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Query Processing of Geosocial Data in Location-Based Social Networks

Arianna D'Ulizia, Patrizia Grifoni, Fernando Ferri
2021 ISPRS International Journal of Geo-Information  
In this paper, we focus on the issue of query processing by providing a systematic literature review of geosocial data representations, query processing methods, and evaluation approaches published over  ...  Due to the ongoing interest in this research topic, the results of this survey are valuable to many researchers and practitioners by gaining an in-depth understanding of the geosocial querying process  ...  score, keywords similarity, visiting time score, and social relationship into consideration S40 diversified top-k geosocial keyword (D k GSK) query Table 9 . 9 Main types of spatial, social, and collective  ... 
doi:10.3390/ijgi11010019 fatcat:lw3mjaoj2vfytazrfuvuekyewa

History by Diversity

Jaspreet Singh, Wolfgang Nejdl, Avishek Anand
2016 Proceedings of the 2016 ACM on Conference on Human Information Interaction and Retrieval - CHIIR '16  
By incorporating temporal priors based on publication times and temporal expressions, we diversify both on the aspect and temporal dimensions.  ...  We test our methods by constructing a test collection based on The New York Times Collection with a workload of 30 queries of historical intent assessed manually.  ...  On the other hand [7] diversifies based on time without explicitly considering topical aspects.  ... 
doi:10.1145/2854946.2854959 dblp:conf/chiir/SinghNA16 fatcat:x7vpwfbmhrdblemcusbkgxi5sq

Seasonality in Human Interest in Berry Plants Detection by Google Trends

Ayumi Kotani, Nagai Shin, Shunsuke Tei, Andrey Makarov, Tuyara Gavrilyeva
2021 Frontiers in Forests and Global Change  
We investigated the seasonal dynamics of human interest in berries growing in boreal, subarctic and Arctic ecosystems, mainly in Russia, based on internet search data via Google Trends.  ...  Supplementary Table 1 | Related queries for given keyword with the limited topic "Plants" (search topics option) (score > 20).  ...  RESULTS Search Results Supplementary Table 1 shows a list of queries for the examined keywords by a search topic option.  ... 
doi:10.3389/ffgc.2021.688835 fatcat:m4o26sxhurbehoudfingjwzzqu

Mining subtopics from different aspects for diversifying search results

Chieh-Jen Wang, Yung-Wei Lin, Ming-Feng Tsai, Hsin-Hsi Chen
2012 Information retrieval (Boston)  
In addition, labeling topic categories and concept tags on each returned document is explored.  ...  Experiments are conducted on the ClueWeb09 dataset with the topics of the TREC09 and TREC10 Web Track diversity tasks.  ...  Introduction Users' queries represented by a few keywords usually contain a certain extent of ambiguity (Spärck-Jones et al. 2007 ).  ... 
doi:10.1007/s10791-012-9215-y fatcat:l35ktd43zjdnffmy7enlmxrjse

Enhanced Information Access to Social Streams Through Word Clouds with Entity Grouping

Martin Leginus, Leon Derczynski, Peter Dolog
2015 Proceedings of the 11th International Conference on Web Information Systems and Technologies  
We find that word clouds with grouped named entities attain significantly broader coverage and significantly decreased content duplication.  ...  Gather a tweet collection -a set of tweets corresponding to a certain trending topic or a query on Twitter. 2.  ...  This may be performed as a general-purpose technique, and also to "targeted" streams, e.g. where tweets are filtered based on user-defined criteria such as keywords or spatial regions. grouping.  ... 
doi:10.5220/0005403101830193 dblp:conf/webist/LeginusDD15 fatcat:7at67jj37rgbbhcka3gakqogae

Keyword Search on Large Graphs: A Survey

Jianye Yang, Wu Yao, Wenjie Zhang
2021 Data Science and Engineering  
In spite of the great importance of graph keyword search, we, however, notice that the latest survey on this topic is far out of date.  ...  An important task on analyzing and mining these graphs is keyword search.  ...  Spatial Keyword Query on Road Networks • Diversified spatial keyword search. Zhang et al. [102] study the problem of diversified spatial keyword search on road networks.  ... 
doi:10.1007/s41019-021-00154-4 fatcat:qo5ikgtj2zhetbhenljyujxbli

Explicit web search result diversification

Rodrygo L.T. Santos
2012 SIGIR Forum  
In particular, as keyword-based representations of the possible information needs underlying a query, BS and WT often comprise aspects (i.e., query suggestions or sub-topics) that share common terms with  ...  Since TREC only provides a natural language description for each sub-topic, we obtain a shorter, keyword-like version using Amazon's Mechanical Turk. 8 This step was necessary to make these sub-topics  ...  Probability models for information retrieval based on Divergence From Randomness. Efficient computation of diverse query results. In Proceedings of the 24th Inter-  ... 
doi:10.1145/2492189.2492205 fatcat:g3f4j6r6ivhtzbm6mfi2zigsm4

TopicViz: Semantic Navigation of Document Collections [article]

