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Kemal Oksuz

7 accepted papers

2024

Bucketed Ranking-based Losses for Efficient Training of Object Detectors

ECCV 2024poster

"Ranking-based loss functions, such as Average Precision Loss and Rank&Sort Loss, outperform widely used score-based losses in object detection. These loss functions better align with the evaluation criteria, have fewer hyperparameters, and offer robustness against the imbalance between positive and…

2024

What Makes and Breaks Safety Fine-tuning? A Mechanistic Study

NeurIPS 2024poster

Safety fine-tuning helps align Large Language Models (LLMs) with human preferences for their safe deployment. To better understand the underlying factors that make models safe via safety fine-tuning, we design a synthetic data generation framework that captures salient aspects of an unsafe input by…

2023

Correlation Loss: Enforcing Correlation between Classification and Localization

AAAI 2023technical

Object detectors are conventionally trained by a weighted sum of classification and localization losses. Recent studies (e.g., predicting IoU with an auxiliary head, Generalized Focal Loss, Rank & Sort Loss) have shown that forcing these two loss terms to interact with each other in non-conventional…

2023

Towards Building Self-Aware Object Detectors via Reliable Uncertainty Quantification and Calibration

CVPR 2023poster

The current approach for testing the robustness of object detectors suffers from serious deficiencies such as improper methods of performing out-of-distribution detection and using calibration metrics which do not consider both localisation and classification quality. In this work, we address these…

2021

Rank & Sort Loss for Object Detection and Instance Segmentation

ICCV 2021poster

We propose Rank & Sort (RS) Loss, a ranking-based loss function to train deep object detection and instance segmentation methods (i.e. visual detectors). RS Loss supervises the classifier, a sub-network of these methods, to rank each positive above all negatives as well as to sort positives among th…

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2020

A Ranking-based, Balanced Loss Function Unifying Classification and Localisation in Object Detection

NeurIPS 2020spotlight

We propose average Localisation-Recall-Precision (aLRP), a unified, bounded, balanced and ranking-based loss function for both classification and localisation tasks in object detection. aLRP extends the Localisation-Recall-Precision (LRP) performance metric (Oksuz et al., 2018) inspired from how Ave…

2018

Localization Recall Precision (LRP): A New Performance Metric for Object Detection

ECCV 2018poster

Average precision (AP), the area under the recall-precision (RP) curve, is the standard performance measure for object detection. Despite its wide acceptance, it has a number of shortcomings, the most important of which are (i) the inability to distinguish very different RP curves, and (ii) the lack…