Hiroshi G. Okuno

教授(任期付)

  • 4121 Citations
  • 31 h-Index
1974 …2019
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Research Output 1974 2019

2007
1 Citation (Scopus)

Evaluation of two simultaneous continuous speech recognition with ICA BSS and MFT-based ASR

Takeda, R., Yamamoto, S., Komatani, K., Ogata, T. & Okuno, H. G., 2007, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 4570 LNAI. p. 384-394 11 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 4570 LNAI).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Continuous speech recognition
Blind source separation
Independent component analysis
Independent Component Analysis
Speech Recognition
17 Citations (Scopus)

Experience-based imitation using RNNPB

Yokoya, R., Ogata, T., Tani, J., Komatani, K. & Okuno, H. G., 2007 Dec 1, In : Advanced Robotics. 21, 12, p. 1351-1367 17 p.

Research output: Contribution to journalArticle

Recurrent neural networks
Robots
Robot programming
18 Citations (Scopus)

Exploiting known sound source signals to improve ICA-based robot audition in speech separation and recognition

Takeda, R., Nakadai, K., Komatani, K., Ogata, T. & Okuno, H. G., 2007, IEEE International Conference on Intelligent Robots and Systems. p. 1757-1762 6 p. 4399297

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Independent component analysis
Audition
Acoustic waves
Robots
Blind source separation
16 Citations (Scopus)

Human-robot cooperation using quasi-symbols generated by RNNPB model

Ogata, T., Matsumoto, S., Tani, J., Komatani, K. & Okuno, H. G., 2007, Proceedings - IEEE International Conference on Robotics and Automation. p. 2156-2161 6 p. 4209404

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Human robot interaction
Recurrent neural networks
Robots
Experiments
7 Citations (Scopus)

Improving efficiency and scalability of model-based music recommender system based on incremental training

Yoshii, K., Goto, M., Komatani, K., Ogata, T. & Okuno, H. G., 2007, Proceedings of the 8th International Conference on Music Information Retrieval, ISMIR 2007. p. 89-94 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Recommender systems
Scalability
Hybrid systems
Acoustics
Music
49 Citations (Scopus)

Instrument identification in polyphonic music: Feature weighting to minimize influence of sound overlaps

Kitahara, T., Goto, M., Komatani, K., Ogata, T. & Okuno, H. G., 2007, In : Eurasip Journal on Advances in Signal Processing. 2007, 51979.

Research output: Contribution to journalArticle

Acoustic waves
Discriminant analysis
Acoustics
24 Citations (Scopus)

Integration and adaptation of harmonic and inharmonic models for separating polyphonic musical signals

Itoyama, K., Goto, M., Komatani, K., Ogata, T. & Okuno, H. G., 2007, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 1. 4217015

Research output: Chapter in Book/Report/Conference proceedingConference contribution

harmonics
Acoustic waves
acoustics
Equalizers
recording
8 Citations (Scopus)

Introducing utterance verification in spoken dialogue system to improve dynamic help generation for novice users

Komatani, K., Fukubayashi, Y., Ogata, T. & Okuno, H. G., 2007, Proceedings of the 8th SIGdial Workshop on Discourse and Dialogue. p. 202-205 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Spoken Dialogue Systems
Speech recognition
Automatic Speech Recognition
Estimate
Knowledge
7 Citations (Scopus)

Predicting object dynamics from visual images through active sensing experiences

Nishide, S., Ogata, T., Tani, J., Komatani, K. & Okuno, H. G., 2007, Proceedings - IEEE International Conference on Robotics and Automation. p. 2501-2506 6 p. 4209459

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Robots
Neural networks
Recurrent neural networks
Experiments
4 Citations (Scopus)

Real-time auditory and visual talker tracking through integrating EM algorithm and particle filter

Kim, H. D., Komatani, K., Ogata, T. & Okuno, H. G., 2007, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 4570 LNAI. p. 280-290 11 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 4570 LNAI).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Visual Tracking
Particle Filter
EM Algorithm
Acoustic waves
Sound Localization
58 Citations (Scopus)

Robust recognition of simultaneous speech by a mobile robot

Valin, J. M., Yamamoto, S., Rouat, J., Michaud, F., Nakadai, K. & Okuno, H. G., 2007 Aug, In : IEEE Transactions on Robotics. 23, 4, p. 742-752 11 p.

