Autonomous decentralized community concept and architecture for a complex adaptive information system

Ragab, Khaled; Ono, T.; Kaji, N.; Möri, K.

doi:10.1109/ftdcs.2003.1204288

Cited by 10 publications

(9 citation statements)

References 23 publications

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“…To evaluate the performance of our proposed technique, we consider the community network topology as random-regular graph that has been constructed by our proposed construction technique [15]. Thus, the number of the community nodes is…”

Section: Discussionmentioning

confidence: 99%

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Scalable multilateral communication technique for large-scale information systems

Ragab¹,

Kaji²,

Moriyama³

et al.

Proceedings 27th Annual International Computer Software and Applications Conference. COMPAC 2003

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Autonomous Community Information System (ACIS) is a proposition made to contend with the extreme dynamism in the large-scale information system. ACIS is a decentralized bilateral-hierarchy architecture that forms a community of individual end-users (community members) having the same interests and demands in somewhere, at specified time. It allows the community members to mutually cooperate and share information without loading up any single node excessively. In this paper, an autonomous decentralized community communication technique is proposed to assure a flexible, scalable and a multilateral communication among the community members. The main ideas behind this communication technique are: content-code communication (community service-based) for flexibility and multilateral benefits communication for scalable and productive cooperation among members. All members communicate productively for the satisfaction of all the community members. The scalability of the system's response time regardless of the number of the community members has been shown by simulation. Thus, the autonomous decentralized community communication technique reveals great results of the response time with continuous increasing in the total number of members. IntroductionThe Internet' s phenomenal impact, the subsequent growth and the evolving in social and economic environments promote more sever and complex requirements for the information service systems. Current Internet information services are provided for anyone, anywhere, anytime. These systems are constructed from the service providers (SP)' point of view. SPs provide information regardless of the end-users' demands and situations. There is no discernment between differences in place and time; end-users in any situation receive the same contents. In addition, end-users know in advance what content will satisfy their demands and then access the SP to obtain it. In a rapidly changing environment, the large-scale information systems are confronted to some challenges. First, the number of worldwide Internet and mobile users are predicted to exceed 1 billion by the end of 2005 [1]. Those users have rapidly, and dynamically changing demands and interests. Second, about 300 terabytes of information every year the world publishes on-line [2]. Constantly, new information services are added, others are modified, removed or in fault, making it more and more intractable to maintain a coherent image of the information environment. Therefore, customizing the service to the end-users is increasingly difficult, whereas end-users require well-customized, timely, continual, reliable, and available information services [3]. In addition, under the evolving situations they have heterogeneous and dynamically changing requirement levels of timeliness [4]. Timeliness is an essential component in modern high-assurance systems [5].As the end-users demands are dynamically changing, anywhere/somewhere at specified time there are significant numbers of users sharing the same interests and demands. Cons...

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Section: Discussionmentioning

confidence: 99%

“…Consequently some peers may have high load than others. In that respect, we have proposed an autonomous decentralized community construction technique for making the potential hotspots very unlikely [15]. Community network construction polices the nodes joining and leaving the community network.…”

Section: Community Network Constructionmentioning

confidence: 99%

Scalable multilateral communication technique for large-scale information systems

Ragab¹,

Kaji²,

Moriyama³

et al.

Proceedings 27th Annual International Computer Software and Applications Conference. COMPAC 2003

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“…To ride out the challenges above, we have been proposed the concept of an Autonomous Community Information System (ACIS) [9]. It customizes the information service (e.g.…”

Section: Introductionmentioning

confidence: 99%

Service-oriented autonomous decentralized community communication technique for a complex adaptive information system

Ragab

Kaji

Möri

Proceedings IEEE/WIC International Conference on Web Intelligence (WI 2003)

