A Stochastic Model for Handwritten Word Recognition Using Context Dependency Between Character Patterns. - Takafumi Koshinaka; Daisuke Nishiwaki; Keiji Yamada (ICDAR, 2001)

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 (ICASSP (1), 2005)

Open-vocabulary spoken-document retrieval based on query expansion using related web documents. - Makoto Terao; Takafumi Koshinaka; Shinichi Ando; Ryosuke Isotani; Akitoshi Okumura (INTERSPEECH, 2008)

Speech modeling based on committee-based active learning. - Yuzo Hamanaka; Koichi Shinoda; Sadaoki Furui; Tadashi Emori; Takafumi Koshinaka (ICASSP, 2010)

Committee-Based Active Learning for Speech Recognition. - Yuzo Hamanaka; Koichi Shinoda; Takuya Tsutaoka; Sadaoki Furui; Tadashi Emori; Takafumi Koshinaka (IEICE Trans. Inf. Syst., 2011)

A noise-robust speech recognition method composed of weak noise suppression and weak Vector Taylor Series Adaptation. - Shuji Komeiji; Takayuki Arakawa; Takafumi Koshinaka (SLT, 2012)

Online Speaker Clustering Using Incremental Learning of an Ergodic Hidden Markov Model. - Takafumi Koshinaka; Kentaro Nagatomo; Koichi Shinoda (IEICE Trans. Inf. Syst., 2012)

Anomaly detection of motors with feature emphasis using only normal sounds. - Yumi Ono; Yoshifumi Onishi; Takafumi Koshinaka; Soichiro Takata; Osamu Hoshuyama (ICASSP, 2013)

Denoising autoencoder-based speaker feature restoration for utterances of short duration. - Hitoshi Yamamoto; Takafumi Koshinaka (INTERSPEECH, 2015)

Fast and accurate personal authentication using ear acoustics. - Takayuki Arakawa; Takafumi Koshinaka; Shohei Yano; Hideki Irisawa; Ryoji Miyahara; Hitoshi Imaoka (APSIPA, 2016)

Domain adaptation using maximum likelihood linear transformation for PLDA-based speaker verification. - Qiongqiong Wang; Hitoshi Yamamoto; Takafumi Koshinaka (ICASSP, 2016)

Robust i-vector extraction tightly coupled with voice activity detection using deep neural networks. - Hitoshi Yamamoto; Koji Okabe; Takafumi Koshinaka (APSIPA, 2017)

i-Vector Transformation Using a Novel Discriminative Denoising Autoencoder for Noise-Robust Speaker Recognition. - Shivangi Mahto; Hitoshi Yamamoto; Takafumi Koshinaka (INTERSPEECH, 2017)

Unsupervised Discriminative Training of PLDA for Domain Adaptation in Speaker Verification. - Qiongqiong Wang; Takafumi Koshinaka (INTERSPEECH, 2017)

Ear Acoustic Biometrics Using Inaudible Signals and Its Application to Continuous User Authentication. - Shivangi Mahto; Takayuki Arakawa; Takafumi Koshinaka (EUSIPCO, 2018)

DNN Based Speaker Embedding Using Content Information for Text-Dependent Speaker Verification. - Subhadeep Dey; Takafumi Koshinaka; Petr Motlícek; Srikanth R. Madikeri (ICASSP, 2018)

Attentive Statistics Pooling for Deep Speaker Embedding. - Koji Okabe; Takafumi Koshinaka; Koichi Shinoda (INTERSPEECH, 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 (SLT, 2018)

The CORAL+ Algorithm for Unsupervised Domain Adaptation of PLDA. - Kong Aik Lee; Qiongqiong Wang; Takafumi Koshinaka (ICASSP, 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 (INTERSPEECH, 2019)

Unleashing the Unused Potential of i-Vectors Enabled by GPU Acceleration. - Ville Vestman; Kong Aik Lee; Tomi H. Kinnunen; Takafumi Koshinaka (INTERSPEECH, 2019)

Speaker Augmentation and Bandwidth Extension for Deep Speaker Embedding. - Hitoshi Yamamoto; Kong Aik Lee; Koji Okabe; Takafumi Koshinaka (INTERSPEECH, 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 019; Guohong Ding; Hanwu Sun; Anthony Larcher; Rohan Kumar Das; Haizhou Li 001; et al. (CoRR, 2019)

A Generalized Framework for Domain Adaptation of PLDA in Speaker Recognition. - Qiongqiong Wang; Koji Okabe; Kong Aik Lee; Takafumi Koshinaka (ICASSP, 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 (INTERSPEECH, 2020)

Using Multi-Resolution Feature Maps with Convolutional Neural Networks for Anti-Spoofing in ASV. - Qiongqiong Wang; Kong Aik Lee; Takafumi Koshinaka (Odyssey, 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)

Task-aware Warping Factors in Mask-based Speech Enhancement. - Qiongqiong Wang; Kong Aik Lee; Takafumi Koshinaka; Koji Okabe; Hitoshi Yamamoto (EUSIPCO, 2021)

Xi-Vector Embedding for Speaker Recognition. - Kong Aik Lee; Qiongqiong Wang; Takafumi Koshinaka (IEEE Signal Process. Lett., 2021)

Image Captioners Sometimes Tell More Than Images They See. - Honori Udo; Takafumi Koshinaka (CoRR, 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)

Reading is Believing: Revisiting Language Bottleneck Models for Image Classification. - Honori Udo; Takafumi Koshinaka (ICIP, 2024)

HYB-VITON: A Hybrid Approach to Virtual Try-On Combining Explicit and Implicit Warping. - Kosuke Takemoto; Takafumi Koshinaka (ICASSP, 2025)