Visualizing cluster structures and their changes over time by two-step application of self-organizing maps , Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 7104,  160- 170, 2012, https://doi.org/10.1007/978-3-642-28320-8_14 

類似部分区間検索のためのタイムワーピング距離の下限値計算 , 日本データベース学会Letters, 6( 1), 25- 28, Jun. 2007,  

Transcriptomic analysis indicates putative metabolic changes caused by manipulation of phosphorus availability in rice leaves , JOURNAL OF EXPERIMENTAL BOTANY, 57( 9), 2049- 2059, Jun. 2006, https://doi.org/10.1093/jxb/erj158 

Genomics approach to abscisic acid- and gibberellin-responsive genes in rice. , DNA research : an international journal for rapid publication of reports on genes and genomes, 10( 6), 249- 261, Dec. 2003,  

Collection, mapping, and annotation of over 28,000 cDNA clones from japonica rice. , Science (New York, N.Y.), 301( 5631), 376- 379, Jul. 2003, https://doi.org/10.1126/science.1081288 

Rice Expression Database: the gateway to rice functional genomics , TRENDS IN PLANT SCIENCE, 7( 12), 563- 564, Dec. 2002,  

Dimensionality Reduction Technique with Convex Polyhedra and High - dimensional Index Structure , 情報処理学会論文誌データベース（TOD）, 43( 2), 168- 178, Mar. 2002,  

A Generalized Projected Clustering Method for Finding Clusters of Different Dimensionality , 情報処理学会論文誌データベース（TOD）, 43( 2), 193- 202, Mar. 2002,  

Minimal spanning tree construction with MetricMatrix , IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, E85D( 2), 362- 372, Feb. 2002,  

The Complex Polyhedra Technique: An Index Structure for High-Dimensional Space. , Database Technologies 2002, Thirteenth Australasian Database Conference (ADC2002), Monash University, Melbourne, Victoria, Australia, January/February 2002, ,   , 2002,  

MB+Tree: A Dynamically Updatable Metric Index for Similarity Searches. , Web-Age Information Management, First International Conference, WAIM 2000, Shanghai, China, June 21-23, 2000, Proceedings, ,  356- 373, 2000, https://doi.org/10.1007/3-540-45151-X_34 

MST Construction with Metric Matrix for Clustering. , Advances in Visual Information Management, proceedings of the Fifth Working Conference on Visual Database Systems (VDB5), Fukuoka, Japan, May 10-12, 2000, ,  329- , 2000,  

A metric index MI-tree , 情報処理学会論文誌データベース（TOD）, 40( 6), 104- 114, Aug. 1999,  

DF : The Shortest Path Algorithm for Massive Graphs on Auxiliary Storages , The Transactions of the Institute of Electronics,Information and Communication Engineers., 82( 1), 42- 51, Jan. 1999,  

Change Point Detection of Word Senses by Analyzing Word Vectors Generated by Random Indexing , , 14,  75- 79, Feb. 2019 

An Experimental Result on Visualization of Word Sense Changes by Blog Text Analysis , , 18,  27- 33, Mar. 2018 

An experiment to analyze word sense changes based on the distributional hypothesis, using blog texts generated before and after the 3.11 accident. , つくば国際大学研究紀要, 22( 22), 17‐26- 26, Mar. 2016 

ブログ記事の収集と予備分析~大規模分析に向けて~ , つくば国際大学研究紀要, ( 18), 41- 55, Mar. 2012 

Visualizing Cluster Structures of Blog Articles and Their Changes over Time , 情報処理学会研究報告(CD-ROM), 2010( 6), ROMBUNNO.IFAT-102,NO.3- , Apr. 15, 2011 

大量ブログ記事をデータとした市場セグメンテーションの半自動的分析手順 , 日本オペレーションズ・リサーチ学会春季研究発表会アブストラクト集, 2011,  104- 105, Mar. 17, 2011 

