Spontaneous dialogue speech recognition using cross-word context constrained word graphs. - Tohru Shimizu; Hirofumi Yamamoto; Hirokazu Masataki; Shoichi Matsunaga; Yoshinori Sagisaka (ICASSP, 1996)

Integration of grammar and statistical language constraints for partial word-sequence recognition. - Hajime Tsukada; Hirofumi Yamamoto; Yoshinori Sagisaka (EUROSPEECH, 1997)

Grammatical word graph re-generation for spontaneous speech recognition. - Hajime Tsukada; Hirofumi Yamamoto; Toshiyuki Takezawa; Yoshinori Sagisaka (ICSLP, 1998)

Reliable utterance segment recognition by integrating a grammar with statistical language constraints. - Hajime Tsukada; Hirofumi Yamamoto; Toshiyuki Takezawa; Yoshinori Sagisaka (Speech Commun., 1998)

Multi-class composite N-gram based on connection direction. - Hirofumi Yamamoto; Yoshinori Sagisaka (ICASSP, 1999)

Part-of-speech n-gram and word n-gram fused language model. - Hirofumi Yamamoto; Yoshinori Sagisaka (EUROSPEECH, 1999)

Pronunciation variants description using recognition error modeling with phonetic derivation hypotheses. - Hideharu Nakajima; Yoshinori Sagisaka; Hirofumi Yamamoto (INTERSPEECH, 2000)

Rules, but what for? - rule description as efficient and robust abstraction of corpora and optimal fitting to applications -. - Yoshinori Sagisaka; Hirofumi Yamamoto; Minoru Tsuzaki; Hiroaki Kato (INTERSPEECH, 2000)

A hierarchical language model incorporating class-dependent word models for OOV words recognition. - Koichi Tanigaki; Hirofumi Yamamoto; Yoshinori Sagisaka (INTERSPEECH, 2000)

A language model for conversational speech recognition using information designed for speech translation. - Hirofumi Yamamoto; Kouichi Tanigaki; Yoshinori Sagisaka (INTERSPEECH, 2000)

An embedded knowledge integration for hybrid language modelling. - Shuwu Zhang; Hirofumi Yamamoto; Yoshinori Sagisaka (INTERSPEECH, 2000)

Multi-Class Composite N-gram Language Model for Spoken Language Processing Using Multiple Word Clusters. - Hirofumi Yamamoto; Shuntaro Isogai; Yoshinori Sagisaka (ACL, 2001)

Multi-class composite n-gram language model using multiple word clusters and word successions. - Shuntaro Isogai; Katsuhiko Shirai; Hirofumi Yamamoto; Yoshinori Sagisaka (INTERSPEECH, 2001)

New language models using phrase structures extracted from parse trees. - Takatoshi Jitsuhiro; Hirofumi Yamamoto; Setsuo Yamada; Yoshinori Sagisaka (INTERSPEECH, 2001)

Structured language model for class identification of out-of-vocabulary words arising from multiple wordclasses. - Shigehiko Onishi; Hirofumi Yamamoto; Yoshinori Sagisaka (INTERSPEECH, 2001)

Finding Translation Pairs from English-Japanese Untokenized Aligned Corpora. - Gen-ichiro Kikui; Hirofumi Yamamoto (Speech-to-Speech Translation@ACL, 2002)

Language Model Adaptation with Additional Text Generated by Machine Translation. - Hideharu Nakajima; Hirofumi Yamamoto; Taro Watanabe (COLING, 2002)

System-Level Design of IEEE1394 Bus Segment Bridge. - Takao Onoye; Yukihiro Nakamura; Atsuhito Shigiya; Keishi Chikamura; Kosuke Tsujino; Tomonori Izumi; Hirofumi Yamamoto (ISSS, 2002)

Toward a Broad-coverage Bilingual Corpus for Speech Translation of Travel Conversations in the Real World. - Toshiyuki Takezawa; Eiichiro Sumita; Fumiaki Sugaya; Hirofumi Yamamoto; Seiichi Yamamoto (LREC, 2002)

Mis-recognized utterance detection using multiple language models generated by clustered sentences. - Katsuhisa Fujinaga; Hiroaki Kokubo; Hirofumi Yamamoto; Gen-ichiro Kikui; Hiroshi Shimodaira (INTERSPEECH, 2003)

Word class modeling for speech recognition with out-of-task words using a hierarchical language model. - Yoshihiko Ogawa; Hirofumi Yamamoto; Yoshinori Sagisaka; Gen-ichiro Kikui (INTERSPEECH, 2003)

