Faculty Profiles - ISHIKAWA, Yoshiharu

Papers - ISHIKAWA, Yoshiharu

Division display 101 - 120 of about 320 ／ All the affair displays >>

オントロジーを利用したイベント処理システムの提案

高橋正和, 簗井美咲, 稲葉鉄平, 石川佳治

情報処理学会第76回全国大会講演論文集 page： 5N-1 2014.3

LBSNオントロジーの設計

簗井美咲, 高橋正和, 稲葉鉄平, 石川佳治

情報処理学会第76回全国大会講演論文集 page： 5N-3 2014.3

参加型センシングにおけるプライバシー保護手法

趙セイ, 董テイテイ, 石川佳治

情報処理学会第76回全国大会講演論文集 page： 5N-7 2014.3

Efficient Processing of Graph Similarity Queries with Edit Distance Constraints Reviewed

Xiang Zhao, Chuan Xiao, Xuemin Lin, Wei Wang, Yoshiharu Ishikawa

The VLDB Journal Vol. 22 ( 6 ) page： 727-752 2014.2

Probabilistic Range Querying over Gaussian Objects Reviewed

Tingting Dong, Chuan Xiao, Yoshiharu Ishikawa

IEICE Transactions on Information Systems (accepted for publication) Vol. E97-D ( 4 ) page： 694-704 2014.4

Language：English Publishing type：Research paper (scientific journal)

Probabilistic range query is an important type of query in the area of uncertain data management. A probabilistic range query returns all the data objects within a specific range from the query object with a probability no less than a given threshold. In this paper, we assume that each uncertain object stored in the database is associated with a multi-dimensional Gaussian distribution, which describes the probability distribution that the object appears in the multi-dimensional space. A query object is either a certain object or an uncertain object modeled by a Gaussian distribution. We propose several filtering techniques and an R-tree-based index to efficiently support probabilistic range queries over Gaussian objects. Extensive experiments on real data demonstrate the efficiency of our proposed approach.

DOI： 10.1587/transinf.E97.D.694

Research Trend and Future Prospects for Large-Scale Data Analytics Invited Reviewed

Yoshiharu Ishikawa

IEICE Transactions on Information and Vol. J97-D ( 4 ) page： 718-728 2014.4

Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)

Facing the age of big data, data analytics, in which sophisticated analysis is performed on large amouts of data, is the focus on attention. In this paper, we survey the current trend of research and development of data analytics and describe the future prospects. First, we classify various approaches for data analytics and then explain how DBMSs are extended for data analytics. Moreover, we describe how machine learning facilities are incoporated in DBMSs and how DBMSs are used as simulation engines. Then, we compare parallel DBMSs and MapReduce from the viewpoint of data analytics and mention system architecture issues. Finally, we present some interesting extentions of MapReduce for data analytics and then present the outlook for the future.

Monitoring Query Processing in Mobile Robot Databases Reviewed

Kento Sugiura, Arata Hayashi, Tingting Dong, Yoshiharu Ishikawa

Proceedings of the Third International Workshop on Spatial Information Modeling, Management and Mining (SIM3 2014) page： 271-282 2014.4

