Filters








105,342 Hits in 7.2 sec

Complex pattern matching in complex structures: The XSeq approach

Kai Zeng, Mohan Yang, B. Mozafari, C. Zaniolo
2013 2013 IEEE 29th International Conference on Data Engineering (ICDE)  
There is much current interest in applications of complex event processing over data streams and of complex pattern matching over stored sequences.  ...  XSeq achieves higher expressiveness through an extension of XPath based on Kleene-* pattern constructs, and achieves very efficient execution, on both stored and streaming data, using Visibly Pushdown  ...  CONCLUSION The XSeq system supports a powerful language extension to XPath which is effective at expressing complex sequence patterns over both stored and streaming XML data.  ... 
doi:10.1109/icde.2013.6544936 dblp:conf/icde/ZengYMZ13 fatcat:u2avgztxhncvbpu5akla6fagc4

A demonstration of the BigDAWG polystore system

A. Elmore, T. Kraska, S. Madden, D. Maier, T. Mattson, S. Papadopoulos, J. Parkhurst, N. Tatbul, M. Vartak, S. Zdonik, J. Duggan, M. Stonebraker (+6 others)
2015 Proceedings of the VLDB Endowment  
This complex application serves the needs of doctors and researchers and provides real-time support for streams of patient data.  ...  Such applications not only call for large-scale analytics, but also for real-time streaming support, smaller analytics at interactive speeds, data visualization, and cross-storage-system queries.  ...  After that, we outline our support for exploratory analytics. We then note how BigDAWG handles streaming data and complex analytics.  ... 
doi:10.14778/2824032.2824098 fatcat:vzqvocndunbhlgz26tiowj4kki

K*SQL

Barzan Mozafari, Kai Zeng, Carlo Zaniolo
2010 Proceedings of the 2010 international conference on Management of data - SIGMOD '10  
In this demo, we first introduce the core features of our language in expressing complex pattern queries over both relational and XML data.  ...  This burst of interest from both the research community and the commercial world is due to the many database and data stream applications made possible by these extensions, including financial services  ...  Acknowledgements: We would like to thank Yijian Bai and Hetal Thakkar for the Stream Mill system, Vincenzo Russo for the GUI, Nikolay Laptev and Hamid Mousavi for their invaluable help in extending Stream  ... 
doi:10.1145/1807167.1807302 dblp:conf/sigmod/MozafariZZ10 fatcat:eptui63qi5fv7iaipl4d32bw3u

Method of Complex Event Processing over XML Streams

Tatsuki Matsuda, Yuki Uchida, Satoru Fujita
2015 Proceedings of the Second International Workshop on Databases and the Web - ExploreDB'15  
In addition, a query language, called QLMXS, over XML streams for complex event processing is described. QLMXS supports all functions of the algebraic expressions in a SQL-like form.  ...  This paper describes a query processing engine for multiple continuous XML data streams with correlated data as a notification mechanism for navigating data exploration.  ...  COMPLEX EVENT PROCESSING CEP is a well-known technique for high speed analysis over continuous stream data. Many studies have examined stream analysis and effective use of CEP systems.  ... 
doi:10.1145/2795218.2795220 dblp:conf/sigmod/MatsudaUF15 fatcat:htmaozzywrg3xmcav6qzn67dae

Index tuning for adaptive multi-route data stream systems

Karen Works, Elke A. Rundensteiner, Emmanuel Agu
2010 2010 IEEE International Symposium on Parallel & Distributed Processing, Workshops and Phd Forum (IPDPSW)  
In addition, our AMRI index tuner exploits the hierarchical interrelationships between query access patterns to compress the statistics collected for assessment.  ...  AMR dynamically routes batches of tuples to operators in the query network based on routing criteria and up-to-date system statistics.  ...  We thank Luping Ding, and WPI graduate peers for revisions and CAPE software.  ... 
doi:10.1109/ipdpsw.2010.5470845 dblp:conf/ipps/WorksRA10 fatcat:4klpbfvqbjghfdcfc4iyyg3wsq

OptImatch: Semantic Web System with Knowledge Base for Query Performance Problem Determination [article]

Guilherme Damasio, Piotr Mierzejewski, Jaroslaw Szlichta, Calisto Zuzarte
2015 arXiv   pre-print
We introduce a novel semantic web system that allows a relatively naive user to search for arbitrary patterns and to get recommendations stored in a knowledge base either by experts or added by the user  ...  We present the OptImatch system that offers a way to (a) look for varied user defined problem patterns in QEPs and (b) automatically get recommendations from an expert provided and user customizable knowledge  ...  Therefore, we can conclude that our tool allows for real time, onthe-fly search for patterns over diagnostic data.  ... 
arXiv:1510.03302v1 fatcat:azvdmvukhvc2ndnx4lpsbzw6nq

When things matter: A survey on data-centric internet of things

Yongrui Qin, Quan Z. Sheng, Nickolas J.G. Falkner, Schahram Dustdar, Hua Wang, Athanasios V. Vasilakos
2016 Journal of Network and Computer Applications  
This article reviews the main techniques and state-of-the-art research efforts in IoT from data-centric perspectives, including data stream processing, data storage models, complex event processing, and  ...  Open research issues for IoT data management are also discussed.  ...  We express our gratitude to the anonymous reviewers for their comments and suggestions which have greatly helped us to improve this work.  ... 
doi:10.1016/j.jnca.2015.12.016 fatcat:4roub2ifdjgide4kxhmqqrk44i

When Things Matter: A Data-Centric View of the Internet of Things [article]

