• Title, Summary, Keyword: CALM agent

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Implementation of an Efficient Service Discovery Protocol for Directory Facilitator Based on CALM Agent (CLAM 에이전트 기반 Directory Facilitator를 위한 효율적인 서비스 디스커버리 프로토콜 구현)

  • Lee, Seung-Hyun;Shin, Dong-Ryeol;Jang, Kyung-Soo
    • The Journal of The Institute of Internet, Broadcasting and Communication
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    • v.11 no.6
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    • pp.275-282
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    • 2011
  • Current service discovery protocols such as UPnP, Jini, SLP provide the basic function which is message exchange pattern, service representation and description, in service discovery. They does not guarantee service interoperability among service discovery. Therefore, in this paper, we design and implement CLAM (Component-based Autonomic Layered Middleware) agent platform to enable an efficient service discovery through extension of DF agent function in FIPA-compliant specification. Also, we propose an efficient service discovery mechanism using DHT-Chord algorithm to guarantee scalability and interoperability in DF agent.

Design of CALM-based Service Discovery System (CALM 기반의 서비스 디스커버리 시스템 설계)

  • Lee, Geon-Ha;Lee, Seung-Hyun;Choi, Kee-Hyun;Shin, Dong-Ryeol
    • Proceedings of the IEEK Conference
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    • pp.631-632
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    • 2008
  • In this paper, we propose service discovery mechanism, using CALM agent platform to guarantee scalability of scope of available services without modifying existing service discovery protocols. The proposed service discovery mechanism provides users with a wider selection of services, and convenient search methods.

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Compact AUV platform system designed for the experiment of underwater multi-agent development

  • Watanabe, Keisuke
    • 제어로봇시스템학회:학술대회논문집
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    • pp.2036-2041
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    • 2005
  • The underwater multi-agent technology has many potential for the various activities related to ocean development/conservation in the near future. For example, in such fields as water pollution investigation, aquaculture control, or coral reef research, we feel a growing need for a system that realizes underwater continuous monitoring in the wide rang e. In this case, the target monitoring area will be sliced planar hierarchically toward the depth as monitoring layers, and many AUVs arranged on each layer track the given trajectory and gather various environmental information continuously, with communicating each other in the layer or with other layers. To realize those systems we need to develop AUV multi-agent technologies. So we are now building basic systems for basin experiment for the development of AUV multi-agent behavior. We must experience many situations and problems to be solved for the development of its elemental technologies by using real systems as well as our computer simulations. In this paper we introduce our concept of the experiment in the near future and the hardware/software design of our two types of handy AUVs and ultrasound ranging/communication system for that experiment. One AUV is designed using a 17inches-diameter glass sphere with DOS/V and RT-Linux based subsystems, which is intended to use not only in the basin but also in the calm real sea. The other AUV is designed for the basin experiment using a 7inches-diameter acrylic sphere with low-cost embedded system with SH-2 based subsystems. The basin experiment to verify the basic AUV facilities and ultrasound ranging for position detection was carried out.

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An Intertextual Approach to Narcissa Benbow in Sanctuary, Sartoris and "There Was a Queen" (나시서 벤보우에 관한 상호텍스트적 연구)

  • Shin, Young-Hun;Kang, Ji-Hyun
    • The Journal of the Korea Contents Association
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    • v.20 no.2
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    • pp.300-309
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    • 2020
  • Recent studies on William Faulkner's female characters have overcome much of the stereotyped and dichotomous approaches of the past by uncovering their subversive characteristics. Nevertheless, they still present some limitations in regards to analyzing the characters based on individual texts. This paper attempts an inter-textual approach to Narcissa Benbow, the central character of Sanctuary, Sartoris and "There Was a Queen." In Sanctuary, Narcissa, a young widow of a Southern aristocratic family, harshly accuses her brother Horace, a lawyer of taking a murder suspect's wife and her infant child to their old house. She is afraid that their existence could harm the reputation of her family and herself. Eventually, she kicks them out of the house. In contrast, she is described as being friendly and calm in Sartoris. In addition, in "There Was a Queen," Narcissa makes an attempt to get an obscene letter back from an FBI agent in exchange for a sexual favor in order to prevent the letter from being disclosed. This paper takes into account the possibility of seeing these incoherent or even contradictory aspects of her characterization with a consistent view. This confirms that an inter-textual approach is needed to properly understand those round female characters created by Faulkner.