Results 181 to 190 of about 53,309 (223)

GIR Experimentation [PDF]

open access: yes, 2007
The Geographic Information Retrieval (GIR) community has generally accepted the thesis that both thematic and geographic aspects of documents are useful for GIR. This paper describes an experiment exploring this thesis by separately indexing and searching geographical relevant-terms (place names, geo-spatial relations, geographic concepts and ...
Peters, C, Geoffrey, Andogah
core   +4 more sources

Ranking approaches for GIR

SIGSPATIAL Special, 2011
At the core of any information retrieval system is its method for ranking results in response to a user's query. Geographic Information Retrieval (GIR) systems have an added complexity for this task since the information to be included in the ranking process goes beyond text and word frequency information to encompass geographic proximity, containment ...
openaire   +1 more source

Challenges for indexing in GIR

SIGSPATIAL Special, 2011
Geographic information retrieval (GIR) has been evaluated in campaigns such as GeoCLEF, GikiP, and GikiCLEF [8, 12, 11]. Surprisingly, most results from these evaluations showed that adding more geographic knowledge typically had little or no effect on performance of GIR systems or that it even decreases performance compared to traditional (textual ...
openaire   +1 more source

Forostar: A System for GIR

2007
We detail our methods for generating and applying co-occurrence models for the purpose of placename disambiguation. We explain in detail our use of co-occurrence models for placename disambiguation using a model generated from Wikipedia. The presented system is split into two stages: a batch text & geographic indexer and a real time query engine.
Simon E. Overell   +2 more
openaire   +1 more source

Evaluating GIR

SIGSPATIAL Special, 2011
Geographic terms appear very often in user queries. Many geographic references are present in query log-files. Examples found in different log files [6] include question answering style queries such as "What time is it in West Samoa ?", terms within book titles like "Death in Venice ...
openaire   +1 more source

GIR with Geographic Query Expansion

2007
For our participation in the second edition of GeoCLEF, we have researched the incorporation of geographic knowledge into Geographic Information Retrieval (GIR). Our system is made up of an IR module (IR-n) and a Geographic Knowledge module (Geonames).
Antonio Toral   +5 more
openaire   +1 more source

Al"tar-gir"je Norga gir"kui :, Altar-Girje

"Skrevet og benyttet af Ole Bornemann Bull, sogneprest til Tanen og Senja 1862-73" - Tilføyelse på første blads innside.
openaire   +1 more source

Geographic Information Retrieval (GIR)

Computers, Environment and Urban Systems, 2006
Purves, Ross S, Jones, Christopher B
openaire   +2 more sources

Home - About - Disclaimer - Privacy