However, in this system the queries are already stored and redirected to a new URI that also gets logged, so this is not a problem here.
We model feedback by showing the user how the system interprets the query, thus suggesting repair through query reformulation.
The database system rewrites the query by replacing the original table name with the identified fragment name and removes the selection condition containing a for the relaxation attribute.
The thorough experiments indicate our system decreases the query time for friends' locations and the storage space CenLocShare is more suitable and effective in the context of mOSNs.
The current state of art shows that during the execution of a query in a spatial database management system (SDBMS), the query optimizer creates all possible query evaluation plans.
More generally, it was shown by Imielinski and Lipski that Codd tables are a weak representation system if the query language is restricted to projections, selections (and renaming of columns).
In this work, sensitivity is defined as the percentage of COGs retrieved by a search that belong to the same pathway or functional system as the query.
The sensitivity of these searches, defined as the percentage of recovered COGs that belong to the same pathway or functional system as the query, was measured for each of the 52 pathways and averaged.
Specificity is defined as the ratio of true positives (the absolute number of retrieved COGs that are in the same pathway or functional system as the query) to all COGs retrieved by Psi-square.
There are two types of users in this system, namely: the querier and the publisher.
