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 Bruno Martins

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Average citations per article4.15
Citation Count220
Publication count53
Publication years2002-2016
Available for download30
Average downloads per article211.80
Downloads (cumulative)6,354
Downloads (12 Months)603
Downloads (6 Weeks)58
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54 results found Export Results: bibtexendnoteacmrefcsv

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1 published by ACM
January 2018 SIGSPATIAL Special: Volume 9 Issue 3, November 2017
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 0,   Downloads (12 Months): 0,   Downloads (Overall): 0

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This article reports on the 1st ACM SIGSPATIAL Workshop on Geospatial Humanities, held in conjunction with the 25th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems. The article outlines the objectives of the workshop, and briefly describes the technical program.

2 published by ACM
October 2016 GIS '16: Proceedings of the 24th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 4,   Downloads (12 Months): 60,   Downloads (Overall): 60

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This paper describes T riplex -ST, a novel information extraction system for collecting spatio-temporal information from textual resources. T riplex -ST is based on a distantly supervised approach, which leverages rich linguistic annotations together with information in existing knowledge bases. In particular, we leverage triples associated with temporal and/or spatial ...
Keywords: spatio-temporal information, distant supervision, open relation extraction, geographic information retrieval, text mining

3
July 2016 HCI '16: Proceedings of the 30th International BCS Human Computer Interaction Conference: Fusion!
Publisher: BCS Learning & Development Ltd.
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 6,   Downloads (12 Months): 8,   Downloads (Overall): 8

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Throughout the years, researchers have tried to understand dynamics and general patterns associated with human movement, e.g. in the context of urban planning, to improve the lives of citizens. To do this, it is necessary to properly analyse the spatio-temporal and the thematic properties of their trajectory data. Thematic maps, ...
Keywords: spatio-temporal data, visual analytics, information visualization, space-time cube, 2d map, trajectories, usability

4 published by ACM
January 2016 ACM SIGIR Forum: Volume 49 Issue 2, December 2015
Publisher: ACM
Bibliometrics:
Citation Count: 1
Downloads (6 Weeks): 1,   Downloads (12 Months): 11,   Downloads (Overall): 19

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Location is a major feature for describing the real world, appearing in many Web applications and search systems as a cross-cutting issue. Envisioning the establishment of an adequate venue for the location topic, LocWeb 2015 continued a workshop series at the intersection of geospatial search, information management, and Web architecture, ...

5 published by ACM
November 2015 GIR '15: Proceedings of the 9th Workshop on Geographic Information Retrieval
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 8,   Downloads (12 Months): 55,   Downloads (Overall): 75

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Many natural language processing applications require information about the spatial locations of objects referenced in text, or spatial relations between these objects in space. For example, the phrase a book on the shelf contains information about the location of the object book , corresponding to a trajector, with respect to ...
Keywords: convolutional neural networks, spatial semantics, natural language processing, spatial role labeling

6 published by ACM
November 2015 GIR '15: Proceedings of the 9th Workshop on Geographic Information Retrieval
Publisher: ACM
Bibliometrics:
Citation Count: 1
Downloads (6 Weeks): 3,   Downloads (12 Months): 26,   Downloads (Overall): 44

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This vision paper argues that a geospatial knowledge base combining textual descriptions for concepts such as places, together with place types, semantic relations between concepts and, most importantly, polygonal geometries associated to the geospatial concepts, constitutes a valuable resource for researchers working on the computational modeling of spatial language. We ...
Keywords: polygonal geometries as geospatial footprints, resources for processing geospatial language, sources of geospatial knowledge

7 published by ACM
November 2015 GIR '15: Proceedings of the 9th Workshop on Geographic Information Retrieval
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 8,   Downloads (12 Months): 58,   Downloads (Overall): 92

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In this paper, we evaluate automated techniques, based on a hierarchical representation for the Earth's surface and leveraging SVM classifiers, for assigning geospatial coordinates to previously unseen documents, using only the raw text as input evidence. We report on experiments with Wikipedia documents in four different languages, and with two ...
Keywords: supervised learning, hierarchical document classification, processing geospatial language, document geocoding

8
November 2015 Proceedings of the 16th Conference of the Spanish Association for Artificial Intelligence on Advances in Artificial Intelligence - Volume 9422
Publisher: Springer-Verlag New York, Inc.
Bibliometrics:
Citation Count: 0

We consider the problem of building a content-based recommender system in a parliamentary context, which may be used for two different but related tasks. First, we consider a filtering task where, given a new document to be recommended, the system can decide those Members of the Parliament who should receive ...
Keywords: User profiles, Content-based recommender systems, Information filtering, Information retrieval, Parliamentary documents

9
August 2015 Expert Systems: The Journal of Knowledge Engineering: Volume 32 Issue 4, August 2015
Publisher: John Wiley & Sons, Inc.
Bibliometrics:
Citation Count: 1

Expert finding is an information retrieval task that is concerned with the search for the most knowledgeable people with respect to a specific topic, and the search is based on documents that describe people's activities. The task involves taking a user query as input and returning a list of people ...
Keywords: Expert Finding, Rank Aggregation, Data Fusion, Information Retrieval, Learning to Rank

10 published by ACM
July 2015 British HCI '15: Proceedings of the 2015 British HCI Conference
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 13,   Downloads (12 Months): 35,   Downloads (Overall): 52

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Two dimensional static maps and three dimensional space-time cubes are among the most studied techniques to visualize human movement data. Previous research suggests that both techniques are useful in different types of tasks. However, the analysis of trajectory data may not be focused in just one type of task, motivating ...
Keywords: 2d map, trajectories, usability, spatio-temporal data, visual analytics, information visualization, space-time cube

11 published by ACM
June 2015 ACM SIGIR Forum: Volume 49 Issue 1, June 2015
Publisher: ACM
Bibliometrics:
Citation Count: 1
Downloads (6 Weeks): 1,   Downloads (12 Months): 8,   Downloads (Overall): 18

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Location is a major aspect behind many approaches in Information Retrieval, naturally appearing in diverse forms and as a cross-cutting topic. To give the location topic an adequate venue, LocWeb 2014 restarted a workshop series at the intersection of geospatial search, information management, and Web architecture, with a main focus ...

