Results 51 to 60 of about 3,172,290 (290)
PIR with Compressed Queries and Amortized Query Processing [PDF]
2018 IEEE Symposium on Security and Privacy (SP), 2018 Private information retrieval (PIR) is a key building block in many privacy-preserving systems. Unfortunately, existing constructions remain very expensive. This paper introduces two techniques that make the computational variant of PIR (CPIR) more efficient in practice.
Sebastian Angel +3 more
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Skew in parallel query processing [PDF]
Proceedings of the 33rd ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems, 2014 We study the problem of computing a conjunctive query q in parallel, using p of servers, on a large database. We consider algorithms with one round of communication, and study the complexity of the communication. We are especially interested in the case where the data is skewed, which is a major challenge for scalable parallel query processing.
Paul Beame, Paraschos Koutris, Dan Suciu
openaire +4 more sources
Flexible query processing of SPARQL queries [PDF]
, 2018 SPARQL is the predominant language for querying RDF data, which is the standard model for representing web data and more specifically Linked Open Data (a collection of heterogeneous connected data). Datasets in RDF form can be hard to query by a user if she does not have a full knowledge of the structure of the dataset.
openaire +2 more sources
CoRR, 2013 Motivated by cloud security concerns, there is an increasing interest in database systems that can store and support queries over encrypted data. A common architecture for such systems is to use a trusted component such as a cryptographic co-processor for query processing that is used to securely decrypt data and perform computations in plaintext.
Arvind Arasu, Raghav Kaushik
openaire +3 more sources
10381 Summary and Abstracts Collection – Robust Query Processing [PDF]
, 2011 Dagstuhl seminar 10381 on robust query processing (held 19.09.10 - 24.09.10) brought together a diverse set of researchers and practitioners with a broad range of expertise for the purpose of fostering discussion and collaboration regarding causes ...
Kuno, Harumi Anne +4 more
core +1 more source
Hybrid Ant Algorithm Based Query Processing with Multiagents in Sensor Networks
International Journal of Distributed Sensor Networks, 2013 The wireless sensor networks are usually deployed in various application-specific contexts, which can be treated as distributed databases with big data. The event-involved query responses can be obtained by issuing query requests to this kind of database.
Jianping Yu +3 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Adolescents with high‐risk cancer face complex developmental, psychosocial, and ethical challenges that extend beyond disease‐directed treatment. Although international recommendations exist for communication, psychosocial care, pediatric palliative care, survivorship, and shared decision‐making, these have largely evolved within ...
Johanna M. C. Blom +15 more
wiley +1 more source
Code Generation for Efficient Query Processing in Managed Runtimes [PDF]
, 2014 In this paper we examine opportunities arising from the convergence of two trends in data management: in-memory database systems (IMDBs), which have received renewed attention following the availability of affordable, very large main memory systems; and ...
Nagel, Fabian +5 more
core
Web and Semantic Web Query Languages [PDF]
, 2005 A number of techniques have been developed to facilitate powerful data retrieval on the Web and Semantic Web. Three categories of Web query languages can be distinguished, according to the format of the data they can retrieve: XML, RDF and Topic Maps.
Furche, Tim +7 more
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani +7 more
wiley +1 more source