no code implementations • 20 Oct 2022 • Chihiro Watanabe, Hirokazu Kameoka
In this paper, we propose a new variational-autoencoder-based voice conversion model accompanied by an auxiliary network, which ensures that the conversion result correctly reflects the specified F0/timbre information.
no code implementations • 5 Aug 2021 • Chihiro Watanabe, Taiji Suzuki
However, it is limited to a two-mode reordering (i. e., the rows and columns are reordered separately) and it cannot be applied in the one-mode setting (i. e., the same node order is used for reordering both rows and columns), owing to the characteristics of its model architecture.
no code implementations • 26 Mar 2021 • Chihiro Watanabe, Taiji Suzuki
This denoised mean matrix can be used to visualize the global structure of the reordered observed matrix.
no code implementations • 23 Feb 2021 • Chihiro Watanabe, Taiji Suzuki
Biclustering is a method for detecting homogeneous submatrices in a given observed matrix, and it is an effective tool for relational data analysis.
no code implementations • 18 Sep 2020 • Chihiro Watanabe, Hirokazu Kameoka
Particularly, it has been shown that a monaural speech separation task can be successfully solved with a DNN-based method called deep clustering (DC), which uses a DNN to describe the process of assigning a continuous vector to each time-frequency (TF) bin and measure how likely each pair of TF bins is to be dominated by the same speaker.
no code implementations • 27 May 2020 • Chihiro Watanabe, Taiji Suzuki
In this case, it becomes crucial to consider the selective bias in the block structure, that is, the block structure is selected from all the possible cluster memberships based on some criterion by the clustering algorithm.
no code implementations • 10 Jun 2019 • Chihiro Watanabe, Taiji Suzuki
Latent block models are used for probabilistic biclustering, which is shown to be an effective method for analyzing various relational data sets.
no code implementations • 3 Oct 2018 • Chihiro Watanabe
Interpreting the prediction mechanism of complex models is currently one of the most important tasks in the machine learning field, especially with layered neural networks, which have achieved high predictive performance with various practical data sets.
no code implementations • 18 May 2018 • Chihiro Watanabe, Kaoru Hiramatsu, Kunio Kashino
Interpretability has become an important issue in the machine learning field, along with the success of layered neural networks in various practical tasks.
no code implementations • 13 Apr 2018 • Chihiro Watanabe, Kaoru Hiramatsu, Kunio Kashino
We show experimentally that our proposed method can reveal the role of each part of a layered neural network by applying the neural networks to three types of data sets, extracting communities from the trained network, and applying the proposed method to the community structure.
no code implementations • 1 Mar 2017 • Chihiro Watanabe, Kaoru Hiramatsu, Kunio Kashino
And (3) data analysis: in practical data it reveals the community structure in the input, hidden, and output layers, which serves as a clue for discovering knowledge from a trained neural network.