Many Semantic Web applications provide access to their resources through text-based search queries, using explicit semantics to improve the search results. This paper provides an analysis of the current state of the art in semantic search, based on 35 existing systems. We identify different types of semantic search features that are used during query construction, the core search process, the presentation of the search results and user feedback on query and results. For each of these, we consider the functionality that the system provides and how this is made available through the user interface.

Semantic search, user interaction, analysis, evaluation"
Information Search and Retrieval (acm H.3.3), User Interfaces (acm H.5.2), Hypertext/Hypermedia (acm H.5.4)
Information (theme 2)
Information Systems [INS]
Human-centered Data Analysis

Hildebrand, M, van Ossenbruggen, J.R, & Hardman, L. (2007). An analysis of search-based user interaction on the Semantic Web. Information Systems [INS]. CWI.