Takafumi Koshinaka

According to our database, Takafumi Koshinaka authored at least 31 papers between 2001 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

Image Captioners Sometimes Tell More Than Images They See.

Honori Udo, Takafumi Koshinaka

CoRR, 2023

2021

Xi-Vector Embedding for Speaker Recognition.

Kong Aik Lee, Qiongqiong Wang, Takafumi Koshinaka

IEEE Signal Process. Lett., 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

Using Multi-Resolution Feature Maps with Convolutional Neural Networks for Anti-Spoofing in ASV.

Qiongqiong Wang, Kong Aik Lee, Takafumi Koshinaka

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 Interspeech 2020, 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 Interspeech 2019, 2019

Unleashing the Unused Potential of i-Vectors Enabled by GPU Acceleration.

Ville Vestman, Kong Aik Lee, Tomi H. Kinnunen, Takafumi Koshinaka

Proceedings of the Interspeech 2019, 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 Interspeech 2019, 2019

The CORAL+ Algorithm for Unsupervised Domain Adaptation of PLDA.

Kong Aik Lee, Qiongqiong Wang, Takafumi Koshinaka

Proceedings of the IEEE International Conference on Acoustics, 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 Interspeech 2018, 2018

DNN Based Speaker Embedding Using Content Information for Text-Dependent Speaker Verification.

Subhadeep Dey, Takafumi Koshinaka, Petr Motlícek, Srikanth R. Madikeri

Proceedings of the 2018 IEEE International Conference on Acoustics, 2018

Ear Acoustic Biometrics Using Inaudible Signals and Its Application to Continuous User Authentication.

Shivangi Mahto, Takayuki Arakawa, Takafumi Koshinaka

Proceedings of the 26th European Signal Processing Conference, 2018

2017

Unsupervised Discriminative Training of PLDA for Domain Adaptation in Speaker Verification.

Qiongqiong Wang, Takafumi Koshinaka

Proceedings of the Interspeech 2017, 2017

i-Vector Transformation Using a Novel Discriminative Denoising Autoencoder for Noise-Robust Speaker Recognition.

Shivangi Mahto, Hitoshi Yamamoto, Takafumi Koshinaka

Proceedings of the Interspeech 2017, 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

2016

Domain adaptation using maximum likelihood linear transformation for PLDA-based speaker verification.

Qiongqiong Wang, Hitoshi Yamamoto, Takafumi Koshinaka

Proceedings of the 2016 IEEE International Conference on Acoustics, 2016

Fast and accurate personal authentication using ear acoustics.

Takayuki Arakawa, Takafumi Koshinaka, Shohei Yano, Hideki Irisawa, Ryoji Miyahara, Hitoshi Imaoka

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2016

2015

Denoising autoencoder-based speaker feature restoration for utterances of short duration.

Hitoshi Yamamoto, Takafumi Koshinaka

Proceedings of the INTERSPEECH 2015, 2015

2013

Anomaly detection of motors with feature emphasis using only normal sounds.

Yumi Ono, Yoshifumi Onishi, Takafumi Koshinaka, Soichiro Takata, Osamu Hoshuyama

Proceedings of the IEEE International Conference on Acoustics, 2013

2012

Online Speaker Clustering Using Incremental Learning of an Ergodic Hidden Markov Model.

Takafumi Koshinaka, Kentaro Nagatomo, Koichi Shinoda

IEICE Trans. Inf. Syst., 2012

A noise-robust speech recognition method composed of weak noise suppression and weak Vector Taylor Series Adaptation.

Shuji Komeiji, Takayuki Arakawa, Takafumi Koshinaka

Proceedings of the 2012 IEEE Spoken Language Technology Workshop (SLT), 2012

2011

Committee-Based Active Learning for Speech Recognition.

Yuzo Hamanaka, Koichi Shinoda, Takuya Tsutaoka, Sadaoki Furui, Tadashi Emori, Takafumi Koshinaka

IEICE Trans. Inf. Syst., 2011

2010

Speech modeling based on committee-based active learning.

Yuzo Hamanaka, Koichi Shinoda, Sadaoki Furui, Tadashi Emori, Takafumi Koshinaka

Proceedings of the IEEE International Conference on Acoustics, 2010

2008

Open-vocabulary spoken-document retrieval based on query expansion using related web documents.

Makoto Terao, Takafumi Koshinaka, Shinichi Ando, Ryosuke Isotani, Akitoshi Okumura

Proceedings of the INTERSPEECH 2008, 2008

2005

An HMM-based Text Segmentation Method Using Variational Bayes Approach and Its Application to LVCSR for Broadcast News.

Takafumi Koshinaka, Ken-ichi Iso, Akitoshi Okumura

Proceedings of the 2005 IEEE International Conference on Acoustics, 2005

2001

A Stochastic Model for Handwritten Word Recognition Using Context Dependency Between Character Patterns.

Takafumi Koshinaka, Daisuke Nishiwaki, Keiji Yamada

Proceedings of the 6th International Conference on Document Analysis and Recognition (ICDAR 2001), 2001