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cs.CL2025

When Data is the Algorithm: A Systematic Study and Curation of Preference Optimization Datasets

Aladin Djuhera, Farhan Ahmed, Swanand Ravindra Kadhe +3

Aligning large language models (LLMs) is a central objective of post-training, often achieved through reward modeling and reinforcement learning methods. Among these, direct prefer…

cs.CL2025

Fixing It in Post: A Comparative Study of LLM Post-Training Data Quality and Model Performance

Aladin Djuhera, Swanand Ravindra Kadhe, Syed Zawad +3

Recent work on large language models (LLMs) has increasingly focused on post-training and alignment with datasets curated to enhance instruction following, world knowledge, and spe…

cs.CY2025

SafeCOMM: A Study on Safety Degradation in Fine-Tuned Telecom Large Language Models

Aladin Djuhera, Swanand Ravindra Kadhe, Farhan Ahmed +4

Fine-tuning large language models (LLMs) on telecom datasets is a common practice to adapt general-purpose models to the telecom domain. However, little attention has been paid to…

cs.CL2025

SafeMERGE: Preserving Safety Alignment in Fine-Tuned Large Language Models via Selective Layer-Wise Model Merging

Aladin Djuhera, Swanand Ravindra Kadhe, Farhan Ahmed +2

Fine-tuning large language models (LLMs) is a common practice to adapt generalist models to specialized domains. However, recent studies show that fine-tuning can erode safety alig…

cs.CL2025

GneissWeb: Preparing High Quality Data for LLMs at Scale

Hajar Emami Gohari, Swanand Ravindra Kadhe, Syed Yousaf Shah +29

Data quantity and quality play a vital role in determining the performance of Large Language Models (LLMs). High-quality data, in particular, can significantly boost the LLM's abil…