Sciweavers

1059 search results - page 193 / 212
» The PISAB Question Answering System
Sort
View
SIGIR
2012
ACM
11 years 10 months ago
To index or not to index: time-space trade-offs in search engines with positional ranking functions
Positional ranking functions, widely used in web search engines, improve result quality by exploiting the positions of the query terms within documents. However, it is well known ...
Diego Arroyuelo, Senén González, Mau...
CIKM
1997
Springer
13 years 11 months ago
Analysis and Design of Server Informative WWW-Sites
The access patterns of the users of a web-site are traditionally analyzed in order to facilitate the user access to the site's information. In this study, however, a systemat...
Amir M. Zarkesh, Jafar Adibi, Cyrus Shahabi, Reza ...
FLOPS
2006
Springer
13 years 11 months ago
Contracts as Pairs of Projections
Abstract. Assertion-based contracts provide a powerful mechanism for stating invariants at module boundaries and for enforcing them uniformly. In 2002, Findler and Felleisen showed...
Robert Bruce Findler, Matthias Blume
ICDE
1998
IEEE
139views Database» more  ICDE 1998»
13 years 11 months ago
Cost and Imprecision in Modeling the Position of Moving Objects
Consider a database that represents the location of moving objects, such as taxi-cabs (typical query: retrieve the cabs that are currently within 1 mile of 33 Michigan Ave., Chica...
Ouri Wolfson, Sam Chamberlain, Son Dao, Liqin Jian...
CCS
2007
ACM
13 years 11 months ago
Efficient policy analysis for administrative role based access control
Administrative RBAC (ARBAC) policies specify how Role-Based Access Control (RBAC) policies may be changed by each administrator. It is often difficult to fully understand the effe...
Scott D. Stoller, Ping Yang, C. R. Ramakrishnan, M...