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Takeshi Yamada

6 accepted papers

2024

Neural Network-Based Virtual Microphone Estimation with Virtual Microphone and Beamformer-Level Multi-Task Loss

ICASSP 2024accepted

Array processing performance depends on the number of microphones available. Virtual microphone estimation (VME) has been proposed to increase the number of microphone signals artificially. Neural network-based VME (NN-VME) trains an NN with a VM-level loss to predict a signal at a microphone locati…

Cited by 0SourceScholar
2022

Nonparametric Relational Models with Superrectangulation

AISTATS 2022poster

This paper addresses the question, ”What is the smallest object that contains all rectangular partitions with n or fewer blocks?” and shows its application to relational data analysis using a new strategy we call super Bayes as an alternative to Bayesian nonparametric (BNP) methods. Conventionally,…

Cited by 3SourcePDFScholar
2021

Permuton-induced Chinese Restaurant Process

NeurIPS 2021poster

This paper proposes the permuton-induced Chinese restaurant process (PCRP), a stochastic process on rectangular partitioning of a matrix. This distribution is suitable for use as a prior distribution in Bayesian nonparametric relational model to find hidden clusters in matrices and network data. Our…

2019

Time-frequency-bin-wise Switching of Minimum Variance Distortionless Response Beamformer for Underdetermined Situations

ICASSP 2019accepted

In this paper, we present a speech enhancement method using two microphones in underdetermined situations. Time-frequency (TF) binary masking is a conventional method of enhancing speech in underdetermined situations by appropriately multiplying each TF component by zero or one. Extending this metho…

Cited by 0SourceScholar
2015

Cross-Domain Matching for Bag-of-Words Data via Kernel Embeddings of Latent Distributions

NeurIPS 2015poster

We propose a kernel-based method for finding matching between instances across different domains, such as multilingual documents and images with annotations. Each instance is assumed to be represented as a multiset of features, e.g., a bag-of-words representation for documents. The major difficulty…

Cited by 12SourcePDFScholar