Size bounds for factorised representations of query results
We study two succinct representation systems for relational data based on relational algebra
expressions with unions, Cartesian products, and singleton relations: f-representations …
expressions with unions, Cartesian products, and singleton relations: f-representations …
Incomplete data management: a survey
Incomplete data accompanies our life processes and covers almost all fields of scientific
studies, as a result of delivery failure, no power of battery, accidental loss, etc. However, how …
studies, as a result of delivery failure, no power of battery, accidental loss, etc. However, how …
Factorized databases
D Olteanu, M Schleich - ACM SIGMOD Record, 2016 - dl.acm.org
This paper overviews factorized databases and their application to machine learning. The
key observation underlying this work is that state-of-the-art relational query processing …
key observation underlying this work is that state-of-the-art relational query processing …
Semantics and evaluation of top-k queries in probabilistic databases
X Zhang, J Chomicki - Distributed and parallel databases, 2009 - Springer
We study here fundamental issues involved in top-k query evaluation in probabilistic
databases. We consider simple probabilistic databases in which probabilities are associated …
databases. We consider simple probabilistic databases in which probabilities are associated …
Aggregation and ordering in factorised databases
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 …
representations of data. In earlier work, we put forward a succinct representation system for …
Sprout: Lazy vs. eager query plans for tuple-independent probabilistic databases
A paramount challenge in probabilistic databases is the scalable computation of
confidences of tuples in query results. This paper introduces an efficient secondary-storage …
confidences of tuples in query results. This paper introduces an efficient secondary-storage …
Incremental view maintenance with triple lock factorization benefits
We introduce F-IVM, a unified incremental view maintenance (IVM) approach for a variety of
tasks, including gradient computation for learning linear regression models over joins, matrix …
tasks, including gradient computation for learning linear regression models over joins, matrix …
FDB: A query engine for factorised relational databases
Factorised databases are relational databases that use compact factorised representations
at the physical layer to reduce data redundancy and boost query performance. This paper …
at the physical layer to reduce data redundancy and boost query performance. This paper …
Approximate confidence computation in probabilistic databases
This paper introduces a deterministic approximation algorithm with error guarantees for
computing the probability of propositional formulas over discrete random variables. The …
computing the probability of propositional formulas over discrete random variables. The …
Factorised representations of query results: size bounds and readability
We introduce a representation system for relational data based on algebraic factorisation
using distributivity of product over union and commutativity of product and union. We give …
using distributivity of product over union and commutativity of product and union. We give …