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Workshop on Geographic Information Retrieval最新文献

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Geographical queries beyond conventional boundaries: regional search and exploration 超越传统边界的地理查询:区域搜索和探索
Workshop on Geographic Information Retrieval Pub Date : 2013-11-05 DOI: 10.1145/2533888.2533940
C. Kumar, Wilko Heuten, Susanne CJ Boll
{"title":"Geographical queries beyond conventional boundaries: regional search and exploration","authors":"C. Kumar, Wilko Heuten, Susanne CJ Boll","doi":"10.1145/2533888.2533940","DOIUrl":"https://doi.org/10.1145/2533888.2533940","url":null,"abstract":"Geographic information retrieval (GIR) has commonly been exploited for the search of specific points of interest using conventional text-based query methods. Such input methods restrict end users' search to predefined spatial boundaries. However in some scenarios, users' spatial information need do not only rely in specific places, but rather in the search and exploration of certain region of interest. A user might be interested in exploring a region he/she is already living in, or to search for other similar regions. In this paper we argue the need of more sophisticated query interfaces for GIR that abstracts from the places and support the search and exploration of relevant regions. To cater such user requirements we present spatial query definition on map interface that could provide interactive analysis, and relevance ranking of interesting regions.","PeriodicalId":167948,"journal":{"name":"Workshop on Geographic Information Retrieval","volume":"59 45","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120888885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Where the streets have no name: experiences in GIR for a developing country 没有名字的街道:发展中国家在GIR中的经验
Workshop on Geographic Information Retrieval Pub Date : 2013-11-05 DOI: 10.1145/2533888.2533937
Dirk Ahlers
{"title":"Where the streets have no name: experiences in GIR for a developing country","authors":"Dirk Ahlers","doi":"10.1145/2533888.2533937","DOIUrl":"https://doi.org/10.1145/2533888.2533937","url":null,"abstract":"This paper gives a short overview of a project on Geographic Information Retrieval in developing countries in the form of an experience report based in Honduras. It provides some insights into encountered challenges of resource discovery, and georeferencing due to low Web coverage and informal location references as well as tested or proposed solutions to address them, including search via alternative means such as social networks.","PeriodicalId":167948,"journal":{"name":"Workshop on Geographic Information Retrieval","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115860259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Cross-lingual geo-parsing for non-structured data 非结构化数据的跨语言地理解析
Workshop on Geographic Information Retrieval Pub Date : 2013-11-05 DOI: 10.1145/2533888.2533943
J. Gelernter, Wei Zhang
{"title":"Cross-lingual geo-parsing for non-structured data","authors":"J. Gelernter, Wei Zhang","doi":"10.1145/2533888.2533943","DOIUrl":"https://doi.org/10.1145/2533888.2533943","url":null,"abstract":"A geo-parser automatically identifies location words in a text. We have generated a geo-parser specifically to find locations in unstructured Spanish text. Our novel geo-parser architecture combines the results of four parsers: a lexico-semantic Named Location Parser, a rules-based building parser, a rules-based street parser, and a trained Named Entity Parser. Each parser has different strengths: the Named Location Parser is strong in recall, and the Named Entity Parser is strong in precision, and building and street parser finds buildings and streets that the others are not designed to do. To test our Spanish geo-parser performance, we compared the output of Spanish text through our Spanish geo-parser, with that same Spanish text translated into English and run through our English geo-parser. The results were that the Spanish geo-parser identified toponyms with an F1 of .796, and the English geo-parser identified toponyms with an F1 of .861 (and this is despite errors introduced by translation from Spanish to English), compared to an F1 of .114 from a commercial off-the-shelf Spanish geo-parser. Results suggest (1) geo-parsers should be built specifically for unstructured text, as have our Spanish and English geo-parsers, and (2) location entities in Spanish that have been machine translated to English are robust to geo-parsing in English.","PeriodicalId":167948,"journal":{"name":"Workshop on Geographic Information Retrieval","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131650069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 33
Criteria of query-independent page significance in geospatial web search 地理空间网页搜索中与查询无关的页面重要性标准
Workshop on Geographic Information Retrieval Pub Date : 2013-11-05 DOI: 10.1145/2533888.2533932
