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Riku Togashi

7 accepted papers

2026

Beyond Match Maximization and Fairness: Retention-Optimized Two-Sided Matching

ICLR 2026poster

On two-sided matching platforms such as online dating and recruiting, recommendation algorithms often aim to maximize the total number of matches. However, this objective creates an imbalance, where some users receive far too many matches while many others receive very few and eventually abandon the…

Cited by 0SourceScholar
2025

Instance-wise Supervision-level Optimization in Active Learning

CVPR 2025poster

Active learning (AL) is a label-efficient machine learning paradigm that focuses on selectively annotating high-value instances to maximize learning efficiency. Its effectiveness can be further enhanced by incorporating weak supervision, which uses rough yet cost-effective annotations instead of exa…

2024

Robust Nearest Neighbors for Source-Free Domain Adaptation under Class Distribution Shift

ECCV 2024poster

"The goal of source-free domain adaptation (SFDA) is retraining a model fit on data from a source domain (drawings) to classify data from a target domain (photos) employing only the target samples. In addition to the domain shift, in a realistic scenario, the number of samples per class on source an…

Cited by 1SourcePDFScholar
2023

Toward Verifiable and Reproducible Human Evaluation for Text-to-Image Generation

CVPR 2023poster

Human evaluation is critical for validating the performance of text-to-image generative models, as this highly cognitive process requires deep comprehension of text and images. However, our survey of 37 recent papers reveals that many works rely solely on automatic measures (e.g., FID) or perform po…

2022

AxIoU: An Axiomatically Justified Measure for Video Moment Retrieval

CVPR 2022poster

Evaluation measures have a crucial impact on the direction of research. Therefore, it is of utmost importance to develop appropriate and reliable evaluation measures for new applications where conventional measures are not well suited. Video Moment Retrieval (VMR) is one such application, and the cu…

Cited by 2PDFScholar
2022

Optimal Correction Cost for Object Detection Evaluation

CVPR 2022poster

Mean Average Precision (mAP) is the primary evaluation measure for object detection. Although object detection has a broad range of applications, mAP evaluates detectors in terms of the performance of ranked instance retrieval. Such the assumption for the evaluation task does not suit some downstrea…

Cited by 19PDFcodeScholar