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Retrieval-Augmented Generation (RAG) struggles on long, structured financial filings where relevant evidence is sparse and cross-referenced. This paper presents a systematic investigation of advanced metadata-driven Retrieval-Augmented…

Information Retrieval · Computer Science 2025-10-29 Michail Dadopoulos , Anestis Ladas , Stratos Moschidis , Ioannis Negkakis

Retrieval-Augmented Generation (RAG) systems critically depend on retrieval quality, yet no systematic comparison of modern retrieval methods exists for heterogeneous documents containing both text and tabular data. We benchmark ten…

Information Retrieval · Computer Science 2026-04-03 Meftun Akarsu , Recep Kaan Karaman , Christopher Mierbach

Re-ranking systems aim to reorder an initial list of documents to satisfy better the information needs associated with a user-provided query. Modern re-rankers predominantly rely on neural network models, which have proven highly effective…

Information Retrieval · Computer Science 2024-06-18 Andrea Giuseppe Di Francesco , Christian Giannetti , Nicola Tonellotto , Fabrizio Silvestri

Retrieval Augmented Generation (RAG) has greatly improved the performance of Large Language Model (LLM) responses by grounding generation with context from existing documents. These systems work well when documents are clearly relevant to a…

Computation and Language · Computer Science 2024-05-29 Jialin Dong , Bahare Fatemi , Bryan Perozzi , Lin F. Yang , Anton Tsitsulin

Efficiently reranking documents retrieved from information retrieval (IR) pipelines to enhance overall quality of Retrieval-Augmented Generation (RAG) system remains an important yet challenging problem. Recent studies have highlighted the…

Computation and Language · Computer Science 2025-11-12 Jingyu Wu , Aditya Shrivastava , Jing Zhu , Alfy Samuel , Anoop Kumar , Daben Liu

Financial analysts face significant challenges extracting information from lengthy 10-K reports, which often exceed 100 pages. This paper presents a Retrieval-Augmented Generation (RAG) system designed to answer questions about S&P 500…

Computation and Language · Computer Science 2026-04-29 Zhiyuan Cheng , Longying Lai , Yue Liu , Kai Cheng , Xiaoxi Qi

Retrieve-and-rerank is a popular retrieval pipeline because of its ability to make slow but effective rerankers efficient enough at query time by reducing the number of comparisons. Recent works in neural rerankers take advantage of large…

Information Retrieval · Computer Science 2025-05-21 Eugene Yang , Andrew Yates , Kathryn Ricci , Orion Weller , Vivek Chari , Benjamin Van Durme , Dawn Lawrie

Retrieval-augmented generation (RAG) systems combine large language models (LLMs) with external knowledge retrieval, making them highly effective for knowledge-intensive tasks. A crucial but often under-explored component of these systems…

Computation and Language · Computer Science 2025-05-19 Jiashuo Sun , Xianrui Zhong , Sizhe Zhou , Jiawei Han

Large Language Models (LLMs) have achieved impressive progress in natural language processing, but their limited ability to retain long-term context constrains performance on document-level or multi-turn tasks. Retrieval-Augmented…

Computation and Language · Computer Science 2025-05-20 Zhangyu Wang , Siyuan Gao , Rong Zhou , Hao Wang , Li Ning

Retrieval-augmented generation (RAG) systems expose numerous design choices spanning query rewriting, chunking, retrieval depth, reranking, and context compression. In practice, these choices are often configured through heuristics,…

Artificial Intelligence · Computer Science 2026-05-29 Zhen Chen , Yibing Liu , Weihao Xie , Yu Liang , Peilin Chen , Shiqi Wang

Reranking algorithms have made progress in improving document retrieval quality by efficiently aggregating relevance judgments generated by large language models (LLMs). However, identifying relevant documents for queries that require…

Information Retrieval · Computer Science 2025-11-04 Jerry Huang , Siddarth Madala , Cheng Niu , Julia Hockenmaier , Tong Zhang

Retrieval-Augmented Generation (RAG) significantly improves the performance of Large Language Models (LLMs) on knowledge-intensive tasks. However, varying response quality across LLMs under RAG necessitates intelligent routing mechanisms,…

Computation and Language · Computer Science 2025-10-20 Jiarui Zhang , Xiangyu Liu , Yong Hu , Chaoyue Niu , Fan Wu , Guihai Chen

While dense retrieval models, which embed queries and documents into a shared low-dimensional space, have gained widespread popularity, they were shown to exhibit important theoretical limitations and considerably lag behind traditional…

Information Retrieval · Computer Science 2026-04-09 Adrian Bracher , Svitlana Vakulenko

Reranking documents based on their relevance to a given query is a critical task in information retrieval. Traditional reranking methods often lack transparency and rely on proprietary models, hindering reproducibility and interpretability.…

Computation and Language · Computer Science 2025-04-15 Yuelyu Ji , Zhuochun Li , Rui Meng , Daqing He

Given a query and a document corpus, the information retrieval (IR) task is to output a ranked list of relevant documents. Combining large language models (LLMs) with embedding-based retrieval models, recent work shows promising results on…

Computation and Language · Computer Science 2023-11-01 Daman Arora , Anush Kini , Sayak Ray Chowdhury , Nagarajan Natarajan , Gaurav Sinha , Amit Sharma

One technique to improve the retrieval effectiveness of a search engine is to expand documents with terms that are related or representative of the documents' content.From the perspective of a question answering system, this might comprise…

Information Retrieval · Computer Science 2019-09-26 Rodrigo Nogueira , Wei Yang , Jimmy Lin , Kyunghyun Cho

Automatic writer identification is a common problem in document analysis. State-of-the-art methods typically focus on the feature extraction step with traditional or deep-learning-based techniques. In retrieval problems, re-ranking is a…

Computer Vision and Pattern Recognition · Computer Science 2020-07-15 Simon Jordan , Mathias Seuret , Pavel Král , Ladislav Lenc , Jiří Martínek , Barbara Wiermann , Tobias Schwinger , Andreas Maier , Vincent Christlein

Personalized image generation is crucial for improving the user experience, as it renders reference images into preferred ones according to user visual preferences. Although effective, existing methods face two main issues. First, existing…

Generative Retrieval (GR) is an emerging paradigm in information retrieval that leverages generative models to directly map queries to relevant document identifiers (DocIDs) without the need for traditional query processing or document…

Information Retrieval · Computer Science 2024-06-05 Tzu-Lin Kuo , Tzu-Wei Chiu , Tzung-Sheng Lin , Sheng-Yang Wu , Chao-Wei Huang , Yun-Nung Chen

Retrieval-augmented generation (RAG) generally enhances large language models' (LLMs) ability to solve knowledge-intensive tasks. But RAG may also lead to performance degradation due to imperfect retrieval and the model's limited ability to…

Computation and Language · Computer Science 2025-05-29 Shuyang Cao , Karthik Radhakrishnan , David Rosenberg , Steven Lu , Pengxiang Cheng , Lu Wang , Shiyue Zhang