Research output: Contribution to journalArticle

Microphones
Mobile robots
Source separation
Speech recognition
Masks

Statistical machine translation using hierarchical phrase alignment

Watanabe, T., Imamura, K., Sumita, E. & Okuno, H. G., 2007 Jun 15, In : Systems and Computers in Japan. 38, 6, p. 70-79 10 p.

Research output: Contribution to journalArticle

Statistical Machine Translation
Alignment
Unit
Search Problems
Modeling

Topic estimation with domain extensibility for guiding user's out-of-grammar utterances in multi-domain spoken dialogue systems

Ikeda, S., Komatani, K., Ogata, T. & Okuno, H. G., 2007, International Speech Communication Association - 8th Annual Conference of the International Speech Communication Association, Interspeech 2007. Vol. 3. p. 2057-2060 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Spoken Dialogue Systems
Grammar
grammar
communication technology
Semantics
33 Citations (Scopus)

Two-way translation of compound sentences and arm motions by recurrent neural networks

Ogata, T., Murase, M., Tani, J., Komatani, K. & Okuno, H. G., 2007, IEEE International Conference on Intelligent Robots and Systems. p. 1858-1863 6 p. 4399265

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Recurrent neural networks
Linguistics
Robots
5 Citations (Scopus)

Vocal imitation using physical vocal tract model

Kanda, H., Ogata, T., Komatani, K. & Okuno, H. G., 2007, IEEE International Conference on Intelligent Robots and Systems. p. 1846-1851 6 p. 4399137

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Acoustic waves
Recurrent neural networks
Physical properties
2006
4 Citations (Scopus)

An error correction framework based on drum pattern periodicity for improving drum sound detection

Yoshii, K., Goto, M., Komatani, K., Ogata, T. & Okuno, H. G., 2006, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 5. 1661256

Research output: Chapter in Book/Report/Conference proceedingConference contribution

drums
Error correction
periodic variations
Acoustic waves
acoustics

A privacy-enhanced access control

Saito, T., Umesawa, K. & Okuno, H. G., 2006 May, In : Systems and Computers in Japan. 37, 5, p. 77-86 10 p.

Research output: Contribution to journalArticle

Access Control
Access control
Privacy
Servers
Certificate

Automatic feature weighting in automatic transcription of specified part in polyphonic music

Itoyama, K., Kitahara, T., Komatani, K., Ogata, T. & Okuno, H. G., 2006, ISMIR 2006 - 7th International Conference on Music Information Retrieval. p. 172-175 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Transcription
Musical instruments
Information retrieval
Time series
Genetic algorithms
49 Citations (Scopus)

Automatic synchronization between lyrics and music CD recordings based on Viterbi alignment of segregated vocal signals

Fujihara, H., Goto, M., Ogata, J., Komatani, K., Ogata, T. & Okuno, H. G., 2006, ISM 2006 - 8th IEEE International Symposium on Multimedia. p. 257-264 8 p. 4061176

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Synchronization
Acoustic waves
Transcription
2 Citations (Scopus)

Common acoustical pole estimation from multi-channel musical audio signals

Yoshioka, T., Hikichi, T., Miyoshi, M. & Okuno, H. G., 2006 Jan, In : IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E89-A, 1, p. 241-248 8 p.

