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Towards Why-Not Spatial Keyword Top-$k$ Queries: A Direction-Aware Approach
2018
IEEE Transactions on Knowledge and Data Engineering
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Index Terms-Why-not questions, spatial keyword top-k queries, query refinement. ...
This paper studies the direction-aware why-not spatial keyword top-k query problem. ...
We adopt the query refinement model to answer why-not questions on direction-aware spatial keyword top-k queries. ...
doi:10.1109/tkde.2017.2778731
fatcat:2ttcfqnpgbczneokxhw5yisbea
Answering why-not spatial keyword top-k queries via keyword adaption
2016
2016 IEEE 32nd International Conference on Data Engineering (ICDE)
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Answering the resulting why-not questions can aid users in retrieving better results. However, no existing techniques are able to answer why-not questions by adapting the query keywords. ...
A spatial keyword top-k query retrieves the best k such objects according to a scoring function that considers both spatial distance and textual similarity. ...
In this paper, we apply the query refinement model to solve the problem of answering why-not questions on spatial keyword top-k queries via keyword adaption. ...
doi:10.1109/icde.2016.7498282
dblp:conf/icde/ChenXLJH16
fatcat:uj7feyiptbfrdbqgepconrbdji
Answering why-not questions on spatial keyword top-k queries
2015
2015 IEEE 31st International Conference on Data Engineering
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Spatial keyword top-k queries retrieve k such objects with the best score according to a ranking function that takes into account a query location and query keywords. ...
We provide techniques that allow the revision of spatial keyword queries such that their results include one or more desired, but missing objects. ...
CONCLUSIONS AND FUTURE WORK In this paper, we studied how to answer why-not questions on spatial keyword top-k queries using query refinement. ...
doi:10.1109/icde.2015.7113291
dblp:conf/icde/ChenLHJX15
fatcat:ajjnuyy4rjfexl3avnp7wa5h2m
Spatial Keyword Querying: Ranking Evaluation and Efficient Query Processing
[article]
2018
PhD series, Technical Faculty of IT and Design, ˜Aalborg=ålborgœ University
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In this thesis, we focus on top-k spatial keyword queries. ...
Thus corresponds to issuing a top-k spatial keyword query [2] .
Definition C.2 (Top-k Spatial Keyword Query). ...
Algorithm The DBSCAN-based algorithm is built on top of the algorithms proposed to process k-STC queries. ...
doi:10.5278/vbn.phd.tech.00039
fatcat:x53exbaxcjd7bjq5g7uwexspqu
Efficient Spatial Keyword Search in Trajectory Databases
[article]
2012
arXiv
pre-print
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Given a user location λ and a keyword set ψ, a top-k query returns k trajectories whose text descriptions cover the keywords ψ and that have the shortest match distance. ...
The fusion of spatial locations and text descriptions in trajectories engenders a new type of top-k queries that take into account both aspects. ...
In this paper, we introduce a new problem: the top-k spatial keyword query (TkSK) on trajectories. ...
arXiv:1205.2880v1
fatcat:xvswrgavtre6heior4tp47fvcy
Query Processing of Geosocial Data in Location-Based Social Networks
2021
ISPRS International Journal of Geo-Information
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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 ...
The increasing use of social media and the recent advances in geo-positioning technologies have produced a great amount of geosocial data, consisting of spatial, textual, and social information, to be ...
S50 Social space Keyword Query returns the top-k semantic trajectory for users has higher social relevance and shorter distance while satisfying spatial and keyword constraints S56 why-not top-k geosocial ...
doi:10.3390/ijgi11010019
fatcat:lw3mjaoj2vfytazrfuvuekyewa
Koios++: A Query-Answering System for Handwritten Input
2012
2012 10th IAPR International Workshop on Document Analysis Systems
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The system is implemented as a web-service and therefore works for handwritten input on digital paper as well as on input on Pen-enabled interactive surfaces. ...
After recognizing a handwritten query, several output hypotheses are sent to a natural language processing system in order to generate a structured query (SPARQL query). ...
In contrast to typical question answering systems [8] , it does not produce a natural language answer for the result, but a structured (graph-shaped) query and a list of values which fill the questioned ...
doi:10.1109/das.2012.48
dblp:conf/das/LiwickiFJD12
fatcat:zwmg5xspjbcunovkdmcd2f6o6e
Database research at the National University of Singapore
2013
SIGMOD record
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We have developed an eAEective model to represent the safe region of a moving top-k spatial-keyword query. ...
