'Query cost' presentation slideshows

Presented by Snehal Thakkar

The R*-tree: An Efficient and Robust Access Method for Points and Rectangles Norbert Beckmann, Hans-Peter begel Ralf Schneider, Bernhard Seeger. Presented by Snehal Thakkar. Contents. Terminology Abstract Introduction R-tree variants R*-tree Experiments Conclusions. Terminology.

1.37k views • 91 slides

Query Processing

Query Processing. Overview Measures of Query Cost Selection Operation Sorting Join Operation Other Operations Evaluation of Expressions. Basic Steps in Query Processing. 1. Parsing and translation 2. Optimization* 3. Evaluation. Parsing, Translation and Evaluation.

700 views • 69 slides

Local Cost Estimation for Global Query Optimization in a Multidatabase System

Local Cost Estimation for Global Query Optimization in a Multidatabase System. Dr. Qiang Zhu The University of Michigan Dearborn, MI, USA. Outline. Introduction Challenges for QO in MDBS Query Sampling Method Qualitative Approach Fractional Analysis and Probabilistic Approach Conclusions.

528 views • 44 slides

Local Cost Estimation for Global Query Optimization in a Multidatabase System

Local Cost Estimation for Global Query Optimization in a Multidatabase System. Dr. Qiang Zhu The University of Michigan Dearborn, MI, USA. Outline. Introduction Challenges for QO in MDBS Query Sampling Method Qualitative Approach Fractional Analysis and Probabilistic Approach Conclusions.

549 views • 44 slides

Local Cost Estimation for Global Query Optimization in a Multidatabase System

Local Cost Estimation for Global Query Optimization in a Multidatabase System. Dr. Qiang Zhu The University of Michigan - Dearborn. Outline. Introduction Challenges for QO in MDBS Query Sampling Method Qualitative Approach Fractional Analysis and Probabilistic Approach Conclusions.

449 views • 44 slides

Differential Forms for Target Tracking and Aggregate Queries in Distributed Networks

Differential Forms for Target Tracking and Aggregate Queries in Distributed Networks. Rik Sarkar Jie Gao Stony Brook University. Target Tracking with Sensor Networks. Target Queries. Range queries : # targets within any geographic range R . Tracking queries :

551 views • 40 slides

Differential Forms for Target Tracking and Aggregate Queries in Distributed Networks

Differential Forms for Target Tracking and Aggregate Queries in Distributed Networks. Rik Sarkar Jie Gao Stony Brook University. Target Tracking with Sensor Networks. Target Queries. Range queries : # targets within any geographic range R . Tracking queries :

511 views • 40 slides

Efficient Search Engine Measurements

747 views • 37 slides

Efficient Discrete-Time Simulations of Continuous-Time Quantum Query Algorithms

Efficient Discrete-Time Simulations of Continuous-Time Quantum Query Algorithms. Rolando D. Somma Joint work with R. Cleve, D. Gottesman, M. Mosca, D. Yonge-Mallo. QIP 2009 January 14, 2009 Santa Fe, NM. For quantum algorithms, we consider a reversible version of BB:.

369 views • 25 slides

Efficient Discrete-Time Simulations of Continuous-Time Quantum Query Algorithms

Efficient Discrete-Time Simulations of Continuous-Time Quantum Query Algorithms. Rolando D. Somma Joint work with R. Cleve, D. Gottesman, M. Mosca, D. Yonge-Mallo. QIP 2009 January 14, 2009 Santa Fe, NM. For quantum algorithms, we consider a reversible version of BB:.

255 views • 25 slides

Efficient Content Location in MANETs

Efficient Content Location in MANETs. Jivodar Tchakarov Nitin Vaidya Presented by : Jungmin So University of Illinois at Urbana-Champaign. Introduction. Centralized approaches Central directory server Too much dependency on particular nodes Decentralized approaches

251 views • 17 slides