| 2025 | ADMA | Improving the Efficiency of Interactive Sequential Pattern Mining by Closed Pattern Discovery. | Yui Aoyagi, Hieu Hanh Le, Ryosuke Matsuo, Tomoyoshi Yamazaki, Kenji Araki, Haruo Yokota, Masato Oguchi |
| 2025 | CBMS | Extracting and Visualizing Frequent Medical Instruction Patterns with Statistical Insights from Multi-Institutional Electronic Medical Record Data. | Miwa Sugitani, Ryosuke Matsuo, Tomoyoshi Yamazaki, Kenji Araki, Masato Oguchi, Haruo Yokota, Hieu Hanh Le |
| 2023 | CBMS | Analysis of Transitions in Differences between Frequent Medical-order Sequences for COVID-19. | Zitai Zhao, Yuki Yasumitsu, Hieu Hanh Le, Tomoyoshi Yamazaki, Kenji Araki, Haruo Yokota |
| 2022 | DEXA | Comparison of Sequence Variants and the Application in Electronic Medical Records. | Yuqing Li, Hieu Hanh Le, Ryosuke Matsuo, Tomoyoshi Yamazaki, Kenji Araki, Haruo Yokota |
| 2022 | LREC | Creation of Polish Online News Corpus for Political Polarization Studies. | Joanna Szwoch, Mateusz Staszkow, Rafal Rzepka, Kenji Araki |
| 2021 | CBMS | Sequential Pattern Mining of Large Combinable Items with Values for a Set-of-items Recommendation. | Hieu Hanh Le, Yutaka Horino, Tomoyoshi Yamazaki, Kenji Araki, Haruo Yokota |
| 2019 | AAAI | A Novel Machine Learning-based Sentiment Analysis Method for Chinese Social Media Considering Chinese Slang Lexicon and Emoticons. | Da Li, Rafal Rzepka, Michal Ptaszynski, Kenji Araki |
| 2019 | DEXA | Analyzing Sequence Pattern Variants in Sequential Pattern Mining and Its Application to Electronic Medical Record Systems. | Hieu Hanh Le, Tatsuhiro Yamada, Yuichi Honda, Masaaki Kayahara, Muneo Kushima, Kenji Araki, Haruo Yokota |
| 2019 | IIWAS | Effects of Mining Parameters on the Performance of the Sequence Pattern Variants Analyzing Method Applied to Electronic Medical Record Systems. | Hieu Hanh Le, Tatsuhiro Yamada, Yuichi Honda, Masaaki Kayahara, Muneo Kushima, Kenji Araki, Haruo Yokota |
| 2019 | IJCAI | Comparing Conceptual Metaphor Theory-Related Features Using Classification Algorithms in Searching for Expressions Used Figuratively Within Japanese Texts. | Mateusz Babieno, Rafal Rzepka, Kenji Araki, Pawel Dybala |
| 2019 | IJCAI | Emoji-Aware Attention-based Bi-directional GRU Network Model for Chinese Sentiment Analysis. | Da Li, Rafal Rzepka, Michal Ptaszynski, Kenji Araki |
| 2019 | IJCAI | Debate Outcome Prediction using Automatic Persuasiveness Evaluation and Counterargument Relations. | Daiki Shirafuji, Rafal Rzepka, Kenji Araki |
| 2019 | IJCAI | A Convolutional Neural Network For Ranking Advice Quality In Texts For A Motivational Dialogue System. | Patrycja Swieczkowska, Rafal Rzepka, Kenji Araki |
| 2019 | IJCAI | Implicit Knowledge Completion Using Relevance Calculation of Distributed Word Representations. | Sho Takishita, Rafal Rzepka, Kenji Araki |
| 2019 | IDEAS | Differentially private sequential pattern mining considering time interval for electronic medical record systems. | Hieu Hanh Le, Muneo Kushima, Kenji Araki, Haruo Yokota |
| 2019 | NAACL | Word Embedding-Based Automatic MT Evaluation Metric using Word Position Information. | Hiroshi Echizen-ya, Kenji Araki, Eduard H. Hovy |
| 2018 | LREC | Comparison of Pun Detection Methods Using Japanese Pun Corpus. | Motoki Yatsu, Kenji Araki |
| 2017 | IJCAI | Asystent - a Prototype of a Motivating Electronic Assistant. | Patrycja Swieczkowska, Jolanta Bachan, Rafal Rzepka, Kenji Araki |
| 2017 | VLDB | Detection and Visualization of Variants in Typical Medical Treatment Sequences. | Yuichi Honda, Muneo Kushima, Tomoyoshi Yamazaki, Kenji Araki, Haruo Yokota |
