PDF Retrieval Augmented Question Answering
- URL: http://arxiv.org/abs/2506.18027v1
- Date: Sun, 22 Jun 2025 13:14:19 GMT
- Title: PDF Retrieval Augmented Question Answering
- Abstract summary: This paper presents an advancement in Question-Answering (QA) systems using a Retrieval Augmented Generation (RAG) framework.<n>We seek to develop a comprehensive RAG-based QA system that will effectively address complex multimodal questions.
- Score: 14.617711623828248
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: This paper presents an advancement in Question-Answering (QA) systems using a Retrieval Augmented Generation (RAG) framework to enhance information extraction from PDF files. Recognizing the richness and diversity of data within PDFs--including text, images, vector diagrams, graphs, and tables--poses unique challenges for existing QA systems primarily designed for textual content. We seek to develop a comprehensive RAG-based QA system that will effectively address complex multimodal questions, where several data types are combined in the query. This is mainly achieved by refining approaches to processing and integrating non-textual elements in PDFs into the RAG framework to derive precise and relevant answers, as well as fine-tuning large language models to better adapt to our system. We provide an in-depth experimental evaluation of our solution, demonstrating its capability to extract accurate information that can be applied to different types of content across PDFs. This work not only pushes the boundaries of retrieval-augmented QA systems but also lays a foundation for further research in multimodal data integration and processing.
Related papers
- Empirical Evaluation of PDF Parsing and Chunking for Financial Question Answering with RAG [11.902442699404403]
We study how different components and design choices affect the performance of a RAG system for understanding PDFs.<n>We systematically examine multiple PDF pipelines for chunking strategies.<n>Our results offer practical guidelines for building robust RAG PDF understanding.
arXiv Detail & Related papers (2026-04-13T20:39:43Z) - MARA: A Multimodal Adaptive Retrieval-Augmented Framework for Document Question Answering [51.19392014547221]
Retrieval-based multimodal document QA aims to identify and integrate relevant information from visually rich documents with complex multimodal structures.<n>Current approaches rely on query-agnostic document representations that overlook salient content.<n>We propose the Multimodal Adaptive Retrieval-Augmented (MARA) framework, which introduces query-adaptive generation.
arXiv Detail & Related papers (2026-02-01T12:27:40Z) - pdfQA: Diverse, Challenging, and Realistic Question Answering over PDFs [14.395485027306739]
We present pdfQA, a multi-domain 2K human-annotated (real-pdfQA) and 2K synthetic dataset (syn-pdfQA)<n>We apply and evaluate quality and difficulty filters on both datasets, obtaining valid and challenging QA pairs.
arXiv Detail & Related papers (2026-01-05T17:15:26Z) - Leveraging Spreading Activation for Improved Document Retrieval in Knowledge-Graph-Based RAG Systems [0.0]
Retrieval-augmented generation (RAG) systems struggle to reliably retrieve and connect the multi-step evidence required for complicated reasoning tasks.<n>Most of the standard RAG frameworks regard all retrieved information as equally reliable, overlooking the varying credibility and interconnected nature of large textual corpora.<n>We propose a novel RAG framework that employs the spreading activation algorithm to retrieve information from a corpus of documents interconnected by automatically constructed knowledge graphs.
arXiv Detail & Related papers (2025-12-17T19:38:35Z) - Scaling Beyond Context: A Survey of Multimodal Retrieval-Augmented Generation for Document Understanding [61.36285696607487]
Document understanding is critical for applications from financial analysis to scientific discovery.<n>Current approaches, whether OCR-based pipelines feeding Large Language Models (LLMs) or native Multimodal LLMs (MLLMs) face key limitations.<n>Retrieval-Augmented Generation (RAG) helps ground models in external data, but documents' multimodal nature, combining text, tables, charts, and layout, demands a more advanced paradigm: Multimodal RAG.
arXiv Detail & Related papers (2025-10-17T02:33:16Z) - Domain-Specific Data Generation Framework for RAG Adaptation [58.20906914537952]
Retrieval-Augmented Generation (RAG) combines the language understanding and reasoning power of large language models with external retrieval to enable domain-grounded responses.<n>We propose RAGen, a framework for generating domain-grounded question-answer-context (QAC) triples tailored to diverse RAG adaptation approaches.
arXiv Detail & Related papers (2025-10-13T09:59:49Z) - MSRS: Evaluating Multi-Source Retrieval-Augmented Generation [51.717139132190574]
Many real-world applications demand the ability to integrate and summarize information scattered across multiple sources.<n>We present a scalable framework for constructing evaluation benchmarks that challenge RAG systems to integrate information across distinct sources.
