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Data summaries for on-demand queries over linked data
2010
Proceedings of the 19th international conference on World wide web - WWW '10
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queries over Linked Data on the Web exploiting the source summary, and evaluate the system using synthetically generated queries. ...
An ideal query answering system for Linked Data should return current answers in a reasonable amount of time, even on corpora as large as the Web. ...
In summary, the proposed approach represents a novel, efficient and effective way of supporting source selection for live queries over the Linked Data Web. ...
doi:10.1145/1772690.1772733
dblp:conf/www/HarthHKPSU10
fatcat:qtbmh2ypnvemho2qsi5kxa2oqm
Special issue on querying the data web
2011
World wide web (Bussum)
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The rapid growth of structured data on the Web has created a high demand for making this content more reusable and consumable. ...
On the other side, traditional structured querying languages cannot be used directly as data on the Data Web is heterogeneous, large, distributed, schema-free, and not intuitive for web users. ...
The second paper by Umbrich et al., "Comparing Data Summaries for Processing Live Queries over Linked Data", addresses the problem of querying Linked Data distributed over multiple sources. ...
doi:10.1007/s11280-011-0139-z
fatcat:73bpqsnpvfcbhlvlzup3mc34iu
A note on intelligent exploration of semantic data
2019
Semantic Web Journal
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The special issue compiles three technical contributions that significantly advance the state-of-the-art in exploration of semantic data using semantic web techniques and technologies. ...
For this reason, there is a need for systems that can produce on-demand rewritings of queries. ...
It is common practice to query different linked datasets in order to get as much information as possible on distinct topics. ...
doi:10.3233/sw-190350
fatcat:pa6fu2amwbamfko5x242ut37z4
Hypermedia-Based Discovery for Source Selection Using Low-Cost Linked Data Interfaces
2016
International Journal on Semantic Web and Information Systems (IJSWIS)
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Therefore, the authors introduce a discovery approach for Linked Data interfaces based on hypermedia links and controls, and apply it to federated query execution with Triple Pattern Fragments. ...
Evaluating federated Linked Data queries requires consulting multiple sources on the Web. Before a client can execute queries, it must discover data sources, and determine which ones are relevant. ...
Umbrich et al. (2011) published an extensive report on data summaries for live Linked Data querying. ...
doi:10.4018/ijswis.2016070103
fatcat:qjranyonpfhmnmywghl367a7zm
Towards Querying in Decentralized Environments with Privacy-Preserving Aggregation
[article]
2020
arXiv
pre-print
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Since personal data in these decentralised ecosystems are distributed across many sources, there is a need for techniques to support efficient privacy-preserving query execution over personal data stores ...
Existing decentralised Web-based ecosystems, such as Solid, aim to combat personal data exploitation on the Web by enabling individuals to manage their data in the personal data store of their choice. ...
Pods could generate these summaries lazily on demand, periodically or upon file changes. Following the approach from Vander Sande et al. ...
arXiv:2008.06265v1
fatcat:xqoboww3ibghhhted3bmbn4nuq
LOD-a-lot
2017
Proceedings of the 13th International Conference on Semantic Systems - Semantics2017
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Many data scientists make use of Linked Open Data (LOD) as a huge interconnected knowledge base represented in RDF. ...
For these use cases LOD-a-lot signi cantly reduces the cost and complexity of conducting Data Science. ...
An additional index le of 220GB, which further optimizes querying [13] , can be created on demand. e memory footprint required for exposing LOD-alot through an online endpoint, or for querying it locally ...
doi:10.1145/3132218.3132241
dblp:conf/i-semantics/BeekFV17
fatcat:3vl3smlzsrfzpaihuyomvhpmvi
Database Summarization and Publishing in Wireless Environments
[chapter]
2006
Lecture Notes in Computer Science
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We then propose a method to create various summary databases from the main database available at server side, on the basis of these query patterns. ...
Processing queries under this scenario is challenging because we need to organize the broadcast data to efficiently process queries of an average mobile client. ...
