Ko Fujimura

J-GLOBAL         Last updated: Jun 30, 2012 at 15:54
 
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Name
Ko Fujimura
E-mail
fujimuraotsuma.ac.jp
Affiliation
Otsuma Women's University
Section
School of Social Information Studies

Published Papers

 
Toshiyuki Sakai, Ko Fujimura
IPSJ Journal   52(12) 3806-3816   Dec 2011
This paper aims to find the techniques or goods that solve user's problems or dissatisfaction extracted in texts created by the user. We collected a large number of texts describing user experiences from blogs to extract expressions of dissatisfac...
Akihiro Miyata, Hisako Shiohara, Ko Fujimura
IPSJ Journal   52(4) 1438-1452   Apr 2011
We present a text search method which takes into account not only the reading direction but also the non-reading direction. We use this method to develop a prototype system called Kappan. It enables service providers and users to create hyperlinks...
Yutaka Kabutoya, Tomoharu Iwata, Hisako Shiohara, Ko Fujimura
3(4) 34-47   Dec 2010
We propose a new method of recommending questions to answerers so as to suit the answerers' knowledge and interests in User-Interactive Question Answering (QA) communities. A question recommender can help activation of a QA community. An effective...
FUJIMURA Ko
The Journal of the Institute of Image Electronics Engineers of Japan   39(6) 807-809   Nov 2010
MIYATA Akihiro, KAWASHIMA Harumi, FUJIMURA Ko, OKU Masahiro
The IEICE transactions on information and systems (Japanese edetion)   93(6) 756-766   Jun 2010
KURASHIMA Takeshi, FUJIMURA Ko, OKUDA Hidenori
The IEICE transactions on information and systems (Japanese edetion)   92(3) 301-310   Mar 2009
DBSJ journal   7(3) 61-66   Dec 2008
Tatsushi Matsubayashi, Takeshi Yamada, Shigeru Fujimura, Ko Fujimura
1(1) 88-101   Sep 2008
We present a new graph layout algorithm for a graph with node labels. The proposed algorithm can generate a graph layout efficiently avoiding overlapping of node labels. Most of the conventional algorithms such as force-directed and spring methods...
TODA HIROYUKI, FUJIMURA KO, INOUE TAKAFUMI, HIROSHIMA NOBUAKI, SUGIZAKI MASAYUKI, KATAOKA RYOJI, OKU MASAHIRO
48(14) 132-151   Sep 2007
Topics mentioned in blogspace are biased towards interesting/funny or entertainment-related topics compared to the generic web space and many articles contain personal opinions on goods or services. Making good use of these characteristics, we int...
DBSJ letters   5(4) 33-36   Mar 2007
TODA Hiroyuki, KITAGAWA Hiroyuki, FUJIMURA Ko, KATAOKA Ryoji, OKU Masahiro
The IEICE transactions on information and systems (Japanese edetion)   90(2) 292-310   Feb 2007
TERADA MASAYUKI, HANADATE MASAYUKI, FUJIMURA KO, SEKINE JUN
IPSJ Journal   42(8) 2017-2029   Aug 2001
This paper proposes FlexToken, a new copy prevention scheme for electronic rights such as tickets or coupons, which are circulated as pieces of paper in the real world. The important feature of this scheme is that electronic rights are represented...
FUJIMURA KOU, KURIHARA MASAHITO, KAJI IKUO
IPSJ Journal   29(10) 954-965   Oct 1988
FUJIMURA KOU, KURIHARA MASAHITO, KAJI IKUO
IPSJ Journal   28(7) 776-785   Jul 1987