Adaptation Using Out-of-Domain Corpus within EBMT. - Takao Doi; Eiichiro Sumita; Hirofumi Yamamoto (HLT-NAACL, 2003)

Multiclass composite N-gram language model based on connection direction. - Hirofumi Yamamoto; Yoshinori Sagisaka (Syst. Comput. Jpn., 2003)

Multi-class composite N-gram language model. - Hirofumi Yamamoto; Shuntaro Isogai; Yoshinori Sagisaka (Speech Commun., 2003)

A Unified Approach in Speech-to-Speech Translation: Integrating Features of Speech recognition and Machine Translation. - Ruiqiang Zhang; Gen-ichiro Kikui; Hirofumi Yamamoto; Frank K. Soong; Taro Watanabe; Wai Kit Lo (COLING, 2004)

Mis-recognized utterance detection using hierarchical language model. - Hirofumi Yamamoto; Gen-ichiro Kikui; Yoshinori Sagisaka (INTERSPEECH, 2004)

Improved spoken language translation using n-best speech recognition hypotheses. - Ruiqiang Zhang; Gen-ichiro Kikui; Hirofumi Yamamoto; Frank K. Soong; Taro Watanabe; Eiichiro Sumita; Wai Kit Lo (INTERSPEECH, 2004)

Multi-lingual speech recognition system for speech-to-speech translation. - Satoshi Nakamura 001; Konstantin Markov; Takatoshi Jitsuhiro; Jinsong Zhang 001; Hirofumi Yamamoto; Gen-ichiro Kikui (IWSLT, 2004)

Speech recognition of a named entity. - Tatsuhiko Tomita; Yoshiyuki Okimoto; Hirofumi Yamamoto; Yoshinori Sagisaka (ICASSP (1), 2005)

Using multiple recognition hypotheses to improve speech translation. - Ruiqiang Zhang; Gen-ichiro Kikui; Hirofumi Yamamoto (IWSLT, 2005)

A decoding algorithm for word lattice translation in speech translation. - Ruiqiang Zhang; Gen-ichiro Kikui; Hirofumi Yamamoto; Wai-Kit Lo (IWSLT, 2005)

Graph-based Retrieval for Example-based Machine Translation Using Edit-distance. - Takao Doi; Hirofumi Yamamoto; Eiichiro Sumita (MTSummit (Workshop), 2005)

Example-based machine translation using efficient sentence retrieval based on edit-distance. - Takao Doi; Hirofumi Yamamoto; Eiichiro Sumita (ACM Trans. Asian Lang. Inf. Process., 2005)

Language modeling of Chinese personal names based on character units for continuous Chinese speech recognition. - Xinhui Hu; Hirofumi Yamamoto; Gen-ichiro Kikui; Yoshinori Sagisaka (INTERSPEECH, 2006)

Speech recognition of foreign out-of-vocabulary words using a hierarchical language model. - Hirofumi Yamamoto; Gen-ichiro Kikui; Satoshi Nakamura 001; Yoshinori Sagisaka (INTERSPEECH, 2006)

The niCT-ATR statistical machine translation system for the IWSLT 2006 evaluation. - Ruiqiang Zhang; Hirofumi Yamamoto; Michael Paul; Hideo Okuma; Keiji Yasuda; Yves Lepage; Etienne Denoual; Daichi Mochihashi; Andrew M. Finch; Eiichiro Sumita (IWSLT, 2006)

The ATR multilingual speech-to-speech translation system. - Satoshi Nakamura 001; Konstantin Markov; Hiromi Nakaiwa; Gen-ichiro Kikui; Hisashi Kawai; Takatoshi Jitsuhiro; Jinsong Zhang 001; Hirofumi Yamamoto; Eiichiro Sumita; Seiichi Yamamoto (IEEE Trans. Speech Audio Process., 2006)

The NICT/ATR speech translation system for IWSLT 2007. - Andrew M. Finch; Etienne Denoual; Hideo Okuma; Michael Paul; Hirofumi Yamamoto; Keiji Yasuda; Ruiqiang Zhang; Eiichiro Sumita (IWSLT, 2007)

Multilingual Mobile-Phone Translation Services for World Travelers. - Michael Paul; Hideo Okuma; Hirofumi Yamamoto; Eiichiro Sumita; Shigeki Matsuda; Tohru Shimizu; Satoshi Nakamura 001 (COLING (Demos), 2008)

Objective evaluation of second language learner2s translation proficiency using statistical translation measures. - Hajime Tsubaki; Keiji Yasuda; Hirofumi Yamamoto; Yoshinori Sagisaka (ExLing, 2008)

