SUPPORTING ADVANCED INTERACTIVE SEARCH USING INVERTED INDEX

Abstract

With the proliferation of geographic applications, a large amount of geographic data have been created, such as the geo-textual data and geotagged images. Meanwhile, location-based services are developed to provide people with information of their surrounding environments. Two types of location-based queries are developed for the geo-textual data and the geotagged images respectively. Recent study on spatial keyword search focused on the processing of spatial keyword queries which retrieve objects that match particular keywords within a spatial region. Besides, spatial image search is proposed to find similar images and information about the query image. However, such a huge amount of geographic data also pose a question: how can we find the exact information we want? Interactive methods have been studied widely to find the right information based on human-computer interaction. In this thesis, we focus on the location-based services and study the advanced interactive methods in these services using inverted index.