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Paper#llm🔬 ResearchAnalyzed: Jan 3, 2026 06:16

Predicting Data Efficiency for LLM Fine-tuning

Published:Dec 31, 2025 17:37
1 min read
ArXiv

Analysis

This paper addresses the practical problem of determining how much data is needed to fine-tune large language models (LLMs) effectively. It's important because fine-tuning is often necessary to achieve good performance on specific tasks, but the amount of data required (data efficiency) varies greatly. The paper proposes a method to predict data efficiency without the costly process of incremental annotation and retraining, potentially saving significant resources.
Reference

The paper proposes using the gradient cosine similarity of low-confidence examples to predict data efficiency based on a small number of labeled samples.

Paper#llm🔬 ResearchAnalyzed: Jan 3, 2026 19:11

Entropy-Aware Speculative Decoding Improves LLM Reasoning

Published:Dec 29, 2025 00:45
1 min read
ArXiv

Analysis

This paper introduces Entropy-Aware Speculative Decoding (EASD), a novel method to enhance the performance of speculative decoding (SD) for Large Language Models (LLMs). The key innovation is the use of entropy to penalize low-confidence predictions from the draft model, allowing the target LLM to correct errors and potentially surpass its inherent performance. This is a significant contribution because it addresses a key limitation of standard SD, which is often constrained by the target model's performance. The paper's claims are supported by experimental results demonstrating improved performance on reasoning benchmarks and comparable efficiency to standard SD.
Reference

EASD incorporates a dynamic entropy-based penalty. When both models exhibit high entropy with substantial overlap among their top-N predictions, the corresponding token is rejected and re-sampled by the target LLM.