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The vision of $\Upsilon$-DB introduces deterministic scientific hypotheses as a kind of uncertain and probabilistic data, and opens some key technical challenges for enabling data-driven hypothesis management and analytics. The…

数据库 · 计算机科学 2014-12-01 Bernardo Gonçalves , Frederico C. Silva , Fabio Porto

Table structure recognition (TSR) and optical character recognition (OCR) play crucial roles in extracting structured data from tables in scientific documents. However, existing extraction frameworks built on top of TSR and OCR methods…

信息检索 · 计算机科学 2025-07-10 Kehinde Ajayi , Yi He , Jian Wu

An algorithm for structured database searching is presented and used to solve the set partition problem. O(n) oracle calls are required in order to obtain a solution, but the probability that this solution is optimal decreases exponentially…

量子物理 · 物理学 2007-05-23 Brian Murphy

Databases contain information about which relationships do and do not hold among entities. To make this information accessible for statistical analysis requires computing sufficient statistics that combine information from different…

机器学习 · 计算机科学 2014-10-23 Zhensong Qian , Oliver Schulte , Yan Sun

Causal fairness in databases is crucial to preventing biased and inaccurate outcomes in downstream tasks. While most prior work assumes a known causal model, recent efforts relax this assumption by enforcing additional constraints. However,…

机器学习 · 计算机科学 2026-03-27 Ying Zheng , Yangfan Jiang , Kian-Lee Tan

Representation learning is a fundamental building block for analyzing entities in a database. While the existing embedding learning methods are effective in various data mining problems, their applicability is often limited because these…

机器学习 · 计算机科学 2020-09-24 Chin-Chia Michael Yeh , Dhruv Gelda , Zhongfang Zhuang , Yan Zheng , Liang Gou , Wei Zhang

Data integration is a notoriously difficult and heuristic-driven process, especially when ground-truth data are not readily available. This paper presents a measure of uncertainty by providing maximal and minimal ranges of a query outcome…

数据库 · 计算机科学 2023-09-12 Deniz Turkcapar , Sanjay Krishnan

The Fuzzy Modeling has been applied in a wide variety of fields such as Engineering and Management Sciences and Social Sciences to solve a number Decision Making Problems which involve impreciseness, uncertainty and vagueness in data. In…

人工智能 · 计算机科学 2013-04-29 Arindam Chaudhuri , Kajal De , Dipak Chatterjee

Knowledge graphs represent real-world entities and their relations in a semantically-rich structure supported by ontologies. Exploring this data with machine learning methods often relies on knowledge graph embeddings, which produce latent…

机器学习 · 计算机科学 2023-06-23 Rita T. Sousa , Sara Silva , Catia Pesquita

Database migration is a key task in software modernization, increasingly involving transformations across heterogeneous data models such as relational and NoSQL systems. Existing approaches are typically designed for specific source-target…

数据库 · 计算机科学 2026-04-27 María J. Ortín , José R. Hoyos , Jesus García-Molina

Multi-model databases are designed to store, manage, and query data in various models, such as relational, hierarchical, and graph data, simultaneously. In this paper, we provide a theoretical basis for querying categorical databases. We…

数据库 · 计算机科学 2026-03-12 Jiaheng Lu

Relation linking is essential to enable question answering over knowledge bases. Although there are various efforts to improve relation linking performance, the current state-of-the-art methods do not achieve optimal results, therefore,…

Probabilistic record linkage (PRL) is the process of determining which records in two databases correspond to the same underlying entity in the absence of a unique identifier. Bayesian solutions to this problem provide a powerful mechanism…

统计方法学 · 统计学 2017-12-05 Brendan S. McVeigh , Jared S. Murray

The approach given by Grover can be generalised to set an upper complexity limit to the basic operations of relational algebra on a quantum computer. Except in special cases where indices can be used on a classical machine, the quantum…

量子物理 · 物理学 2007-05-23 Paul Cockshott

Language-integrated query is a powerful programming construct allowing database queries and ordinary program code to interoperate seamlessly and safely. Language-integrated query techniques rely on classical results about the nested…

编程语言 · 计算机科学 2023-06-22 Wilmer Ricciotti , James Cheney

Analyzing relational languages by their logical expressiveness is well understood. Something not well understood or even formalized is the vague concept of relational query patterns. What are query patterns? And how can we reason about…

数据库 · 计算机科学 2022-03-15 Wolfgang Gatterbauer , Cody Dunne , Mirek Riedewald

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…

Traditional database queries follow a simple model: they define constraints that each tuple in the result must satisfy. This model is computationally efficient, as the database system can evaluate the query conditions on each tuple…

数据库 · 计算机科学 2015-12-17 Matteo Brucato , Juan Felipe Beltran , Azza Abouzied , Alexandra Meliou

Computational mechanisms for uncertainty management must support interactive and incremental problem formulation, inference, hypothesis testing, and decision making. However, most current uncertainty inference systems concentrate primarily…

人工智能 · 计算机科学 2013-04-10 Bruce D'Ambrosio

Top-$k$ queries allow end-users to focus on the most important (top-$k$) answers amongst those which satisfy the query. In traditional databases, a user defined score function assigns a score value to each tuple and a top-$k$ query returns…

数据库 · 计算机科学 2010-07-30 Manish Patil , Rahul Shah , Sharma V. Thankachan