Misc

 
KURASHIMA Takeshi, IWATA Tomoharu, IRIE Go, FUJIMURA Ko
IEICE technical report. Life intelligence and office information systems   111(152) 7-12   Jul 2011
We have proposed a travel route recommendation method considering the user's current location, user's spare time and user's interests. In addition to these elements, we propose a new travel route recommendation method considering the user's transp...
UCHIYAMA Toshio, EDA Takeharu, BESSHO Katsuji, FUJIMURA Ko
IEICE technical report. Data engineering   111(76) 91-96   May 2011
This paper investigates the performance of two criterion functions and four different algorithms for document clustering. The criteria, that we evaluate, are the cosine similarity criterion and the entropy-based criterion. The quality of a cluster...
ADACHI Takayuki, UCHIYAMA Toshio, FUJIMURA Ko
IEICE technical report. Data engineering   111(76) 97-102   May 2011
This paper presents a method to extract users' interests about a topic from query logs, which reflect users' interests. Users' interests are useful for market research. Since there are a number of queries, it is difficult to understand them. In th...
UCHIYAMA Toshio, EDA Takeharu, BESSHO Katsuji, FUJIMURA Ko
Technical report of IEICE. PRMU   111(77) 91-96   May 2011
This paper investigates the performance of two criterion functions and four different algorithms for document clustering. The criteria, that we evaluate, are the cosine similarity criterion and the entropy-based criterion. The quality of a cluster...
ADACHI Takayuki, UCHIYAMA Toshio, FUJIMURA Ko
Technical report of IEICE. PRMU   111(77) 97-102   May 2011
This paper presents a method to extract users' interests about a topic from query logs, which reflect users' interests. Users' interests are useful for market research. Since there are a number of queries, it is difficult to understand them. In th...
Sho Kawanaka, Akihiro Miyata, Ryuichiro Higashinaka, Takahide Hoshide, Ko Fujimura
IPSJ SIG Notes   2011(1) 1-8   May 2011
We propose a method for analyzing factors for consumer decisions. We define factors as events or conditions that provide people with the opportunity to consume products or services, and factor words as words that represent each factors abstractly....
KAWANAKA SHO, MIYATA AKIHIRO, HIGASHINAKA RYUICHIRO, HOSHIDE TAKAHIDE, FUJIMURA Ko
IEICE technical report. Life intelligence and office information systems   111(50) 1-8   May 2011
We propose a method for analyzing factors for consumer decisions. We define factors as events or conditions that provide people with the opportunity to consume products or services, and factor words as words that represent each factors abstractly....
17(0) 1-5   Jan 2011
Sho Kawanaka, Akihiro Miyata, Ryuichiro Higashinaka, Takahide Hoshide, Ko Fujimura
IPSJ SIG Notes   2010(5) 1-8   Nov 2010
We propose a method for analyzing relations between consumer decisions and factors that affect decisions. In our research, we define consumer factors as events and conditions which mainly cause consumer decisions. Our method classifies keywords in...
KURASHIMA Takeshi, IWATA Tomoharu, IRIE Go, FUJIMURA Ko
IEICE technical report. Life intelligence and office information systems   109(450) 55-60   Feb 2010
We propose a travel route recommendation method that makes use of geotags on photo sharing service. We model the behavior of the photographer to estimate the probability that the photographer will visit a landmark; our model is based on the assump...
HOSHIDE Takahide, FUJIMURA Ko, MATSUBAYASHI Tatsushi
IEICE technical report. Life intelligence and office information systems   109(450) 115-120   Feb 2010
We have proposed the visualization method "Topigraphy" for displaying large-scale tag clouds. The method use a topographical image as a background to the tag clouds so that users can grasp the relationship among tags intuitively. This paper descri...
SAKURAI Yoshinobu, FUJIMURA Ko
2009(50) 115-120   Jul 2009
SAKURAI Yoshinobu, FUJIMURA Ko
IEICE technical report. Life intelligence and office information systems   109(160) 115-120   Jul 2009
We are developing an artist recommender system that increases diversity of musical preference since it will be effective for increasing sales. This paper proposes a new entropy-based measure that scores diversity of the music preference. We introd...
IEICE technical report   109(39) 43-48   May 2009
Toshiyuki Sakai, Ko Fujimura
IPSJ SIG Notes   2009(8) 1-6   May 2009
This paper aims to find the techniques or goods that solve problems in texts created by many users. We collected a large number of texts describing user experiences to extract expressions of dissatisfaction (indicative of problems). These texts ca...
KABUTOYA Yutaka, KAWASHIMA Harumi, FUJIMURA Ko
IPSJ SIG Notes   2008(88) 247-252   Sep 2008