Research output: Contribution to journalArticle

Pole
Poles
Envelope
Fine Structure
Equalizers
8 Citations (Scopus)

Dynamic help generation by estimating user's mental model in spoken dialogue systems

Fukubayashi, Y., Komatani, K., Ogata, T. & Okuno, H. G., 2006, INTERSPEECH 2006 and 9th International Conference on Spoken Language Processing, INTERSPEECH 2006 - ICSLP. Vol. 4. p. 1946-1949 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Testing
11 Citations (Scopus)

Experience based imitation using RNNPB

Yokoya, R., Ogata, T., Tani, J., Komatani, K. & Okuno, H. G., 2006, IEEE International Conference on Intelligent Robots and Systems. p. 3669-3674 6 p. 4058974

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Recurrent neural networks
Robots
Robot programming
26 Citations (Scopus)

F0 estimation method for singing voice in polyphonic audio signal based on statistical vocal model and viterbi search

Fujihara, H., Kitahara, T., Goto, M., Komatani, K., Ogata, T. & Okuno, H. G., 2006, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 5. 1661260

Research output: Chapter in Book/Report/Conference proceedingConference contribution

audio signals
harmonics
estimating
Trajectories
trajectories
6 Citations (Scopus)

Genetic algorithm-based improvement of robot hearing capabilities in separating and recognizing simultaneous speech signals

Yamamoto, S., Nakadai, K., Nakano, M., Tsujino, H., Valin, J. M., Takeda, R., Komatani, K., Ogata, T. & Okuno, H. G., 2006, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 4031 LNAI. p. 207-217 11 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 4031 LNAI).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Speech Signal
Audition
Hearing
Robot
Genetic algorithms
82 Citations (Scopus)

Hybrid collaborative and content-based music recommendation using probabilistic model with latent user preferences

Yoshii, K., Goto, M., Komatani, K., Ogata, T. & Okuno, H. G., 2006, ISMIR 2006 - 7th International Conference on Music Information Retrieval. p. 296-301 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Collaborative filtering
Bayesian networks
Experiments
Statistical Models
Music
1 Citation (Scopus)

Improving speech recognition of two simultaneous speech signals by integrating ICA BSS and automatic missing feature mask generation

Takeda, R., Yamamoto, SI., Komatoni, K., Ogata, T. & Okuno, H. G., 2006, INTERSPEECH 2006 and 9th International Conference on Spoken Language Processing, INTERSPEECH 2006 - ICSLP. Vol. 5. p. 2302-2305 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Blind source separation
Independent component analysis
Speech recognition
Masks
Acoustic waves
11 Citations (Scopus)

Instrogram: A new musical instrument recognition technique without using onset detection nor F0 estimation

Kitahara, T., Goto, M., Komatani, K., Ogata, T. & Okuno, H. G., 2006, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 5. 1661254

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Musical instruments
music
Hidden Markov models
spectrograms
Trajectories
11 Citations (Scopus)

Missing-feature based speech recognition for two simultaneous speech signals separated by ICA with a pair of humanoid ears

Takeda, R., Yamamoto, S., Komatani, K., Ogata, T. & Okuno, H. G., 2006, IEEE International Conference on Intelligent Robots and Systems. p. 878-885 8 p. 4058472

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Independent component analysis
Speech recognition
Acoustic waves
Robots
Audition
29 Citations (Scopus)

Multi-domain spoken dialogue system with extensibility and robustness against speech recognition errors

Komatani, K., Kanda, N., Nakano, M., Nakadai, K., Tsujino, H., Ogata, T. & Okuno, H. G., 2006, COLING/ACL 2006 - SIGdial06: 7th SIGdial Workshop on Discourse and Dialogue, Proceedings of the Workshop. p. 9-17 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Spoken Dialogue Systems
Speech Recognition
Speech recognition
Robustness
1 Citation (Scopus)

Multiple acoustical holography method for localization of objects in broad range using audible sound

Niwa, H., Ogata, T., Komatani, K. & Okuno, H. G., 2006, IEEE International Conference on Intelligent Robots and Systems. p. 1146-1151 6 p. 4058520