The manager could issue a follow-up "why-not" question to clarify why Alice's sales figure is not higher than that of Bob's. ...
doi:10.1145/2503792.2503803
fatcat:vjmwiquqobhhxofmhhkt3q5boy
Interactive Sports Analytics
2018
ACM Transactions on Computer-Human Interaction
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We conduct a user study to compare our method to the conventional keywords-based system and the results show that our method significantly improves the retrieval quality. ...
With the massive amount of fine-grained data being generated, new data-points are being generated, which can shed light on player and team performance. ...
However, another use of these data-points is to elicit interaction from users to answer fine-grained questions that they may not have been previously able to answer. ...
doi:10.1145/3185596
fatcat:ltffscrhbvbjzbhvi7ensgpydi
Using geo-spatial session tagging for smart multicast session discovery
2009
Proceedings of the 2009 ACM symposium on Applied Computing - SAC '09
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In this paper authors propose to leverage mDNS architecture by enabling multicast sessions to be tagged using geographical and spatial information based on the channel contents or service provider location ...
Despite its numerous benefits over IP unicast, multicast has not seen widespread deployment over modern networks. ...
If multiple keywords are present in the query, it is very likely that the query would go to different MSD servers responsible for each of the specified keyword. ...
doi:10.1145/1529282.1529287
dblp:conf/sac/HarshN09
fatcat:xagpi2qpgndgpmwgiiqbd5r4ci
Don't Just Swipe Left, Tell Me Why
2017
Proceedings of the 22nd International Conference on Intelligent User Interfaces - IUI '17
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Query specification with keywords is a popular solution. ...
Based on our analysis and user studies, we demonstrate that query specification by swiping through reason bins is easy and expressive. ...
← 5 (number of bins to generate) procedure generateBins(document d, query Q, ignored bins I) bins ← d.candidate-bins -Q -I return top(bins, k)
If a user does not seed the search, BINGO returns a document ...
doi:10.1145/3025171.3025212
dblp:conf/iui/BeltranHA017
fatcat:ukettpjnwjcljdoobmblcqmedy
From 5Vs to 6Cs: Operationalizing Epidemic Data Management with COVID-19 Surveillance
[article]
2020
biorxiv/medrxiv
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Our dashboard was one of the first released to the public, and remains one of the most visited and highly used. ...
Our dashboard includes a number of advanced features for zooming, filtering, categorizing and visualizing multiple time series on a single canvas. ...
If it fails to meet the minimum threshold, it will be considered a failed query and the user can be alerted that the question could not be answered. ...
doi:10.1101/2020.10.27.20220830
pmid:33140060
pmcid:PMC7605571
fatcat:36v2mh573vhbvjqpblrw2s32nm
Efficient Computation of Polynomial Explanations of Why-Not Questions
2015
Proceedings of the 24th ACM International on Conference on Information and Knowledge Management - CIKM '15
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Answering a Why-Not question consists in explaining why the result of a query does not contain some expected data, called missing answers. ...
This paper [6] focusses on processing Why-Not questions following a query-based approach that identifies the culprit query components. ...
[17] ), reverse skyline queries (Islam et. al. [22] ), reverse Top-k queries (WQRTQ [13] ), spatial keyword Top-K queries (Chen et. al. [10] ) etc. ...
doi:10.1145/2806416.2806426
dblp:conf/cikm/BidoitHT15
fatcat:yhn5i4qsbjbmxk7njdv5f6m6xq
Information retrieval using a hypertext-based help system
1989
SIGIR Forum
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Although subjects did not become lost, individuals with better spatial visualization ability, as measured by a standardized test, were faster at retrieving information and returned to the top of the information ...
A study was conducted on information retrieval using a commercial hypertextbased help system. ...
ACKNOWLEDGMENTS The Sun386i Help System is part of an on-going multidisciplinary effort to develop high quality online information systems. ...
doi:10.1145/75335.75357
fatcat:s7j2fq45mrb4da746rbt55wez4
EKTVQA: Generalized use of External Knowledge to empower Scene Text in Text-VQA
[article]
2022
arXiv
pre-print
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The open-ended question answering task of Text-VQA often requires reading and reasoning about rarely seen or completely unseen scene-text content of an image. ...
We address this zero-shot nature of the problem by proposing the generalized use of external knowledge to augment our understanding of the scene text. ...
In SA-M4C [19] the authors documented that 13% of the questions have one or more spatial preposition (e.g. 'right','top','contains'). ...
arXiv:2108.09717v7
fatcat:bgg3m32qmzhsboyiozgjrmux6i
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