@book{CTT100590606,
  author = {Atsushi Fujii and Katunobu Itou and Tetsuya Ishikawa},
  title = {Speech-Driven Text Retrieval: Using Target IR Collections for Statistical Language Model Adaptation in Speech Recognition},
  publisher = {Springer},
  year = 2002,
}

@article{CTT100590436,
  author = {Tomoyosi Akiba and Katunobu Itou and Atsushi Fujii},
  title = {Language Model Adaptation for Fixed Phrases by Amplifying Partial N-gram Sequences},
  journal = {Systems and Computers in Japan},
  year = 2007,
}

@article{CTT100590437,
  author = {Atsushi Fujii and Katunobu Itou and Tetsuya Ishikawa},
  title = {LODEM: A system for on-demand video lectures},
  journal = {Speech Communication},
  year = 2006,
}

@article{CTT100590445,
  author = {大石 康智 and 伊藤 克亘 and 武田 一哉 and 藤井 敦 and 板倉 文忠},
  title = {事典コーパスを用いた単語階層関係の統計的解析},
  journal = {情報科学技術レターズ},
  year = 2004,
}

@article{CTT100590446,
  author = {秋葉 友良 and 伊藤 克亘 and 藤井 敦},
  title = {N-gramの部分的強調による定型表現への言語モデル適応手法},
  journal = {電子情報通信学会論文誌 D-II},
  year = 2003,
}

@inproceedings{CTT100590712,
  author = {Tomoyosi Akiba and Kei Shimizu and Atsushi Fujii and Katunobu Itou},
  title = {Statistical Machine Translation based Passage Retrieval for Cross-Lingual Question Answering --- Experiments at NTCIR-6},
  booktitle = {Proceedings of the 6th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access},
  year = 2007,
}

@inproceedings{CTT100590713,
  author = {Junta Mizuno and Tomoyosi Akiba and Atsushi Fujii and Katunobu Itou},
  title = {Non-factoid Question Answering Experiments at NTCIR-6: Towards Answer Type Detection for Realworld Questions},
  booktitle = {Proceedings of the 6th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access},
  year = 2007,
}

@inproceedings{CTT100590548,
  author = {Yasunori Ohishi and Katunobu Itou and Kazuya Takeda and Atsushi Fujii},
  title = {Statistical Analysis for Thesaurus Construction using an Encyclopedic Corpus},
  booktitle = {Proceedings of the 5th International Conference on Language Resources and Evaluation},
  year = 2006,
}

@inproceedings{CTT100590728,
  author = {大石 康智 and 伊藤 克亘 and 武田 一哉 and 藤井 敦},
  title = {単語の共起関係と構文情報を利用した単語階層関係の統計的自動識別},
  booktitle = {情報処理学会研究報告},
  year = 2006,
}

@inproceedings{CTT100590737,
  author = {Atsushi Fujii and Katunobu Itou and Tomoyosi Akiba and Tetsuya Ishikawa},
  title = {Exploiting Anchor Text for the Navigational Web Retrieval at NTCIR-5},
  booktitle = {Proceedings of the Fifth NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-lingual Information Access},
  year = 2005,
}

@inproceedings{CTT100590739,
  author = {Kei Shimizu and Tomoyosi Akiba and Atsushi Fujii and Katunobu Itou},
  title = {Bi-directional Cross Language Question Answering using a Single Monolingual QA System},
  booktitle = {Proceedings of the Fifth NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-lingual Information Access},
  year = 2005,
}

@inproceedings{CTT100590738,
  author = {Yuichi Murata and Tomoyosi Akiba and Atsushi Fujii and Katunobu Itou},
  title = {Question Answering Experiments at NTCIR-5: Acquisition of Answer Evaluation Patterns and Context Processing using Passage Retrieval},
  booktitle = {Proceedings of the Fifth NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-lingual Information Access},
  year = 2005,
}

@inproceedings{CTT100590551,
  author = {Atsushi Fujii and Katunobu Itou and Tetsuya Ishikawa},
  title = {Cyclone: An Encyclopedic Web Search Site},
  booktitle = {Special Interest Tracks & Posters of the 14th International World Wide Web Conference},
  year = 2005,
}

@inproceedings{CTT100590555,
  author = {Tomoyosi Akiba and Atsushi Fujii and Katunobu Itou},
  title = {Effects of Language Modeling on Speech-driven Question Answering},
  booktitle = {Proceedings of the 8th International Conference on Spoken Language Processing},
  year = 2004,
}

@inproceedings{CTT100590554,
  author = {Atsushi Fujii and Katunobu Itou and Tomoyosi Akiba and Tetsuya Ishikawa},
  title = {Unsupervised Topic Adaptation for Lecture Speech Retrieval},
  booktitle = {Proceedings of the 8th International Conference on Spoken Language Processing},
  year = 2004,
}

@inproceedings{CTT100590747,
  author = {秋葉 友良 and 伊藤 克亘 and 藤井 敦},
  title = {質問応答における常識的な解の選択と期待効用に基づく回答群の決定},
  booktitle = {情報処理学会研究報告},
  year = 2004,
}

