Search Results for author: Naoki Abe

Found 8 papers, 2 papers with code

Generative Perturbation Analysis for Probabilistic Black-Box Anomaly Attribution

1 code implementation9 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.

Black-Box Anomaly Attribution

no code implementations29 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?

Anomaly Attribution with Likelihood Compensation

no code implementations23 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.

Cardinality-Regularized Hawkes-Granger Model

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.

Management Point Processes

Targeted Advertising on Social Networks Using Online Variational Tensor Regression

no code implementations22 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.

Marketing regression

Directed Graph Auto-Encoders

1 code implementation25 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.

Link Prediction

Grouped Orthogonal Matching Pursuit for Variable Selection and Prediction

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.

feature selection regression +1

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