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Mansheej Paul

8 accepted papers

2025

Perplexed by Perplexity: Perplexity-Based Data Pruning With Small Reference Models

ICLR 2025poster

In this work, we investigate whether small language models can determine high-quality subsets of large-scale text datasets that improve the performance of larger language models. While existing work has shown that pruning based on the perplexity of a larger model can yield high-quality data, we inve…

Cited by 25SourcePDFScholar
2025

Scaling Laws for Precision

ICLR 2025oral

Low precision training and inference affect both the quality and cost of language models, but current scaling laws do not account for this. In this work, we devise "precision-aware" scaling laws for both training and inference. We propose that training in lower precision reduces the model's "effecti…

Cited by 24SourcePDFScholar
2023

Pretraining task diversity and the emergence of non-Bayesian in-context learning for regression

NeurIPS 2023poster

Pretrained transformers exhibit the remarkable ability of in-context learning (ICL): they can learn tasks from just a few examples provided in the prompt without updating any weights. This raises a foundational question: can ICL solve fundamentally _new_ tasks that are very different from those seen…

2023

Unmasking the Lottery Ticket Hypothesis: What's Encoded in a Winning Ticket's Mask?

ICLR 2023top-25%

As neural networks get larger and costlier, it is important to find sparse networks that require less compute and memory but can be trained to the same accuracy as the full network (i.e. matching). Iterative magnitude pruning (IMP) is a state of the art algorithm that can find such highly sparse mat…

Cited by 50SourcePDFScholar
2022

Lottery Tickets on a Data Diet: Finding Initializations with Sparse Trainable Networks

NeurIPS 2022accept

A striking observation about iterative magnitude pruning (IMP; Frankle et al. 2020) is that—after just a few hundred steps of dense training—the method can find a sparse sub-network that can be trained to the same accuracy as the dense network. However, the same does not hold at step 0, i.e. random…

2021

Deep Learning on a Data Diet: Finding Important Examples Early in Training

NeurIPS 2021poster

Recent success in deep learning has partially been driven by training increasingly overparametrized networks on ever larger datasets. It is therefore natural to ask: how much of the data is superfluous, which examples are important for generalization, and how do we find them? In this work, we make t…

2020

Deep learning versus kernel learning: an empirical study of loss landscape geometry and the time evolution of the Neural Tangent Kernel

NeurIPS 2020poster

In suitably initialized wide networks, small learning rates transform deep neural networks (DNNs) into neural tangent kernel (NTK) machines, whose training dynamics is well-approximated by a linear weight expansion of the network at initialization. Standard training, however, diverges from its line…

Cited by 227SourcePDFScholar