12 published by ACM
April 2015 SAC '15: Proceedings of the 30th Annual ACM Symposium on Applied Computing
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 3,   Downloads (12 Months): 29,   Downloads (Overall): 60

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This paper proposes a novel method that leverages georeferenced social media data, together with human assessments of particular words, to estimate population well-being across the U.S. territory. We specifically attempt to learn linear regression models that, by leveraging on simple features that essentially correspond to word counts in lexicons of ...
Keywords: applications of geo-referenced social media, community well-being, text-driven forecasting

13
April 2015 Journal of Location Based Services: Volume 9 Issue 2, June 2015
Publisher: Taylor & Francis, Inc.
Bibliometrics:
Citation Count: 0

With the prevalence of mobile computing systems and location based services, large amounts of spatio-temporal data are nowadays being collected, representing the mobility of people performing various activities. However, despite the increasing interest in the exploration of these data, there are still open challenges in various application contexts, e.g. related ...
Keywords: trajectory data, cartography, human–computer interaction, interactive maps, space-time cubes, static maps, visualisation, spatio-temporal data

14 published by ACM
November 2014 CIKM '14: Proceedings of the 23rd ACM International Conference on Conference on Information and Knowledge Management
Publisher: ACM
Bibliometrics:
Citation Count: 1
Downloads (6 Weeks): 4,   Downloads (12 Months): 8,   Downloads (Overall): 61

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The LocWeb 2014 workshop continues a successful workshop series at the intersection of geospatial search, information management, and Web architecture with a focus towards location-aware information access . The workshop reflects a multitude of fields that demand and utilize location features, featuring presentations that look at the topic of location ...
Keywords: the geospatial web, mobile applications, location-aware information access

15
September 2014 BCS-HCI '14: Proceedings of the 28th International BCS Human Computer Interaction Conference on HCI 2014 - Sand, Sea and Sky - Holiday HCI
Publisher: BCS
Bibliometrics:
Citation Count: 2
Downloads (6 Weeks): 1,   Downloads (12 Months): 6,   Downloads (Overall): 23

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The increasing popularity of smartphones and position tracking devices fostered the interest on human trajectory data analysis, and enabled the collection of large amounts of movement data. However, there are still several open challenges regarding the visual and interactive analysis of these data, as more people, often non-experienced, start using ...
Keywords: Geographic Information Systems, User Study, Visual Analytics, Space-Time Cube, Trajectory Data

16
September 2013 BCS-HCI '13: Proceedings of the 27th International BCS Human Computer Interaction Conference
Publisher: BCS Learning & Development Ltd.
Bibliometrics:
Citation Count: 3
Downloads (6 Weeks): 2,   Downloads (12 Months): 6,   Downloads (Overall): 30

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Huge amounts of movement data are nowadays being collected, as a consequence of the prevalence of mobile computing systems and location based services. While the research interest on the analysis of spatio-temporal data has also significantly increased, there are still several open challenges in areas such as interaction and information ...
Keywords: space-time cube, visualization, 2D map, trajectories, interaction, spatio-temporal data

17
June 2013 MDM '13: Proceedings of the 2013 IEEE 14th International Conference on Mobile Data Management - Volume 02
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 2

With the prevalence of mobile computing systems and location based services, the research interest on spatio-temporal data has significantly increased, as evidenced by the collection of huge amounts of movement data. Consequently, this type of data raises several issues, namely in the research area of geographic information visualization. Despite the ...
Keywords: mobility data, visualization, usability, GIS, space-time cubes, animated maps, iterative maps

18 published by ACM
October 2012 BooksOnline '12: Proceedings of the fifth ACM workshop on Research advances in large digital book repositories and complementary media
Publisher: ACM
Bibliometrics:
Citation Count: 2
Downloads (6 Weeks): 8,   Downloads (12 Months): 32,   Downloads (Overall): 199

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Reading is an important activity for individuals. Content-based recommendation systems are, typically, used to recommend scientific papers or news, where search is driven by topic. Literary reading or reading for leisure differs from scientific reading, because users search books not only for their topic but also by author or writing ...
Keywords: book recommendation, recommendation systems, relevance-feedback, stylometry

19 published by ACM
June 2012 JCDL '12: Proceedings of the 12th ACM/IEEE-CS joint conference on Digital Libraries
Publisher: ACM
Bibliometrics:
Citation Count: 5
Downloads (6 Weeks): 9,   Downloads (12 Months): 66,   Downloads (Overall): 340

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Literary reading is an important activity for individuals and can be a long term commitment, making book choice an important task for book lovers and public library users. In this paper, we present a hybrid recommendation system to help readers decide which book to read next. We study book and ...
Keywords: author recommendation, book recommendation, hybrid recommender

20 published by ACM
March 2012 SAC '12: Proceedings of the 27th Annual ACM Symposium on Applied Computing
Publisher: ACM
Bibliometrics:
Citation Count: 8
Downloads (6 Weeks): 1,   Downloads (12 Months): 37,   Downloads (Overall): 253

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This paper describes an approach for resolving user identifiers in the context of social networks, using techniques from the area of duplicate record detection [1]. We reduce the user identity resolution problem into a binary classification task, where the goal is to classify pairs of identifiers as either belonging to ...
Keywords: identity resolution, supervised learning, social networks



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