Seiichi Nakagawa

ORCID

Publication Activity (10 Years)

Years Active: 1985-2024
Publications (10 Years): 32

Top Venues

Publications

Khomdet Phapatanaburi, Longbiao Wang, Meng Liu, Seiichi Nakagawa, Talit Jumphoo, Peerapong Uthansakul
Significance of relative phase features for shouted and normal speech classification. EURASIP J. Audio Speech Music. Process. 2024 (1) (2024)
Kazumasa Yamamoto, Haruhiko Banno, Haruki Sakurai, Toichiro Adachi, Seiichi Nakagawa
A Study of Speech Recognition, Speech Translation, and Speech Summarization of TED English Lectures. GCCE (2023)
Yoshiki Niimura, Jun Takemoto, Atsuhiko Kai, Seiichi Nakagawa
Attention-based CNN and Relative Phase Feature Modeling for Improved Imagined Speech Recognition. APSIPA ASC (2023)
Kento Masuda, Yui Hayakawa, Kazumasa Yamamoto, Seiichi Nakagawa
Summarization of Spoken Lectures Based on MMR Method and Important/Unimportant Sentence Classification Using BERT. GCCE (2022)
Lili Guo, Longbiao Wang, Jianwu Dang, Eng Siong Chng, Seiichi Nakagawa
Learning affective representations based on magnitude and dynamic relative phase information for speech emotion recognition. Speech Commun. 136 (2022)
Kazumasa Yamamoto, Akinori Ishiki, Seiichi Nakagawa
Improvement of Elderly Speech Recognition Using Gammatone Filterbank Adaptation. GCCE (2021)
Ryota Sakai, Atsuhiko Kai, Seiichi Nakagawa
Classification of Imagined and Heard Speech Using Amplitude Spectrum and Relative Phase of EEG. LifeTech (2021)
Meng Liu, Longbiao Wang, Jianwu Dang, Kong Aik Lee, Seiichi Nakagawa
Replay attack detection using variable-frequency resolution phase and magnitude features. Comput. Speech Lang. 66 (2021)
Kazumasa Yamamoto, Ryo Yamamoto, Seiichi Nakagawa
Effectiveness of Fine Linear Frequency Spectral Feature for Acoustic Event Detection. GCCE (2020)
Kazumasa Yamamoto, Akira Tamagawa, Seiichi Nakagawa
Evaluation of Real Robot Agent Interface for Spoken Dialogue System. GCCE (2019)
Zeyan Oo, Longbiao Wang, Khomdet Phapatanaburi, Meng Liu, Seiichi Nakagawa, Masahiro Iwahashi, Jianwu Dang
Replay attack detection with auditory filter-based relative phase features. EURASIP J. Audio Speech Music. Process. 2019 (2019)
Meng Liu, Longbiao Wang, Jianwu Dang, Seiichi Nakagawa, Haotian Guan, Xiangang Li
Replay Attack Detection Using Magnitude and Phase Information with Attention-based Adaptive Filters. ICASSP (2019)
Hiroshi Seki, Kazumasa Yamamoto, Tomoyosi Akiba, Seiichi Nakagawa
Discriminative Learning of Filterbank Layer within Deep Neural Network Based Speech Recognition for Speaker Adaptation. IEICE Trans. Inf. Syst. (2) (2019)
Khomdet Phapatanaburi, Longbiao Wang, Seiichi Nakagawa, Masahiro Iwahashi
Replay Attack Detection Using Linear Prediction Analysis-Based Relative Phase Features. IEEE Access 7 (2019)
Meng Liu, Longbiao Wang, Zeyan Oo, Jianwu Dang, Dongbo Li, Seiichi Nakagawa
Replay Attacks Detection Using Phase and Magnitude Features with Various Frequency Resolutions. ISCSLP (2018)
Zeyan Oo, Longbiao Wang, Khomdet Phapatanaburi, Masahiro Iwahashi, Seiichi Nakagawa, Jianwu Dang
Phase and reverberation aware DNN for distant-talking speech enhancement. Multim. Tools Appl. 77 (14) (2018)
Meng Ge, Longbiao Wang, Seiichi Nakagawa, Yuta Kawakami, Jianwu Dang, Xiangang Li
Pitch Synchronized Relative Phase with Peak Error Detection For Noise-robust Speaker Recognition. ISCSLP (2018)
Dongbo Li, Longbiao Wang, Jianwu Dang, Meng Liu, Zeyan Oo, Seiichi Nakagawa, Haotian Guan, Xiangang Li
Multiple Phase Information Combination for Replay Attacks Detection. INTERSPEECH (2018)
