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浅田 稔
原稿種別: 巻頭言
2000 年 15 巻 1 号 p.
1
発行日: 2000/01/01
公開日: 2020/09/29
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阿久津 達也, 麻生川 稔, 小長谷 明彦
原稿種別: カバー記事
2000 年 15 巻 1 号 p.
2
発行日: 2000/01/01
公開日: 2020/09/29
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阿久津 達也, 麻生川 稔, 小長谷 明彦
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
3-10
発行日: 2000/01/01
公開日: 2020/09/29
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北野 宏明
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
11-20
発行日: 2000/01/01
公開日: 2020/09/29
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冨田 勝, 橋本 健太, 高橋 恒一, 松崎 由理, 松嶋 亮, 柚木 克之, 三由 文彦, 齋藤 裕介, 中山 洋一
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
21-26
発行日: 2000/01/01
公開日: 2020/09/29
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秋山 泰
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
27-34
発行日: 2000/01/01
公開日: 2020/09/29
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浅井 潔
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
35-42
発行日: 2000/01/01
公開日: 2020/09/29
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萩谷 昌己
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
43-50
発行日: 2000/01/01
公開日: 2020/09/29
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小原 雄治
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
51-55
発行日: 2000/01/01
公開日: 2020/09/29
解説誌・一般情報誌
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寺野 隆雄
原稿種別: カバー記事
2000 年 15 巻 1 号 p.
56
発行日: 2000/01/01
公開日: 2020/09/29
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大澤 幸生
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
57-60
発行日: 2000/01/01
公開日: 2020/09/29
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Focusing on areas with the highest risk of future earthquakes is important, especially if the technique is simple enough to be adopted to existing electronic data bases. By trenching survey, i.e., digging the land surface for observing underground evidences of past earthquakes, we can approximately estimate long we have before the next earthquake - an inefficient and expensive approach. An intelligent data-mining for focusing attention to risky active faults will help in achieving a less expensive and more efficient predictions of earthquakes. From the viewpoint of artificial intelligence, this is an essential challenge of having a simple computing algorithm for solving a complex problem as estimating the risks at faults.
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藤本 和則, 賀沢 秀人, 佐藤 浩史, 阿部 明典, 松澤 和光
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
61-64
発行日: 2000/01/01
公開日: 2020/09/29
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Decision Support for Internet Users, Called DSIU, is an area of research for providing decision support for Internet users by using information on the Internet. DSIU aims to provide decision support with logicalexplanation taking account of user's preference. By using information extraction techniques, DSIU handles the names of various substances, e.g., electronic products, persons, and places, and so on, and constructs the explanations in terms of their properties. This paper describes the DSIU particularly form a viewpoint of realizing the DSIU and giving contributions to society in the near future. The information of DSIU is available at http://www.kecl.ntt.co.jo/DSIU/.
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平松 薫
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
65-68
発行日: 2000/01/01
公開日: 2020/09/29
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The purpose of this research is to integrate WWW information and sensory data into a Digital City. The key parts of our project are geographical homepage link (GeoLink) database, WWW map interfaces using city metaphor and information retrieving based on real time sensory data. Our project goal are to create a new information space which changes dynamically and continuously and to support community networking.
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畦地 真太郎, 藤原 伸彦, 角 薫, 平田 高志, 矢野 博之, 西田 豊明
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
69-73
発行日: 2000/01/01
公開日: 2020/09/29
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We propose novel communication medium, a public opinion channel (POC). Its main function is to exchange and to share opinions in a community. It gathers messages from community members, integrates them into a meaningful story, and broadcasts the story to community members. Because the story is summarized, community members can avoid perceiving extreme amount of information. It aids community members so survey opinions in a community and to make a public discussion. Community members send new information about the story to POC again. By this process, information circulates through the community. The POC can be regarded as the next challenge in information and communication technologies. Three issues are discussed: 1) Does the POC facilitate communication in the community? 2) How does it compose stories based on messages from community members? 3) What social effects does it produce?
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寺野 隆雄
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
74-77
発行日: 2000/01/01
公開日: 2020/09/29
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The performance of recent smart IC cards is equal to the one of micro-computer kits about twenty years ago. Using the functions of smart IC cards, this paper proposes yet another mobile computing system for community computing, which aims at supporting personal information management, information service, and dynamic collaborative filtering. The main features of the system are (1) the agents, or fairies in a card are small, cheap, and easy-to-use; (2) they are fully distributed among ubiquitous computing environments with and/or without computer networks; and (3) holder-centered information controlling mechanisms. The application candidates include travel navigation, collaborative education, and electronic commerce. This paper discusses the system architecture, feasibility of applications, and future issues.
