The architecture presented below in Fig. 1 shows the overall
architecture of Enhanced Trustworthy and High-Quality
Information Retrieval System for Web Search Engines [1] with
Load Shedder incorporated to handle overload conditions.
The user enters the search query and also selects WIQA
Quality Policies in the web search engine user interface. The
Searcher retrieves the corresponding search results from the
database. The resultant URLs are given to the Load Shedder.
The Load Shedder implements the Optimal Load Shedding
Algorithm presented in section 5. The Load Shedder calls the
Trust Evaluator which calculates the trustworthiness value for each of the retrieved URL. All the URLs are filtered based on
the calculated trustworthiness values.
The filtered URLs are then given to the Quality Sub-
System, which stores the URLs in the Named Graphs. The
quality level for each URL is calculated based on three metrics
– Content, Context and Ratings. These metrics are decided
based on the policies initially selected by the user. The
Decision Maker finally calculates the quality level for each
URL by giving a weight factor to the three metrics. Finally the
user receives Trustworthy and High-Quality information
from the web search engine.