Hiroshi Seki, Kazumasa Yamamoto, Tomoyosi Akiba, Seiichi Nakagawa
Rapid Speaker Adaptation of Neural Network Based Filterbank Layer for Automatic Speech Recognition. SLT (2018)
Hiroshi Kibishi, Seiichi Nakagawa
Speech Recognition for English Uttered by Japanese with Various Proficiency Levels. GCCE (2018)
Longbiao Wang, Seiichi Nakagawa, Zhaofeng Zhang, Yohei Yoshida, Yuta Kawakami
Spoofing Speech Detection Using Modified Relative Phase Information. IEEE J. Sel. Top. Signal Process. 11 (4) (2017)
Longbiao Wang, Khomdet Phapatanaburi, Zeyan Oo, Seiichi Nakagawa, Masahiro Iwahashi, Jianwu Dang
Phase aware deep neural network for noise robust voice activity detection. ICME (2017)
Longbiao Wang, Seiichi Nakagawa, Jianwu Dang, Jianguo Wei, Tongtong Shen, Lantian Li, Thomas Fang Zheng
Pseudo-pitch-synchronized phase information extraction and its application for robust speaker recognition. GCCE (2017)
Hiroshi Seki, Kazumasa Yamamoto, Seiichi Nakagawa
A deep neural network integrated with filterbank learning for speech recognition. ICASSP (2017)
Shoko Tsujimura, Kazumasa Yamamoto, Seiichi Nakagawa
Automatic Explanation Spot Estimation Method Targeted at Text and Figures in Lecture Slides. INTERSPEECH (2017)
Kazumasa Yamamoto, Chikara Ishikawa, Koya Sahashi, Seiichi Nakagawa
Detection of overlapping acoustic events based on NMF with shared basis vectors. GCCE (2017)
Khomdet Phapatanaburi, Longbiao Wang, Zeyan Oo, Weifeng Li, Seiichi Nakagawa, Masahiro Iwahashi
Noise robust voice activity detection using joint phase and magnitude based feature enhancement. J. Ambient Intell. Humaniz. Comput. 8 (6) (2017)
Dairoku Kawai, Kazumasa Yamamoto, Seiichi Nakagawa
Lyric recognition in monophonic singing using pitch-dependent DNN. ICASSP (2017)
Dairoku Kawai, Kazumasa Yamamoto, Seiichi Nakagawa
Speech analysis of sung-speech and lyric recognition in monophonic singing. ICASSP (2016)
Zeyan Oo, Yuta Kawakami, Longbiao Wang, Seiichi Nakagawa, Xiong Xiao, Masahiro Iwahashi
DNN-Based Amplitude and Phase Feature Enhancement for Noise Robust Speaker Identification. INTERSPEECH (2016)
Masaaki Takebe, Kazumasa Yamamoto, Seiichi Nakagawa
Investigation of glottal features and annotation procedures for speech emotion recognition. APSIPA (2016)
Norioki Goto, Kazumasa Yamamoto, Seiichi Nakagawa
Domain adaptation of a speech translation system for lectures by utilizing frequently appearing parallel phrases in-domain. APSIPA (2016)
Naoaki Hashimoto, Kazumasa Yamamoto, Seiichi Nakagawa
Speech recognition for mixed speech and music by NMF using various cost functions and noise adaptive training methods. APSIPA (2015)
Nagisa Sakamoto, Kazumasa Yamamoto, Seiichi Nakagawa
Combination of syllable based N-gram search and word search for spoken term detection through spoken queries and IV/OOV classification. ASRU (2015)
Longbiao Wang, Yohei Yoshida, Yuta Kawakami, Seiichi Nakagawa
Relative phase information for detecting human speech and spoofed speech. INTERSPEECH (2015)
Hiroshi Seki, Kazumasa Yamamoto, Seiichi Nakagawa
Deep neural network based acoustic model using speaker-class information for short time utterance. APSIPA (2015)
Akihiro Abe, Kazumasa Yamamoto, Seiichi Nakagawa
Robust speech recognition using DNN-HMM acoustic model combining noise-aware training with spectral subtraction. INTERSPEECH (2015)
Yuta Kawakami, Longbiao Wang, Atsuhiko Kai, Seiichi Nakagawa
Speaker Identification by Combining Various Vocal Tract and Vocal Source Features. TSD (2014)
Aditya Arie Nugraha, Kazumasa Yamamoto, Seiichi Nakagawa
