'New bucket' diaporamas de présentation

Mining Data Streams

676 views • 27 slides

Maintaining Time-Decaying Stream Aggregates

Maintaining Time-Decaying Stream Aggregates. Edith Cohen Martin Strauss AT&T Labs-research. The Problem. A data stream is a sequence of data items observed over time. Presence of multiple massive data streams.

347 views • 23 slides

Quick Review of Apr 10 material

Quick Review of Apr 10 material. B+-Tree File Organization similar to B+-tree index leaf nodes store records, not pointers to records stored in an original file leaf and interior nodes are different B-trees search key values appear only once

316 views • 22 slides

Content Overlays

Content Overlays. (Nick Feamster) February 25, 2008. Universe U of all possible objects, set B of buckets. object : set of web objects with same serial number bucket : web server. Hash function h: U ? B. Assigns objects to buckets. Hashing.

334 views • 21 slides