A Logical Approach to Criminal Case Investigation

1 code implementation • 13 Feb 2024 • Takanori Ugai, Yusuke Koyanagi, Fumihito Nishino

We created an ontology of motives and methods of murder from dictionaries and dictionaries, added it to the knowledge graph of ``The Adventure of the Speckled Band'', and applied scripts to determine motives, opportunities, and methods.

Learning Large Causal Structures from Inverse Covariance Matrix via Sparse Matrix Decomposition

1 code implementation • 25 Nov 2022 • Shuyu Dong, Kento Uemura, Akito Fujii, Shuang Chang, Yusuke Koyanagi, Koji Maruhashi, Michèle Sebag

In the context of linear structural equation models (SEMs), this paper focuses on learning causal structures from the inverse covariance matrix.

Causal Discovery

Report on the First Knowledge Graph Reasoning Challenge 2018 -- Toward the eXplainable AI System

no code implementations • 22 Aug 2019 • Takahiro Kawamura, Shusaku Egami, Koutarou Tamura, Yasunori Hokazono, Takanori Ugai, Yusuke Koyanagi, Fumihito Nishino, Seiji Okajima, Katsuhiko Murakami, Kunihiko Takamatsu, Aoi Sugiura, Shun Shiramatsu, Shawn Zhang, Kouji Kozaki

This paper presents a summary report of the first challenge held in 2018, including the knowledge graph construction, the techniques proposed for reasoning and/or estimation, the evaluation metrics, and the results.

graph construction

Chemical Compounds Knowledge Visualization with Natural Language Processing and Linked Data

no code implementations • LREC 2018 • Kazunari Tanaka, Tomoya Iwakura, Yusuke Koyanagi, Noriko Ikeda, Hiroyuki Shindo, Yuji Matsumoto