Single-channel dereverberation by feature mapping using cascade neural networks for robust distant speaker identification and speech recognition. EURASIP J. Audio Speech Music. Process. 2014 (2014)
Naoaki Hashimoto, Shoichi Nakano, Kazumasa Yamamoto, Seiichi Nakagawa
Speech recognition based on Itakura-Saito divergence and dynamics/sparseness constraints from mixed sound of speech and music by non-negative matrix factorization. INTERSPEECH (2014)
Nagisa Sakamoto, Kazumasa Yamamoto, Seiichi Nakagawa
Sopoken Term Detection Based on a Syllable N-gram Index at the NTCIR-11 SpokenQuery&Doc Task. NTCIR (2014)
Ryo Kawaguchi, Masatoshi Tsuchiya, Seiichi Nakagawa
Elimination of person names in spoken documents for privacy protection. APSIPA (2014)
Norihide Kitaoka, Daisuke Enami, Seiichi Nakagawa
Effect of acoustic and linguistic contexts on human and machine speech recognition. Comput. Speech Lang. 28 (3) (2014)
Yuki Todo, Ryota Nishimura, Kazumasa Yamamoto, Seiichi Nakagawa
Development and Evaluation of Spoken Dialog Systems with One or Two Agents through Two Domains. TSD (2013)
Shoichi Nakano, Kazumasa Yamamoto, Seiichi Nakagawa
Fast NMF based approach and VQ based approach using MFCC distance measure for speech recognition from mixed sound. APSIPA (2013)
Nagisa Sakamoto, Seiichi Nakagawa
Robust/fast out-of-vocabulary spoken term detection by N-gram index with exact distance through text/speech input. APSIPA (2013)
Nagisa Sakamoto, Seiichi Nakagawa
Spoken Term Detection by N-gram Index with Exact Distance for NTCIR-SpokenDoc2. NTCIR (2013)
Yuta Kawakami, Longbiao Wang, Seiichi Nakagawa
Speaker identification using pseudo pitch synchronized phase information in noisy environments. APSIPA (2013)
Seiichi Nakagawa, Keisuke Iwami, Yasuhisa Fujii, Kazumasa Yamamoto
A robust/fast spoken term detection method based on a syllable n-gram index with a distance metric. Speech Commun. 55 (3) (2013)
Aditya Arie Nugraha, Kazumasa Yamamoto, Seiichi Nakagawa
Single channel dereverberation method in log-melspectral domain using limited stereo data for distant speaker identification. APSIPA (2013)
Yuki Todo, Ryota Nishimura, Kazumasa Yamamoto, Seiichi Nakagawa
Development and evaluation of spoken dialog systems with one or two agents. INTERSPEECH (2013)
Tomoyosi Akiba, Hiromitsu Nishizaki, Kiyoaki Aikawa, Xinhui Hu, Yoshiaki Itoh, Tatsuya Kawahara, Seiichi Nakagawa, Hiroaki Nanjo, Yoichi Yamashita
Overview of the NTCIR-10 SpokenDoc-2 Task. NTCIR (2013)
Hiroshi Kibishi, Seiichi Nakagawa
An online evaluation system for English pronunciation intelligibility for Japanese English learners. APSIPA (2012)
Shoichi Nakano, Kazumasa Yamamoto, Seiichi Nakagawa
Fast NMF based approach and improved VQ based approach for speech recognition from mixed sound. APSIPA (2012)
Welly Naptali, Masatoshi Tsuchiya, Seiichi Nakagawa
Class-Based N-Gram Language Model for New Words Using Out-of-Vocabulary to In-Vocabulary Similarity. IEICE Trans. Inf. Syst. (9) (2012)
Akio Kobayashi, Takahiro Oku, Toru Imai, Seiichi Nakagawa
Risk-Based Semi-Supervised Discriminative Language Modeling for Broadcast Transcription. IEICE Trans. Inf. Syst. (11) (2012)
Daisuke Enami, Faqiang Zhu, Kazumasa Yamamoto, Seiichi Nakagawa
Soft-clustering technique for training data in Age-and gender-independent speech recognition. APSIPA (2012)
Ikuya Hirano, Longbiao Wang, Atsuhiko Kai, Seiichi Nakagawa
On the use of phase information-based joint factor analysis for speaker verification under channel mismatch condition. APSIPA (2012)
Yasuhisa Fujii, Kazumasa Yamamoto, Seiichi Nakagawa
