SIGMOD 2017 notes

The summary of some presentations at SIGMOD 2017 Keynote: Democratizing Advanced Analytics Beyond Just Plumbing Advanced analytics = data management + ML (Machine Learning). Machine Learning puts more focus on accuracy (or other evaluation metrics) and runtime efficiency while advanced analytics puts more focus on scalability, usability, manageability, developability. There are …

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Yannis Papakonstantinou: The SQL++ Query Language: Support for native JSON, while backwards-compatible with SQL

Yannis Papakonstantinou will give a talk this Monday at 11 am, Turing Building, Flowers room. Title: The SQL++ Query Language: Support for native JSON, while backwards-compatible with SQL Speaker: Yannis Papakonstantinou, Prof. Computer Science and Engineering, UCSD www.db.ucsd.edu/people/yannis.htm Abstract: SQL-on-Hadoop, NewSQL and NoSQL databases provide semi-structured data models (typically JSON-based). …

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Stanislav Kikot and Roman Kontchakov: “Ontology-based data access via query rewriting: theory and practice”

Stanislav Kikot and Roman Kontchakov from Birbeck College, London, will give a talk on Friday 25, 10 am, at Thomas Flowers room, Turing building. Abstract: The talk consists of two parts. In the first part, we present our recent theoretical results on the computational complexity of answering OWL 2 QL ontology-mediated queries (OMQs) …

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Antoine Amarilli: Query Answering with Guarded Logics and Expressive Constraints

Antoine Amarilli (Télécom Paris) will give a talk on October 20th, 2 pm, at Salle Thomas Flowers, Turing Building. Abstract The query answering problem, also called entailment or certain answer problem, is a fundamental reasoning problem in knowledge representation and databases. It asks whether a conjunctive query is always certain given incomplete data …

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