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Processing nested complex sequence pattern queries over event streams

Mo Liu, Medhabi Ray, Elke A. Rundensteiner, Daniel J. Dougherty, Chetan Gupta, Song Wang, Ismail Ari, Abhay Mehta
2010 Proceedings of the Seventh International Workshop on Data Management for Sensor Networks - DMSN '10  
These monitoring applications submit complex event queries to track sequences of events that match a given pattern.  ...  As these systems mature the need for increasingly complex nested sequence queries arises, while the state-of-the-art CEP systems mostly focus on the execution of flat sequence queries only.  ...  The Nested Complex Pattern Query Language NEEL We now briefly introduce the NEEL query language for specifying complex nested event pattern queries [1, 6, 9] as an extension of basic non-nested languages  ... 
doi:10.1145/1858158.1858164 dblp:conf/dmsn/LiuRRDGWAM10 fatcat:hjx5blrgurbn3fnelqp2ycubte

Realtime healthcare services via nested complex event processing technology

Mo Liu, Medhabi Ray, Dazhi Zhang, Elke A. Rundensteiner, Daniel J. Dougherty, Chetan Gupta, Song Wang, Ismail Ari
2012 Proceedings of the 15th International Conference on Extending Database Technology - EDBT '12  
Complex Event Processing (CEP) over event streams has become increasingly important for real-time applications ranging from healthcare to supply chain management.  ...  In this demonstration, we propose to showcase these techniques for processing and optimizing nested pattern queries on streams.  ...  CEP must be able to support sophisticated pattern matching on real-time event streams including the arbitrary nesting of sequence (SEQ), AND, OR operators and the flexible use of negation (!)  ... 
doi:10.1145/2247596.2247681 dblp:conf/edbt/LiuRZRDGWA12 fatcat:35p76myl7fabtkqxodfhv4d3be

NEEL: The Nested Complex Event Language for Real-Time Event Analytics [chapter]

Mo Liu, Elke A. Rundensteiner, Dan Dougherty, Chetan Gupta, Song Wang, Ismail Ari, Abhay Mehta
2011 Lecture Notes in Business Information Processing  
These monitoring applications submit complex event queries to track sequences of events that match a given pattern.  ...  Complex event processing (CEP) over event streams has become increasingly important for real-time applications ranging from health care, supply chain management to business intelligence.  ...  NEEL: The Nested Complex Event Query Language We now introduce the NEEL 1 query language for specifying complex event pattern queries.  ... 
doi:10.1007/978-3-642-22970-1_9 fatcat:6ksnbn3vwfdw7fuuuyvg2rzusy

High-performance nested CEP query processing over event streams

Mo Liu, Elke Rundensteiner, Dan Dougherty, Chetan Gupta, Song Wang, Ismail Ari, Abhay Mehta
2011 2011 IEEE 27th International Conference on Data Engineering  
These monitoring applications submit complex queries to track sequences of events that match a given pattern.  ...  Ahstract-Complex event processing (CEP) over event streams has become increasingly important for real-time applications ranging from health care, supply chain management to busi ness intelligence.  ...  NEEL: The Nested Complex Event Language We now briefly introduce the NEEL I query language [14] for specifying nested complex event pattern queries.  ... 
doi:10.1109/icde.2011.5767839 dblp:conf/icde/LiuRDGWAM11 fatcat:2k4l6fiunvhk7axsucilve4q6y

Towards Enriching CQELS with Complex Event Processing and Path Navigation

Minh Dao-Tran, Danh Le Phuoc
2015 Deutsche Jahrestagung für Künstliche Intelligenz  
However, it currently does not support two important features, namely Complex Event Processing and RDFS reasoning.  ...  The increasing popularity of RDF Stream Processing has led to the developments of several RSP engines.  ...  An extended graph pattern P is a set of extended triple patterns. Complex Event Processing Complex Event Processing [14] emerged from publish-subscribe systems [19] .  ... 
dblp:conf/ki/Dao-TranP15 fatcat:iys5y6qbpzhzxkrigjyu2v66jq

Optimizing complex sequence pattern extraction using caching

Medhabi Ray, Mo Liu, Elke Rundensteiner, Daniel J. Dougherty, Chetan Gupta, Song Wang, Abhay Mehta, Ismail Ari
2011 2011 IEEE 27th International Conference on Data Engineering Workshops  
These monitoring applications submit complex event queries to track sequences of events that match a given pattern.  ...  Complex Event Processing (CEP) has become increasingly important for tracking and monitoring complex event anomalies and trends in event streams emitted from business processes such as supply chain management  ...  NESTED CEP QUERY PROCESSING A. The Nested Complex Pattern Query Language NEEL B.  ... 
doi:10.1109/icdew.2011.5767641 dblp:conf/icde/RayLRDGWMA11 fatcat:4qq3x53mtbaszlemietw2bhks4

GRETA

Olga Poppe, Chuan Lei, Elke A. Rundensteiner, David Maier
2017 Proceedings of the VLDB Endowment  
Streaming applications from algorithmic trading to tra c management deploy Kleene patterns to detect and aggregate arbitrarily-long event sequences, called event trends.  ...  State-of-the-art systems process such queries in two steps. Namely, they first construct all trends and then aggregate them.  ...  RELATED WORK Complex Event Processing. CEP approaches like SASE [6, 32] , Cayuga [9] , ZStream [22] , and E-Cube [19] support aggregation computation over event streams.  ... 
doi:10.14778/3151113.3151120 fatcat:pi7ovb4skzhj3diyeazi2jbs3m