Hidden Conditional Neural Fields for Continuous Phoneme Speech Recognition. IEICE Trans. Inf. Syst. (8) (2012)
Kengo Ohta, Masatoshi Tsuchiya, Seiichi Nakagawa
Developing Partially-Transcribed Speech Corpus from Edited Transcriptions. LREC (2012)
Yasuhisa Fujii, Kazumasa Yamamoto, Seiichi Nakagawa
Improving the Readability of ASR Results for Lectures Using Multiple Hypotheses and Sentence-Level Knowledge. IEICE Trans. Inf. Syst. (4) (2012)
Seiichi Nakagawa, Longbiao Wang, Shinji Ohtsuka
Speaker Identification and Verification by Combining MFCC and Phase Information. IEEE Trans. Speech Audio Process. 20 (4) (2012)
Akio Kobayashi, Takahiro Oku, Toru Imai, Seiichi Nakagawa
Multi-objective optimization for semi-supervised discriminative language modeling. ICASSP (2012)
Seiichi Nakagawa, Erdenebat Turmunkh, Hiroshi Kibishi, Kengo Ohta, Yasuhisa Fujii, Masatoshi Tsuchiya, Kazumasa Yamamoto
Development of large vocabulary continuous speech recognition system for Mongolian language. SLTU (2012)
Welly Naptali, Masatoshi Tsuchiya, Seiichi Nakagawa
Topic-Dependent-Class-Based $n$-Gram Language Model. IEEE Trans. Speech Audio Process. 20 (5) (2012)
Kengo Ohta, Masatoshi Tsuchiya, Seiichi Nakagawa
Detection of precisely transcribed parts from inexact transcribed corpus. ASRU (2011)
Shoichi Nakano, Kazumasa Yamamoto, Seiichi Nakagawa
Speech Recognition in Mixed Sound of Speech and Music Based on Vector Quantization and Non-Negative Matrix Factorization. INTERSPEECH (2011)
Keisuke Iwami, Yasuhisa Fujii, Kazumasa Yamamoto, Seiichi Nakagawa
Efficient out-of-vocabulary term detection by n-gram array indices with distance from a syllable lattice. ICASSP (2011)
Akio Kobayashi, Takahiro Oku, Shinichi Homma, Toru Imai, Seiichi Nakagawa
Lattice-Based Risk Minimization Training for Unsupervised Language Model Adaptation. INTERSPEECH (2011)
Yasuhisa Fujii, Kazumasa Yamamoto, Seiichi Nakagawa
Automatic speech recognition using Hidden Conditional Neural Fields. ICASSP (2011)
Keisuke Iwami, Seiichi Nakagawa
High speed spoken term detection by combination of n-gram array of a syllable lattice and LVCSR result for NTCIR-SpokenDoc. NTCIR (2011)
Yasuhisa Fujii, Kazumasa Yamamoto, Seiichi Nakagawa
Hidden Boosted MMI and Hierarchical State Posterior Feature for Automatic Speech Recognition Based on Hidden Conditional Neural Fields. INTERSPEECH (2011)
Hiroshi Kibishi, Seiichi Nakagawa
New Feature Parameters for Pronunciation Evaluation in English Presentations at International Conferences. INTERSPEECH (2011)
Longbiao Wang, Norihide Kitaoka, Seiichi Nakagawa
Distant-Talking Speech Recognition Based on Spectral Subtraction by Multi-Channel LMS Algorithm. IEICE Trans. Inf. Syst. (3) (2011)
Welly Naptali, Masatoshi Tsuchiya, Seiichi Nakagawa
Topic dependent class based language model evaluation on automatic speech recognition. SLT (2010)
Kuniaki Hirabayashi, Seiichi Nakagawa
Automatic evaluation of English pronunciation by Japanese speakers using various acoustic features and pattern recognition techniques. INTERSPEECH (2010)
Keisuke Iwami, Yasuhisa Fujii, Kazumasa Yamamoto, Seiichi Nakagawa
Out-of-vocabulary term detection by n-gram array with distance from continuous syllable recognition results. SLT (2010)
Welly Naptali, Masatoshi Tsuchiya, Seiichi Nakagawa
Topic-Dependent Language Model with Voting on Noun History. ACM Trans. Asian Lang. Inf. Process. 9 (2) (2010)
Longbiao Wang, Kazue Minami, Kazumasa Yamamoto, Seiichi Nakagawa
Speaker Recognition by Combining MFCC and Phase Information in Noisy Conditions. IEICE Trans. Inf. Syst. (9) (2010)
