no code implementations • 6 Feb 2024 • Dongxia Wu, Tsuyoshi Idé, Aurélie Lozano, Georgios Kollias, Jiří Navrátil, Naoki Abe, Yi-An Ma, Rose Yu
In particular, we are interested in discovering instance-level causal structures in an unsupervised manner.
1 code implementation • 9 Aug 2023 • Tsuyoshi Idé, Naoki Abe
We then propose a novel framework for probabilistic anomaly attribution that allows us to not only compute attribution scores as the predictive mean but also quantify the uncertainty of those scores.
no code implementations • 29 May 2023 • Tsuyoshi Idé, Naoki Abe
When the prediction of a black-box machine learning model deviates from the true observation, what can be said about the reason behind that deviation?
no code implementations • 23 Aug 2022 • Tsuyoshi Idé, Amit Dhurandhar, Jiří Navrátil, Moninder Singh, Naoki Abe
In either case, one would ideally want to compute a ``responsibility score'' indicative of the extent to which an input variable is responsible for the anomalous output.
no code implementations • NeurIPS 2021 • Tsuyoshi Idé, Georgios Kollias, Dzung T. Phan, Naoki Abe
In this paper, we propose a mathematically well-defined sparse causal learning framework based on a cardinality-regularized Hawkes process, which remedies the pathological issues of existing approaches.
no code implementations • 22 Aug 2022 • Tsuyoshi Idé, Keerthiram Murugesan, Djallel Bouneffouf, Naoki Abe
The proposed framework is designed to accommodate any number of feature vectors in the form of multi-mode tensor, thereby enabling to capture the heterogeneity that may exist over user preferences, products, and campaign strategies in a unified manner.
1 code implementation • 25 Feb 2022 • Georgios Kollias, Vasileios Kalantzis, Tsuyoshi Idé, Aurélie Lozano, Naoki Abe
We introduce a new class of auto-encoders for directed graphs, motivated by a direct extension of the Weisfeiler-Leman algorithm to pairs of node labels.
no code implementations • NeurIPS 2009 • Grzegorz Swirszcz, Naoki Abe, Aurelie C. Lozano
We consider the problem of variable group selection for least squares regression, namely, that of selecting groups of variables for best regression performance, leveraging and adhering to a natural grouping structure within the explanatory variables.