Koji Okabe

According to our database, Koji Okabe authored at least 16 papers between 2011 and 2023.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2023

Generalized Domain Adaptation Framework for Parametric Back-End in Speaker Recognition.

Qiongqiong Wang, Koji Okabe, Kong Aik Lee, Takafumi Koshinaka

IEEE Trans. Inf. Forensics Secur., 2023

2022

I4U System Description for NIST SRE'20 CTS Challenge.

Kong Aik Lee, Tomi Kinnunen, Daniele Colibro, Claudio Vair, Andreas Nautsch, Hanwu Sun, Liang He, Tianyu Liang, Qiongqiong Wang, Mickael Rouvier, Pierre-Michel Bousquet, Rohan Kumar Das, Ignacio Viñals Bailo, Meng Liu, Héctor Deldago, Xuechen Liu, Md. Sahidullah, Sandro Cumani, Boning Zhang, Koji Okabe, Hitoshi Yamamoto, Ruijie Tao, Haizhou Li, Alfonso Ortega Giménez, Longbiao Wang, Luis Buera

CoRR, 2022

2021

Task-aware Warping Factors in Mask-based Speech Enhancement.

Qiongqiong Wang, Kong Aik Lee, Takafumi Koshinaka, Koji Okabe, Hitoshi Yamamoto

Proceedings of the 29th European Signal Processing Conference, 2021

2020

NEC-TT System for Mixed-Bandwidth and Multi-Domain Speaker Recognition.

Kong Aik Lee, Hitoshi Yamamoto, Koji Okabe, Qiongqiong Wang, Ling Guo, Takafumi Koshinaka, Jiacen Zhang, Koichi Shinoda

Comput. Speech Lang., 2020

Speaker Detection in the Wild: Lessons Learned from JSALT 2019.

Leibny Paola García-Perera, Jesús Villalba, Hervé Bredin, Jun Du, Diego Castán, Alejandrina Cristià, Latané Bullock, Ling Guo, Koji Okabe, Phani Sankar Nidadavolu, Saurabh Kataria, Sizhu Chen, Léo Galmant, Marvin Lavechin, Lei Sun, Marie-Philippe Gill, Bar Ben-Yair, Sajjad Abdoli, Xin Wang, Wassim Bouaziz, Hadrien Titeux, Emmanuel Dupoux, Kong Aik Lee, Najim Dehak

Proceedings of the Odyssey 2020: The Speaker and Language Recognition Workshop, 2020

NEC-TT Speaker Verification System for SRE'19 CTS Challenge.

Kong Aik Lee, Koji Okabe, Hitoshi Yamamoto, Qiongqiong Wang, Ling Guo, Takafumi Koshinaka, Jiacen Zhang, Keisuke Ishikawa, Koichi Shinoda

Proceedings of the 21st Annual Conference of the International Speech Communication Association, 2020

A Generalized Framework for Domain Adaptation of PLDA in Speaker Recognition.

Qiongqiong Wang, Koji Okabe, Kong Aik Lee, Takafumi Koshinaka

Proceedings of the 2020 IEEE International Conference on Acoustics, 2020

2019

I4U Submission to NIST SRE 2018: Leveraging from a Decade of Shared Experiences.

Kong Aik Lee, Ville Hautamäki, Tomi Kinnunen, Hitoshi Yamamoto, Koji Okabe, Ville Vestman, Jing Huang, Guohong Ding, Hanwu Sun, Anthony Larcher, Rohan Kumar Das, Haizhou Li, Mickael Rouvier, Pierre-Michel Bousquet, Wei Rao, Qing Wang, Chunlei Zhang, Fahimeh Bahmaninezhad, Héctor Delgado, Jose Patino, Qiongqiong Wang, Ling Guo, Takafumi Koshinaka, Jiacen Zhang, Koichi Shinoda, Trung Ngo Trong, Md. Sahidullah, Fan Lu, Yun Tang, Ming Tu, Kah Kuan Teh, Tran Huy Dat, Kuruvachan K. George, Ivan Kukanov, Florent Desnous, Jichen Yang, Emre Yilmaz, Longting Xu, Jean-François Bonastre, Chenglin Xu, Zhi Hao Lim, Eng Siong Chng, Shivesh Ranjan, John H. L. Hansen, Massimiliano Todisco, Nicholas W. D. Evans

CoRR, 2019

Speaker Augmentation and Bandwidth Extension for Deep Speaker Embedding.

Hitoshi Yamamoto, Kong Aik Lee, Koji Okabe, Takafumi Koshinaka

Proceedings of the 20th Annual Conference of the International Speech Communication Association, 2019

The NEC-TT 2018 Speaker Verification System.

Kong Aik Lee, Hitoshi Yamamoto, Koji Okabe, Qiongqiong Wang, Ling Guo, Takafumi Koshinaka, Jiacen Zhang, Koichi Shinoda

Proceedings of the 20th Annual Conference of the International Speech Communication Association, 2019

I4U Submission to NIST SRE 2018: Leveraging from a Decade of Shared Experiences.

Kong Aik Lee, Ville Hautamäki, Tomi H. Kinnunen, Hitoshi Yamamoto, Koji Okabe, Ville Vestman, Jing Huang, Guohong Ding, Hanwu Sun, Anthony Larcher, Rohan Kumar Das, Haizhou Li, Mickael Rouvier, Pierre-Michel Bousquet, Wei Rao, Qing Wang, Chunlei Zhang, Fahimeh Bahmaninezhad, Héctor Delgado, Massimiliano Todisco

Proceedings of the 20th Annual Conference of the International Speech Communication Association, 2019

2018

Attention Mechanism in Speaker Recognition: What Does it Learn in Deep Speaker Embedding?

Qiongqiong Wang, Koji Okabe, Kong Aik Lee, Hitoshi Yamamoto, Takafumi Koshinaka

Proceedings of the 2018 IEEE Spoken Language Technology Workshop, 2018

Attentive Statistics Pooling for Deep Speaker Embedding.

Koji Okabe, Takafumi Koshinaka, Koichi Shinoda

Proceedings of the 19th Annual Conference of the International Speech Communication Association, 2018

Automatic Speech Translation System Selecting Target Language by Direction-of-Arrival Information.

Masanori Tsujikawa, Koji Okabe, Ken Hanazawa, Yoshinobu Kajikawa

Proceedings of the 26th European Signal Processing Conference, 2018

2017

Robust i-vector extraction tightly coupled with voice activity detection using deep neural networks.

Hitoshi Yamamoto, Koji Okabe, Takafumi Koshinaka

Proceedings of the 2017 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2017

2011

Measurement of Objective Intelligibility of Japanese Accented English Using ERJ (English Read by Japanese) Database.

Nobuaki Minematsu, Koji Okabe, Keisuke Ogaki, Keikichi Hirose

Proceedings of the 12th Annual Conference of the International Speech Communication Association, 2011