions based on Integer Linear programming (ILP) formulations are proposed. Our work focuses also on the problem of scheduling the VM migration by finding the best migration sequence of intercommunicating VMs that minimizes the resulting traffic on the backbone network. The proposed algorithms execute within a reasonable time frame to readjust VM placement scheme according to the perceived demand. Our aim is to use VM migration as a tool for dynamically adjusting the VM placement scheme while minimizing the network traffic generated by VM communication and migration. Finally, we demonstrate the effectiveness of our proposed algorithms by performing extensive experiments and simulation.
      Citation: International Journal of Cooperative Information Systems
      PubDate: 2017-04-04T07:17:15Z
      DOI: 10.1142/S0218843017500010
       
 
 
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