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Large Language Models (LLMs) have shown remarkable capabilities across diverse tasks, yet they face inherent limitations such as constrained parametric knowledge and high retraining costs. Retrieval-Augmented Generation (RAG) augments the…

信息检索 · 计算机科学 2025-08-26 Leqian Li , Dianxi Shi , Jialu Zhou , Xinyu Wei , Mingyue Yang , Songchang Jin , Shaowu Yang

Conventional Knowledge Graph Completion (KGC) assumes that all test entities appear during training. However, in real-world scenarios, Knowledge Graphs (KG) evolve fast with out-of-knowledge-graph (OOKG) entities added frequently, and we…

计算与语言 · 计算机科学 2020-09-29 Damai Dai , Hua Zheng , Fuli Luo , Pengcheng Yang , Baobao Chang , Zhifang Sui

In today's rapidly evolving landscape of Artificial Intelligence, large language models (LLMs) have emerged as a vibrant research topic. LLMs find applications in various fields and contribute significantly. Despite their powerful language…

计算与语言 · 计算机科学 2024-09-10 Tuan Bui , Oanh Tran , Phuong Nguyen , Bao Ho , Long Nguyen , Thang Bui , Tho Quan

Knowledge Graph Completion is a task of expanding the knowledge graph/base through estimating possible entities, or proper nouns, that can be connected using a set of predefined relations, or verb/predicates describing interconnections of…

计算与语言 · 计算机科学 2021-01-25 Tong Chen , Sirou Zhu , Yiming Wen , Zhaomin Zheng

Knowledge graphs (KGs) have become a valuable asset for many AI applications. Although some KGs contain plenty of facts, they are widely acknowledged as incomplete. To address this issue, many KG completion methods are proposed. Among them,…

信息检索 · 计算机科学 2022-01-24 Jiacheng Huang , Yao Zhao , Wei Hu , Zhen Ning , Qijin Chen , Xiaoxia Qiu , Chengfu Huo , Weijun Ren

The generation of questions and answers (QA) from knowledge graphs (KG) plays a crucial role in the development and testing of educational platforms, dissemination tools, and large language models (LLM). However, existing approaches often…

计算与语言 · 计算机科学 2025-11-17 Sania Nayab , Marco Simoni , Giulio Rossolini , Andrea Saracino

Large Language Models (LLMs) have showcased impressive reasoning abilities, but often suffer from hallucinations or outdated knowledge. Knowledge Graph (KG)-based Retrieval-Augmented Generation (RAG) remedies these shortcomings by grounding…

信息检索 · 计算机科学 2025-05-29 Martin Böckling , Heiko Paulheim , Andreea Iana

In environments with sparse or delayed rewards, reinforcement learning (RL) incurs high sample complexity due to the large number of interactions needed for learning. This limitation has motivated the use of large language models (LLMs) for…

机器学习 · 计算机科学 2026-02-23 Narjes Nourzad , Carlee Joe-Wong

Personalized recommender systems play a crucial role in direct marketing, particularly in financial services, where delivering relevant content can enhance customer engagement and promote informed decision-making. This study explores…

This study develops a question-answering system based on Retrieval-Augmented Generation (RAG) using Chinese Wikipedia and Lawbank as retrieval sources. Using TTQA and TMMLU+ as evaluation datasets, the system employs BGE-M3 for dense vector…

信息检索 · 计算机科学 2025-01-17 Te-Lun Yang , Jyi-Shane Liu , Yuen-Hsien Tseng , Jyh-Shing Roger Jang

The advent of large language models (LLMs) has allowed numerous applications, including the generation of queried responses, to be leveraged in chatbots and other conversational assistants. Being trained on a plethora of data, LLMs often…

计算与语言 · 计算机科学 2025-05-16 Deeksha Prahlad , Chanhee Lee , Dongha Kim , Hokeun Kim

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…

计算与语言 · 计算机科学 2026-04-08 Thi Thu Uyen Hoang , Meenakshi Rajendran , Kun Zhang , Yuhan Wu , Viet Anh Nguyen

Visual Question Answering (VQA) focuses on providing answers to natural language questions by utilizing information from images. Although cutting-edge multimodal large language models (MLLMs) such as GPT-4o achieve strong performance on VQA…

计算机视觉与模式识别 · 计算机科学 2025-07-09 Zhengxuan Zhang , Yin Wu , Yuyu Luo , Nan Tang

Generalization to out of distribution tasks in reinforcement learning is a challenging problem. One successful approach improves generalization by conditioning policies on task or environment descriptions that provide information about the…

机器学习 · 计算机科学 2022-05-27 Kolby Nottingham , Alekhya Pyla , Sameer Singh , Roy Fox

Retrieval-Augmented Generation (RAG) has proven effective in integrating external knowledge into large language models (LLMs) for solving question-answer (QA) tasks. The state-of-the-art RAG approaches often use the graph data as the…

信息检索 · 计算机科学 2026-05-12 Shu Wang , Yixiang Fang , Yingli Zhou , Xilin Liu , Yuchi Ma

Optimizing queries for Retrieval-Augmented Generation (RAG) systems poses a significant challenge, particularly across diverse modal indices. We introduce RL-QR, a novel annotation-free reinforcement learning framework for query rewriting…

计算机视觉与模式识别 · 计算机科学 2025-12-15 Sungguk Cha , DongWook Kim , Taeseung Hahn , Mintae Kim , Youngsub Han , Byoung-Ki Jeon

Retrieval-Augmented Generation (RAG) systems show remarkable potential as question answering tools in the K-12 Education domain, where knowledge is typically queried within the restricted scope of authoritative textbooks. However,…

计算与语言 · 计算机科学 2025-07-22 Tianshi Zheng , Weihan Li , Jiaxin Bai , Weiqi Wang , Yangqiu Song

Industrial advertising question answering (QA) is a high-stakes task in which hallucinated content, particularly fabricated URLs, can lead to financial loss, compliance violations, and legal risk. Although Retrieval-Augmented Generation…

计算与语言 · 计算机科学 2026-02-27 Wenwei Li , Ming Xu , Tianle Xia , Lingxiang Hu , Yiding Sun , Linfang Shang , Liqun Liu , Peng Shu , Huan Yu , Jie Jiang

Recently, large language models (LLMs) have demonstrated impressive performance in Knowledge Graph Question Answering (KGQA) tasks, which aim to find answers based on knowledge graphs (KGs) for natural language questions. Existing…

计算与语言 · 计算机科学 2025-05-20 Xiao Long , Liansheng Zhuang , Chen Shen , Shaotian Yan , Yifei Li , Shafei Wang

Large language models like ChatGPT are increasingly used in classrooms, but they often provide outdated or fabricated information that can mislead students. Retrieval Augmented Generation (RAG) improves reliability of LLMs by grounding…

人工智能 · 计算机科学 2025-09-10 Amay Jain , Liu Cui , Si Chen