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Structured data, such as tables, graphs, and databases, play a critical role in plentiful NLP tasks such as question answering and dialogue system. Recently, inspired by Vision-Language Models, Graph Neutral Networks (GNNs) have been…

Computation and Language · Computer Science 2025-02-11 Yao Xu , Shizhu He , Jiabei Chen , Zeng Xiangrong , Bingning Wang , Guang Liu , Jun Zhao , Kang Liu

The intelligent question answering (IQA) system can accurately capture users' search intention by understanding the natural language questions, searching relevant content efficiently from a massive knowledge-base, and returning the answer…

Artificial Intelligence · Computer Science 2021-06-17 Yachen Tang , Haiyun Han , Xianmao Yu , Jing Zhao , Guangyi Liu , Longfei Wei

In recent years, neural networks have shown impressive performance gains on long-standing AI problems, and in particular, answering queries from natural language text. These advances raise the question of whether they can be extended to a…

Computation and Language · Computer Science 2020-10-15 James Thorne , Majid Yazdani , Marzieh Saeidi , Fabrizio Silvestri , Sebastian Riedel , Alon Halevy

As large language models (LLMs) continue to grow in size, their abilities to tackle complex tasks have significantly improved. However, issues such as hallucination and the lack of up-to-date knowledge largely remain unresolved. Knowledge…

Artificial Intelligence · Computer Science 2026-03-17 Lihui Liu

This study aims to optimize the existing retrieval-augmented generation model (RAG) by introducing a graph structure to improve the performance of the model in dealing with complex knowledge reasoning tasks. The traditional RAG model has…

Information Retrieval · Computer Science 2024-11-07 Yuxin Dong , Shuo Wang , Hongye Zheng , Jiajing Chen , Zhenhong Zhang , Chihang Wang

In conversational question answering, users express their information needs through a series of utterances with incomplete context. Typical ConvQA methods rely on a single source (a knowledge base (KB), or a text corpus, or a set of…

Information Retrieval · Computer Science 2023-07-19 Philipp Christmann , Rishiraj Saha Roy , Gerhard Weikum

While multi-modal models have successfully integrated information from image, video, and audio modalities, integrating graph modality into large language models (LLMs) remains unexplored. This discrepancy largely stems from the inherent…

Computation and Language · Computer Science 2023-10-13 Yuanchun Shen , Ruotong Liao , Zhen Han , Yunpu Ma , Volker Tresp

Multi-hop QA (Question Answering) is the task of finding the answer to a question across multiple documents. In recent years, a number of Deep Learning-based approaches have been proposed to tackle this complex task, as well as a few…

Computation and Language · Computer Science 2023-01-30 Yunjie He , Philip John Gorinski , Ieva Staliunaite , Pontus Stenetorp

Knowledge base question answering (KBQA)is an important task in Natural Language Processing. Existing approaches face significant challenges including complex question understanding, necessity for reasoning, and lack of large end-to-end…

The paper studies sequential reasoning over graph-structured data, which stands as a fundamental task in various trending fields like automated math problem solving and neural graph algorithm learning, attracting a lot of research interest.…

Artificial Intelligence · Computer Science 2024-12-13 Shuo Shi , Chao Peng , Chenyang Xu , Zhengfeng Yang

Visual Question answering is a challenging problem requiring a combination of concepts from Computer Vision and Natural Language Processing. Most existing approaches use a two streams strategy, computing image and question features that are…

Computer Vision and Pattern Recognition · Computer Science 2018-11-02 Will Norcliffe-Brown , Efstathios Vafeias , Sarah Parisot

Document Visual Question Answering (DocVQA) requires models to jointly understand textual semantics, spatial layout, and visual features. Current methods struggle with explicit spatial relationship modeling, inefficiency with…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Ahmad Mohammadshirazi , Pinaki Prasad Guha Neogi , Dheeraj Kulshrestha , Rajiv Ramnath

Purpose: The query language GraphQL has gained significant traction in recent years. In particular, it has recently gained the attention of the semantic web and graph database communities and is now often used as a means to query knowledge…

Databases · Computer Science 2024-09-20 Nikolaos Karalis , Alexander Bigerl , Axel-Cyrille Ngonga Ngomo

In the era of large language models (LLMs), efficient and accurate data retrieval has become increasingly crucial for the use of domain-specific or private data in the retrieval augmented generation (RAG). Neural graph databases (NGDBs)…

Databases · Computer Science 2024-06-19 Qi Hu , Haoran Li , Jiaxin Bai , Zihao Wang , Yangqiu Song

The integration of Large Language Models (LLMs) with Retrieval-Augmented Generation (RAG) has significantly advanced Knowledge Graph Question Answering (KGQA). However, existing LLM-driven KGQA systems act as stateless planners, generating…

Databases · Computer Science 2026-04-30 Yushi Sun , Lei Chen

Visual question answering (VQA) requires systems to perform concept-level reasoning by unifying unstructured (e.g., the context in question and answer; "QA context") and structured (e.g., knowledge graph for the QA context and scene;…

Computer Vision and Pattern Recognition · Computer Science 2023-09-18 Yanan Wang , Michihiro Yasunaga , Hongyu Ren , Shinya Wada , Jure Leskovec

The sheer volume of financial statements makes it difficult for humans to access and analyze a business's financials. Robust numerical reasoning likewise faces unique challenges in this domain. In this work, we focus on answering deep…

Vision-Language Models (VLMs) have demonstrated remarkable capabilities in interpreting visual layouts and text. However, a significant challenge remains in their ability to interpret robustly and reason over multi-tabular data presented as…

Computer Vision and Pattern Recognition · Computer Science 2025-06-16 Anshul Singh , Chris Biemann , Jan Strich

Much of the world's most valued data is stored in relational databases and data warehouses, where the data is organized into many tables connected by primary-foreign key relations. However, building machine learning models using this data…

Machine Learning · Computer Science 2023-12-11 Matthias Fey , Weihua Hu , Kexin Huang , Jan Eric Lenssen , Rishabh Ranjan , Joshua Robinson , Rex Ying , Jiaxuan You , Jure Leskovec

Knowledge Graph Question Answering (KGQA) has largely focused on entity-centric queries that return a single answer entity. However, many real-world questions are inherently relational, aiming to understand how entities are associated…

Artificial Intelligence · Computer Science 2026-02-09 Yinxu Tang , Chengsong Huang , Jiaxin Huang , William Yeoh
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