| 2018 | COLING | Multi-task and Multi-lingual Joint Learning of Neural Lexical Utterance Classification based on Partially-shared Modeling. | Ryo Masumura, Tomohiro Tanaka, Ryuichiro Higashinaka, Hirokazu Masataki, Yushi Aono |
| 2018 | ICASSP | Neural Confnet Classification: Fully Neural Network Based Spoken Utterance Classification Using Word Confusion Networks. | Ryo Masumura, Yusuke Ijima, Taichi Asami, Hirokazu Masataki, Ryuichiro Higashinaka |
| 2018 | Interspeech | Role Play Dialogue Aware Language Models Based on Conditional Hierarchical Recurrent Encoder-Decoder. | Ryo Masumura, Tomohiro Tanaka, Atsushi Ando, Hirokazu Masataki, Yushi Aono |
| 2018 | Interspeech | Neural Error Corrective Language Models for Automatic Speech Recognition. | Tomohiro Tanaka, Ryo Masumura, Hirokazu Masataki, Yushi Aono |
| 2017 | ICASSP | Domain adaptation of DNN acoustic models using knowledge distillation. | Taichi Asami, Ryo Masumura, Yoshikazu Yamaguchi, Hirokazu Masataki, Yushi Aono |
| 2017 | ICASSP | Parallel phonetically aware DNNs and LSTM-RNNS for frame-by-frame discriminative modeling of spoken language identification. | Ryo Masumura, Taichi Asami, Hirokazu Masataki, Yushi Aono |
| 2017 | IJCNLP | Hyperspherical Query Likelihood Models with Word Embeddings. | Ryo Masumura, Taichi Asami, Hirokazu Masataki, Kugatsu Sadamitsu, Kyosuke Nishida, Ryuichiro Higashinaka |
| 2017 | Interspeech | Online End-of-Turn Detection from Speech Based on Stacked Time-Asynchronous Sequential Networks. | Ryo Masumura, Taichi Asami, Hirokazu Masataki, Ryo Ishii, Ryuichiro Higashinaka |
| 2016 | Interspeech | Language Identification Based on Generative Modeling of Posteriorgram Sequences Extracted from Frame-by-Frame DNNs and LSTM-RNNs. | Ryo Masumura, Taichi Asami, Hirokazu Masataki, Yushi Aono, Sumitaka Sakauchi |
| 2015 | EMNLP | Hierarchical Latent Words Language Models for Robust Modeling to Out-Of Domain Tasks. | Ryo Masumura, Taichi Asami, Takanobu Oba, Hirokazu Masataki, Sumitaka Sakauchi, Akinori Ito |
| 2015 | Interspeech | Agreement and disagreement utterance detection in conversational speech by extracting and integrating local features. | Atsushi Ando, Taichi Asami, Manabu Okamoto, Hirokazu Masataki, Sumitaka Sakauchi |
| 2015 | Interspeech | Training data selection for acoustic modeling via submodular optimization of joint kullback-leibler divergence. | Taichi Asami, Ryo Masumura, Hirokazu Masataki, Manabu Okamoto, Sumitaka Sakauchi |
| 2015 | Interspeech | Combinations of various language model technologies including data expansion and adaptation in spontaneous speech recognition. | Ryo Masumura, Taichi Asami, Takanobu Oba, Hirokazu Masataki, Sumitaka Sakauchi, Akinori Ito |
| 2015 | Interspeech | Latent words recurrent neural network language models. | Ryo Masumura, Taichi Asami, Takanobu Oba, Hirokazu Masataki, Sumitaka Sakauchi, Akinori Ito |
| 2014 | ICASSP | Role play dialogue topic model for language model adaptation in multi-party conversation speech recognition. | Ryo Masumura, Takanobu Oba, Hirokazu Masataki, Osamu Yoshioka, Satoshi Takahashi |
| 2014 | Interspeech | Read and spontaneous speech classification based on variance of GMM supervectors. | Taichi Asami, Ryo Masumura, Hirokazu Masataki, Sumitaka Sakauchi |
| 2014 | Interspeech | Mixture of latent words language models for domain adaptation. | Ryo Masumura, Taichi Asami, Takanobu Oba, Hirokazu Masataki, Sumitaka Sakauchi |
