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Accurate Quality of Service (QoS) prediction is fundamental to service computing, providing essential data-driven guidance for service selection and ensuring superior user experiences. However, prevalent approaches, particularly Graph…

机器学习 · 计算机科学 2025-12-08 Guanchen Du , Jianlong Xu , Wei Wei

Knowledge representation learning has been commonly adopted to incorporate knowledge graph (KG) into various online services. Although existing knowledge representation learning methods have achieved considerable performance improvement,…

机器学习 · 计算机科学 2022-05-18 Binbin Hu , Zhiyang Hu , Zhiqiang Zhang , Jun Zhou , Chuan Shi

Retrieval-augmented generation (RAG) incorporates external knowledge into large language models (LLMs), improving their adaptability to downstream tasks and enabling information updates. Surprisingly, recent empirical evidence demonstrates…

计算与语言 · 计算机科学 2026-01-08 Yang Sun , Zhiyong Xie , Lixin Zou , Dan Luo , Min Tang , Xiangyu Zhao , Yunwei Zhao , Xixun Lin , Yanxiong Lu , Chenliang Li

Source detection in graphs has demonstrated robust efficacy in the domain of rumor source identification. Although recent solutions have enhanced performance by leveraging deep neural networks, they often require complete user data. In this…

社会与信息网络 · 计算机科学 2024-05-31 Le Cheng , Peican Zhu , Keke Tang , Chao Gao , Zhen Wang

Existing Visual Question Answering (VQA) models have explored various visual relationships between objects in the image to answer complex questions, which inevitably introduces irrelevant information brought by inaccurate object detection…

计算机视觉与模式识别 · 计算机科学 2022-04-05 Yuxi Qian , Yuncong Hu , Ruonan Wang , Fangxiang Feng , Xiaojie Wang

Retrieval augmented generation has revolutionized large language model (LLM) outputs by providing factual supports. Nevertheless, it struggles to capture all the necessary knowledge for complex reasoning questions. Existing retrieval…

计算与语言 · 计算机科学 2024-10-21 Zijian Li , Qingyan Guo , Jiawei Shao , Lei Song , Jiang Bian , Jun Zhang , Rui Wang

The goal of multi-modal learning is to use complimentary information on the relevant task provided by the multiple modalities to achieve reliable and robust performance. Recently, deep learning has led significant improvement in multi-modal…

计算机视觉与模式识别 · 计算机科学 2018-11-05 Jaekyum Kim , Junho Koh , Yecheol Kim , Jaehyung Choi , Youngbae Hwang , Jun Won Choi

Open-world Question Answering (OW-QA) over knowledge graphs (KGs) aims to answer questions over incomplete or evolving KGs. Traditional KGQA assumes a closed world where answers must exist in the KG, limiting real-world applicability. In…

计算与语言 · 计算机科学 2026-04-16 Hussein Abdallah , Ibrahim Abdelaziz , Panos Kalnis , Essam Mansour

In customer service technical support, swiftly and accurately retrieving relevant past issues is critical for efficiently resolving customer inquiries. The conventional retrieval methods in retrieval-augmented generation (RAG) for large…

信息检索 · 计算机科学 2024-05-07 Zhentao Xu , Mark Jerome Cruz , Matthew Guevara , Tie Wang , Manasi Deshpande , Xiaofeng Wang , Zheng Li

Knowledge distillation (KD) techniques have emerged as a powerful tool for transferring expertise from complex teacher models to lightweight student models, particularly beneficial for deploying high-performance models in…

机器学习 · 计算机科学 2025-10-28 Paul Agbaje , Arkajyoti Mitra , Afia Anjum , Pranali Khose , Ebelechukwu Nwafor , Habeeb Olufowobi

Knowledge Graph Embedding (KGE) techniques are crucial in learning compact representations of entities and relations within a knowledge graph, facilitating efficient reasoning and knowledge discovery. While existing methods typically focus…

计算与语言 · 计算机科学 2024-10-29 Pengcheng Jiang , Lang Cao , Cao Xiao , Parminder Bhatia , Jimeng Sun , Jiawei Han

Knowledge distillation (KD) has shown to be effective to boost the performance of graph neural networks (GNNs), where the typical objective is to distill knowledge from a deeper teacher GNN into a shallower student GNN. However, it is often…

机器学习 · 计算机科学 2023-11-17 Kaituo Feng , Yikun Miao , Changsheng Li , Ye Yuan , Guoren Wang

Knowledge Graph Question Answering aims to answer natural language questions by reasoning over structured knowledge graphs. While large language models have advanced KGQA through their strong reasoning capabilities, existing methods…

Narrowing the performance gap between optimal and feasible detection in inter-symbol interference (ISI) channels, this paper proposes to use graph neural networks (GNNs) for detection that can also be used to perform joint detection and…

信息论 · 计算机科学 2025-07-16 Jannis Clausius , Marvin Rübenacke , Daniel Tandler , Stephan ten Brink

Knowledge-intensive tasks, particularly open-domain question answering (ODQA), document reranking, and retrieval-augmented language modeling, require a balance between retrieval accuracy and generative flexibility. Traditional retrieval…

计算与语言 · 计算机科学 2025-02-28 Abdelrahman Abdallah , Jamshid Mozafari , Bhawna Piryani , Mohammed Ali , Adam Jatowt

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…

计算与语言 · 计算机科学 2022-11-22 Igor Melnyk , Pierre Dognin , Payel Das

In this work, we present an end-to-end Knowledge Graph Question Answering (KGQA) system named GETT-QA. GETT-QA uses T5, a popular text-to-text pre-trained language model. The model takes a question in natural language as input and produces…

计算与语言 · 计算机科学 2023-03-29 Debayan Banerjee , Pranav Ajit Nair , Ricardo Usbeck , Chris Biemann

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…

计算与语言 · 计算机科学 2025-10-16 Zhongze Luo , Weixuan Wan , Tianya Zhang , Dan Wang , Xiaoying Tang

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…

信息检索 · 计算机科学 2025-07-24 Qikai Wei , Huansheng Ning , Chunlong Han , Jianguo Ding

The lightweight crowd counting models, in particular knowledge distillation (KD) based models, have attracted rising attention in recent years due to their superiority on computational efficiency and hardware requirement. However, existing…

机器学习 · 计算机科学 2022-06-14 Yunxin Liu , Qiaosi Yi , Jinshan Zeng