arXiv Detail & Related papers (2025-08-28T14:59:55Z) - Benchmarking Multimodal Understanding and Complex Reasoning for ESG Tasks [56.350173737493215]
Environmental, Social, and Governance (ESG) reports are essential for evaluating sustainability practices, ensuring regulatory compliance, and promoting financial transparency.<n>MMESGBench is a first-of-its-kind benchmark dataset to evaluate multimodal understanding and complex reasoning across structurally diverse and multi-source ESG documents.<n>MMESGBench comprises 933 validated QA pairs derived from 45 ESG documents, spanning across seven distinct document types and three major ESG source categories.
arXiv Detail & Related papers (2025-07-25T03:58:07Z) - HM-RAG: Hierarchical Multi-Agent Multimodal Retrieval Augmented Generation [11.53083922927901]
HM-RAG is a novel Hierarchical Multi-agent Multimodal RAG framework.<n>It pioneers collaborative intelligence for dynamic knowledge synthesis across structured, unstructured, and graph-based data.
arXiv Detail & Related papers (2025-04-13T06:55:33Z) - Generative Retrieval for Book search [106.67655212825025]
We propose an effective Generative retrieval framework for Book Search.<n>It features two main components: data augmentation and outline-oriented book encoding.<n>Experiments on a proprietary Baidu dataset demonstrate that GBS outperforms strong baselines.
arXiv Detail & Related papers (2025-01-19T12:57:13Z) - VisDoM: Multi-Document QA with Visually Rich Elements Using Multimodal Retrieval-Augmented Generation [100.06122876025063]
This paper introduces VisDoMBench, the first comprehensive benchmark designed to evaluate QA systems in multi-document settings.<n>We propose VisDoMRAG, a novel multimodal Retrieval Augmented Generation (RAG) approach that simultaneously utilizes visual and textual RAG.
arXiv Detail & Related papers (2024-12-14T06:24:55Z) - Developing Retrieval Augmented Generation (RAG) based LLM Systems from PDFs: An Experience Report [3.4632900249241874]
This paper presents an experience report on the development of Retrieval Augmented Generation (RAG) systems using PDF documents as the primary data source.
The RAG architecture combines generative capabilities of Large Language Models (LLMs) with the precision of information retrieval.
The practical implications of this research lie in enhancing the reliability of generative AI systems in various sectors.
arXiv Detail & Related papers (2024-10-21T12:21:49Z) - PDF-MVQA: A Dataset for Multimodal Information Retrieval in PDF-based Visual Question Answering [13.625303311724757]
Document Question Answering (QA) presents a challenge in understanding visually-rich documents (VRD)
We propose PDF-MVQA, which is tailored for research journal articles, encompassing multiple pages and multimodal information retrieval.
arXiv Detail & Related papers (2024-04-19T09:00:05Z) - Adaptive-RAG: Learning to Adapt Retrieval-Augmented Large Language Models through Question Complexity [59.57065228857247]
Retrieval-augmented Large Language Models (LLMs) have emerged as a promising approach to enhancing response accuracy in several tasks, such as Question-Answering (QA)
We propose a novel adaptive QA framework, that can dynamically select the most suitable strategy for (retrieval-augmented) LLMs based on the query complexity.
We validate our model on a set of open-domain QA datasets, covering multiple query complexities, and show that ours enhances the overall efficiency and accuracy of QA systems.
arXiv Detail & Related papers (2024-03-21T13:52:30Z) - CRUD-RAG: A Comprehensive Chinese Benchmark for Retrieval-Augmented Generation of Large Language Models [49.16989035566899]
Retrieval-Augmented Generation (RAG) is a technique that enhances the capabilities of large language models (LLMs) by incorporating external knowledge sources.
This paper constructs a large-scale and more comprehensive benchmark, and evaluates all the components of RAG systems in various RAG application scenarios.
arXiv Detail & Related papers (2024-01-30T14:25:32Z) - Beyond Extraction: Contextualising Tabular Data for Efficient
Summarisation by Language Models [0.0]
The conventional use of the Retrieval-Augmented Generation architecture has proven effective for retrieving information from diverse documents.
This research introduces an innovative approach to enhance the accuracy of complex table queries in RAG-based systems.
arXiv Detail & Related papers (2024-01-04T16:16:14Z) - Mixed-modality Representation Learning and Pre-training for Joint
Table-and-Text Retrieval in OpenQA [85.17249272519626]
An optimized OpenQA Table-Text Retriever (OTTeR) is proposed.
We conduct retrieval-centric mixed-modality synthetic pre-training.
OTTeR substantially improves the performance of table-and-text retrieval on the OTT-QA dataset.
arXiv Detail & Related papers (2022-10-11T07:04:39Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.