C. Kumar, Susanne CJ Boll
{"title":"Criteria of query-independent page significance in geospatial web search","authors":"C. Kumar, Susanne CJ Boll","doi":"10.1145/2533888.2533932","DOIUrl":"https://doi.org/10.1145/2533888.2533932","url":null,"abstract":"The ranking problem in geospatial Web search has traditionally been focused towards query dependent relevance, i.e., the combination of textual and geographic similarity of pages with respect to query text and footprint. The query independent relevance which is also known as the popularity or significance of a page is a valuable aspect of generic Web search ranking. But the research progression or the formalization of query independent significance for geospatial Web search has been limited to the basic adaption of general popularity of pages. In this paper, we discuss how several location sensitive properties could alter the significance of geospatial Web pages. We particularly argue the significance of pages with respect to categorical, regional, and granular criterions. We analyze these criterions over a huge geospatial Web graph of different German cities, and perform some small-scale evaluations of our approach. We derive some valuable heuristics on the link structure of geospatial Web that can be used in the ranking formulation, or to cater certain contextual information needs from end-user of a geospatial Web search system.","PeriodicalId":167948,"journal":{"name":"Workshop on Geographic Information Retrieval","volume":"70 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114024719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Extracting spatiotemporal and semantic events from documents 从文档中提取时空和语义事件
Workshop on Geographic Information Retrieval Pub Date : 2013-11-05 DOI: 10.1145/2533888.2533941
Wei Wang, K. Stewart
{"title":"Extracting spatiotemporal and semantic events from documents","authors":"Wei Wang, K. Stewart","doi":"10.1145/2533888.2533941","DOIUrl":"https://doi.org/10.1145/2533888.2533941","url":null,"abstract":"The methods demonstrated through this work support automated annotation of spatiotemporal semantic event information associated with natural hazards, such as power outages, cancellations, and emergency response associated with hurricanes, floods, or drought as reported in web news reports.","PeriodicalId":167948,"journal":{"name":"Workshop on Geographic Information Retrieval","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117096768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Semantic extraction of geographic data from web tables for big data integration 面向大数据集成的web表地理数据语义提取
Workshop on Geographic Information Retrieval Pub Date : 2013-11-05 DOI: 10.1145/2533888.2533939
I. Cruz, Venkat R. Ganesh, Seyed Iman Mirrezaei
{"title":"Semantic extraction of geographic data from web tables for big data integration","authors":"I. Cruz, Venkat R. Ganesh, Seyed Iman Mirrezaei","doi":"10.1145/2533888.2533939","DOIUrl":"https://doi.org/10.1145/2533888.2533939","url":null,"abstract":"There are millions of web tables with geographic data that are pertinent for big data integration in a variety of domain applications, such as urban sustainability, transportation networks, policy studies, and public health. These tables, however, are heterogeneous in structure, concepts, and metadata. One of the challenges in semantically extracting geographic data is the need to resolve these heterogeneities so as to uncover a conceptual hierarchy, metadata associated with instances, and geographic information---corresponding respectively to ontologies, elements that we call features, and cell values that can be used to identify geographic coordinates. In this paper, we present an architecture with methods to: (1) extract feature-rich web tables; (2) identify features; (3) construct a schema and instances using RDF; (4) perform geocoding. Preliminary experiments led to high accuracy in table identification and feature naming even when compared to manual evaluation.","PeriodicalId":167948,"journal":{"name":"Workshop on Geographic Information Retrieval","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115719718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 20
Every move you make I'll be watching you: geographical focus detection on Twitter 你的一举一动我都会盯着你:推特上的地理焦点检测
Workshop on Geographic Information Retrieval Pub Date : 2013-11-05 DOI: 10.1145/2533888.2533928
F. Peregrino, D. Tomás, F. Llopis
