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Keyphrase generation is the task of generating phrases (keyphrases) that summarize the main topics of a given document. Keyphrases can be either present or absent from the given document. While the extraction of present keyphrases has…

Computation and Language · Computer Science 2022-10-25 Jishnu Ray Chowdhury , Seoyeon Park , Tuhin Kundu , Cornelia Caragea

Reinforcement learning (RL) has become a promising paradigm for optimizing Retrieval-Augmented Generation (RAG) in complex reasoning tasks. However, traditional outcome-based RL approaches often suffer from reward sparsity and inefficient…

Artificial Intelligence · Computer Science 2026-01-30 Zhao Wang , Ziliang Zhao , Zhicheng Dou

In this work we propose a novel end-to-end multi-stage Knowledge Graph (KG) generation system from textual inputs, separating the overall process into two stages. The graph nodes are generated first using pretrained language model, followed…

Computation and Language · Computer Science 2022-11-22 Igor Melnyk , Pierre Dognin , Payel Das

Question generation over knowledge bases (KBQG) aims at generating natural-language questions about a subgraph, i.e. a set of (connected) triples. Two main challenges still face the current crop of encoder-decoder-based methods, especially…

Computation and Language · Computer Science 2020-10-26 Sheng Bi , Xiya Cheng , Yuan-Fang Li , Yongzhen Wang , Guilin Qi

Retrieval Augmented Generation (RAG) has gradually emerged as a promising paradigm for enhancing the accuracy and factual consistency of content generated by large language models (LLMs). However, existing RAG studies primarily focus on…

Information Retrieval · Computer Science 2025-07-24 Qikai Wei , Huansheng Ning , Chunlong Han , Jianguo Ding

Knowledge graphs (KGs) enhance the performance of large language models (LLMs) and search engines by providing structured, interconnected data that improves reasoning and context-awareness. However, KGs only focus on text data, thereby…

Computation and Language · Computer Science 2024-08-09 Khai Le-Duc , Quy-Anh Dang , Tan-Hanh Pham , Truong-Son Hy

Keyphrase generation aims to summarize long documents with a collection of salient phrases. Deep neural models have demonstrated a remarkable success in this task, capable of predicting keyphrases that are even absent from a document.…

Computation and Language · Computer Science 2021-04-20 Xianjie Shen , Yinghan Wang , Rui Meng , Jingbo Shang

The rapid evolution of communication technologies has led to an explosion of standards, rendering traditional expert-dependent consultation methods inefficient and slow. To address this challenge, we propose \textbf{KG2QA}, a question…

Computation and Language · Computer Science 2025-10-16 Zhongze Luo , Weixuan Wan , Tianya Zhang , Dan Wang , Xiaoying Tang

Automated code review comment generation (RCG) aims to assist developers by automatically producing natural language feedback for code changes. Existing approaches are primarily either generation-based, using pretrained language models, or…

Software Engineering · Computer Science 2025-06-16 Hyunsun Hong , Jongmoon Baik

Reinforcement Learning with Human Feedback (RLHF) has proven effective in image generation field guided by reward models to align human preferences. Motivated by this, adapting RLHF for Image Super-Resolution (ISR) tasks has shown promise…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Yidi Liu , Zihao Fan , Jie Huang , Jie Xiao , Dong Li , Wenlong Zhang , Lei Bai , Xueyang Fu , Zheng-Jun Zha

Large Language Models (LLMs) demonstrate strong reasoning abilities but face limitations such as hallucinations and outdated knowledge. Knowledge Graph (KG)-based Retrieval-Augmented Generation (RAG) addresses these issues by grounding LLM…

Computation and Language · Computer Science 2025-03-04 Mufei Li , Siqi Miao , Pan Li

Question generation (QG) is a natural language generation task where a model is trained to ask questions corresponding to some input text. Most recent approaches frame QG as a sequence-to-sequence problem and rely on additional features and…

Computation and Language · Computer Science 2021-08-16 Luis Enrico Lopez , Diane Kathryn Cruz , Jan Christian Blaise Cruz , Charibeth Cheng

Large language models (LLMs) are increasingly being used to extract structured knowledge from unstructured financial text. Although prior studies have explored various extraction methods, there is no universal benchmark or unified…

Computational Finance · Quantitative Finance 2026-03-23 Fabrizio Dimino , Abhinav Arun , Bhaskarjit Sarmah , Stefano Pasquali

The Adobe Experience Platform AI Assistant is a conversational tool that enables organizations to interact seamlessly with proprietary enterprise data through a chatbot. However, due to access restrictions, Large Language Models (LLMs)…

Information Retrieval · Computer Science 2025-02-24 Manisha Mukherjee , Sungchul Kim , Xiang Chen , Dan Luo , Tong Yu , Tung Mai

Knowledge Graph based Retrieval-Augmented Generation (KG-RAG) is a technique that enhances Large Language Model (LLM) inference in tasks like Question Answering (QA) by retrieving relevant information from knowledge graphs (KGs). However,…

Artificial Intelligence · Computer Science 2025-09-01 Dongzhuoran Zhou , Yuqicheng Zhu , Xiaxia Wang , Yuan He , Jiaoyan Chen , Steffen Staab , Evgeny Kharlamov

Knowledge graph (KG) is an abstraction that can be extracted from text corpora and used for in-depth reasoning. Prior work has leveraged KGs to fine-tune language models (LMs), enabling domain-specific superintelligence. In this work, we…

Computation and Language · Computer Science 2026-05-28 Jake Stephen , Niraj K. Jha

Knowledge Graph (KG) can effectively integrate valuable information from massive data, and thus has been rapidly developed and widely used in many fields. Traditional KG construction methods rely on manual annotation, which often consumes a…

Computation and Language · Computer Science 2026-04-22 Qiubai Zhu , Qingwang Wang , Haibin Yuan , Wei Chen , Tao Shen

Generative retrieval (GR) models encode a corpus within model parameters and generate relevant document identifiers directly for a given query. While this paradigm shows promise in retrieval tasks, existing GR models struggle with complex…

Information Retrieval · Computer Science 2026-03-16 Steven Dong , Yubao Tang , Maarten de Rijke

Despite their remarkable capabilities, large language models (LLMs) often produce responses containing factual inaccuracies due to their sole reliance on the parametric knowledge they encapsulate. Retrieval-Augmented Generation (RAG), an ad…

Computation and Language · Computer Science 2023-10-19 Akari Asai , Zeqiu Wu , Yizhong Wang , Avirup Sil , Hannaneh Hajishirzi

Generative recommendations (GR), which usually include item tokenizers and generative Large Language Models (LLMs), have demonstrated remarkable success across a wide range of scenarios. The majority of existing research efforts primarily…

Information Retrieval · Computer Science 2025-11-25 Yejing Wang , Shengyu Zhou , Jinyu Lu , Qidong Liu , Xinhang Li , Wenlin Zhang , Feng Li , Pengjie Wang , Jian Xu , Bo Zheng , Xiangyu Zhao