Search Results for author: Tsuyoshi Idé

Found 11 papers, 2 papers with code

Decentralized Collaborative Learning Framework with External Privacy Leakage Analysis

no code implementations1 Apr 2024 Tsuyoshi Idé, Dzung T. Phan, Rudy Raymond

This paper presents two methodological advancements in decentralized multi-task learning under privacy constraints, aiming to pave the way for future developments in next-generation Blockchain platforms.

Anomaly Detection Dictionary Learning +1

A resource-constrained stochastic scheduling algorithm for homeless street outreach and gleaning edible food

no code implementations15 Mar 2024 Conor M. Artman, Aditya Mate, Ezinne Nwankwo, Aliza Heching, Tsuyoshi Idé, Jiří\, Navrátil, Karthikeyan Shanmugam, Wei Sun, Kush R. Varshney, Lauri Goldkind, Gidi Kroch, Jaclyn Sawyer, Ian Watson

We developed a common algorithmic solution addressing the problem of resource-constrained outreach encountered by social change organizations with different missions and operations: Breaking Ground -- an organization that helps individuals experiencing homelessness in New York transition to permanent housing and Leket -- the national food bank of Israel that rescues food from farms and elsewhere to feed the hungry.

Scheduling Thompson Sampling

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?

Diagnostic Spatio-temporal Transformer with Faithful Encoding

no code implementations26 May 2023 Jokin Labaien, Tsuyoshi Idé, Pin-Yu Chen, Ekhi Zugasti, Xabier De Carlos

This paper addresses the task of anomaly diagnosis when the underlying data generation process has a complex spatio-temporal (ST) dependency.

Time Series Time Series Classification

Decentralized Collaborative Learning with Probabilistic Data Protection

no code implementations23 Aug 2022 Tsuyoshi Idé, Rudy Raymond

We discuss future directions of Blockchain as a collaborative value co-creation platform, in which network participants can gain extra insights that cannot be accessed when disconnected from the others.

Multi-Task Learning Privacy Preserving

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

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