| 2026 | SIGIR | Recasting Web-Scale Query Suggestion as | Sosuke Nishikawa, Naoki Yoshinaga, Nobuhiro Kaji |
| 2025 | EMNLP | Just One is Enough: An Existence-based Alignment Check for Robust Japanese Pronunciation Estimation. | Hayate Nakano, Nobuhiro Kaji |
| 2025 | NAACL | Search Query Embeddings via User-behavior-driven Contrastive Learning. | Sosuke Nishikawa, Jun Hirako, Nobuhiro Kaji, Koki Watanabe, Hiroki Asano, Souta Yamashiro, Shumpei Sano |
| 2023 | EMNLP | Lattice Path Edit Distance: A Romanization-aware Edit Distance for Extracting Misspelling-Correction Pairs from Japanese Search Query Logs. | Nobuhiro Kaji |
| 2019 | NAACL | Conversation Initiation by Diverse News Contents Introduction. | Satoshi Akasaki, Nobuhiro Kaji |
| 2017 | ACL | Chat Detection in an Intelligent Assistant: Combining Task-oriented and Non-task-oriented Spoken Dialogue Systems. | Satoshi Akasaki, Nobuhiro Kaji |
| 2017 | EMNLP | Incremental Skip-gram Model with Negative Sampling. | Nobuhiro Kaji, Hayato Kobayashi |
| 2017 | SIGdial | Predicting Causes of Reformulation in Intelligent Assistants. | Shumpei Sano, Nobuhiro Kaji, Manabu Sassano |
| 2016 | ACL | Prediction of Prospective User Engagement with Intelligent Assistants. | Shumpei Sano, Nobuhiro Kaji, Manabu Sassano |
| 2016 | COLING | Kotonush: Understanding Concepts Based on Values behind Social Media. | Tatsuya Iwanari, Kohei Ohara, Naoki Yoshinaga, Nobuhiro Kaji, Masashi Toyoda, Masaru Kitsuregawa |
| 2016 | IJCAI | Ordering Concepts Based on Common Attribute Intensity. | Tatsuya Iwanari, Naoki Yoshinaga, Nobuhiro Kaji, Toshiharu Nishina, Masashi Toyoda, Masaru Kitsuregawa |
| 2015 | CoNLL | Accurate Cross-lingual Projection between Count-based Word Vectors by Exploiting Translatable Context Pairs. | Shonosuke Ishiwatari, Nobuhiro Kaji, Naoki Yoshinaga, Masashi Toyoda, Masaru Kitsuregawa |
| 2014 | EMNLP | Accurate Word Segmentation and POS Tagging for Japanese Microblogs: Corpus Annotation and Joint Modeling with Lexical Normalization. | Nobuhiro Kaji, Masaru Kitsuregawa |
| 2013 | ACL | Predicting and Eliciting Addressee's Emotion in Online Dialogue. | Takayuki Hasegawa, Nobuhiro Kaji, Naoki Yoshinaga, Masashi Toyoda |
| 2013 | IJCNLP | Modeling User Leniency and Product Popularity for Sentiment Classification. | Wenliang Gao, Naoki Yoshinaga, Nobuhiro Kaji, Masaru Kitsuregawa |
| 2013 | IJCNLP | Efficient Word Lattice Generation for Joint Word Segmentation and POS Tagging in Japanese. | Nobuhiro Kaji, Masaru Kitsuregawa |
| 2013 | PACLIC | Collective Sentiment Classification Based on User Leniency and Product Popularity. | Wenliang Gao, Naoki Yoshinaga, Nobuhiro Kaji, Masaru Kitsuregawa |
| 2012 | EMNLP | Identifying Constant and Unique Relations by using Time-Series Text. | Yohei Takaku, Nobuhiro Kaji, Naoki Yoshinaga, Masashi Toyoda |
| 2011 | EMNLP | Splitting Noun Compounds via Monolingual and Bilingual Paraphrasing: A Study on Japanese Katakana Words. | Nobuhiro Kaji, Masaru Kitsuregawa |
| 2011 | PACLIC | Sentiment Classification in Resource-Scarce Languages by using Label Propagation. | Yong Ren, Nobuhiro Kaji, Naoki Yoshinaga, Masashi Toyoda, Masaru Kitsuregawa |
| 2010 | ACL | Efficient Staggered Decoding for Sequence Labeling. | Nobuhiro Kaji, Yasuhiro Fujiwara, Naoki Yoshinaga, Masaru Kitsuregawa |
| 2009 | ACL | A Combination of Active Learning and Semi-supervised Learning Starting with Positive and Unlabeled Examples for Word Sense Disambiguation: An Empirical Study on Japanese Web Search Query. | Makoto Imamura, Yasuhiro Takayama, Nobuhiro Kaji, Masashi Toyoda, Masaru Kitsuregawa |
| 2008 | APWEB | Socio-Sense: A System for Analysing the Societal Behavior from Long Term Web Archive. | Masaru Kitsuregawa, Takayuki Tamura, Masashi Toyoda, Nobuhiro Kaji |
| 2008 | COLING | Using Hidden Markov Random Fields to Combine Distributional and Pattern-Based Word Clustering. | Nobuhiro Kaji, Masaru Kitsuregawa |
| 2007 | EMNLP | Building Lexicon for Sentiment Analysis from Massive Collection of HTML Documents. | Nobuhiro Kaji, Masaru Kitsuregawa |
| 2006 | ACL | Automatic Construction of Polarity-Tagged Corpus from HTML Documents. | Nobuhiro Kaji, Masaru Kitsuregawa |
| 2005 | IJCNLP | Lexical Choice via Topic Adaptation for Paraphrasing Written Language to Spoken Language. | Nobuhiro Kaji, Sadao Kurohashi |
| 2004 | NAACL | Paraphrasing Predicates from Written Language to Spoken Language Using the Web. | Nobuhiro Kaji, Masashi Okamoto, Sadao Kurohashi |
| 2002 | ACL | Verb Paraphrase based on Case Frame Alignment. | Nobuhiro Kaji, Daisuke Kawahara, Sadao Kurohashi, Satoshi Sato |
| 2000 | COLING | Japanese Case Structure Analysis. | Daisuke Kawahara, Nobuhiro Kaji, Sadao Kurohashi |