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cs.CL2025

Separate the Wheat from the Chaff: Winnowing Down Divergent Views in Retrieval Augmented Generation

Song Wang, Zihan Chen, Peng Wang +5

Retrieval-augmented generation (RAG) enhances large language models (LLMs) by integrating external knowledge sources to address their limitations in accessing up-to-date or special…

cs.CL2025

Source2Synth: Synthetic Data Generation and Curation Grounded in Real Data Sources

Alisia Lupidi, Carlos Gemmell, Nicola Cancedda +5

Synthetic data generation has recently emerged as a promising approach for enhancing the capabilities of large language models (LLMs) without the need for expensive human annotatio…

cs.CL2025

Efficient Tool Use with Chain-of-Abstraction Reasoning

Silin Gao, Jane Dwivedi-Yu, Ping Yu +7

To achieve faithful reasoning that aligns with human expectations, large language models (LLMs) need to ground their reasoning to real-world knowledge (e.g., web facts, math and ph…

cs.CL2024

MultiContrievers: Analysis of Dense Retrieval Representations

Seraphina Goldfarb-Tarrant, Pedro Rodriguez, Jane Dwivedi-Yu +1

Dense retrievers compress source documents into (possibly lossy) vector representations, yet there is little analysis of what information is lost versus preserved, and how it affec…

cs.CL2024

Self-Taught Evaluators

Tianlu Wang, Ilia Kulikov, Olga Golovneva +7

Model-based evaluation is at the heart of successful model development -- as a reward model for training, and as a replacement for human evaluation. To train such evaluators, the s…

cs.CL2024

GLoRe: When, Where, and How to Improve LLM Reasoning via Global and Local Refinements

Alex Havrilla, Sharath Raparthy, Christoforus Nalmpantis +4

State-of-the-art language models can exhibit impressive reasoning refinement capabilities on math, science or coding tasks. However, recent work demonstrates that even the best mod…