{"title":"Every move you make I'll be watching you: geographical focus detection on Twitter","authors":"F. Peregrino, D. Tomás, F. Llopis","doi":"10.1145/2533888.2533928","DOIUrl":"https://doi.org/10.1145/2533888.2533928","url":null,"abstract":"On-line Social Networks have increased their popularity rapidly since their creation, providing a huge amount of data which can be leverage to extract useful information related to commercial and social human behaviours. One of the most useful information that can be extracted is the geographical one. This paper shows an approach to detect the geographical focus of Twitter users at city level based on the text of the tweets that users have sent and external information from Wikipedia. The main goal of this work is to show how important could be external formal text resources such as Wikipedia when it comes to resolve the geographical focus in short pieces of informal natural language text. In order to accomplish this objective, we have assessed our system with a language model system, comparing the results using only the informal pieces of text (tweets) and merging it with formal text coming from Wikipedia. In our experiments, we found that the aid of formal pieces of text, such as those obtained from the Wikipedia articles and links, could be useful when the existing amount of data is rather limited.","PeriodicalId":167948,"journal":{"name":"Workshop on Geographic Information Retrieval","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116218410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Linking context and proximity through web corpus 通过网络语料库链接上下文和接近度
Workshop on Geographic Information Retrieval Pub Date : 2013-11-05 DOI: 10.1145/2533888.2533936
Sen Xu, A. Klippel
{"title":"Linking context and proximity through web corpus","authors":"Sen Xu, A. Klippel","doi":"10.1145/2533888.2533936","DOIUrl":"https://doi.org/10.1145/2533888.2533936","url":null,"abstract":"Proximity, a vague spatial relationship between a reference object (RO) and a located object (LO), has been shown to be influenced by many contextual factors rather than determined solely by the Euclidean distance between RO and LO. In this paper, a list of potential contextual factors that may influence how human conceptualize proximity was reviewed. Focusing on RO, LO, and geographical context we adopted a web-based corpus method by crawling the Web to build a spatial language corpus on linguistically specified proximity relationships. Spatial named entity recognition and entity resolution were used to extract RO, LO, and contextual factors out from the corpus. By mapping and analyzing the correlation between distance and contextual factors, this study provides insights on how different contextual factors influence the conceptualization of spatial proximity.","PeriodicalId":167948,"journal":{"name":"Workshop on Geographic Information Retrieval","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130669266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Assessment of the accuracy of GeoNames gazetteer data GeoNames地名词典数据准确性评估
Workshop on Geographic Information Retrieval Pub Date : 2013-11-05 DOI: 10.1145/2533888.2533938
Dirk Ahlers
{"title":"Assessment of the accuracy of GeoNames gazetteer data","authors":"Dirk Ahlers","doi":"10.1145/2533888.2533938","DOIUrl":"https://doi.org/10.1145/2533888.2533938","url":null,"abstract":"Gazetteers are the basis of many geospatial applications and serve an important role to collect and make available knowledge about the physical world such as place names and their coordinates. GeoNames is one of the largest and most often used gazetteer and it is generally assumed to be of sufficient quality. In this paper, we examine the quality and accuracy of the data in more detail, triggered by some anomalies encountered during its use. We present a classification of inaccuracies ranging from grid patterns, imprecise coordinates, overlaps and repetitions as well as misclassifications and visualize these for a range of countries. We finally give an outlook into potential corrections.","PeriodicalId":167948,"journal":{"name":"Workshop on Geographic Information Retrieval","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129246749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 90
Creating test collections from user generated content for GIR evaluation 根据用户生成的内容为GIR评估创建测试集合
Workshop on Geographic Information Retrieval Pub Date : 2013-11-05 DOI: 10.1145/2533888.2533934
Damien Palacio, C. Derungs, R. Purves
{"title":"Creating test collections from user generated content for GIR evaluation","authors":"Damien Palacio, C. Derungs, R. Purves","doi":"10.1145/2533888.2533934","DOIUrl":"https://doi.org/10.1145/2533888.2533934","url":null,"abstract":"Evaluation of the effectiveness of Geographic Information Retrieval (GIR) systems is challenging and time consuming. We describe an approach to such evaluations, where we use user generated content in the form of text and associated metadata to build a large test colletion automatically. We can thus show that the UGC test collection is useful for evaluating and exploring some of the critical aspects of a GIR, for instance by submitting large numbers of queries.","PeriodicalId":167948,"journal":{"name":"Workshop on Geographic Information Retrieval","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131164948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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