State-based Event Detection Optimization for Complex Event Processing

Shanglian PENG, Haoxia LIU, Xiaolin GUO, Jia HE
2014 Sensors & Transducers  
To assure real-time responsive complex pattern detection over high volume and speed event streams, efficient event detection techniques have to be designed.  ...  Detection of patterns in high speed, large volume of event streams has been an important paradigm in many application areas of Complex Event Processing (CEP) including security monitoring, financial markets  ...  In this paper, we aim to exploit scalable processing methods of CEP queries over event streams (such as RFID event streams, sensor streams).  ... 
doaj:886baa83d08a4eeb8685118eb2f3c9da fatcat:2732zup42vesfe6cyhhxgawtvq

Exploiting Sharing Opportunities for Real-time Complex Event Analytics

Elke A. Rundensteiner, Olga Poppe, Chuan Lei, Medhabi Ray, Lei Cao, Yingmei Qi, Mo Liu, Di Wang
2015 IEEE Data Engineering Bulletin  
Complex event analytics systems continuously evaluate massive workloads of pattern queries on high volume event streams to detect and extract complex events of interest to the application.  ...  Achieving near real-time system responsiveness when processing these workloads composed of complex event pattern queries is their main challenge.  ...  Ellison for his leadership of installation of our event analytics system in the intensive care units at UMASS Memorial Hospital.  ... 
dblp:journals/debu/RundensteinerPL15 fatcat:tx3quuk6qrfq7fr4ivlge2r5my

GRETA: Graph-based Real-time Event Trend Aggregation [article]

Olga Poppe, Chuan Lei, Elke A. Rundensteiner, David Maier
2020 arXiv   pre-print
Streaming applications from algorithmic trading to traffic management deploy Kleene patterns to detect and aggregate arbitrarily-long event sequences, called event trends.  ...  State-of-the-art systems process such queries in two steps. Namely, they first construct all trends and then aggregate them.  ...  Related Work Complex Event Processing. CEP approaches like SASE [6, 31] , Cayuga [9] , ZStream [22] , and E-Cube [19] support aggregation computation over event streams.  ... 
arXiv:2010.02988v1 fatcat:56aevkiiabdnro34nqqw2puuey

Event Processing in RDF

Mikko Rinne, Eva Blomqvist, Robin Keskisärkkä, Esko Nuutila
2013 International Semantic Web Conference  
In this study we look at new requirements for event models based on concepts defined for complex event processing.  ...  SPARQL querying of event objects is also considered, to demonstrate how event objects based on the model can be recognized and processed in a straightforward way with SPARQL 1.1 Query-compliant tools.  ...  , the notion of complex events as abstractions over simple events.  ... 
dblp:conf/semweb/RinneBKN13 fatcat:v7dpgzzqcffsteh2oydryqzlxi

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.  ...  A strong interest is emerging in SQL extensions for sequence patterns using Kleene-closure expressions.  ...  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

Active complex event processing

Di Wang, Elke A. Rundensteiner, Han Wang, Richard T. Ellison
2010 Proceedings of the VLDB Endowment  
Our analysis of many real-world event based applications has revealed that existing Complex Event Processing technology (CEP), while effective for efficient pattern matching on event stream, is limited  ...  We are the first to tackle this problem by providing active rule support embedded directly within the CEP engine, henceforth called Active Complex Event Processing technology, or short, Active CEP.  ...  Complex Event Processor supports long-running pattern matching queries with negation, nested query and spatiotemporal features over event streams [4] .  ... 
doi:10.14778/1920841.1921034 fatcat:7opqsjapinaplkxcukqfskstui

Extending XQuery with a Pattern Matching Facility [chapter]

Peter M. Fischer, Aayush Garg, Kyumars Sheykh Esmaili
2010 Lecture Notes in Computer Science  
In this regard, a pattern matching facility can be considered as a natural extension to empower XQuery. In this paper we first provide some use cases for XML pattern matching.  ...  We also implemented our proposal into the MXQuery prototype and show through experiments that, compared to the existing pattern matching means, our extension is not only more expressive, but also more  ...  Cayuga [5] presents a query language based on Cayuga Algebra for naturally expressing complex event patterns. This query language uses many SQL-like constructs.  ... 
doi:10.1007/978-3-642-15684-7_5 fatcat:72wbwuqqb5a5xc5spvh2acyvye

Siddhi

Sriskandarajah Suhothayan, Kasun Gajasinghe, Isuru Loku Narangoda, Subash Chaturanga, Srinath Perera, Vishaka Nanayakkara
2011 Proceedings of the 2011 ACM workshop on Gateway computing environments - GCE '11  
Processing of high volume of events to derive higher-level information is a vital part of taking critical decisions, and Complex Event Processing (CEP) has become one of the most rapidly emerging fields  ...  This paper discusses different design decisions associated with CEP Engines, and proposes to improve CEP performance by using more stream processing style pipelines.  ...  We are exploring the possibilities of automatically breaking down queries and processing them using a pipeline.  ... 
doi:10.1145/2110486.2110493 dblp:conf/sc/SuhothayanGNCPN11 fatcat:5f3advzjqfflvotcwdhbsrcu5y
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