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    Chapter and Conference Paper

    An Auto-Encoder to Reconstruct Structure with Cryo-EM Images via Theoretically Guaranteed Isometric Latent Space, and Its Application for Automatically Computing the Conformational Pathway

    Structural analysis by cryo-electron microscopy (Cryo-EM) has become well-established in the field of structural biology. Recently, cutting-edge methods have been proposed for the purpose of reconstructing eit...

    Kimihiro Yamazaki, Yuichiro Wada in Medical Image Computing and Computer Assis… (2023)

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    Article

    Bulk-type all-solid-state batteries with mechanically prepared LiCoPO4 composite cathodes

    All-solid-state Li batteries are suitable for the application of 5 V-class cathode materials that can provide high energy densities. However, it is hard to fabricate bulk-type batteries composed of a mixture o...

    Takahiro Kozawa, Akira Kondo, Kayo Fukuyama in Journal of Solid State Electrochemistry (2019)

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    Chapter and Conference Paper

    Mining Frequent Partite Episodes with Partwise Constraints

    In this paper, we study the problem of efficiently mining frequent partite episodes that satisfy partwise constraints from an input event sequence. Through our constraints, we can extract episodes related to even...

    Takashi Katoh, Shin-ichiro Tago, Tatsuya Asai in New Frontiers in Mining Complex Patterns (2014)

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    Chapter and Conference Paper

    EVIS: A Fast and Scalable Episode Matching Engine for Massively Parallel Data Streams

    We propose a fast episode pattern matching engine EVIS that detects all occurrences in massively parallel data streams for an episode pattern, which represents a collection of event types in a given partial order...

    Shinichiro Tago, Tatsuya Asai, Takashi Katoh in Database Systems for Advanced Applications (2012)

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    Chapter and Conference Paper

    Mining Frequent k-Partite Episodes from Event Sequences

    In this paper, we introduce the class of k-partite episodes, which are time-series patterns of the form 〈A 1,...,A k〉 for sets A i (1 ≤ i ≤ k) of events meaning that, in an input event sequence, every event of A

    Takashi Katoh, Hiroki Arimura, Kouichi Hirata in New Frontiers in Artificial Intelligence (2010)

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    Chapter and Conference Paper

    A Proposal of P2P Content Retrieval System Using Access-Based Grou** Technique

    In recent years, the diversification and ubiquitousness of information is rapidly advancing due to the development of the information and communication technology. As for the usage of the information, the atte...

    Takuya Sasaki, Jun Sawamoto, Takashi Katoh in Knowledge-Based and Intelligent Informatio… (2010)

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    Chapter and Conference Paper

    A Polynomial-Delay Polynomial-Space Algorithm for Extracting Frequent Diamond Episodes from Event Sequences

    In this paper, we study the problem of mining frequent diamond episodes efficiently from an input event sequence with sliding a window. Here, a diamond episode is of the form aEb, which means that every event...

    Takashi Katoh, Hiroki Arimura in Advances in Knowledge Discovery and Data M… (2009)

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    Chapter and Conference Paper

    A Distributed Detecting Method for SYN Flood Attacks and Its Implementation Using Mobile Agents

    In recent years, damage caused by DoS attacks is real and causing substantive problems. Such threat is widespread from major commercial sites to individual users. Therefore, it is important for network adminis...

    Masaki Narita, Takashi Katoh, Bhed Bahadur Bista in Multiagent System Technologies (2009)

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    Chapter and Conference Paper

    Mining Frequent Bipartite Episode from Event Sequences

    In this paper, first we introduce a bipartite episode of the form AB for two sets A and B of events, which means that every event of A is followed by every event of B. Then, we present an algorithm that finds a...

    Takashi Katoh, Hiroki Arimura, Kouichi Hirata in Discovery Science (2009)

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    Chapter and Conference Paper

    A Simple Characterization on Serially Constructible Episodes

    In this paper, we introduce a parallel-free episode that always has an arc between vertices with the same label and a serially constructible episode that is embedded into every parallel-free episode containing al...

    Takashi Katoh, Kouichi Hirata in Advances in Knowledge Discovery and Data Mining (2008)

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    Article

    Metastasis of the gastrointestinal tract: FDG-PET imaging

    We assess the usefulness of F-18-fluoro-deoxyglucose (FDG) positron emission tomography (PET) in the evaluation of gastrointestinal metastases. Four cases (five lesions) in which metastases from three lung can...

    Kazumasa Hayasaka, Takashi Nihashi, Toshihiro Matsuura in Annals of Nuclear Medicine (2007)

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    Chapter and Conference Paper

    Mining Frequent Diamond Episodes from Event Sequences

    In this paper, we introduce a diamond episode of the form s 1Es 2, where s 1 and s 2 are events and E is a set of events. The diamond episode s ...

    Takashi Katoh, Kouichi Hirata in Modeling Decisions for Artificial Intellig… (2007)

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    Chapter and Conference Paper

    Development and Evaluation of New User Interface for Security Scanner with Usability in Human Interface Study

    In this paper, we propose methodology for improving usability of security tools based on human interface study. Today, users in general cannot use or operate presently available security tools effectively beca...

    Michitaka Yoshimoto, Takashi Katoh, Bhed Bahadur Bista in Network-Based Information Systems (2007)

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    Chapter and Conference Paper

    Mining Sectorial Episodes from Event Sequences

    In this paper, we introduce a sectorial episode of the form Cr, where C is a set of events and r is an event. The sectorial episode Cr means that every event of C is followed by an event r. Then, by formulating...

    Takashi Katoh, Kouichi Hirata, Masateru Harao in Discovery Science (2006)

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    Chapter and Conference Paper

    Cooperative Behavior of Agents Based on Potential Field

    In non-communicative environment, it is important for agents to assess the situation prevailing in the system, especially to anticipate other agents’ intentions. In this paper, we argue in favor of cooperation...

    Takashi Katoh, Kensaku Hoshi, Norio Shiratori in Multi-Agent Systems and Applications IV (2005)

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    Chapter and Conference Paper

    Dynamic Behavior of Multiagents with Subjective Cooperative Relations

    The aim of this paper is to analyze scaling behavior of the system based on subjective cooperative relations. In our previous works, we have analyzed the efficiency of the system based on subjective cooperativ...

    Takashi Katoh, Tetsuo Kinoshita in Information Networking: Wireless Communica… (2002)

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    Chapter and Conference Paper

    An Architecture of Agent Repository for Adaptive Multiagent System

    It is important to use agents’ behavioral history in a multiagent system effectively as a way to realize advanced service organization / adjustment in order to make the multiagent system adaptable to users and...

    Takahiro Uchiya, Takashi Katoh in Information Networking: Wireless Communica… (2002)

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    Chapter and Conference Paper

    Dynamic Properties of Multiagents Based on a Mechanism of Loose Coalition

    In this paper, we propose a method of coalition formation for assigning tasks to appropriate agents to improve the efficiency of multiagent systems. To form a coalition, we introduce subjective information to age...

    Takashi Katoh, Tetsuo Kinoshita in Design and Applications of Intelligent Age… (2000)

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    Article

    Production and immunohistochemical characterization of a monoclonal antibody raised to proteoglycan purified from a human yolk sac tumour

    A large proteoglycan with chondroitin sulphate and dermatan sulphate side chains has been isolated and purified from a yolk sac tumour of the left ovary from a 23-year-old female. A monoclonal antibody, design...

    Mitsuko Sobue, Nobuo Nakashima, Toshiaki Fukatsu in The Histochemical Journal (1989)