Mississippi State University
Moorhead II, Robert J.
Durbha, Surya S.
Date of Degree
Graduate Thesis - Open Access
Department of Electrical and Computer Engineering
Location plays an ever increasing role in modern web-based applications. Many of these applications leverage off-the-shelf search engine technology to provide interactive access to large collections of data. Unfortunately, these commodity search engines do not provide special support for location-based indexing and retrieval. Many applications overcome this constraint by applying geographic bounding boxes in conjunction with range queries. We propose an alternative technique based on geographic identifiers and suggest it will yield faster query evaluation and provide higher search precision. Our experiment compared the two approaches by executing thousands of unique queries on a dataset with 1.8 million records. Based on the quantitative results obtained, our technique yielded drastic performance improvements in both query execution time and precision.
Lakey, John Christopher, "Hierarchical Geographical Identifiers As An Indexing Technique For Geographic Information Retrieval" (2008). Theses and Dissertations. 2488.