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Holography
Acoustic waves
Ultrasonics
Range finders
Sonar
16 Citations (Scopus)

Musical instrument recognizer "instrogram" and its application to music retrieval based on instrumentation similarity

Kitahara, T., Goto, M., Komatani, K., Ogata, T. & Okuno, H. G., 2006, ISM 2006 - 8th IEEE International Symposium on Multimedia. p. 265-272 8 p. 4061177

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Musical instruments
Information retrieval
Trajectories
50 Citations (Scopus)

Real-time robot audition system that recognizes simultaneous speech in the real world

Yamamoto, S., Nakadai, K., Nakano, M., Tsujino, H., Valin, J. M., Komatani, K., Ogata, T. & Okuno, H. G., 2006, IEEE International Conference on Intelligent Robots and Systems. p. 5333-5338 6 p. 4059274

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Audition
Robots
Speech recognition
Acoustic waves
Source separation
31 Citations (Scopus)

Real-time tracking of multiple sound sources by integration of in-room and robot-embedded microphone arrays

Nakadai, K., Nakajima, H., Murase, M., Okuno, H. G., Hasegawa, Y. & Tsujino, H., 2006, IEEE International Conference on Intelligent Robots and Systems. p. 852-859 8 p. 4058468

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Microphones
Acoustic waves
Robots
Beamforming
3 Citations (Scopus)

Recognition of simultaneous speech by estimating reliability of separated signals for robot audition

Yamamoto, S., Takeda, R., Nakadai, K., Nakano, M., Tsujino, H., Valin, J. M., Komatani, K., Ogata, T. & Okuno, H. G., 2006, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 4099 LNAI. p. 484-494 11 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 4099 LNAI).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Source separation
Source Separation
Audition
Hearing
Robot
1 Citation (Scopus)

Robust decomposition of inverse filter of channel and prediction error filter of speech signal for dereverberation

Yoshioka, T., Hikichi, T., Miyoshi, M. & Okuno, H. G., 2006, European Signal Processing Conference.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Decomposition
33 Citations (Scopus)

Robust tracking of multiple sound sources by spatial integration of room and robot microphone arrays

Nakadai, K., Nakajima, H., Murase, M., Kaijiri, S., Yamada, K., Nakamura, T., Hasegawa, Y., Okuno, H. G. & Tsujino, H., 2006, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 4. 1661122

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Microphones
microphones
robots
rooms
Acoustic waves
6 Citations (Scopus)

Speaker identification under noisy environments by using harmonic structure extraction and reliable frame weighting

Fujihara, H., Kitahara, T., Goto, M., Komatani, K., Ogata, T. & Okuno, H. G., 2006, INTERSPEECH 2006 and 9th International Conference on Spoken Language Processing, INTERSPEECH 2006 - ICSLP. Vol. 3. p. 1459-1462 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Acoustic waves

Special section on new technologies and their applications of the Internet IV

Matsukata, J., Iida, I., Ichii, S., Imaizumi, T., Umemura, K., Esaki, H., Okamoto, M., Okuno, H. G., Kayama, M., Kawamura, R., Goto, K., Goto, S., Sakata, S., Sunahara, H., Tashiro, S., Tan, Y., Tsuruoka, Y., Teraoka, F., Terada, M., Nakamura, O. & 7 others, Nakayama, M., Nishimura, K., Fujikawa, K., Horikawa, K., Miyake, S., Yamazaki, K. & Yoshida, K., 2006 Dec, In : IEICE Transactions on Information and Systems. E89-D, 12, p. 2821 1 p.

Research output: Contribution to journalArticle

Using multiple edit distances to automatically grade outputs from machine translation systems

Akiba, Y., Imamura, K., Sumita, E., Nakaiwa, H., Yamamoto, S. & Okuno, H. G., 2006, In : IEEE Transactions on Audio, Speech and Language Processing. 14, 2, p. 393-401 9 p.

