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» On Ultrametric Algorithmic Information
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WWW
2008
ACM
16 years 7 months ago
Recrawl scheduling based on information longevity
It is crucial for a web crawler to distinguish between ephemeral and persistent content. Ephemeral content (e.g., quote of the day) is usually not worth crawling, because by the t...
Christopher Olston, Sandeep Pandey
WWW
2008
ACM
16 years 7 months ago
Application of bitmap index to information retrieval
To solve this problem, we devised the HS-bitmap index, which is hierarchically comprised of compressed data of summary bits. A summary bit in an upper matrix is obtained by logical...
Kengo Fujioka, Yukio Uematsu, Makoto Onizuka
ICDE
2010
IEEE
224views Database» more  ICDE 2010»
16 years 6 months ago
Probabilistic Declarative Information Extraction
Abstract-Unstructured text represents a large fraction of the world's data. It often contain snippets of structured information within them (e.g., people's names and zip ...
Daisy Zhe Wang, Eirinaios Michelakis, Joseph M. He...
SOSP
2001
ACM
16 years 3 months ago
Information and Control in Gray-Box Systems
In modern systems, developers are often unable to modify the underlying operating system. To build services in such an environment, we advocate the use of gray-box techniques. Whe...
Andrea C. Arpaci-Dusseau, Remzi H. Arpaci-Dusseau
TEI
2010
ACM
163views Hardware» more  TEI 2010»
16 years 1 months ago
A 6DoF fiducial tracking method based on topological region adjacency and angle information for tangible interaction
In this paper, we describe a new method for camera-based fiducial tracking. Our new method is based on the combination of topological region adjacency and angle information, where...
Hiroki Nishino