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Compact Recurrent Neural Network based on Tensor Train for Polyphonic Music Modeling
Sakriani Sakti

Fri Dec 08 11:30 AM -- 11:50 AM (PST) @
Event URL: http://media.aau.dk/smc/wp-content/uploads/2017/12/ML4AudioNIPS17_paper_2.pdf »

(+Andros Tjandra, Satoshi Nakamura) This paper introduces a novel compression method for recurrent neural networks (RNNs) based on Tensor Train (TT) format. The objective in this work are to reduce the number of parameters in RNN and maintain their expressive power. The key of our approach is to represent the dense matrices weight parameter in the simple RNN and Gated Recurrent Unit (GRU) RNN architectures as the n- dimensional tensor in TT-format. To evaluate our proposed models, we compare it with uncompressed RNN on polyphonic sequence prediction tasks. Our proposed TT-format RNN are able to preserve the performance while reducing the number of RNN parameters significantly up to 80 times smaller.

Author Information

Sakriani Sakti (Nara Institute of Science and Technology)

SAKRIANI SAKTI received the DAAD-Siemens Program Asia 21st Century Award to study in Communication Technology, University of Ulm, Germany, and received her MSc degree in 2002. During her thesis work, she worked with the Speech Understanding Department, DaimlerChrysler Research Center, Ulm, Germany. Between 2003-2009, she worked as a researcher at ATR SLC Labs, Japan, and during 2006-2011, she worked as an expert researcher at NICT SLC Groups, Japan. While working with ATR-NICT, Japan, she continued her study (2005-2008) with Dialog Systems Group University of Ulm, Germany, and received her Ph.D. degree in 2008. She actively involved in collaboration activities such as Asian Pacific Telecommunity Project (2003-2007), A-STAR, and U-STAR (2006-2011). In 2009-2011, she served as a visiting professor of the Computer Science Department, University of Indonesia (UI), Indonesia. In 2011-2017, she was an assistant professor at the Augmented Human Communication Laboratory, NAIST, Japan. She served also as a visiting scientific researcher of INRIA Paris-Rocquencourt, France, in 2015-2016, under JSPS Strategic Young Researcher Overseas Visits Program for Accelerating Brain Circulation. Currently, she is a research associate professor at NAIST, as well as a research scientist at RIKEN, Center for Advanced Intelligent Project AIP, Japan. She is a member of JNS, SFN, ASJ, ISCA, IEICE, and IEEE. She is also the officer of ELRA/ISCA Special Interest Group on Under-resourced Languages (SIGUL) and a Board Member of Spoken Language Technologies for Under-Resourced Languages (SLTU). Her research interests include statistical pattern recognition, graphical modeling framework, deep learning, multilingual speech recognition and synthesis, spoken language translation, affective dialog system, and cognitive-communication.

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