The Application of FRD with Avalanche Capability for Improvement of Power Conversion Efficiency in Output Rectifier and PFC. - Saburo Okumura; Hirofumi Yamamoto; Yoshikazu Nishimura; Hironori Hiraoka; Kenzo Danjo; Hiroki Morimoto (IAS, 2008)

Method of Selecting Training Data to Build a Compact and Efficient Translation Model. - Keiji Yasuda; Ruiqiang Zhang; Hirofumi Yamamoto; Eiichiro Sumita (IJCNLP, 2008)

Utilization of Huge Written Text Corpora for Conversational Speech Recognition. - Xinhui Hu; Hirofumi Yamamoto; Jinsong Zhang 001; Keiji Yasuda; Youzheng Wu; Hideki Kashioka (ISCSLP, 2008)

The NICT/ATR speech translation system for IWSLT 2008. - Masao Utiyama; Andrew M. Finch; Hideo Okuma; Michael Paul; Hailong Cao; Hirofumi Yamamoto; Keiji Yasuda; Eiichiro Sumita (IWSLT, 2008)

System Description of NiCT-ATR SMT for NTCIR-7. - Keiji Yasuda; Andrew M. Finch; Hideo Okuma; Masao Utiyama; Hirofumi Yamamoto; Eiichiro Sumita (NTCIR, 2008)

Introducing a Translation Dictionary into Phrase-Based SMT. - Hideo Okuma; Hirofumi Yamamoto; Eiichiro Sumita (IEICE Trans. Inf. Syst., 2008)

Bilingual Cluster Based Models for Statistical Machine Translation. - Hirofumi Yamamoto; Eiichiro Sumita (IEICE Trans. Inf. Syst., 2008)

Two methods for stabilizing MERT: NICT at IWSLT 2009. - Masao Utiyama; Hirofumi Yamamoto; Eiichiro Sumita (IWSLT, 2009)

Two methods for stabilizing MERT. - Masao Utiyama; Hirofumi Yamamoto; Eiichiro Sumita (IWSLT (Evaluation Campaign), 2009)

On the Importance of Pivot Language Selection for Statistical Machine Translation. - Michael Paul; Hirofumi Yamamoto; Eiichiro Sumita; Satoshi Nakamura 001 (HLT-NAACL (Short Papers), 2009)

A Reordering Model Using a Source-Side Parse-Tree for Statistical Machine Translation. - Kei Hashimoto; Hirofumi Yamamoto; Hideo Okuma; Eiichiro Sumita; Keiichi Tokuda (IEICE Trans. Inf. Syst., 2009)

Imposing Constraints from the Source Tree on ITG Constraints for SMT. - Hirofumi Yamamoto; Hideo Okuma; Eiichiro Sumita (IEICE Trans. Inf. Syst., 2009)

Training Set Selection for Building Compact and Efficient Language Models. - Keiji Yasuda; Hirofumi Yamamoto; Eiichiro Sumita (IEICE Trans. Inf. Syst., 2009)

Constraining a Generative Word Alignment Model with Discriminative Output. - Chooi-Ling Goh; Taro Watanabe; Hirofumi Yamamoto; Eiichiro Sumita (IEICE Trans. Inf. Syst., 2010)

A 10-bit fast lock all-digital data recovery with CR oscillator reference for automotive network. - Hironobu Akita; Takahisa Yoshimoto; Hirofumi Yamamoto; Nobuaki Matsudaira; Shigeki Ohtsuka; Shinichirou Taguchi (ISCAS, 2013)

Lifetime estimation of SiC MOSFETs under high temperature reverse bias test. - Kosuke Uchida; Toru Hiyoshi; Taro Nishiguchi; Hirofumi Yamamoto; Masaki Furumai; Takashi Tsuno; Yasuki Mikamura (Microelectron. Reliab., 2016)

Forecasting Crypto-Asset Price Using Influencer Tweets. - Hirofumi Yamamoto; Hiroki Sakaji; Hiroyasu Matsushima; Yuki Yamashita; Kyohei Osawa; Kiyoshi Izumi; Takashi Shimada (AINA, 2019)

Free-Flow Tunnel Inspection Support Devices Aiming at Labor Saving of Visual Checking. - Kazunori Hosotani; Hirofumi Yamamoto (J. Robotics Mechatronics, 2020)

Dual-Cockpit Human and Hardware-in-the-Loop Test Bench for Autonomous Vehicle Development. - Divya Garikapati; Yiting Liu; Matt Brown; Tristan Littlehale; Hirofumi Yamamoto; Chen Bao (IEEE Trans. Intell. Veh., 2024)