Longbiao Wang, Kazue Minami, Kazumasa Yamamoto, Seiichi Nakagawa
Speaker identification by combining MFCC and phase information in noisy environments. ICASSP (2010)
Welly Naptali, Masatoshi Tsuchiya, Seiichi Nakagawa
Integration of cache-based model and topic dependent class model with soft clustering and soft voting. INTERSPEECH (2010)
Noboru Kanedera, Tetsuo Funada, Seiichi Nakagawa
Lecture subtopic retrieval by retrieval keyword expansion using subordinate concept. INTERSPEECH (2010)
Makoto Sakai, Norihide Kitaoka, Yuya Hattori, Seiichi Nakagawa, Kazuya Takeda
Evaluation of Combinational Use of Discriminant Analysis-Based Acoustic Feature Transformation and Discriminative Training. IEICE Trans. Inf. Syst. (2) (2010)
Kazumasa Yamamoto, Seiichi Nakagawa
Evaluation of Privacy Protection Techniques for Speech Signals. IPMU (2) (2010)
Yasuhisa Fujii, Kazumasa Yamamoto, Seiichi Nakagawa
Improving the readability of class lecture ASR results using a confusion network. INTERSPEECH (2010)
Yoshiaki Itoh, Hiromitsu Nishizaki, Xinhui Hu, Hiroaki Nanjo, Tomoyosi Akiba, Tatsuya Kawahara, Seiichi Nakagawa, Tomoko Matsui, Yoichi Yamashita, Kiyoaki Aikawa
Constructing Japanese test collections for spoken term detection. INTERSPEECH (2010)
Alberto Yoshihiro Nakano, Seiichi Nakagawa, Kazumasa Yamamoto
Distant Speech Recognition Using a Microphone Array Network. IEICE Trans. Inf. Syst. (9) (2010)
Kazumasa Yamamoto, Eiichi Sueyoshi, Seiichi Nakagawa
Speech recognition using long-term phase information. INTERSPEECH (2010)
Ryota Nishimura, Seiichi Nakagawa
Response timing generation and response type selection for a spontaneous spoken dialog system. ASRU (2009)
Welly Naptali, Masatoshi Tsuchiya, Seiichi Nakagawa
Topic dependent language model based on topic voting on noun history. INTERSPEECH (2009)
Alberto Yoshihiro Nakano, Seiichi Nakagawa, Kazumasa Yamamoto
Estimating the position and orientation of an acoustic source with a microphone array network. INTERSPEECH (2009)
Kengo Ohta, Masatoshi Tsuchiya, Seiichi Nakagawa
Effective use of pause information in language modelling for speech recognition. INTERSPEECH (2009)
Welly Naptali, Masatoshi Tsuchiya, Seiichi Nakagawa
Language Model Based on Word Order Sensitive Matrix Representation in Latent Semantic Analysis for Speech Recognition. CSIE (7) (2009)
Kazumasa Yamamoto, Seiichi Nakagawa
Privacy Protection for Speech Information. IAS (2009)
Longbiao Wang, Shinji Ohtsuka, Seiichi Nakagawa
High improvement of speaker identification and verification by combining MFCC and phase information. ICASSP (2009)
Masatoshi Tsuchiya, Shoko Endo, Seiichi Nakagawa
Analysis and Robust Extraction of Changing Named Entities. NEWS@IJCNLP (2009)
Satoru Kogure, Hiromitsu Nishizaki, Masatoshi Tsuchiya, Kazumasa Yamamoto, Shingo Togashi, Seiichi Nakagawa
Speech recognition performance of CJLC: corpus of Japanese lecture contents. INTERSPEECH (2008)
Makoto Sakai, Norihide Kitaoka, Seiichi Nakagawa
Linear Discriminant Analysis Using a Generalized Mean of Class Covariances and Its Application to Speech Recognition. IEICE Trans. Inf. Syst. (3) (2008)
Shingo Togashi, Seiichi Nakagawa
A browsing system for classroom lecture speech. INTERSPEECH (2008)
Masatoshi Tsuchiya, Satoru Kogure, Hiromitsu Nishizaki, Kengo Ohta, Seiichi Nakagawa
Developing Corpus of Japanese Classroom Lecture Speech Contents. LREC (2008)

Seiichi Nakagawa.css-eqlu8i{font-size:small;padding-left:4px;}

Publication Activity (10 Years)

Top Topics

Top Venues

Seiichi Nakagawa