Applicability of Procedure for Market Segmentation to Categorization of Latent Learners : One Example of Application of Media (Weblog Data) to Education , Research report of JSET Conferences, 2010( 4), 119- 122, Oct. 23, 2010 

Time-Arrayed SOM for visualizing cluster changes with time , 全国大会講演論文集, 72( 0), 601- 602, Mar. 8, 2010 

イネ完全長cDNAクローンの収集とゲノム配列へのマッピング,機能解析にむけたアノーテーション , 農業生物資源研究所主要な研究成果, 2003,  36- 37, May. 2004 

いもち病感染初期遺伝子応答のマイクロアレイを用いた解析 , 日本植物生理学会年会要旨集, 45th,  215- , Mar. 20, 2004 

登熟期における遺伝子発現の網羅的解析 , 日本分子生物学会年会プログラム・講演要旨集, 26th,  748- , Nov. 25, 2003 

イネ完全長cDNAプロジェクト:機能分類のためのイネ・オントロジー構築の現状 , 日本分子生物学会年会プログラム・講演要旨集, 26th,  808- , Nov. 25, 2003 

Analysis of Gene Expression in Rice Plant during Blast Infection Using a Rice cDNA Microarray(Abstracts of the Papers Presented at the 2003 Annual Meeting in Tokyo) , Annals of the Phytopathological Society of Japan, 69( 3), 233- 233, Aug. 25, 2003 

10. 植物の代謝 コムギ葉の老化過程におけるRubisco分解 免疫電顕とcDNAマイクロアレイによる解析 , 日本土壌肥料学会講演要旨集, 49,  91- , Aug. 20, 2003 

9.植物の無機栄養 cDNAマイクロアレイによるオオムギの亜鉛欠乏誘導性遺伝子群の解析 , 日本土壌肥料学会講演要旨集, 49,  75- , Aug. 20, 2003 

Analysis of allele-specific stripe-leaf rice mutants caused by disruption of OsEMF1 gene , Plant and Cell Physiology Supplement, 2003( 0), 432- 432, 2003 

Expression study of genes responsible for grain filling in rice through microarray analysis , Plant and Cell Physiology Supplement, 2003( 0), 605- 605, 2003 

Comprehensive analysis of gene expression in immature seeds of antisense SPK transformants , Plant and Cell Physiology Supplement, 2003( 0), 640- 640, 2003 

Analysis of rice genes induced by inoculation with rice blast fungus and ACC treatment using rice 9000 cDNA microarray , Plant and Cell Physiology Supplement, 2003( 0), 573- 573, 2003 

Rice Microarray Project : Setting up the Micorarray System and the Present Situation , Plant and Cell Physiology Supplement, 2003( 0), 571- 571, 2003 

cDNA microarry analysis on peach fruit , Plant and Cell Physiology Supplement, 2003( 0), 113- 113, 2003 

Spatial Bias Removal for Microarray Normalization , 2nd Annual Conference on Microarray Data Analysis, Washington D.C., USA, ,   , Sep. 2002 

イネ完全長cDNAプロジェクトの成果に基づくイネ・オントロジーの構築 , 日本作物学会講演会要旨・資料集, 214th,  268- 269, Aug. 25, 2002 

Dimensionality Reduction Technique with Convex Polyhedra and High-Dimensional Index Structure. , 電子情報通信学会技術研究報告, 101( 193(DE2001 78-104)), 113- 120, Jul. 19, 2001 

A metric index, MetricMatrix, and effectiveness of metric indices , IPSJ SIG Notes, 2001( 44), 145- 152, May. 21, 2001 

Efficient MST construction for Complete Metric Graphs , 全国大会講演論文集, 59( 0), 111- 112, Sep. 28, 1999 

The Extraction of Semantic Relationships and Structuralization of information for Nonlinear Optical Material Design , Proceedings of Annual Conference, Japan Society of Information and Knowledge, 3( 0), 67- 76, 1995