Search Results for author: Iku Ohama

Found 3 papers, 1 papers with code

Latent Conservative Objective Models for Data-Driven Crystal Structure Prediction

no code implementations16 Oct 2023 Han Qi, Xinyang Geng, Stefano Rando, Iku Ohama, Aviral Kumar, Sergey Levine

In computational chemistry, crystal structure prediction (CSP) is an optimization problem that involves discovering the lowest energy stable crystal structure for a given chemical formula.

Formation Energy

Contrastive Neural Processes for Self-Supervised Learning

1 code implementation24 Oct 2021 Konstantinos Kallidromitis, Denis Gudovskiy, Kazuki Kozuka, Iku Ohama, Luca Rigazio

In this paper, we propose a novel self-supervised learning framework that combines contrastive learning with neural processes.

Contrastive Learning Data Augmentation +3

On the Model Shrinkage Effect of Gamma Process Edge Partition Models

no code implementations NeurIPS 2017 Iku Ohama, Issei Sato, Takuya Kida, Hiroki Arimura

In order to ensure that the model shrinkage effect of the EPM works in an appropriate manner, we proposed two novel generative constructions of the EPM: CEPM incorporating constrained gamma priors, and DEPM incorporating Dirichlet priors instead of the gamma priors.

Link Prediction

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