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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

Retrieval-Augmented Generation (RAG) has become the dominant approach for answering questions over large corpora. However, current datasets and methods are highly focused on cases where only a small part of the corpus (usually a few…

Computation and Language · Computer Science 2025-11-12 Omri Koshorek , Niv Granot , Aviv Alloni , Shahar Admati , Roee Hendel , Ido Weiss , Alan Arazi , Shay-Nitzan Cohen , Yonatan Belinkov

Recent advancements in retrieval-augmented generation (RAG) have enhanced large language models in question answering by integrating external knowledge. However, challenges persist in achieving global understanding and aligning responses…

Computation and Language · Computer Science 2025-06-24 Quanwei Tang , Sophia Yat Mei Lee , Junshuang Wu , Dong Zhang , Shoushan Li , Erik Cambria , Guodong Zhou

In recent years, accurately and quickly deploying medical large language models (LLMs) has become a trend. Among these, retrieval-augmented generation (RAG) has garnered attention due to rapid deployment and privacy protection. However, the…

Computation and Language · Computer Science 2025-08-06 Penglei Sun , Yixiang Chen , Xiang Li , Xiaowen Chu

This research addresses a new tool for data analysis known as Topological Data Analysis TDA It underlies an area of Mathematics known as Combinatorial Algebra or more recently Algebraic Topology which through making strong use of…

Statistics Theory · Mathematics 2021-06-29 Daniel Trejo Medina , Karla Sarai Jimenez

This paper addresses the issues of insufficient coverage, unstable results, and limited reliability in retrieval-augmented generation under complex knowledge environments, and proposes a confidence control method that integrates…

Computation and Language · Computer Science 2025-11-03 Xiaofan Guo , Yaxuan Luan , Yue Kang , Xiangchen Song , Jinxu Guo

Pre-trained language models (PLMs) have shown their effectiveness in multiple scenarios. However, KBQA remains challenging, especially regarding coverage and generalization settings. This is due to two main factors: i) understanding the…

Computation and Language · Computer Science 2022-10-25 Yiheng Shu , Zhiwei Yu , Yuhan Li , Börje F. Karlsson , Tingting Ma , Yuzhong Qu , Chin-Yew Lin

The rapid evolution of Retrieval-Augmented Generation (RAG) toward multimodal, high-stakes enterprise applications has outpaced the development of domain specific evaluation benchmarks. Existing datasets often rely on general-domain corpora…

Artificial Intelligence · Computer Science 2026-01-23 Chandan Kumar Sahu , Premith Kumar Chilukuri , Matthew Hetrich

Purpose: This paper aims to propose an integration of the analytic hierarchy process (AHP) and data envelopment analysis (DEA) methods in a multiattribute grey relational analysis (GRA) methodology in which the attribute weights are…

Optimization and Control · Mathematics 2017-02-01 Mohammad Sadegh Pakkar

\textsc{Lara} is a key-value algebra that aims at unifying linear and relational algebra with three types of operation abstraction. The study of \textsc{Lara}'s expressive ability reports that it can represent relational algebra and most…

Databases · Computer Science 2023-07-18 Hongxiao Li , Wanling Gao , Lei Wang , Jianfeng Zhan

Language agents powered by large language models (LLMs) have demonstrated remarkable capabilities in understanding, reasoning, and executing complex tasks. However, developing robust agents presents significant challenges: substantial…

Computation and Language · Computer Science 2025-06-02 Qianqian Zhang , Jiajia Liao , Heting Ying , Yibo Ma , Haozhan Shen , Jingcheng Li , Peng Liu , Lu Zhang , Chunxin Fang , Kyusong Lee , Ruochen Xu , Tiancheng Zhao

While data synthesis and distillation are promising strategies to enhance small language models, current approaches heavily rely on Large Language Models (LLMs), which suffer from high computational costs, environmental inefficiency, and…

Computation and Language · Computer Science 2025-04-22 Xin Gao , Qizhi Pei , Zinan Tang , Yu Li , Honglin Lin , Jiang Wu , Lijun Wu , Conghui He

Relational reasoning is the ability to infer relations that jointly bind multiple entities, attributes, or variables. This ability is central to scientific reasoning, but existing evaluations of relational reasoning in large language models…

Artificial Intelligence · Computer Science 2026-04-15 Lukas Fesser , Yasha Ektefaie , Ada Fang , Sham M. Kakade , Marinka Zitnik

Relational Networks (RN) as introduced by Santoro et al. (2017) have demonstrated strong relational reasoning capabilities with a rather shallow architecture. Its single-layer design, however, only considers pairs of information objects,…

Machine Learning · Computer Science 2018-11-06 Marius Jahrens , Thomas Martinetz

Heuristic search-based planning techniques are commonly used for motion planning on discretized spaces. The performance of these algorithms is heavily affected by the resolution at which the search space is discretized. Typically a fixed…

Robotics · Computer Science 2020-04-15 Wei Du , Fahad Islam , Maxim Likhachev

Randomized linear algebra (RLA) algorithms are a modern class of numerical linear algebra techniques that play an essential role in scientific computing and machine learning, with broad and growing adoption. However, their discovery remains…

Machine Learning · Computer Science 2026-05-19 Jinglong Xiong , Xiaotian Liu , Ruoxin Wang , Zihang Liu , Yefan Zhou , Yujun Yan , Yaoqing Yang

Without any doubt, the relational paradigm has been a huge success. At the same time, we believe that the time is ripe to rethink how database systems could look like if we designed them from scratch. Would we really end up with the same…

Databases · Computer Science 2025-04-18 Jens Dittrich

Graph-based Retrieval-Augmented Generation (RAG) has proven effective in integrating external knowledge into large language models (LLMs), improving their factual accuracy, adaptability, interpretability, and trustworthiness. A number of…

Information Retrieval · Computer Science 2026-04-28 Yingli Zhou , Yaodong Su , Youran Sun , Shu Wang , Taotao Wang , Runyuan He , Yongwei Zhang , Sicong Liang , Xilin Liu , Yuchi Ma , Yixiang Fang

Retrieval-augmented generation (RAG) extends large language models (LLMs) with external knowledge, but it must balance limited effective context, redundant retrieved evidence, and the loss of fine-grained facts under aggressive compression.…

Computation and Language · Computer Science 2026-04-24 Yiqiao Jin , Rachneet Kaur , Zhen Zeng , Sumitra Ganesh , Srijan Kumar

Formal Concept Analysis and its associated conceptual structures have been used to support exploratory search through conceptual navigation. Relational Concept Analysis (RCA) is an extension of Formal Concept Analysis to process relational…

Databases · Computer Science 2018-03-22 Alexandre Bazin , Jessie Carbonnel , Marianne Huchard , Giacomo Kahn