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» Discretization: An Enabling Technique
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WWW
2008
ACM
16 years 7 months ago
SPARQL basic graph pattern optimization using selectivity estimation
In this paper, we formalize the problem of Basic Graph Pattern (BGP) optimization for SPARQL queries and main memory graph implementations of RDF data. We define and analyze the c...
Markus Stocker, Andy Seaborne, Abraham Bernstein, ...
WWW
2007
ACM
16 years 7 months ago
Simple authentication for the web
Automated email-based password reestablishment (EBPR) is an efficient, cost-effective means to deal with forgotten passwords. In this technique, email providers authenticate users ...
Timothy W. van der Horst, Kent E. Seamons
WWW
2004
ACM
16 years 7 months ago
Combining individual tutoring with automatic course sequencing in WBT systems
Usually, the success of systems using automatic course sequencing depends strongly on careful authoring and foreseeing of all curriculum alternatives before any learning session e...
Denis Helic, Hermann A. Maurer, Nick Scerbakov
WWW
2004
ACM
16 years 7 months ago
SEMPL: a semantic portal
Semantic Web technology is intended for the retrieval, collection, and analysis of meaningful data with significant automation afforded by machine understandability of data [1]. A...
Matthew Perry, E. Stiles
WWW
2001
ACM
16 years 7 months ago
Map adaptation for users of mobile systems
Display characteristics, network Quality of Service, and the user's current task all exhibit a wide range of variation when users interact with mobile and ubiquitous devices....
Dan Chalmers, Morris Sloman, Naranker Dulay