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The theory of two binary relations has the strong amalgamation property when the first relation is assumed to be coarser than the second relation, and each relation satisfies a chosen set of properties from the following list: transitivity,…

Logic · Mathematics 2023-01-31 Paolo Lipparini

We provide a survey on relational models. Relational models describe complete networked {domains by taking into account global dependencies in the data}. Relational models can lead to more accurate predictions if compared to non-relational…

Artificial Intelligence · Computer Science 2016-09-13 Volker Tresp , Maximilian Nickel

We study the problem of computing an embedding of the tuples of a relational database in a manner that is extensible to dynamic changes of the database. In this problem, the embedding should be stable in the sense that it should not change…

Databases · Computer Science 2022-09-28 Jan Toenshoff , Neta Friedman , Martin Grohe , Benny Kimelfeld

We report an evaluation of the effectiveness of the existing knowledge base embedding models for relation prediction and for relation extraction on a wide range of benchmarks. We also describe a new benchmark, which is much larger and…

Computation and Language · Computer Science 2018-02-07 Peng Xu , Denilson Barbosa

Indices and materialized views are physical structures that accelerate data access in data warehouses. However, these data structures generate some maintenance overhead. They also share the same storage space. The existing studies about…

Databases · Computer Science 2007-07-10 Nora Maiz , Kamel Aouiche , Jérôme Darmont

The Blackboard Architecture provides a mechanism for storing data and logic and using it to make decisions that impact the application environment that the Blackboard Architecture network models. While rule-fact-action networks can…

Artificial Intelligence · Computer Science 2023-06-08 Jordan Milbrath , Jeremy Straub

Intuitionistic logic programming provides the notion of embedded implication in rule bodies, which can be used to reason about a current database modified by the antecedent. This can be applied to a system that translates SQL to Datalog to…

Programming Languages · Computer Science 2016-09-23 Fernando Sáenz-Pérez

This tutorial overviews the state of the art in learning models over relational databases and makes the case for a first-principles approach that exploits recent developments in database research. The input to learning classification and…

Databases · Computer Science 2019-11-18 Maximilian Schleich , Dan Olteanu , Mahmoud Abo-Khamis , Hung Q. Ngo , XuanLong Nguyen

Introducing common shocks is a popular dependence modelling approach, with some recent applications in loss reserving. The main advantage of this approach is the ability to capture structural dependence coming from known relationships. In…

Risk Management · Quantitative Finance 2021-07-01 Benjamin Avanzi , Gregory Clive Taylor , Phuong Anh Vu , Bernard Wong

We describe a new approach to data modeling, called the concept-oriented model (COM), and a novel concept-oriented query language (COQL). The model is based on three principles: duality principle postulates that any element is a couple…

Databases · Computer Science 2010-08-03 Alexandr Savinov

Geometric relational embeddings map relational data as geometric objects that combine vector information suitable for machine learning and structured/relational information for structured/relational reasoning, typically in low dimensions.…

Artificial Intelligence · Computer Science 2023-04-25 Bo Xiong , Mojtaba Nayyeri , Ming Jin , Yunjie He , Michael Cochez , Shirui Pan , Steffen Staab

A structure called a decision making problem is considered. The set of outcomes (consequences) is partially ordered according to the decision maker's preferences. The problem is how these preferences affect a decision maker to prefer one of…

Category Theory · Mathematics 2007-05-23 Victor V. Rozen , Grigori Zhitomirski

Dedicated to Tony Hoare. In a paper published in 1972 Hoare articulated the fundamental notions of hiding invariants and simulations. Hiding: invariants on encapsulated data representations need not be mentioned in specifications that…

Logic in Computer Science · Computer Science 2022-07-21 Anindya Banerjee , Ramana Nagasamudram , David A. Naumann , Mohammad Nikouei

Factorised databases are relational databases that use compact factorised representations at the physical layer to reduce data redundancy and boost query performance. This paper introduces FDB, an in-memory query engine for…

Databases · Computer Science 2012-03-14 Nurzhan Bakibayev , Dan Olteanu , Jakub Závodný

Heretofore, neural networks with external memory are restricted to single memory with lossy representations of memory interactions. A rich representation of relationships between memory pieces urges a high-order and segregated relational…

Machine Learning · Computer Science 2020-06-12 Hung Le , Truyen Tran , Svetha Venkatesh

The natural join and the inner union combine in different ways tables of a relational database. Tropashko [18] observed that these two operations are the meet and join in a class of lattices-called the relational lattices- and proposed…

Logic in Computer Science · Computer Science 2016-02-29 Luigi Santocanale

There has been significant progress in creating machine learning models that identify objects in scenes along with their associated attributes and relationships; however, there is a large gap between the best models and human capabilities.…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Tyler L. Hayes , Maximilian Nickel , Christopher Kanan , Ludovic Denoyer , Arthur Szlam

Keyword search against structured databases has become a popular topic of investigation, since many users find structured queries too hard to express, and enjoy the freedom of a ``Google-like'' query box into which search terms can be…

Databases · Computer Science 2009-09-15 Arnab Nandi , H V Jagadish

State-of-the-art recommendation algorithms -- especially the collaborative filtering (CF) based approaches with shallow or deep models -- usually work with various unstructured information sources for recommendation, such as textual…

Information Retrieval · Computer Science 2018-09-18 Yongfeng Zhang , Qingyao Ai , Xu Chen , Pengfei Wang

Searching learning or rules in relational database for data mining purposes with characteristic or classification/discriminant rule in attribute oriented induction technique can be quicker, easy, and simple with simple SQL statement. With…

Databases · Computer Science 2010-06-10 Spits Warnars
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