| 2016 | HCI | Exploring Risk-Benefit Factors of Electronic Clinical Pathways Regarding Nursing Communication. | Tadashi Kanehira, Taro Sugihara, Muneou Suzuki, Akio Gofuku, Kenji Araki |
| 2016 | IJCAI | Praiseworthy Acts Recognition Using Web-based Knowledge and Semantic Categories. | Rafal Rzepka, Kohei Matsumoto, Kenji Araki |
| 2016 | ISCC | Sequential pattern mining on electronic medical records with handling time intervals and the efficacy of medicines. | Keishiro Uragaki, Tomoyuki Hosaka, Yoshitaka Arahori, Muneo Kushima, Tomoyoshi Yamazaki, Kenji Araki, Haruo Yokota |
| 2015 | AMIA | Archetype Based Nationwide Electronic Health Record Development in Japan. | Naoto Kume, Shinji Kobayashi, Kenji Araki, Satoshi Inoue, Hiroyuki Yoshihara |
| 2015 | IJCAI | Brute Force Works Best Against Bullying. | Michal Ptaszynski, Fumito Masui, Yasutomo Kimura, Rafal Rzepka, Kenji Araki |
| 2015 | IJCAI | Haiku Generator that Reads Blogs and Illustrates Them with Sounds and Images. | Rafal Rzepka, Kenji Araki |
| 2015 | IECON | Potential of electronic clinical pathways as triggers for eliciting implicit knowledge. | Taro Sugihara, Hideki Sakanishi, Akio Gofuku, Katsuhiro Umemoto, Muneou Suzuki, Kenji Araki |
| 2015 | SMC | Populating ConceptNet Knowledge Base with Information Acquired from Japanese Wikipedia. | Marek Krawczyk, Rafal Rzepka, Kenji Araki |
| 2014 | KES | Detecting Emotive Sentences with Pattern-based Language Modelling. | Michal Ptaszynski, Fumito Masui, Rafal Rzepka, Kenji Araki |
| 2013 | ICDM | Possible Usage of Sentiment Analysis for Calculating Vectors of Felific Calculus. | Rafal Rzepka, Kenji Araki |
| 2013 | IJCNLP | Detecting Cyberbullying Entries on Informal School Websites Based on Category Relevance Maximization. | Taisei Nitta, Fumito Masui, Michal Ptaszynski, Yasutomo Kimura, Rafal Rzepka, Kenji Araki |
| 2013 | RANLP | Automatic Evaluation Metric for Machine Translation that is Independent of Sentence Length. | Hiroshi Echizen-ya, Kenji Araki, Eduard H. Hovy |
| 2012 | CIKM | Data filtering in humor generation: comparative analysis of hit rate and co-occurrence rankings as a method to choose usable pun candidates. | Pawel Dybala, Rafal Rzepka, Kenji Araki, Kohichi Sayama |
| 2012 | CogSci | Automatic Reverse Engineering of Human Beavior Based on Text for Knowledge Acquisition. | Rafal Rzepka, Kenji Araki |
| 2012 | HRI | Does a robot that can learn verbs lead to better user perception? | Dai Hasegawa, Kenji Araki |
| 2012 | LREC | Two Database Resources for Processing Social Media English Text. | Eleanor Clark, Kenji Araki |
| 2012 | PKAW | Externalizing Senses of Worth in Medical Service Based on Ontological Engineering. | Taisuke Ogawa, Mitsuru Ikeda, Muneou Suzuki, Kenji Araki |
| 2011 | IC3K | Acquisition of Service Practical Knowledge based on Ontologized Medical Workflow. | Taisuke Ogawa, Mitsuru Ikeda, Muneou Suzuki, Kenji Araki, Kiti Hasida |
| 2011 | ICCE | Proposal for a Conversational English Tutoring System that Encourages User Engagement. | Michal Mazur, Rafal Rzepka, Kenji Araki |
| 2010 | AAAI | CAO: A Fully Automatic Emoticon Analysis System. | Michal Ptaszynski, Jacek Maciejewski, Pawel Dybala, Rafal Rzepka, Kenji Araki |
| 2010 | ACL | Automatic Evaluation Method for Machine Translation Using Noun-Phrase Chunking. | Hiroshi Echizen-ya, Kenji Araki |
| 2009 | IJCAI | Towards Context Aware Emotional Intelligence in Machines: Computing Contextual Appropriateness of Affective States. | Michal Ptaszynski, Pawel Dybala, Wenhan Shi, Rafal Rzepka, Kenji Araki |
