PPT-Optimal Query Processing Meets Information Theory

Dan Suciu University of Washington Hung Ngo Mahmoud AboKhamis PODS2016 PODS2017 RelationalAI Inc Basic Question What is the optimal runtime to compute a query Q on a database . Group 4: . Nipun . Garg, Surabhi . Mithal. http://www-users.cs.umn.edu/~smithal/. Chapter Organization. 2. OLD Organization. 5.1 . Evaluation of Spatial Operations . 5.2 . Query Optimization . 5.3 . Outline:. The nature of the information-processing approach. Attention. Memory. Expertise. Metacognition. 1. The nature of the information-processing approach. Information, memory, and thinking. Cognitive resources: capacity and speed of processing information. Yuichi Iijima and . Yoshiharu Ishikawa. Nagoya University, Japan. Outline. Background and Problem Formulation. Related Work. Query Processing Strategies. Experimental Results. Conclusions. 1. 2. Imprecise. Michael . Armbrust. , Kristal Curtis, Tim . Kraska. Armando Fox, Michael J. Franklin, David A. Patterson. AMP Lab, EECS, UC Berkeley. Introduction. Large-scale websites are increasingly moving from relational databases to distributed key-value stores.. Query Formulation. Ling573. NLP Systems and Applications. April 14, 2011. Roadmap. Motivation:. Retrieval gaps. Query F. ormulation:. Question Series. Query reformulation:. AskMSR. patterns. MULDER parse-based formulation. Dr. Bjarne Berg . 3. What We’ll Cover …. . Introduction. Performance Issues & Tips. MultiProviders and Partitioning. Aggregates. Query Design & Caching. Hardware & Servers. Designing for Performance. a bride and groom. John 2:1-11. Jesus meets … . a bride and groom. John 2:1-11. Jesus is a guest – he believes in marriage. Jesus meets … . a bride and groom. John 2:1-11. Jesus is great – he’s bigger than all our problems . in a Data Stream Management . System. Introduction. Two . fundamental . differences between DSMS and DBMS. In . addition to managing traditional stored data . such as . relations, a DSMS must handle multiple . of Massive Trajectory Data based on MapReduce. Qiang. Ma, Bin Yang (. Fudan. University). Weining. . Qian. , . Aoying. Zhou (ECNU). Presented By: . Xin. Cao (Aalborg University). Outline. Introduction . A query is stated using SQL or other languages, ideally natural languages. After query parsing, each query is essentially treated as a . relational algebra expression. Query optimizer . Enumerates . the possible plans to evaluate expression,. Query optimization. :. The process of choosing a suitable execution strategy for processing a query.. Two internal representations of a query:. Query Tree. Query Graph. Introduction to Query Processing (2). Keith Dalbey, Ph.D.. Sandia National Labs, Dept 1441, Optimization and Uncertainty Quantification. Michael Levy, Ph.D.. Sandia National Labs, Dept 1442, Numerical Analysis and Applications. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy’s National Nuclear Security Administration under Contract DE-AC04-94AL85000.. Artful SIDE OF BODRUMCurrently sought after for its vibrant nightlife and ravishing beaches Bodrum formerly called Halicarnassus has always been remarkable In fact this small coastal town used to harb Artful SIDE OF BODRUMCurrently sought after for its vibrant nightlife and ravishing beaches Bodrum formerly called Halicarnassus has always been remarkable In fact this small coastal town used to harb