Research output: Contribution to journalArticle

machine translation
grade
output
Decision trees
evaluation
2005
12 Citations (Scopus)

A computational model of monkey cortical grating cells

Lourens, T., Barakova, E., Okuno, H. G. & Tsujino, H., 2005 Jan, In : Biological Cybernetics. 92, 1, p. 61-70 10 p.

Research output: Contribution to journalArticle

Haplorhini
Textures
Tile
Gastrin-Secreting Cells
Experiments
28 Citations (Scopus)

A two-layer model for behavior and dialogue planning in conversational service robots

Nakano, M., Hasegawa, Y., Nakadai, K., Nakamura, T., Takeuchi, J., Torii, T., Tsujino, H., Kanda, N. & Okuno, H. G., 2005, 2005 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS. p. 1542-1548 7 p. 1545198

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Robots
Planning

Automatic grader of MT outputs in colloquial style by using multiple edit distances

Akiba, Y., Imamura, K., Sumita, E., Nakaiwa, H., Yamamoto, S. & Okuno, H. G., 2005, In : Transactions of the Japanese Society for Artificial Intelligence. 20, 3, p. 139-148 10 p.

Research output: Contribution to journalArticle

Decision trees
1 Citation (Scopus)

Blind estimation of room resonances using popular, classical, and jazz music

Yoshioka, T., Hikichi, T., Miyoshi, M. & Okuno, H. G., 2005, Audio Engineering Society - 118th Convention Spring Preprints 2005. Vol. 3. p. 1411-1419 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

music
Music
rooms
Resonance Frequency
Equalization
12 Citations (Scopus)

Contextual constraints based on dialogue models in database search task for spoken dialogue systems

Komatani, K., Kanda, N., Ogata, T. & Okuno, H. G., 2005, 9th European Conference on Speech Communication and Technology. p. 877-880 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Speech recognition
Decision trees
9 Citations (Scopus)

Distance-based dynamic interaction of humanoid robot with multiple people

Tasaki, T., Matsumoto, S., Ohba, H., Toda, M., Komatani, K., Ogata, T. & Okuno, H. G., 2005, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 3533 LNAI. p. 111-120 10 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 3533 LNAI).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Humanoid Robot
Robot
Robots
Interaction
Modality
5 Citations (Scopus)

Dynamic communication of humanoid robot with multiple people based on interaction distance

Tasaki, T., Matsumoto, S., Ohba, H., Yamamoto, S., Toda, M., Komatani, K., Ogata, T. & Okuno, H. G., 2005, In : Transactions of the Japanese Society for Artificial Intelligence. 20, 3, p. 209-219 11 p.

Research output: Contribution to journalArticle

Robots
Communication
Human robot interaction
Demonstrations
1 Citation (Scopus)

Empirical verification of Meaning-Game-based generalization of centering theory with large Japanese corpus

Shiramatsu, S., Komatani, K., Miyata, T., Hasida, K. & Okuno, H. G., 2005, PACLIC 19 - Proceedings of the 19th Pacific Asia Conference on Language, Information and Computation.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Game theory
Linguistics
Communication
Centering Theory
Entity
49 Citations (Scopus)

Enhanced robot speech recognition based on microphone array source separation and missing feature theory

Yamamoto, S., Valin, J. M., Nakadai, K., Rouat, J., Michaud, F., Ogata, T. & Okuno, H. G., 2005, Proceedings - IEEE International Conference on Robotics and Automation. Vol. 2005. p. 1477-1482 6 p. 1570323

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Source separation
Microphones
Speech recognition
Acoustic waves
Robots
15 Citations (Scopus)

Extracting multi-modal dynamics of objects using RNNPB

Ogata, T., Ohba, H., Tani, J., Komatani, K. & Okuno, H. G., 2005, 2005 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS. p. 160-165 6 p. 1544975

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Recurrent neural networks
Robots
Neurons
Trajectories
Acoustic waves