VLDB
2016
ACM
8 years 7 months ago
2016
ACM
The Big Data problem is characterized by the so called 3V features: Volume - a huge amount of data, Velocity - a high data ingestion rate, and Variety - a mix of structured data, ...
VLDB
2016
ACM
8 years 7 months ago
2016
ACM
For a directed graph G with vertex set V we call a subset C ⊆ V a k-(All-)Path Cover if C contains a node from any path consisting of k nodes. This paper considers the problem o...
VLDB
2016
ACM
8 years 7 months ago
2016
ACM
We propose techniques for processing SPARQL queries over a large RDF graph in a distributed environment. We adopt a “partial evaluation and assembly” framework. Answering a SPA...
VLDB
2016
ACM
8 years 7 months ago
2016
ACM
ICDT
2016
ACM
8 years 7 months ago
2016
ACM
In this paper, we study the communication complexity for the problem of computing a conjunctive query on a large database in a parallel setting with p servers. In contrast to prev...
ICDT
2016
ACM
8 years 7 months ago
2016
ACM
Probabilistic programming languages are used for developing statistical models, and they typically consist of two components: a specification of a stochastic process (the prior),...
ICDT
2016
ACM
8 years 7 months ago
2016
ACM
Filtering a set of items, based on a set of properties that can be verified by humans, is a common application of CrowdSourcing. When the workers are error-prone, each item is pr...
ICDT
2016
ACM
8 years 7 months ago
2016
ACM
We examine document spanners, a formal framework for information extraction that was introduced by Fagin et al. (PODS 2013). A document spanner is a function that maps an input st...
ICDT
2016
ACM
8 years 7 months ago
2016
ACM
Well-designed pattern trees (wdPTs) have been introduced as an extension of conjunctive queries to allow for partial matching – analogously to the OPTIONAL operator of the seman...