Jacob Eisenstein, Duen Horng "Polo" Chau, Aniket Kittur, Eric P. Xing
2011 arXiv   pre-print
We describe several use scenarios in which TopicViz supports rapid sensemaking on large document collections.  ...  In this paper we show how topic modeling -- a technique for identifying latent themes across large collections of documents -- can support semantic exploration.  ...  But the coverage of this document set depends on the quality of the original query.  ... 
arXiv:1110.6200v2 fatcat:p2pb4pcnrnaorie22ixzvilmai

A Survey on Automatically Mining Facets for Web Queries

Duhita V. Pawar, Vina M. Lomte
2017 International Journal of Electrical and Computer Engineering (IJECE)  
<p>In this paper, a detailed survey on different facet mining techniques, their advantages and disadvantages is carried out.  ...  The objectives of their research are: (1) To present automated solution to derive the query facets by analyzing the text query; (2) To create taxonomy of query refinement strategies for efficient results  ...  spatial queries.  ... 
doi:10.11591/ijece.v7i6.pp3700-3704 fatcat:ahqoepjrfbb75c4xfjcdqnfidm

Earth Observation Data Interoperability Arrangement with Vocabulary Registry [chapter]

Masahiko Nagai, Ashik Rajbhandari, Masafumi Ono, Ryosuke Shibaski
2014 Communications in Computer and Information Science  
This is useful to know for communication with the appropriate person in cases with more than one author.  ...  At the same time, semantic interoperability must be considered as a heterogeneous condition and also very diversified with a large-volume data.  ...  Since various kinds of datasets stored in DIAS core system increase, it is necessary to support searching datasets based on keywords, spatial conditions, and temporal conditions with created metadata.  ... 
doi:10.1007/978-3-319-08732-0_10 fatcat:emb7zzhlpzaqzmdo6cku5eeove

Topical Discovery of Web Content [article]

Giancarlo Crocetti
2015 arXiv   pre-print
an article in order to reduce, to a minimum, false positives represented by a match on a keyword that is showing up on the latest news box of the same page.  ...  This work describes the theory and the implementation of a new software tool, the "Web Topical Discovery System" (WTDS), which provides an approach to the automatic discovery and selection of new web pages  ...  In order to maximize the knowledge around the topic described by the keywords, ideally, we want to select content that is diversified by minimizing document similarity among the retrieved content.  ... 
arXiv:1507.02002v1 fatcat:beidlu2dvncknip35upnetb5sq

Almighty Twitter, what are people asking for?

Zhe Liu, Bernard J. Jansen
2012 Proceedings of the American Society for Information Science and Technology  
openness to diversified answers.  ...  In addition to our findings on the topical domains, we also observe that social search contains a significantly less proportion of direct communication than general tweets, showing user's relatively higher  ...  in terms of their topic coverage.  ... 
doi:10.1002/meet.14504901134 fatcat:twkpqnnmzzaajdiyqkaymj56ry

Cities on and off the map: A bibliometric assessment of urban globalisation research

J Miguel Kanai, Richard Grant, Radu Jianu
2017 Urban Studies  
The moving spatial average of publication counts also implies that the topical centre of published research gravity is shifting away from Euro-America.  ...  Drawing on social science publications indexed in English (Scopus database), our results provide grounds for cautious optimism: recent publications offer broader, though still uneven coverage.  ...  Automated keyword-based bibliometric queries, as we argued above, can be applied to other realms of urban knowledge and to a broader set of questions.  ... 
doi:10.1177/0042098017720385 fatcat:c7p5g5tvjvbavgve3jwiwad3m4

A Bipartite Graph-Based Ranking Approach to Query Subtopics Diversification Focused on Word Embedding Features

Md Zia ULLAH, Masaki AONO
2016 IEICE transactions on information and systems  
A diversified ranked list of subtopics covering possible intents of a query is assembled by balancing the relevance and novelty.  ...  Given a query, we aggregate the suggested queries from search engines as candidate subtopics and estimate the relevance of them with the given query based on word embedding and content-aware features by  ...  The diversified retrieval models should result in a ranked list of documents that provides the maximum coverage and minimum redundancy with respect to the possible subtopics.  ... 
doi:10.1587/transinf.2016edp7190 fatcat:2oi4k3w7n5fabnkzsjrxzp4mue

Mapping the evolution and current trends in climate change adaptation science

Johanna Nalau, Brodie Verrall
2021 Climate Risk Management  
Our results show an annual average increase of 28.5% in climate change adaptation publications, with over 26,000 authors publishing on this topic, and increasing diversity in publishing sources.  ...  A B S T R A C T Research on climate change adaptation has increased in number and significance since the 1970s.  ...  Acknowledgments The authors would like to thank Associate Professor Robbert Biesbroek and Emeritus Professor John Handmer for their constructive comments on an earlier draft of this manuscript.  ... 
doi:10.1016/j.crm.2021.100290 fatcat:axvpj5cipndulpx5nofgrt4q2u
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