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新田 克己
原稿種別: カバー記事
2000 年 15 巻 1 号 p.
78
発行日: 2000/01/01
公開日: 2020/09/29
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角田 篤泰
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
79
発行日: 2000/01/01
公開日: 2020/09/29
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呉 甲錫
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
80
発行日: 2000/01/01
公開日: 2020/09/29
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石 岩
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
81
発行日: 2000/01/01
公開日: 2020/09/29
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兪 文偉
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
82
発行日: 2000/01/01
公開日: 2020/09/29
解説誌・一般情報誌
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寺尾 敦
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
83
発行日: 2000/01/01
公開日: 2020/09/29
解説誌・一般情報誌
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張 暁龍
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
84
発行日: 2000/01/01
公開日: 2020/09/29
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佐野 彰
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
85
発行日: 2000/01/01
公開日: 2020/09/29
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吉井 伸一郎
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
86
発行日: 2000/01/01
公開日: 2020/09/29
解説誌・一般情報誌
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大崎 美穂
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
87
発行日: 2000/01/01
公開日: 2020/09/29
解説誌・一般情報誌
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蜷川 繁
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
88
発行日: 2000/01/01
公開日: 2020/09/29
解説誌・一般情報誌
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荒井 幸代
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
89
発行日: 2000/01/01
公開日: 2020/09/29
解説誌・一般情報誌
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高間 康史
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
90
発行日: 2000/01/01
公開日: 2020/09/29
解説誌・一般情報誌
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角 薫
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
91
発行日: 2000/01/01
公開日: 2020/09/29
解説誌・一般情報誌
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藤田 邦彦
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
92
発行日: 2000/01/01
公開日: 2020/09/29
解説誌・一般情報誌
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前田 茂則
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
93
発行日: 2000/01/01
公開日: 2020/09/29
解説誌・一般情報誌
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椋木 雅之
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
94
発行日: 2000/01/01
公開日: 2020/09/29
解説誌・一般情報誌
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岩爪 道昭
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
95
発行日: 2000/01/01
公開日: 2020/09/29
解説誌・一般情報誌
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前田 晴美
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
96
発行日: 2000/01/01
公開日: 2020/09/29
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工藤 隆司
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
97
発行日: 2000/01/01
公開日: 2020/09/29
解説誌・一般情報誌
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上市 秀雄
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
98
発行日: 2000/01/01
公開日: 2020/09/29
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竹内 孔一
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
99
発行日: 2000/01/01
公開日: 2020/09/29
解説誌・一般情報誌
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松原 茂樹
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
100
発行日: 2000/01/01
公開日: 2020/09/29
解説誌・一般情報誌
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白井 清昭
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
101
発行日: 2000/01/01
公開日: 2020/09/29
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Kang-Hyun Jo
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
102
発行日: 2000/01/01
公開日: 2020/09/29
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林 健太郎
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
103
発行日: 2000/01/01
公開日: 2020/09/29
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榊原 利彦
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
104
発行日: 2000/01/01
公開日: 2020/09/29
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前 泰志
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
105
発行日: 2000/01/01
公開日: 2020/09/29
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文 仁赫
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
106
発行日: 2000/01/01
公開日: 2020/09/29
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中山 收文
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
107
発行日: 2000/01/01
公開日: 2020/09/29
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堀 貴明
原稿種別: 会誌特集
2000 年 15 巻 1 号 p.
108
発行日: 2000/01/01
公開日: 2020/09/29
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梶山 民人, 伊藤 秀昭, 飯田 三郎, 福村 晃夫
原稿種別: 論文
2000 年 15 巻 1 号 p.