| 2013 | ICASSP | Use of latent words language models in ASR: A sampling-based implementation. | Ryo Masumura, Hirokazu Masataki, Takanobu Oba, Osamu Yoshioka, Satoshi Takahashi |
| 2013 | Interspeech | Unsupervised confidence calibration using examples of recognized words and their contexts. | Taichi Asami, Satoshi Kobashikawa, Hirokazu Masataki, Osamu Yoshioka, Satoshi Takahashi |
| 2013 | Interspeech | Viterbi decoding for latent words language models using gibbs sampling. | Ryo Masumura, Hirokazu Masataki, Takanobu Oba, Osamu Yoshioka, Satoshi Takahashi |
| 2013 | Interspeech | Unsupervised discriminative language modeling using error rate estimator. | Takanobu Oba, Atsunori Ogawa, Takaaki Hori, Hirokazu Masataki, Atsushi Nakamura |
| 2012 | Interspeech | Speech Data Clustering Based on Phoneme Error Trend for Unsupervised Acoustic Model Adaptation. | Taichi Asami, Satoshi Kobashikawa, Hirokazu Masataki, Osamu Yoshioka, Satoshi Takahashi |
| 2012 | Interspeech | Efficient Beam Width Control to Suppress Excessive Speech Recognition Computation Time Based on Prior Score Range Normalization. | Satoshi Kobashikawa, Takaaki Hori, Yoshikazu Yamaguchi, Taichi Asami, Hirokazu Masataki, Satoshi Takahashi |
| 2012 | Interspeech | Automatic Vocabulary Adaptation Based on Semantic Similarity and Speech Recognition Confidence Measure. | Shoko Yamahata, Yoshikazu Yamaguchi, Atsunori Ogawa, Hirokazu Masataki, Osamu Yoshioka, Satoshi Takahashi |
| 2011 | ICASSP | Extracting call-reason segments from contact center dialogs by using automatically acquired boundary expressions. | Takaaki Fukutomi, Satoshi Kobashikawa, Taichi Asami, Tsubasa Shinozaki, Hirokazu Masataki, Satoshi Takahashi |
| 2011 | Interspeech | Spoken Document Confidence Estimation Using Contextual Coherence. | Taichi Asami, Narichika Nomoto, Satoshi Kobashikawa, Yoshikazu Yamaguchi, Hirokazu Masataki, Satoshi Takahashi |
| 2011 | Interspeech | Morpheme Conversion for Connecting Speech Recognizer and Language Analyzers in Unsegmented Languages. | Kenji Imamura, Tomoko Izumi, Kugatsu Sadamitsu, Kuniko Saito, Satoshi Kobashikawa, Hirokazu Masataki |
| 2011 | Interspeech | Anger Recognition in Spoken Dialog Using Linguistic and Para-Linguistic Information. | Narichika Nomoto, Masafumi Tamoto, Hirokazu Masataki, Osamu Yoshioka, Satoshi Takahashi |
| 2010 | Interspeech | Efficient data selection for speech recognition based on prior confidence estimation using speech and context independent models. | Satoshi Kobashikawa, Taichi Asami, Yoshikazu Yamaguchi, Hirokazu Masataki, Satoshi Takahashi |
| 2010 | Interspeech | Detection of anger emotion in dialog speech using prosody feature and temporal relation of utterances. | Narichika Nomoto, Hirokazu Masataki, Osamu Yoshioka, Satoshi Takahashi |
| 1997 | ICASSP | Task adaptation using MAP estimation in N-gram language modeling. | Hirokazu Masataki, Yoshinori Sagisaka, Kazuya Hisaki, Tatsuya Kawahara |
| 1996 | ICASSP | Variable-order N-gram generation by word-class splitting and consecutive word grouping. | Hirokazu Masataki, Yoshinori Sagisaka |
| 1996 | ICASSP | Spontaneous dialogue speech recognition using cross-word context constrained word graphs. | Tohru Shimizu, Hirofumi Yamamoto, Hirokazu Masataki, Shoichi Matsunaga, Yoshinori Sagisaka |