@inproceedings{CTT100590760,
  author = {Tomoyosi Akiba and Atsushi Fujii and Tetsuya Ishikawa and Katunobu Itou},
  title = {Experiments on Web Retrieval Driven by Spontaneously Spoken Queries},
  booktitle = {Proceedings of the Fourth NTCIR Workshop on Research in Information Access Technologies Information Retrieval, Question Answering and Summarization},
  year = 2004,
}

@inproceedings{CTT100590749,
  author = {藤井 敦 and 伊藤 克亘 and 石川 徹也},
  title = {Webマイニングによる事典的コンテンツの構築と多様なアクセス手法},
  booktitle = {電子情報通信学会技術研究報告},
  year = 2004,
}

@inproceedings{CTT100590759,
  author = {Tomoyosi Akiba and Katunobu Itou and Atsushi Fujii},
  title = {Question Answering Using "Common Sense" and Utility Maximization Principle},
  booktitle = {Proceedings of the Fourth NTCIR Workshop on Research in Information Access Technologies Information Retrieval, Question Answering and Summarization},
  year = 2004,
}

@inproceedings{CTT100590560,
  author = {Tomoyosi Akiba and Atsushi Fujii and Katunobu Itou},
  title = {Collecting Spontaneously Spoken Queries for Information Retrieval},
  booktitle = {Proceedings of the 4th International Conference on Language Resources and Evaluation},
  year = 2004,
}

@inproceedings{CTT100590764,
  author = {秋葉 友良 and 伊藤 克亘 and 藤井 敦},
  title = {質問応答における文書集合を用いた常識的な解の選択},
  booktitle = {言語処理学会第10回年次大会発表論文集},
  year = 2004,
}

@inproceedings{CTT100590571,
  author = {Atsushi Fujii and Katunobu Itou},
  title = {Building a Test Collection for Speech-Driven Web Retrieval},
  booktitle = {Proceedings of the 8th European Conference on Speech Communication and Technology},
  year = 2003,
}

@inproceedings{CTT100590570,
  author = {Atsushi Fujii and Katunobu Itou and Tomoyosi Akiba and Tetsuya Ishikawa},
  title = {A Cross-media Retrieval System for Lecture Videos},
  booktitle = {Proceedings of the 8th European Conference on Speech Communication and Technology},
  year = 2003,
}

@inproceedings{CTT100590572,
  author = {Tomoyosi Akiba and Katunobu Itou and Atsushi Fujii},
  title = {Adapting Language Models for Frequent Fixed Phrases by Emphasizing N-gram Subsets},
  booktitle = {Proceedings of the 8th European Conference on Speech Communication and Technology},
  year = 2003,
}

@inproceedings{CTT100590575,
  author = {Atsushi Fujii and Katunobu Itou and Tetsuya Ishikawa},
  title = {LODEM: A Multilingual Lecture-on-demand System},
  booktitle = {Proceedings of the 2003 ISCA Workshop on Multilingual Spoken Document Retrieval},
  year = 2003,
}

@inproceedings{CTT100590775,
  author = {秋葉 友良 and 伊藤 克亘 and 藤井 敦},
  title = {音声入力型情報検索のための自由発話収録},
  booktitle = {日本音響学会講演論文集},
  year = 2003,
}

@inproceedings{CTT100590577,
  author = {Atsushi Fujii and Katunobu Itou and Tetsuya Ishikawa},
  title = {A System for On-demand Video Lectures},
  booktitle = {AAAI-03 Spring Symposium on Intelligent Multimedia Knowledge Management},
  year = 2003,
}

@inproceedings{CTT100590576,
  author = {Atsushi Fujii and Katunobu Itou},
  title = {Evaluating Speech-Driven Web Retrieval in the Third NTCIR Workshop},
  booktitle = {AAAI-03 Spring Symposium on Intelligent Multimedia Knowledge Management},
  year = 2003,
}

@inproceedings{CTT100590771,
  author = {藤井 敦 and 伊藤 克亘 and 秋葉 友良},
  title = {事典的Web検索サイトの構築},
  booktitle = {言語処理学会第9回年次大会発表論文集},
  year = 2003,
}

@inproceedings{CTT100590774,
  author = {坂本 尚実 and 藤井 敦 and 石川 徹也 and 秋葉 友良 and 伊藤 克亘},
  title = {講演音声の認識における言語モデルのタスク適応},
  booktitle = {日本音響学会講演論文集},
  year = 2003,
}

@inproceedings{CTT100590779,
  author = {Atsushi Fujii and Katunobu Itou},
  title = {Evaluating Speech-Driven IR in the NTCIR-3 Web Retrieval Task},
  booktitle = {Proceedings of the Third NTCIR Workshop on Research in Information Retrieval, Automatic Text Summarization and Question Answering},
  year = 2002,
}

@inproceedings{CTT100590778,
  author = {Tomoyosi Akiba and Katunobu Itou and Atsushi Fujii and Tetsuya Ishikawa},
  title = {Towards Speech-Driven Question Answering: Experiments Using the NTCIR-3 Question Answering Collection},
  booktitle = {Proceedings of the Third NTCIR Workshop on Research in Information Retrieval, Automatic Text Summarization and Question Answering},
  year = 2002,
}