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In rapidly changing large-scale information system, users' requirements are changing constantly. To address the extreme dynamism in the large-scale information system, we have proposed the Autonomous Community Information System (ACIS). It is a decentralized bilateral-hierarchy architecture that forms a community of individual end-users (community members) having the same interests and demands in somewhere, at specified time. ACIS allows the community members to mutually cooperate and share information without loading up any single node excessively. In this paper, an autonomous decentralized community communication technique is proposed to assure a flexible, scalable and multilateral communication among the community members. The main ideas behind this communication technique are: content-code communication (community service-based) for flexible information service provision/utilization and multilateral benefits communication for scalable and productive cooperation among members. All members communicate productively for the satisfaction of all the community members. The scalability of the system's response time regardless of the number of the community members has been shown by simulation. Thus, the autonomous decentralized community communication technique reveals significant results of the response time with continuous increasing in the total number of members. Conventional communication techniques use the destination address (e.g. unicast address, multicast address) to send the data. In very changing environment likes ADCS, the state of the community nodes and the stability of connections are so unpredictable (i.e. end-users are frequently joined and left). Obviously, these conventional communication techniques are not applicable. Thus, the autonomous decentralized community communication technique has broached [18], to assure a productive cooperation and a flexible and timely communication among members. The main ideas behind our proposed communication technique are: content-code communication (community service-based) for flexibility and multilateral communication for timely and productive cooperation among members. Technological Com m unity Peer-Peer C onventional (client/server)all members cooperate for the satisfaction of all the community members contrary to the peer-peer (P2P) communication techniques. In P2P systems, peers cooperate for the satisfaction of only one, which request the information (unilateral benefits). The comparisons between the community information system and the conventional information systems: client/server and peer-peer are tabulated in table 1. From this table we conclude that the community communication is: service-based, cooperative, relationship and multilateral communication. As more and more users join the community, the average satisfaction rate increases and the availability gradually increases. Moreover, the system is scalable of the response time with a huge number of members. Thus, it guarantees a timely communication among the community members. have developed the b...

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“…Blending the spirit of cooperation in the social communities, and the Autonomous Decentralized System (ADS) concept [10] [11], we have proposed the concept of Autonomous Community Information System (ACIS), [4]. The basis of the ACIS concept is to provide the information to specific users in specific place at specific time.…”

Section: Conceptmentioning

confidence: 99%

“…Clearly, this approach has scalability limitations. We believe that the time has come for an Internet infrastructure for efficient real time and cooperative content delivery.The Autonomous Community Information System (ACIS) [4] has been proposed as a framework for large-scale information systems such as content delivery systems. ACIS is a decentralized architecture that forms a community of individual end-users (community members) having the same interests and demands in somewhere, at specified time.…”

mentioning

confidence: 99%

A novel hierarchical community architecture with end-to-end delay awareness for communication delay enhancement

Ragab

Kaji

Anwar

et al.

CCECE 2003 - Canadian Conference on Electrical and Computer Engineering. Toward a Caring and Humane Technology (Cat. No.03CH374

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The extreme dynamism and the rapidly changing user's requirements in current information systems promote imperative needs for the Autonomous Community Information System (ACIS) proposition. ACIS is a decentralized architecture that forms a community of individual end-users (community members) having the same interests and demands in somewhere, at specified time. It allows the community members to mutually cooperate and share information without loading up any single node excessively. In this paper, an efficient autonomous decentralized community construction technique is proposed to reduce: the communication delays among members with take into consideration the latency among them and the required time to join/leave. This technology organizes the community members into a hierarchy of sub-communities. This paper illustrates the step-step construction technique and the membership management operations for the proposed hierarchical community structure. In addition, it studies the community communication among members to quantify and study the tradeoff between the communication delay and the membership control (join/leave) overhead. IntroductionInternet services provide large, rapidly evolving, highly accessed information spaces for anyone, anywhere and anytime. They are constructed from the service providers (SP)' point of view. SPs provide information regardless of the end-users' demands and situations (e.g. location and time). There is no discernment between differences in place and time; end-users in any situation receive the same contents. The web-based publish/subscribe has two traditional models: Pull-model that requires users accesses to the SP periodically to retrieve new information and Push-model that requires SP to deliver contents that change frequently. The pull-model has the following disadvantages: First, the information users receive may be not have changed since their last access and even if it has changed, will often contain a large redundant subset of the earlier retrieval contents. Second, when a rapid and sharp surge in the volume of requests arriving at a server often results in the server being overwhelmed and response times shooting up. Flash crowds are typically triggered by events of great interest, whether planned ones such as sport events (e.g. FIFA 1998 world cup event [1]) or unplanned ones such as, terrorists attack in September, 11, 2001 overwhelmed major news sites such as MSNBC and CNN [2]. The push-model fails to take the advantage of the collaborative power of the Internet, currently, 90% of Internet resources are invisible and untapped [3]. It often uses a one-to-many model where the SP is expected to deliver contents directly to each of the users. Clearly, this approach has scalability limitations. We believe that the time has come for an Internet infrastructure for efficient real time and cooperative content delivery.The Autonomous Community Information System (ACIS) [4] has been proposed as a framework for large-scale information systems such as content delivery system...

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Autonomous decentralized community concept and architecture for a complex adaptive information system

Abstract: Abstract

Cited by 10 publications

References 23 publications

Scalable multilateral communication technique for large-scale information systems

Scalable multilateral communication technique for large-scale information systems

Service-oriented autonomous decentralized community communication technique for a complex adaptive information system

A novel hierarchical community architecture with end-to-end delay awareness for communication delay enhancement

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