Yongrui Qin, Quan Z. Sheng, Nickolas J.G. Falkner, Schahram Dustdar, Hua Wang, Athanasios V. Vasilakos
2014 arXiv   pre-print
This article surveys the main techniques and state-of-the-art research efforts in IoT from data-centric perspectives, including data stream processing, data storage models, complex event processing, and  ...  Open research issues for IoT data management are also discussed.  ...  stream query processing are inadequate for efficient evaluation of pattern queries over streams.  ... 
arXiv:1407.2704v2 fatcat:crbago2kqrbsbaoaig63yfvbua

Enabling Context-Aware Search using Extracted Insights from IoT Data Streams

V. Janeiko, R. Rezvani, N. Pourshahrokhi, S. Enshaeifar, M. Krogbak, S. H. Christophersen, T. Elsaleh, P. Barnaghi
2020 2020 Global Internet of Things Summit (GIoTS)  
are enabled by a pattern analysis algorithm, supported by monitoring of data streams for changes in quality of information and remediation.  ...  This paper describes a search engine designed for indexing, searching and accessing urban sensory data.  ...  ACKNOWLEDGEMENT This work has been sponsored by the EU Horizon 2020 Research and Innovation programme, through the IoTCrawler project (contract no. 779852).  ... 
doi:10.1109/giots49054.2020.9119535 dblp:conf/giots/JaneikoRPEKCEB20 fatcat:dag5lytsynb4rhlgcx7wvmsoay

VERT: A Semantic Approach for Content Search and Content Extraction in XML Query Processing [chapter]

Huayu Wu, Tok Wang Ling, Bo Chen
2007 Lecture Notes in Computer Science  
Processing a twig pattern query in XML document includes structural search and content search. Most existing algorithms only focus on structural search.  ...  Due to the high variety of contents, to mix content search and structural search suffers from management problem of contents and low performance.  ...  Content problems include how to properly manage contents, how to efficiently process content search during query processing and how to extract contents to answer the queries. E.g.  ... 
doi:10.1007/978-3-540-75563-0_36 fatcat:3fzl6yi3p5c7zcp63t3ioqtumy

Towards a unified storage and ingestion architecture for stream processing

Ovidiu-Cristian Marcu, Alexandru Costan, Gabriel Antoniu, Maria S. Perez-Hernandez, Radu Tudoran, Stefano Bortoli, Bogdan Nicolae
2017 2017 IEEE International Conference on Big Data (Big Data)  
This separation often leads to I/O redundancy (e.g., write data twice to disk or transfer data twice over the network) and interference (e.g., I/O bottlenecks when collecting data streams and writing archival  ...  In this position paper, we argue for a unified ingestion and storage architecture for streaming data that addresses the aforementioned challenge.  ...  Given the complexity of stream SQL semantics and the support they require for handling state for such operations, it is important to understand how a stream storage system can sustain and optimize such  ... 
doi:10.1109/bigdata.2017.8258196 dblp:conf/bigdataconf/MarcuCAPTBN17 fatcat:w5a2fruranfflbwchhfuerqrpm

An Empirical Characterization of Event Sourced Systems and Their Schema Evolution – Lessons from Industry [article]

Michiel Overeem, Marten Spoor, Slinger Jansen, Sjaak Brinkkemper
2021 arXiv   pre-print
A description of the pattern itself and its relation to other patterns as discussed with practitioners is given.  ...  Based on the discussion of 19 event sourced systems we explore the rationale for and the context of the event sourcing pattern.  ...  Acknowledgements The authors thank all the engineers for sharing their valuable experience and their willingness to contribute to this study.  ... 
arXiv:2104.01146v1 fatcat:kws6bd4cd5eqfbxno2xshxuzze

Webzeitgeist

Ranjitha Kumar, Arvind Satyanarayan, Cesar Torres, Maxine Lim, Salman Ahmad, Scott R. Klemmer, Jerry O. Talton
2013 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems - CHI '13  
This paper introduces design mining for the Web: using knowledge discovery techniques to understand design demographics, automate design curation, and support data-driven design tools.  ...  This idea is manifest in Webzeitgeist, a platform for large-scale design mining comprising a repository of over 100,000 Web pages and 100 million design elements.  ...  We hope that Webzeitgeist will lower the barrier to building data-driven design applications and engender a new class of Web design tools.  ... 
doi:10.1145/2470654.2466420 dblp:conf/chi/KumarSTLAKT13 fatcat:7uv72ozh3jbmde3xg2mcrautby

Complex Event Processing on Real-time Video Streams

Ziyu Li
2020 Very Large Data Bases Conference  
In this paper, we first identify the need for an expressive CEP language which allows users to define queries over video streams, and receive fast, accurate results.  ...  To evaluate CEP queries on videos in real-time and with high accuracy, we explain how a streaming query engine can be designed to provide native support of machine learning (ML) models for fast and accurate  ...  And many thanks to Marios Fragkoulis, Christos Koutras, Agathe Balayn, Andra Ionescu and Georgios Siachamis for their valuable feedback on this work.  ... 
dblp:conf/vldb/Li20 fatcat:5afudsgmhnfx7ammpksizxirji

A Selectivity based approach to Continuous Pattern Detection in Streaming Graphs [article]

Sutanay Choudhury, Lawrence Holder, George Chin, Khushbu Agarwal, John Feo
2015 arXiv   pre-print
Detecting adversarial activities, prevention of theft of intellectual properties and customer data is a high priority for corporations and government agencies around the world.  ...  Our experiments performed on real online news, network traffic stream and a synthetic social network benchmark demonstrate 10-100x speedups over selectivity agnostic approaches.  ...  We want to register a pattern as a graph query and continuously perform the query on the data graph as it evolves over time.  ... 
arXiv:1503.00849v1 fatcat:jnxrrtdxuvh7jct6n3b34m4z3m
« Previous Showing results 1 — 15 out of 105,342 results