There are several approaches to extract geo-knowledge from documents and textual fields in databases. Most of them focus on detecting geographic evidence, from which the associated geographic location can be determined. This paper is based on a different premise – geo-knowledge can be extracted even from non-geographic evidence, taking advantage of the linked data paradigm. The paper gives an o...

Advancements in positioning techniques and mobile communications have enabled location-based services with a broad range of location-aware multimedia applications. Accordingly, various social multimedia data, relevant to different aspects of users’ daily life, is aggregated over time on the Internet. Such locationaware multimedia data contains rich context of users and has two implications: ind...

We propose Adaptive Geo-Source Multicast Routing (AGSMR) for WSNs. It addresses the scalability issue of previous location based stateless multicast protocols in WSNs. AGSMR is a novel stateless multicast protocol that optimizes the location-based and source-based multicast approaches in various ways. First, it saves the cost of a tree building by using receiver’s geographic location informatio...

Nowadays, geographic information related to Twitter is crucially important for fine-grained applications. However, the amount of geographic information available on Twitter is low, which makes the pursuit of many applications challenging. Under such circumstances, estimating the location of a tweet is an important goal of the study. Unlike most previous studies that estimate the pre-defined dis...

The Geographic Location/Privacy (geopriv) working group defines the concept of a ’using protocol’, a protocol that carries Geopriv location objects. Geopriv also defines various scenarios for the distribution of location objects that require the concept of subscriptions and asynchronous notifications. This document shows the big picture with the alignment of the Geopriv and the presence archite...

Metonymic location names refer to other, related entities and possess a meaning different from the literal, geographic sense. Metonymic names are to be treated differently to improve performance of geographic information retrieval (GIR). This paper presents a method for disambiguating location names in textual information to distinguish literal and metonymic senses, based on shallow features. T...

Web image search today is mostly keyword-based and explores the content surrounding the image. Searching for images related to a certain location quickly shows that Web images typically do not reveal their explicit relation to an actual geographic position. The geographic semantics of Web images are either not available at all or hidden somewhere within the the Web pages’ content. Our spatial s...

With the explosive growth of the available information on the internet, navigating the web successfully in order to obtain information has become an important issue. This essentially involves using techniques such as searching for the information using keyword and subject based searches. To the best of our knowledge, most tools which achieve this goal are not designed to nd the geographic locat...

This study recommends a GIS-based (Geographic Information Systems) and multi-criteria evaluation for site selection of gas power plant in Natanz City of Iran. The multi-criteria decision framework integrates legal requirements and physical constraints related to environmental and economic concerns. It also builds a hierarchy model for gas power plant suitability. The methodologies used for site...