Wikipediaにおける単語の順序を考慮した編集の差し戻し検知手法

近藤弘隆，中村晃，鈴木優，石川佳治

情報処理学会研究報告 Vol. 2014-DBS-159 ( 2 ) page： 7-12 2014.8

確率的データストリームにおけるパターン問合せのグループ化

杉浦健人，石川佳治，佐々木勇和

情報処理学会研究報告 Vol. 2014-DBS-159 ( 20 ) page： 113-118 2014.8

行動オントロジによるセンサデータからの複合イベント検出について

佐々木勇和，簗井美咲，高橋正和，杉浦健人，石川佳治

第13回情報科学技術フォーラム（FIT 2014）講演論文集 page： D-031 2014.9

参加型センシングのための空間データベース問合せ処理

趙セイ，杉浦健人，姜仁河，佐々木勇和，石川佳治

第13回情報科学技術フォーラム（FIT 2014）講演論文集 page： D-033 2014.9

LBSNオントロジの構築

簗井美咲，高橋正和，佐々木勇和，石川佳治

第13回情報科学技術フォーラム（FIT 2014）講演論文集 page： D-042 2014.9

RDFストリーム上での複合イベント検出

高橋正和，簗井美咲，佐々木勇和，石川佳治

第13回情報科学技術フォーラム（FIT 2014）講演論文集 page： D-044 2014.9

A Slide Element Retrieval Method for Presentation Reuse

Jie Zhang, Chuan Xiao, Toyohide Watanabe, Yoshiharu Ishikawa

電子情報通信学会技術研究報告 Vol. 114 ( 204 ) page： 69-74 2014.9

Content-Based Element Search for Presentation Slide Reuse Reviewed

Jie Zhang, Chuan Xiao, Toyohide Watanabe, Yoshiharu Ishikawa

IEICE Transactions on Information and Systems Vol. 97-D ( 10 ) page： 2685-2696 2014.10

Language：English Publishing type：Research paper (scientific journal)

Presentation slide composition is an important job for knowledge workers. Instead of starting from scratch, users tend to make new presentation slides by reusing existing ones. A primary challenge in slide reuse is to select desired materials from a collection of existing slides. The state-of-the-art solution utilizes texts and images in slides as well as file names to help users to retrieve the materials they want. However, it only allows users to choose an entire slide as a query but does not support the search for a single element such as a few keywords, a sentence, an image, or a diagram. In this paper, we investigate content-based search for a variety of elements in presentation slides. Users may freely choose a slide element as a query. We propose different query processing methods to deal with various types of queries and improve the search efficiency. A system with a user-friendly interface is designed, based on which experiments are performed to evaluate the effectiveness and the efficiency of the proposed methods.

DOI： 10.1587/transinf.2014EDP7023

Managing Presentation Slides with Reused Elements Reviewed

Jie Zhang, Chuan Xiao, Sheng Hu, Toyohide Watanabe, Yoshiharu Ishikawa

Proceedings of the 6th International Conference on Computer Technology and Development (ICCTD 2014) page： ? 2014.11

Language：English

Slide presentations have become a ubiquitous tool for business and educational purposes. Instead of starting from scratch, slide composers tend to make new presentation slides by reusing materials from existing slides. Understanding how slide elements are copied from one presentation file to another and how presentation files are related to each other are difficult tasks.
In this paper, we investigate the management of multiple presentation files based on reused slide elements.We develop techniques to detect text and images that have been reused across multiple presentation files. Interactive visualization methods are proposed to facilitate understanding the process by which these elements are reused and the relationship between the files that use them. A system with a user-friendly interface is designed, based on which experiments are performed to evaluate the effectiveness of the proposed methods.

Detecting Reused Elements in Presentation Slides Reviewed

Jie Zhang, Chuan Xiao, Toyohide Watanabe, Yoshiharu Ishikawa

Proceedings of 2014 International Conference on Computer Engineering (ICOCE 2014) page： ? 2014.11

Language：English

Slide presentations have become a ubiquitous tool for business and educational purposes. Instead of starting from scratch, slide composers tend to make new presentation slides by browsing existing slides and reusing materials from them. In this paper, we investigate the problem of reused element detection in presentation slides. We develop respective techniques to identify both textual and visual elements that have been reused across multiple presentation files. Experiments are performed to evaluate the effectiveness of the proposed methods.

意味的な複合イベント処理を可能とするイベントベースについて

石川佳治，佐々木勇和，簗井美咲，高橋正和，杉浦健人

情報処理学会研究報告 page： ? 2014.11

確率的データストリームにおけるパターン照合結果のグループ化

杉浦健人, 佐々木勇和, 石川佳治

第7回データ工学と情報マネジメントに関するフォーラム（DEIM 2015）論文集 page： B3-3 2015.3

共同編集コンテンツにおける編集者関係グラフに基づいた編集者の質予測

中村晃, 鈴木優, 石川佳治

第7回データ工学と情報マネジメントに関するフォーラム（DEIM 2015）論文集 page： D4-3 2015.3

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Papers - ISHIKAWA, Yoshiharu