A client will be interested in some data items for which he/she would like to place a demand. ...
doi:10.1007/11947950_37
fatcat:wtmwke4k4rfuvg3dp4xvimionq
Page 1870 of Mathematical Reviews Vol. , Issue 98C
[page]
1998
Mathematical Reviews
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Owing to immense memory demands one cannot first calculate P explicitly and then compute its marginal by “summing over remaining variables”. ...
Summary: “We present efficient algorithms for shortest-path and minimum-link-path queries between two convex polygons inside a simple polygon P, which acts as an obstacle to be avoided. ...
Keyword Query Routing
2017
Engineering and Technology Journal
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Keyword search is an intuitive paradigm for searching linked data sources on the web. ...
We propose a novel method for computing top-k routing plans based on their potentials to contain results for a given keyword query. ...
Keyword Query Routing We propose to investigate the problem of keyword query routing for keyword search over large number of structured and Linked Data sources. ...
doi:10.18535/etj/v2i1.01
fatcat:sp4t3xqla5dwhocz57zzl4szde
EAGER: Collaborative 3D Materials Science Research in the Cloud
2017
Figshare
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This project aims at integrating the popular Dream.3D software for materials science research into Bisque, thus enabling sharing of data and methods, and collaborative research on large scale datasets. ...
BisQue (Bio Semantic Query User Environment) is a cloud-based analysis platform developed in the Center for Bio-Image Informatics at UCSB. ...
the
web browser (data fetch
on demand) ...
doi:10.6084/m9.figshare.4652710
fatcat:gm5mcooorbcolhz77iziu2ng2q
Locating Information in Video by Browsing and Searching
[chapter]
2006
Signals and Communication Technology
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The system employs automatic story segmentation, and displays the results of text and image-based queries in ranked sets of story summaries. ...
In many cases, it is not sufficient to search for relevant videos, but rather to identify relevant clips, typically less than one minute in length, within the videos. ...
Detail-on-demand Video We use detail-on-demand video as a representation for an interactive multilevel video summary. ...
doi:10.1007/978-3-540-33215-2_10
fatcat:vdgjxvw5ujhxjdfsb6bat7bkvy
Page 16 of Journal of Public Health Management and Practice Vol. 8, Issue 4
[page]
2002
Journal of Public Health Management and Practice
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In response to this data demand CHART designed and implemented a dial-up system for communities to access data. ...
The resulting tables can be downloaded to Excel for further summary, analysis, graphing and presentation. ...
Demand-driven computation of interprocedural data flow
1995
Proceedings of the 22nd ACM SIGPLAN-SIGACT symposium on Principles of programming languages - POPL '95
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In our framework, a demand for data flow information is modeled as a set of data flow queries. ...
The derived demand-driven algorithms find responses to these queries through a partial reversal of the respective data flow analysis. ...
Acknowledgements We thank Tom Reps and the referees for their comments on an earlier draft of this paper. ...
doi:10.1145/199448.199461
dblp:conf/popl/DuesterwaldGS95
fatcat:hkdu2kkfpbbihfcviiu3cxpohq
Client-server, Distributed Database Strategies in a Health-care Record System for a Homeless Population
1994
JAMIA Journal of the American Medical Informatics Association
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Information on 129 patient encounters from 37 unique sites has been entered. A full client-server system has been designed. ...
Benchmarks show that while the relative performance of a communication link based upon a phone line is 0.07 to 0.15 that of a local area network, optimization permits adequate response. ...
Special thanks to Dyan Blewett, Judy Piggins, Mitch Feldman, and Laurie Hassan for their assistance, and to Dr. Robert Jenders for his editorial comments. ...
doi:10.1136/jamia.1994.95236148
pmid:7719799
pmcid:PMC116196
fatcat:psb7ky5xjvgwxckbdwpz5v7bnq
Continuous queries over data streams
2001
SIGMOD record
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In this paper we focus primarily on the problem of query processing, specifically on how to define and evaluate continuous queries over data streams. ...
First, we specify a general and flexible architecture for query processing in the presence of data streams. ...
Acknowledgements We are grateful to Jose Blakeley for excellent comments on an initial draft, and to the entire STREAM group at Stanford for many inspiring discussions. ...
doi:10.1145/603867.603884
fatcat:6ix4y2aym5dppjzpuhg5kxj4bq
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