Search Results for author: Ryo Igarashi

Found 6 papers, 5 papers with code

Crystalformer: Infinitely Connected Attention for Periodic Structure Encoding

no code implementations18 Mar 2024 Tatsunori Taniai, Ryo Igarashi, Yuta Suzuki, Naoya Chiba, Kotaro Saito, Yoshitaka Ushiku, Kanta Ono

Predicting physical properties of materials from their crystal structures is a fundamental problem in materials science.

A Transformer Model for Symbolic Regression towards Scientific Discovery

1 code implementation7 Dec 2023 Florian Lalande, Yoshitomo Matsubara, Naoya Chiba, Tatsunori Taniai, Ryo Igarashi, Yoshitaka Ushiku

Once trained, we apply our best model to the SRSD datasets (Symbolic Regression for Scientific Discovery datasets) which yields state-of-the-art results using the normalized tree-based edit distance, at no extra computational cost.

regression Symbolic Regression

Neural Structure Fields with Application to Crystal Structure Autoencoders

1 code implementation8 Dec 2022 Naoya Chiba, Yuta Suzuki, Tatsunori Taniai, Ryo Igarashi, Yoshitaka Ushiku, Kotaro Saito, Kanta Ono

We propose neural structure fields (NeSF) as an accurate and practical approach for representing crystal structures using neural networks.

SRSD: Rethinking Datasets of Symbolic Regression for Scientific Discovery

1 code implementation NeurIPS 2022 AI for Science: Progress and Promises 2022 Yoshitomo Matsubara, Naoya Chiba, Ryo Igarashi, Yoshitaka Ushiku

Symbolic Regression (SR) is a task of recovering mathematical expressions from given data and has been attracting attention from the research community to discuss its potential for scientific discovery.

regression Symbolic Regression +1

Rethinking Symbolic Regression Datasets and Benchmarks for Scientific Discovery

1 code implementation21 Jun 2022 Yoshitomo Matsubara, Naoya Chiba, Ryo Igarashi, Yoshitaka Ushiku

For each of the 120 SRSD datasets, we carefully review the properties of the formula and its variables to design reasonably realistic sampling ranges of values so that our new SRSD datasets can be used for evaluating the potential of SRSD such as whether or not an SR method can (re)discover physical laws from such datasets.

regression Symbolic Regression +1

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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