| 2009 | IUI | Serious processing for frivolous purpose: a chatbot using web-mining supported affect analysis and pun generation. | Rafal Rzepka, Wenhan Shi, Michal Ptaszynski, Pawel Dybala, Shinsuke Higuchi, Kenji Araki |
| 2009 | NAACL | Evaluation of a System for Noun Concepts Acquisition from Utterances about Images (SINCA) Using Daily Conversation Data. | Yuzu Uchida, Kenji Araki |
| 2008 | AINA | A Graphic Reputation Analysis System for Mining Japanese Weblog Based on both Unstructured and Structured Information. | Guangwei Wang, Kenji Araki |
| 2008 | COLING | A Complete and Modestly Funny System for Generating and Performing Japanese Stand-Up Comedy. | Jonas Sjbergh, Kenji Araki |
| 2008 | EMNLP | A Casual Conversation System Using Modality and Word Associations Retrieved from the Web. | Shinsuke Higuchi, Rafal Rzepka, Kenji Araki |
| 2008 | LREC | A Multi-Lingual Dictionary of Dirty Words. | Jonas Sjbergh, Kenji Araki |
| 2008 | LREC | What is poorly Said is a Little Funny. | Jonas Sjbergh, Kenji Araki |
| 2008 | SMC | Straight thinking straight from the net - on the web-based intelligent talking toy development. | Rafal Rzepka, Shinsuke Higuchi, Michal Ptaszynski, Kenji Araki |
| 2007 | KES | Evaluation of Trivial Dialogue Phrase Databases Through Practical Application to User-Computer Conversation - Case Study: English - Spanish. | Calkin A. S. Montero, Kenji Araki |
| 2007 | NAACL | Modifying SO-PMI for Japanese Weblog Opinion Mining by Using a Balancing Factor and Detecting Neutral Expressions. | Guangwei Wang, Kenji Araki |
| 2007 | NAACL | OMS-J: An Opinion Mining System for Japanese Weblog Reviews Using a Combination of Supervised and Unsupervised Approaches. | Guangwei Wang, Kenji Araki |
| 2007 | NLDB | Unsupervised Language Independent Genetic Algorithm Approach to Trivial Dialogue Phrase Generation and Evaluation. | Calkin A. S. Montero, Kenji Araki |
| 2007 | NLDB | Zero Anaphora Resolution in Chinese and Its Application in Chinese-English Machine Translation. | Jing Peng, Kenji Araki |
| 2007 | SIGdial | Analysis of User Reactions to Turn-Taking Failures in Spoken Dialogue Systems. | Mikio Nakano, Yuka Nagano, Kotaro Funakoshi, Toshihiko Ito, Kenji Araki, Yuji Hasegawa, Hiroshi Tsujino |
| 2006 | ACL | Is It Correct? - Towards Web-Based Evaluation of Automatic Natural Language Phrase Generation. | Calkin A. S. Montero, Kenji Araki |
| 2006 | Interspeech | Is voice quality enough? - study on how the situation and user²s awareness influence the utterance features. | Shinya Yamada, Toshihiko Itoh, Kenji Araki |
| 2006 | MMM | A SVM-based personal recommendation system for TV programs. | Jin An Xu, Kenji Araki |
| 2005 | CICLING | Learning the Query Generation Patterns. | Marcin Skowron, Kenji Araki |
| 2005 | CIS | A Naive Statistics Method for Electronic Program Guide Recommendation System. | Jin An Xu, Kenji Araki |
| 2005 | IJCAI | Naturalness of an Utterance Based on the Automatically Retrieved Commonsense. | Rafal Rzepka, Yali Ge, Kenji Araki |
| 2005 | IJCNLP | Detecting the Countability of English Compound Nouns Using Web-based Models. | Jing Peng, Kenji Araki |
| 2005 | Interspeech | Linguistic and acoustic features depending on different situations - the experiments considering speech recognition rate. | Shinya Yamada, Toshihiko Itoh, Kenji Araki |
| 2005 | KES | Learning Method for Automatic Acquisition of Translation Knowledge. | Hiroshi Echizen-ya, Kenji Araki, Yoshio Momouchi |
| 2005 | KES | Support for Internet-Based Commonsense Processing - Causal Knowledge Discovery Using Japanese "If" Forms. | Yali Ge, Rafal Rzepka, Kenji Araki |