109-118
発行日: 2000/01/01
公開日: 2020/09/29
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This paper presents an overview of the TRICS system which discovers a conceptual structure of an existing relational database, and its mechanisms for eliciting the conceptual structure of the database from its relational instances. In order to represent the conceptual structure of the database, it is necessary to make conceptual objects and relationships between them clear. Conceptual objects and their relationships are obtained based on functional and inclusion dependencies. These dependences are inductively inferred by analyzing a collection of relational instances. Functional dependencies are used for making conceptual objects clear, while inclusion dependencies for relating these conceptual objects to each other. A conceptual object is specified with a relation which is in third normal form (3NF). If an existing relation is not in 3NF, the relation is decomposed into some 3NF relations. Each conceptual object is transformed into a frame. There are three types of relationships between two frames, they are is-a, is-part-of is-associated-with. A hierarchical structure of frames is constructed based on is-a links. Part-whole relationships are represented in terms of is-part-of links. And, relationships for relating associative objects are represented in is-associated-with links. By eliciting conceptual objects and their relationships, and describing them in terms of frames, a structural representation of a existing relational database is inductively obtained. It will improve the transparency and understandability of the database's structure. Such a structural representation is also useful for integrating the existing database into a knowledgebase system, since the knowledgebase system has to retain a description of the data structure of the database.
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今成 文明, 小川 均
原稿種別: 論文
2000 年 15 巻 1 号 p.
119-128
発行日: 2000/01/01
公開日: 2020/09/29
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This paper proposes a new approach to the path planning problem with dynamic change of movement time of paths. For the dynamic environmental change, we try to cope with it to modify a temporal plan dynamically without using any estimated functions. In our proposed method, firstly a temporal path plan is generated based on the initial state of the problem. Secondly, every one move to the next node, according to the observation of environmental change, the temporal plan is dynamically modified in order to reach the goal in shorter movement time, if necessary. In order to find shortcut-paths, we introduce a multi-agent model, in which agents search for them by diffusing messages to neighboring agents. Since where and whom agents send messages is determined based on the present status of the problem, modifications are executed appropriately and locally, and admissible solutions are obtained efficiently. We examine the relation between effective behavior and a variety of settings of parameters for the problem. As a result of the experiment, we show that our proposed method is more useful for the problem in which the average of delay of movement time is longer and the existence probability of delay of movement time is smaller.
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末松 伸朗, 林 朗
原稿種別: 論文
2000 年 15 巻 1 号 p.
129-136
発行日: 2000/01/01
公開日: 2020/09/29
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The methods which use ensembles of classifiers to improve accuracy in supervised learning have received much attention. Especially, much empirical and theoretical work has been made on AdaBoost. Given a base learner and a set of training examples, AdaBoost maintains of training examples and constructs and ensemble of classifiers by applying the base learner to the weighted training set iteratively while updating the weights. The empirical studies have reported that AdaBoost improves accuracy dramatically in many domains. Boosting was proposed and had been analyzed in the context of concept learning (i.e. Boolean-valued function estimation). However, many real classification problems will be intrinsically stochastic and they will not fit into the framework in which AdaBoost has been analyzed. Nevertheless, little attention has been paid for Boosting in the context of probabilistic model learning so far. In this paper, we propose an algorithm which is inspired by the Boosting to learn probabilistic of AdaBoost and our algorithm. We also investigate the relation between our algorithm and AdaBoost. It shows that our algorithm closely related to AdaBoost and they coincide under some restricted settings. These results shed light on an extension of the Boosting to the probabilistic model learning.
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原田 実, 野村 佳秀, 水野 高宏
原稿種別: 論文
2000 年 15 巻 1 号 p.
137-146
発行日: 2000/01/01
公開日: 2020/09/29
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A lot of rule-based systems are used today. Its reliability mainly depends on the correctness of the rules extracted from the expert. However, it is impossible for any expert to prepare before hand all the rules applicable to any situation. Hence, if an incorrect execution result comes out, it is usual to correct the rule base by manual operation. The purpose of this paper is to develop system THERES (THeory REvision System) which automates this correction of rules. The rule base which THERES revises is a Horn clause set described with prolog. The predicates which compose the rule base are assumed to be divided into the correct predicates (called basic predicates) which compose he rule base are assumed to be divided into the correct predicates (called basic predicates) as the target of maintenance, whose body section is described by basic predicates (single rule decidable rule base). After the rule base system is applied to a new problem, only by dividing the results into the positive cases and the negative cases and also by pointing out the new positive case which were not derived by the rule base but are thought to be correct, THERES automatically revises the rule base so as to solve this problem correctly. Concretely, THERES first finds a wrong rule. Then by using progol, THERES acquires the rules called discrimination rules, which can separate the positive cases and the negative cases covered by the wrong rule. Finally, THERES adds the body of the discrimination rule to the body of the wrong rule in the form of conjunction. Such a correction method looks like to add the unconsidered restriction to an exception to the existing rule. Therefore, it is more practical than to replace the existing rules by the rules acquired by inductive learning from the cases.
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