R-tree: splits space with hierarchically nested, and possibly overlapping, boxes ... Moving objects probe the index to find the queries that they influence. YPK-CNN ...
Efficient Approximate Search on String Collections Part I Marios Hadjieleftheriou Chen Li * * * * Variable-length grams (VGRAM) [LWY07,YWL08] * Next # of common ...
Fast Indexes and Algorithms For Set Similarity Selection Queries M. Hadjieleftheriou Chandel N. Koudas D. Srivastava Strings as sets s1 = Main St. Maine ...
Query Assurance on Data Streams. Ke Yi (AT&T Labs, now at HKUST) Feifei Li (Boston U, now at Florida State) Marios Hadjieleftheriou (AT&T Labs) Divesh Srivastava (AT ...
On Discovering Moving Clusters in Spatio-temporal Data Panos Kalnis National University of Singapore Nikos Mamoulis University of Hong Kong Spiridon Bakiras
Efficient Approximate Search on String ... mat e. s. 2. s. del e. sa. 2. s. sub e/a. sa. 3. sa. del e. Active nodes for Q = e. Active nodes for Q = e ...
* Workshop on Research Directions in Situational-aware Self-managed Proactive Computing in Wireless Ad-hoc Networks, with MDM 10, Kansas City, Missouri ...
Title: Querying Sensor Data in Smartphone Networks Subject: University of Cyprus Author: Demetris Zeinalipour Last modified by: ntenisOT ntenisOT Created Date
Department of Computer Science and Engineering, University of Minnesota ... How many cars are in ... What are the fast food restaurants within 3 miles ...
A car turning left/right. at a static position with a moving floor ... Utilizes either GPS technologies or signal strength of the mobile user to derive this info. ...
Title: Introduction to Management of Spatial Streams Author: Kostas Patroumpas Last modified by: timos sellis Created Date: 8/20/2004 7:37:17 AM Document presentation ...
Lift. Global e-approximate sketch after lift. Merged e/2-approximate sketch ... sketch on (1- e/2)N data items, then lifting the sketch by eN/2 results in an e ...
Best case we are left with at most 5 matching elements beyond the elements in the sketch ... list per q-gram in D and compute the minhash sketch of each list: ...
What is a Sketch. An approximate representation of the string ... Clustering - Sepia. Partition strings using clustering: Enables pruning of whole clusters ...
Instead of traditional 'cell phone tower triangulation' method, use AGPS (Assisted GPS) ... E911 (enhanced 911) service: locate any cell phone that dialed 911. ...
Non-Metric (e.g., LCSS, DTW): Any of the above properties is not obeyed. 14. Similarity Search ... flexible to out-of-phase matching (i.e., temporal distortions) ...
Data Stream Algorithms Intro, Sampling, Entropy Graham Cormode graham@research.att.com Outline Introduction to Data Streams Motivating examples and applications Data ...
count distinct in one shot model needs randomness. Else must send complete data. Querying ... One-Shot Distributed-Stream Querying. Tree Based Aggregation ...
Algorithms:NRA, TA, iNRA, iTA, SF, Hybrid, Sort-by-id, Improved SQL based ... Used the properties to design efficient algorithms. SF works best overall in practice ...
Data Systems Group, UCF. Fall 2005. Outline. Introduction to Data Management in Mobile Computing. ... GPS: Global Positioning System. Accuracy: up to 3 meters or more. ...
Selectivity estimation. Conclusion and future directions. 2. Web Search ... Selectivity estimation. Conclusion and future directions. 35 # of common grams = 1 ...
So FUR-tree propose a new concept of updating R-tree, which is bottom ... FUR-tree stores the candidates whose circ-regions' radii are larger than a threshold ...
Join the largest hash partition with the corresponding disk partition of the other relation. ... design of a stream-join algorithm includes deciding. the ...