@inproceedings{CTT100590676,
  author = {伊藤 克亘 and 藤井 敦},
  title = {NTCIR-3ワークショップにおける音声入力型ウェブ検索タスク},
  booktitle = {情報処理学会研究報告},
  year = 2002,
}

@inproceedings{CTT100590782,
  author = {秋葉 友良 and 伊藤 克亘 and 藤井 敦},
  title = {単語連鎖を重視したN-gram言語モデル平滑化手法の検討},
  booktitle = {日本音響学会講演論文集},
  year = 2002,
}

@inproceedings{CTT100590578,
  author = {Tomoyosi Akiba and Katunobu Itou and Atsushi Fujii and Tetsuya Ishikawa},
  title = {Selective Back-off Smoothing for Incorporating Grammatical Constraints into the N-gram language model},
  booktitle = {Proceedings of the 7th International Conference on Spoken Language Processing},
  year = 2002,
}

@inproceedings{CTT100590781,
  author = {伊藤 克亘 and 秋葉 友良 and 藤井 敦},
  title = {WWWは大語彙連続音声認識の学習データとして使えるか?},
  booktitle = {日本音響学会講演論文集},
  year = 2002,
}

@inproceedings{CTT100590580,
  author = {Atsushi Fujii and Katunobu Itou and Tetsuya Ishikawa},
  title = {A Method for Open-Vocabulary Speech-Driven Text Retrieval},
  booktitle = {Proceedings of the 2002 Conference on Empirical Methods in Natural Language Processing},
  year = 2002,
}

@inproceedings{CTT100590785,
  author = {秋葉 友良 and 伊藤 克亘 and 藤井 敦 and 石川 徹也},
  title = {部分N-gram頻度情報を利用した質問応答定型表現への言語モデル適応},
  booktitle = {情報処理学会研究報告},
  year = 2002,
}

@inproceedings{CTT100590786,
  author = {藤井 敦 and 伊藤 克亘 and 石川 徹也},
  title = {WWWは百科事典として使えるか? −大規模コーパスの構築−},
  booktitle = {情報処理学会研究報告},
  year = 2002,
}

@inproceedings{CTT100590581,
  author = {Atsushi Fujii and Katunobu Itou and Tetsuya Ishikawa},
  title = {Producing a Large-scale Encyclopedic Corpus over the Web},
  booktitle = {Proceedings of the 3rd International Conference on Language Resources and Evaluation},
  year = 2002,
}

@inproceedings{CTT100590792,
  author = {藤井 敦 and 伊藤 克亘 and 石川 徹也},
  title = {ユーザ発話中の未知語を自動補完する音声入力型検索システム},
  booktitle = {言語処理学会第8回年次大会発表論文集},
  year = 2002,
}

@inproceedings{CTT100590794,
  author = {伊藤 克亘 and 藤井 敦 and 石川 徹也},
  title = {未知語検出を用いた語彙統制のない音声検索},
  booktitle = {日本音響学会講演論文集},
  year = 2002,
}

@inproceedings{CTT100590789,
  author = {藤井 敦 and 伊藤 克亘 and 石川 徹也},
  title = {音声文書検索の応用によるオンデマンド講演システム},
  booktitle = {言語処理学会第8回年次大会発表論文集},
  year = 2002,
}

@inproceedings{CTT100590791,
  author = {秋葉 友良 and 伊藤 克亘 and 藤井 敦 and 石川 徹也},
  title = {音声入力による質問応答システムのための音声認識用言語モデルの検討},
  booktitle = {言語処理学会第8回年次大会発表論文集},
  year = 2002,
}

@inproceedings{CTT100590582,
  author = {Katunobu Itou and Atsushi Fujii and Tetsuya Ishikawa},
  title = {Language Modeling for Multi-Domain Speech-Driven Text Retrieval},
  booktitle = {IEEE Automatic Speech Recognition and Understanding Workshop},
  year = 2001,
}

@inproceedings{CTT100590795,
  author = {伊藤 克亘 and 藤井 敦 and 石川 徹也},
  title = {音声文書検索を用いたオンデマンド講義システム},
  booktitle = {情報処理学会研究報告},
  year = 2001,
}

@inproceedings{CTT100590796,
  author = {伊藤 克亘 and 秋葉 友良 and 藤井 敦 and 石川 徹也},
  title = {音声入力型テキスト検索システムのための音声認識},
  booktitle = {日本音響学会講演論文集},
  year = 2001,
}

@inproceedings{CTT100590798,
  author = {藤井 敦 and 伊藤 克亘 and 秋葉 友良 and 石川 徹也},
  title = {音声入力型文書検索システムの開発とテストコレクションの構築},
  booktitle = {情報処理学会研究報告},
  year = 2001,
}

@inproceedings{CTT100590804,
  author = {藤井 敦 and 伊藤 克亘 and 秋葉 友良 and 石川 徹也},
  title = {音声言語データの構造化に基づく講演発表の自動要約},
  booktitle = {話し言葉の科学と工学ワークショップ講演予稿集},
  year = 2001,
}