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Link prediction has aroused extensive attention since it can both discover hidden connections and predict future links in the networks. Many unsupervised link prediction algorithms have been proposed to find these links in a variety of…

社会与信息网络 · 计算机科学 2021-05-10 Jingwei Wang , Yunlong Ma , Yun Yuan

We provide methods for in-database support of decision making under uncertainty. Many important decision problems correspond to selecting a package (bag of tuples in a relational database) that jointly satisfy a set of constraints while…

数据库 · 计算机科学 2021-03-12 Matteo Brucato , Nishant Yadav , Azza Abouzied , Peter J. Haas , Alexandra Meliou

Inductive reasoning is a core problem-solving capacity: humans can identify underlying principles from a few examples, which robustly generalize to novel scenarios. Recent work evaluates large language models (LLMs) on inductive reasoning…

机器学习 · 计算机科学 2024-06-03 Ruocheng Wang , Eric Zelikman , Gabriel Poesia , Yewen Pu , Nick Haber , Noah D. Goodman

Probabilistic programming languages (PPLs) are an expressive means of representing and reasoning about probabilistic models. The computational challenge of probabilistic inference remains the primary roadblock for applying PPLs in practice.…

编程语言 · 计算机科学 2020-10-19 Steven Holtzen , Guy Van den Broeck , Todd Millstein

We introduce an abductive method for a coherent integration of independent data-sources. The idea is to compute a list of data-facts that should be inserted to the amalgamated database or retracted from it in order to restore its…

人工智能 · 计算机科学 2011-07-04 O. Arieli , M. Bruynooghe , M. Denecker , B. Van Nuffelen

Selectivity estimation - the problem of estimating the result size of queries - is a fundamental problem in databases. Accurate estimation of query selectivity involving multiple correlated attributes is especially challenging. Poor…

数据库 · 计算机科学 2019-06-19 Shohedul Hasan , Saravanan Thirumuruganathan , Jees Augustine , Nick Koudas , Gautam Das

Joint entity and relation extraction has been a core task in the field of information extraction. Recent approaches usually consider the extraction of relational triples from a stereoscopic perspective, either learning a relation-specific…

计算与语言 · 计算机科学 2022-11-04 Zeqi Tan , Yongliang Shen , Xuming Hu , Wenqi Zhang , Xiaoxia Cheng , Weiming Lu , Yueting Zhuang

APIs have intricate relations that can be described in text and represented as knowledge graphs to aid software engineering tasks. Existing relation extraction methods have limitations, such as limited API text corpus and affected by the…

软件工程 · 计算机科学 2023-11-03 Qing Huang , Yanbang Sun , Zhenchang Xing , Yuanlong Cao , Jieshan Chen , Xiwei Xu , Huan Jin , Jiaxing Lu

Most enterprise data is distributed in multiple relational databases with expert-designed schema. Using traditional single-table machine learning techniques over such data not only incur a computational penalty for converting to a 'flat'…

机器学习 · 计算机科学 2012-03-14 Geetha Manjunatha , M Narasimha Murty , Dinkar Sitaram

A common approach to data analysis involves understanding and manipulating succinct representations of data. In earlier work, we put forward a succinct representation system for relational data called factorised databases and reported on…

数据库 · 计算机科学 2013-07-02 Nurzhan Bakibayev , Tomáš Kočiský , Dan Olteanu , Jakub Závodný

We describe a variational approximation method for efficient inference in large-scale probabilistic models. Variational methods are deterministic procedures that provide approximations to marginal and conditional probabilities of interest.…

人工智能 · 计算机科学 2011-05-30 T. S. Jaakkola , M. I. Jordan

Temporal Point Processes (TPP) with partial likelihoods involving a latent structure often entail an intractable marginalization, thus making inference hard. We propose a novel approach to Maximum Likelihood Estimation (MLE) involving…

机器学习 · 计算机科学 2019-12-20 Amrith Setlur , Barnabás Póczós

Relevance modeling is a critical component for enhancing user experience in search engines, with the primary objective of identifying items that align with users' queries. Traditional models only rely on the semantic congruence between…

信息检索 · 计算机科学 2024-12-09 Zeyuan Chen , Haiyan Wu , Kaixin Wu , Wei Chen , Mingjie Zhong , Jia Xu , Zhongyi Liu , Wei Zhang

Preference queries incorporate the notion of binary preference relation into relational database querying. Instead of returning all the answers, such queries return only the best answers, according to a given preference relation. Preference…

数据库 · 计算机科学 2010-09-01 Denis Mindolin , Jan Chomicki

Pseudo-relevance feedback (PRF) can enhance average retrieval effectiveness over a sufficiently large number of queries. However, PRF often introduces a drift into the original information need, thus hurting the retrieval effectiveness of…

信息检索 · 计算机科学 2024-01-23 Suchana Datta , Debasis Ganguly , Sean MacAvaney , Derek Greene

This article presents a survey of work on lifted graphical models. We review a general form for a lifted graphical model, a par-factor graph, and show how a number of existing statistical relational representations map to this formalism. We…

人工智能 · 计算机科学 2011-08-29 Lilyana Mihalkova , Lise Getoor

We prove that it is NP-hard to properly PAC learn decision trees with queries, resolving a longstanding open problem in learning theory (Bshouty 1993; Guijarro-Lavin-Raghavan 1999; Mehta-Raghavan 2002; Feldman 2016). While there has been a…

计算复杂性 · 计算机科学 2023-07-11 Caleb Koch , Carmen Strassle , Li-Yang Tan

Accurate prediction of continuous properties is essential to many scientific and engineering tasks. Although deep-learning regressors excel with abundant labels, their accuracy deteriorates in data-scarce regimes. We introduce RankRefine, a…

机器学习 · 计算机科学 2025-10-02 Kevin Tirta Wijaya , Michael Sun , Minghao Guo , Hans-Peter Seidel , Wojciech Matusik , Vahid Babaei

Pairwise re-ranking models predict which of two documents is more relevant to a query and then aggregate a final ranking from such preferences. This is often more effective than pointwise re-ranking models that directly predict a relevance…

信息检索 · 计算机科学 2022-07-12 Lukas Gienapp , Maik Fröbe , Matthias Hagen , Martin Potthast

Relation extraction aims to classify the relationships between two entities into pre-defined categories. While previous research has mainly focused on sentence-level relation extraction, recent studies have expanded the scope to…

计算与语言 · 计算机科学 2023-10-16 Chufan Gao , Xulin Fan , Jimeng Sun , Xuan Wang
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