In this paper we present an architectural overview of a search engine based on semantic web technologies to improve the search for learning resources. The use of search engines has contributed to the success of the Web. At present, many people use search engines to retrieve relevant information about a topic and students also use search engines to find learning resources. Keyword-based searches...

A plethora of enhancements are available to be used together with the αβ search algorithm. There are so many, that their selection and implementation is a non-trivial task, even for the expert. Every domain has its specifics which affect the search tree Even seemingly minute changes to an evaluation function can have an impact on the characteristics of a search tree. In turn, different tree cha...

In this paper we study several dimensions of web dynamics in the context of large-scale Internet search engines. Both growth and update dynamics clearly represent big challenges for search engines. We show how the problems arise in all components of a reference search engine model. Furthermore, we use the FAST Search Engine architecture as a case study for showing some possible solutions for we...

In large distributed hypertext system like the World-Wide Web; users find resources by following hypertext links. As the size of the system increases the users must traverse increasingly more links to find what they are looking for, until precise navigation becomes impractical. The WebCrawler is a tool that solves these problems by indexing and automatically navigating the Web. This paper descr...