Search Results for author: Katsuki Fujisawa

Found 4 papers, 3 papers with code

Diversified Adversarial Attacks based on Conjugate Gradient Method

1 code implementation20 Jun 2022 Keiichiro Yamamura, Haruki Sato, Nariaki Tateiwa, Nozomi Hata, Toru Mitsutake, Issa Oe, Hiroki Ishikura, Katsuki Fujisawa

From the analysis of the diversity using this index, we show that the more diverse search of the proposed method remarkably improves its attack success rate.

Nested Subspace Arrangement for Representation of Relational Data

1 code implementation ICML 2020 Nozomi Hata, Shizuo Kaji, Akihiro Yoshida, Katsuki Fujisawa

Studies on acquiring appropriate continuous representations of discrete objects, such as graphs and knowledge base data, have been conducted by many researchers in the field of machine learning.

Representation Learning

The second-order reduced density matrix method and the two-dimensional Hubbard model

1 code implementation20 Jul 2012 James S. M. Anderson, Maho Nakata, Ryo Igarashi, Katsuki Fujisawa, Makoto Yamashita

In this paper, we establish the utility of the RDM method when employing the $P$, $Q$, $G$, $T1$ and $T2^\prime$ conditions in the two-dimension al Hubbard model case and we conduct a thorough study applying the $4\times 4$ Hubbard model employing a coefficients.

Strongly Correlated Electrons

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