A substantial amount of the 'critical mass' of digital data available to scholarship contains place-names, and it is now recognised that spatial and temporal data points, including place-names, are an vital part of the e-research... more
Geography-related terms are often used in Web search queries • Many user activities on the Web are directly related to the user's location • It is important to conceive applications that take into consideration this intention • Advances... more
There is a need for GIR systems to interpret the vague aspects of spatial language. Here we describe an initial approach towards evaluating crisp realisations of a field-based model of the use of the spatial preposition "near", based on... more
With the aim to improve the quality of gazetteers for geographic information retrieval systems, we present a method to detect place names employed by people submitting information to web resources. We investigate how often people refer to... more
In order to facilitate place-affordance queries on the Web, this work proposes the employment of an ontology of place and service types. While other works defined place-affordance by associating a place with its physical objects, the... more
This paper describes an approximation based on geographic information retrieval with the purpose to give some solutions to the problem of searching pharmacies on duty in the Spanish territory. It is a novel investigation, which requires... more
In order to facilitate place-affordance queries on the Web, this work proposes the employment of an ontology of place and service types. While other works defined place-affordance by associating a place with its physical objects, the... more
A geo-ontology has a key role to play in the development of a spatially aware search engine, with regard to providing support for query disambiguation, query term expansion, relevance ranking and web resource annotation. This paper... more
GeoCLEF is an evaluation initiative for testing queries with a geographic specification in large set of text documents. GeoCLEF ran a regular track for the third time within the Cross Language Evaluation Forum (CLEF) 2008. The purpose of... more
Most geographic information retrieval systems depend on the detection and disambiguation of place names in documents, assuming that the documents with a specific geographic scope contain explicit place names in the text that are strongly... more
DIGMAP is a project focused on historical digitized maps that will develop a set of Internet services based on reusable open-source software solutions. The main service will provide discovery and access to resources related to historical... more
The GeoDigRef and Embedding GeoCrosswalk projects were both concerned with georeferencing digitised collections. In the case of GeoDigRef, the collections were Histpop, BOPCRIS and Archival Sound Recordings, while for Embedding... more
AOA: The research paper reports on the generation of geospatial footprints from geoparsed text associated with geocrowdsourced platial data collected and stored in the George Mason University Geocrowdsourcing Testbed (GMU-GcT). The... more
The research paper reports on the generation of geospatial footprints from geoparsed text associated with geocrowdsourced platial data collected and stored in the George Mason University Geocrowdsourcing Testbed (GMU-GcT). The GMU-GcT... more
Geotagging a Diachronic Corpus of Alpine Texts: Comparing Distinct Approaches to Toponym Recognition
Geotagging historic and cultural texts provides valuable access to heritage data, enabling location-based searching and new geographically related discoveries. In this paper, we describe two distinct approaches to geotagging a variety of... more
This paper addresses the problem of real time 3D modeling from images with multiple cameras. Environments where multiple cameras and PCs are present are becoming usual, mainly due to new camera technologies and high computing power of... more
This paper addresses the problem of real time 3D modeling from images with multiple cameras. Environments where multiple cameras and PCs are present are becoming usual, mainly due to new camera technologies and high computing power of... more
This paper introduces the POESIA internet filtering system, which is open-source, and which combines standard filtering methods, such as positive/negative URL lists, with more advanced techniques, such as image processing and NLP-enhanced... more
In this paper we discuss evaluation of information retrieval, Web search and question answering systems, paving the way for the organization of an evaluation contest on IR for Portuguese. Inspired by current international setups, we... more
Topographic Eminences Topographic eminences form a fundamental superordinate category of landforms, including all convex shaped topographic landforms that rise above their immediate surroundings. People are known to recognize a wide... more
Vernacular place names are names that are commonly in use to refer to geographical places. For purposes of effective information retrieval, the spatial extent associated with these names should be able to reflect people's perception of... more
Semantic Web resources such as DBpedia provide a rich source of structured knowledge about geographical features such as towns, rivers and historical buildings. Retrieval from these resources of all content that is relevant to a... more
Geographic Information Retrieval is fast emerging as an interdisciplinary hot-topic, both in an academic and commercial sense. Retrieving data based not only on conceptual key words, but some notion of the locational relevance of the... more
A geo-ontology has a key role to play in the development of a spatially aware search engine, with regard to providing support for query disambiguation, query term expansion, relevance ranking and web resource annotation. This paper... more
A simple definition is that gazetteers are dictionaries of placenames. The digital gazetteer as a component of georeferenced information systems, however, is more formally modeled. A gazetteer is defined as a collection of gazetteer... more
Place names are often used to describe and to enquire about geographical information. It is common for users to employ vernacular names that have vague spatial extent and which do not correspond to the official and administrative place... more
This paper describes several steps in the derivation of boundaries of imprecise regions using the Web as the information source. We discuss how to use the Web to obtain locations that are part of and locations that are not part of the... more
This paper investigates recent research on active learning for (geo) text and image classification, with an emphasis on methods that combine visual analytics and/or deep learning. Deep learning has attracted substantial attention across... more
This article focuses on integrating computational and visual methods in a system that supports analysts to identify, extract, map, and relate linguistic accounts of movement. We address two objectives: (1) build the conceptual,... more
This dissertation presents work on optimization of information retrieval methods used on web search. The work had two purposes: i) development of the research on ecient,methods for document indexing and relevance ranking, based on a local... more
The process of protecting sensitive data is continually growing and becoming increasingly important, especially as a result of the directives and laws imposed by the European Union. The effort to create automatic systems is continuous,... more
The growing availability of online K-12 curriculum is increasing the need for meaningful alignment of this curriculum with statespecific standards. Promising automated and semi-automated alignment tools have recently become available.... more
In this paper, we use a minimal generic base of association rules between terms, in order to enrich automatically an existing ontology. Such associations of terms will enable the domain expert to enhance the existing ontology in case... more
A substantial amount of the 'critical mass' of digital data available to scholarship contains place-names, and it is now recognised that spatial and temporal data points, including place-names, are an vital part of the e-research... more
How can researchers use available gazetteer data to determine and assess the locations of former Nazi concentration camps and their subcamps? Often these places are known only by the names of the towns, villages, or areas of cities where... more
The emergence of digital social data produced by an increasingly large number of people, in parallel with technological advances in the field of information retrieval, has led to a discovery that such fine-grained data on urban spaces... more
Traditional map production is a top-down process driven by national mapping agencies. We argue that VGI have the potential to allow us to create place-based maps, and in particular that VGI in the form of Flickr data can be used to drive... more
This paper evaluates scalable distributed crawling by means of the geographical partition of the Web. The approach is based on the existence of multiple distributed crawlers each one responsible for the pages belonging to one or more... more
In the Thai language, named entity can be used with or without a prefix or an indication of word. This may cause confusion between named entity and other types of noun. However, a named entity is likely to be used in adjacent to verbs or... more
This paper introduces GKB, a repository based on a domain independent meta-model for integrating geographic knowledge collected from multiple sources. We present the architecture, the repository design and the data cleaning and knowledge... more
Searching for information is a ubiquitous activity, performed in a variety of contexts and supported by rapidly evolving technologies. As a process, information search often has a spatial aspect: spatial metaphors help users refer to... more