Recently, the question-answer (QA) site, such as Oshiete! goo or Yahoo Answers becomes more and more popular. Adamic et al. analyzed question-categories in Yahoo Answers, and they classified the categories into three clusters. The clusters are dif...
Fujimura Ko
IEICE technical report. Artificial intelligence and knowledge-based processing   108(119) 57-62   Jun 2008
BLOGRANGER TG is a new blog navigation system that provides a large-scale tag clouds interface. We use a topographical image that helps users to grasp the relationship among tags intuitively as the background to the tag clouds. The system automati...
Fujimura Ko, Fujimura Sihgeru, Matsubayashi Tatsushi, Yamada Takeshi, Okuda Hidenori
Proceedings of the IEICE General Conference   2008(1)    Mar 2008
Matsubayashi Tatsushi, Yamada Takeshi, Fujimura Shigeru, Fujimura Ko
IPSJ SIG technical reports   2007(128) 65-68   Dec 2007
We present a new graph layout algorithm for a graph with node labels. The proposed algorithm can generate a graph layout efficiently avoiding overlapping of node labels. Most of the conventional algorithms such as force-directed and spring methods...
Matsubayashi Tatsushi, Yamada Takeshi, Fujimura Shigeru, Fujimura Ko
IPSJ SIG Notes   2007(128) 65-68   Dec 2007
We present a new graph layout algorithm for a graph with node labels. The proposed algorithm can generate a graph layout efficiently avoiding overlapping of node labels. Most of the conventional algorithms such as force-directed and spring methods...
HASEGAWA Shingo, FUJIMURA Ko
IPSJ SIG Notes   2007(56) 37-42   Jun 2007
The number of mentions in blogosphere reflects activities in the real world. It is thus considered as a useful indicator of market share in some industry segments. To clarify the area in which blog mining is effective, this paper reports an invest...
HASEGAWA Shingo, FUJIMURA Ko
IEICE technical report. Office Information Systems   107(79) 37-42   May 2007
The number of mentions in blogosphere reflects activities in the real world. It is thus considered as a useful indicator of market share in some industry segments. To clarify the area in which blog mining is effective, this paper reports an invest...
FUJIMURA Shigeru, FUJIMURA Ko, KATAOKA Ryoji
IEICE technical report. Office Information Systems   105(650) 1-6   Mar 2006
This paper presents a new community extraction method based on the clusters made by co-occuring words in the query results. Relationships between these co-occurring words with query are defined by two measures. One is the Jaccard score and the oth...
Fujimura Ko, Toda Hiroyuki, Inoue Takafumi, Hiroshima Nobuaki, Kataoka Ryoji, Sugizaki Masayuki
IEICE technical report. Office Information Systems   105(650) 19-24   Mar 2006
Topics mentioned in blogspace are biased towards interesting/funny or entertainment-related topics compared to the generic web space and many articles contain personal opinions on goods or services. Making good use of these characteristics, we int...
AKANO Naoki, FUJIMURA Ko
IEICE technical report. Office Information Systems   105(650) 25-29   Mar 2006
Recently, many systems have been built on the Web2.0 model since it enables users to customize information as they like. Traditional pages are, however, unstructured and lack metadata. This means that we have to generate metadata if we want to pro...
Tanimoto Naoto, Fujimura Ko
IPSJ SIG Notes   2005(3) 37-42   Jan 2005
This paper describes a method for quantifying the degree of reputation for information resources provided in Electronic communities. The EigenRumor algorithm, proposed here, calculates the reputation scores based on a link analysis approach by con...
Nakajima Yoshiaki, Terad Masayuki, Fujimura Ko
IPSJ SIG Notes   2000(68) 243-250   Jul 2000
This paper proposes the digital rights definition language'XML Ticket'. It is a language designed to specify diverse types of rights that are currently circulated as pieces of physical medium in the real world. As its name implies, 'XML Ticket'ado...
Nakajima Yoshiaki, Terada Masayuki, Fujimura Ko
Technical report of IEICE. ISEC   100(213) 243-250   Jul 2000
This paper proposes the digital rights definition languate 'XML Ticket'. It is a language designed to specify diverse types of rights that are currently circulated as pieces of physical medium in the real world. As its name implies, 'XML Ticket' a...
KUNO Hiroshi, MATSUYAMA Kazuo, FUJIMURA Ko
58(4) "4-295"-"4-296"   Mar 1999
HANADATE Masayuki, YOSHIDA Yoshihiro, IIDA Koji, FUJIMURA Ko
56(1) 265-266   Mar 1998
Fujimura Ko, Terada Masayuki
IPSJ SIG Notes   97(1) 13-18   Jan 1997
Abstract This paperproposes a services coordination system, called TxBridge, that enables complex processing composed of a set of tasks executed for autonomous services in an open distributed environment. We define composite processing as a set of...