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Deepak Ravikumar

7 accepted papers

2026

Memorization Through the Lens of Sample Gradients

ICLR 2026poster

Deep neural networks are known to often memorize underrepresented, hard examples, with implications for generalization and privacy. Feldman & Zhang (2020) defined a rigorous notion of memorization. However it is prohibitively expensive to compute at scale because it requires training models both w…

Cited by 0SourcecodeScholar
2026

TRIM: Token-wise Attention-Derived Saliency for Data-Efficient Instruction Tuning

ICML 2026poster

Instruction tuning is essential for aligning large language models (LLMs) to downstream tasks and commonly relies on large, diverse corpora. However, small, high-quality subsets, known as coresets, can deliver comparable or superior results, though curating them remains challenging. Existing methods…

Cited by 0SourceScholar
2025

SAP: Corrective Machine Unlearning with Scaled Activation Projection for Label Noise Robustness

AAAI 2025technical

Label corruption, where training samples are mislabeled due to non-expert annotation or adversarial attacks, significantly degrades model performance. Acquiring large, perfectly labeled datasets is costly, and retraining models from scratch is computationally expensive. To address this, we introduce…

2025

Towards Memorization Estimation: Fast, Formal and Free

ICML 2025poster

Deep learning has become the de facto approach in nearly all learning tasks. It has been observed that deep models tend to memorize and sometimes overfit data, which can lead to compromises in performance, privacy, and other critical metrics. In this paper, we explore the theoretical foundations th…

Cited by 0SourcePDFScholar
2024

Curvature Clues: Decoding Deep Learning Privacy with Input Loss Curvature

NeurIPS 2024spotlight

In this paper, we explore the properties of loss curvature with respect to input data in deep neural networks. Curvature of loss with respect to input (termed input loss curvature) is the trace of the Hessian of the loss with respect to the input. We investigate how input loss curvature varies betwe…

Cited by 2SourcePDFScholar
2024

Memorization Through the Lens of Curvature of Loss Function Around Samples

ICML 2024spotlight

Deep neural networks are over-parameterized and easily overfit to and memorize the datasets that they train on. In the extreme case, it has been shown that networks can memorize a randomly labeled dataset. In this paper, we propose using the curvature of the loss function around each training sample…

Cited by 14SourcePDFScholar
2024

Unveiling Privacy, Memorization, and Input Curvature Links

ICML 2024poster

Deep Neural Nets (DNNs) have become a pervasive tool for solving many emerging problems. However, they tend to overfit to and memorize the training set. Memorization is of keen interest since it is closely related to several concepts such as generalization, noisy learning, and privacy. To study memo…

Cited by 9SourcePDFScholar