| 2005 | KES | Enhancing Computer Chat: Toward a Smooth User-Computer Interaction. | Calkin A. S. Montero, Kenji Araki |
| 2005 | KES | Modeling the Discovery of Critical Utterances. | Calkin A. S. Montero, Yukio Ohsawa, Kenji Araki |
| 2005 | NLDB | Automatic Acquisition of Adjacent Information and Its Effectiveness in Extraction of Bilingual Word Pairs from Parallel Corpora. | Hiroshi Echizen-ya, Kenji Araki, Yoshio Momouchi |
| 2005 | PAKDD | Automatic Extraction of Low Frequency Bilingual Word Pairs from Parallel Corpora with Various Languages. | Hiroshi Echizen-ya, Kenji Araki, Yoshio Momouchi |
| 2004 | CICLING | Acquisition of Word Translations Using Local Focus-Based Learning in Ainu-Japanese Parallel Corpora. | Hiroshi Echizen-ya, Kenji Araki, Yoshio Momouchi, Koji Tochinai |
| 2004 | CICLING | Evaluation of Japanese Dialogue Processing Method Based on Similarity Measure Using tf· AoI. | Yasutomo Kimura, Kenji Araki, Koji Tochinai |
| 2004 | KES | Information Acquisition Using Chat Environment for Question Answering. | Calkin A. S. Montero, Kenji Araki |
| 2003 | DIS | Bacterium Lingualis? The Web-Based Commonsensical Knowledge Discovery Method. | Rafal Rzepka, Kenji Araki, Koji Tochinai |
| 2003 | SMC | Soccer agents using inductive learning with Hand-coded rules. | Hisayuki Sasaoka, Shunsuke Muraki, Kenji Araki |
| 2002 | ACL | Evaluation of Direct Speech Translation Method Using Inductive Learning for Conversations in the Travel Domain. | Koji Murakami, Makoto Hiroshige, Kenji Araki, Koji Tochinai |
| 2002 | COLING | Study of Practical Effectiveness for Machine Translation Using Recursive Chain-link-type Learning. | Hiroshi Echizen-ya, Kenji Araki, Yoshio Momouchi, Koji Tochinai |
| 2002 | Interspeech | Evaluation of the method to detect Japanese local speech rate deceleration applying the variable threshold with a constant term. | Keiichi Takamaru, Makoto Hiroshige, Kenji Araki, Koji Tochinai |
| 2001 | Interspeech | On differential limen of word-based local speechrate variation in Japanese expressed by duration ratio. | Makoto Hiroshige, Kenji Araki, Koji Tochinai |
| 2001 | Interspeech | Detecting Japanese local speech rate deceleration in spontaneous conversational speech using a variable threshold. | Keiichi Takamaru, Makoto Hiroshige, Kenji Araki, Koji Tochinai |
| 2001 | SMC | Performance evaluation for spoken language of a syntactic analysis method using inductive learning. | Y. Masatomi, Kenji Araki, Koji Tochinai |
| 2001 | SMC | Evaluation of generality of inductive learning for preprocessing in machine translation. | Yasuto Nagashima, Kenji Araki, Koji Tochinai |
| 2001 | SMC | Evaluation for generality of natural Japanese sentence generation method using inductive learning. | Masayuki Ozaki, Kenji Araki, Koji Tochinai |
| 2000 | Interspeech | On perception of word-based local speech rate in Japanese without focusing attention. | Makoto Hiroshige, Kantaro Suzuki, Kenji Araki, Koji Tochinai |
| 2000 | Interspeech | A proposal of a model to extract Japanese voluntary speech rate control. | Keiichi Takamaru, Makoto Hiroshige, Kenji Araki, Koji Tochinai |
| 1999 | PACLIC | Sub-Sentential Alignment Method by Analogy. | Tantely Andriamanankasina, Kenji Araki, Koji Tochinai |
| 1999 | PACLIC | A Study of Performance Evaluation for GA-ILMT Using Travel English. | Hiroshi Echizen-ya, Kenji Araki, Yoshio Momouchi, Koji Tochinai |
| 1996 | COLING | Machine Translation Method Using Inductive Learning with Genetic Algorithms. | Hiroshi Echizen-ya, Kenji Araki, Yoshio Momouchi, Koji Tochinai |