The 8th COE Postdoctoral and Doctoral Researchers
Technical Presentation

Date: Thursday, Nov. 25, 2004
Time: 13:30 - 14:30
Place: L1 Lecture room
Language: English (oral presentation), English/Japanese (question)
Chairperson: Atsushi FUJITA (Computational Linguistics Lab. : D3),
Muneyuki SAKATA (Image Processing Lab. : D2)

Program (20 mins each: 15 mins presentation and 5 mins discussion)

  1. "CPG-based rhythmic manipulation for a multi-fingered hand"
    栗田 雄一 (ロボティクス講座 : D3)
    Yuichi KURITA (Robotics Lab. : D3)

    [Abstract]
    Human can efficiently grasp and dextrously manipulate various objects using their fingers cooperatively. When they attain proficiency in the rotaing manipulation of a cylindrical object, their fingers are rhythmically controlled. CPG-based manipulation is effective to apply in such rhythmic motion. In this paper, the control method that can adaptively change the switching cycle of the grasping fingers according to the object size is proposed. The experimental results using the multi-fingered hand system suggest the efficiency of the CPG-based manipulation using the proposed method.
    Top

  2. "Implementing Integrated Services of Networked Home Appliances Using Service Oriented Architecture"
    井垣 宏 (ソフトウェア工学講座 : D3)
    Hiroshi IGAKI (Software Engineering Lab. : D3)

    [Abstract]
    This paper presents a method to implement integrated services of networked home electric appliances, which provide more convenient and comfortable living for home users. The conventional methods generally employ a home server to achieve the integrated services. The server controls all the networked appliances in a centralized manner. However, as the number of sophisticated appliances increases, the centralized server suffers from the concentration of load, as well as a decline in the reliability and interoperability. To cope with this problem, we adopt the service-oriented architecture (SOA) for the implementation of the integrated services. In the proposed framework, the appliances export own features as services, and autonomously execute the exported services one another. Thus, the appliances are loosely coupled via the exported services without any centralized home server, which enables more flexible, balanced and reliable integrated services. We first present a framework to design and implement the integrated services based on SOA, and then illustrate a prototype system developed with Web services. We also define three kinds of metrics (i.e., reliability, workload, and coupling), and conduct a comparative evaluation between the proposed and the previous systems.
    Top

  3. "Automatic Extraction of Attribute Relations from Text"
    高橋 哲朗 (自然言語処理学講座 : D3)
    Tetsuro TAKAHASHI (Computational Linguistics Lab. : D3)

    [Abstract]
    We proposed an algorithm to extract triplets of attribute-value relations (Object, Attribute, Value) from text for the purpose of building a knowledge base for question answering. In our approach, the system first extracts triplets using abstracted surface language patterns, and then use a statistical model to filter out implausible ones. Our experiment showed that the method performed well in both recall and precision.
    Top

NAIST Graduate School of Information Science 21st Century COE Program