Filters








8,657 Hits in 6.1 sec

Discovering Queues from Event Logs with Varying Levels of Information [chapter]

Arik Senderovich, Sander J. J. Leemans, Shahar Harel, Avigdor Gal, Avishai Mandelbaum, Wil M. P. van der Aalst
2016 Lecture Notes in Business Information Processing  
In particular, we investigate the impact of available information in an event log on the ability to accurately discover queue lengths, i.e. the number of cases waiting for an activity.  ...  A thorough analysis of the empirical results provides insights into the influence of information levels in the log on the accuracy of the measurements.  ...  Specifically, queue lengths were quantified for event logs with varying levels of information.  ... 
doi:10.1007/978-3-319-42887-1_13 fatcat:ozd7gelovbggtbgdtkab2xog2a

Mining Resource Scheduling Protocols [chapter]

Arik Senderovich, Matthias Weidlich, Avigdor Gal, Avishai Mandelbaum
2014 Lecture Notes in Computer Science  
We propose two types of mining techniques: advanced classification methods from data mining that include queueing information in their explanatory features and, heuristics that originate in queueing theory  ...  This work focuses on automatically learning resource decisions from events.  ...  Mining Queueing Information from Service Logs To mine allocation decisions that are associated with queueing information, we extract information on queue lengths and longest waiting time from a customer  ... 
doi:10.1007/978-3-319-10172-9_13 fatcat:7onzauvvtfdinap7er3co5mniy

Business Process Performance Mining with Staged Process Flows [chapter]

Hoang Nguyen, Marlon Dumas, Arthur H. M. ter Hofstede, Marcello La Rosa, Fabrizio Maria Maggi
2016 Lecture Notes in Computer Science  
The paper demonstrates the advantages of the SPF approach over state-of-the-art process performance mining tools using a real-life event log of a Dutch bank.  ...  An SPF abstracts a business process as a series of queues corresponding to stages.  ...  NICTA is funded by the Australian Government via the Department of Communications.  ... 
doi:10.1007/978-3-319-39696-5_11 fatcat:iq2e2ck64bgylcd42wnk3k7ohy

Generating Event Logs with Workload-Dependent Speeds from Simulation Models [chapter]

Joyce Nakatumba, Michael Westergaard, Wil M. P. van der Aalst
2012 Lecture Notes in Business Information Processing  
This paper shows how workload-dependent processing speeds can be incorporated in a simulation model and learned from event logs.  ...  We also show how event logs with workload-dependent behavior can be generated through simulation. Experiments show that it is crucial to incorporate such phenomena.  ...  from event logs.  ... 
doi:10.1007/978-3-642-31069-0_31 fatcat:sld2mvt2bjdnhnsetkyv6e7k5a

Improving the Management of an Emergency Call Service by Combining Process Mining and Discrete Event Simulation Approaches [chapter]

Elyes Lamine, Franck Fontanili, Maria Di Mascolo, Hervé Pingaud
2015 IFIP Advances in Information and Communication Technology  
Indeed, the effectiveness of the response to these incoming calls strongly impacts the quality of service of these centres, which is the main information which the government relies for their funding.  ...  Secondly, we will use a Discrete Event Simulation approach as an effective tool to assess the efficiency of the current management of this emergency call centre and to ask (and answer) some 'what if?'  ...  In this section, we present the "As-is" simulation model built with the information discovered from the process mining tool.  ... 
doi:10.1007/978-3-319-24141-8_50 fatcat:ft2wfnibfbdwpkqc2lmqgctaai

Congestion Graphs for Automated Time Predictions

Arik Senderovich, J. Christopher Beck, Avigdor Gal, Matthias Weidlich
2019 PROCEEDINGS OF THE THIRTIETH AAAI CONFERENCE ON ARTIFICIAL INTELLIGENCE AND THE TWENTY-EIGHTH INNOVATIVE APPLICATIONS OF ARTIFICIAL INTELLIGENCE CONFERENCE  
We show how congestion graphs are mined from raw event data using queueing theory based assumptions on the information contained in these logs.  ...  In order to automatically extract such features from data without prior process knowledge, we propose the model of congestion graphs, which are grounded in queueing theory.  ...  These dynamic graphs represent the flow of entities in terms of events and are labeled with performance information that is extracted from the event log.  ... 
doi:10.1609/aaai.v33i01.33014854 fatcat:3anbga6aivachkiaaklpahpc54

Visualizing Token Flows Using Interactive Performance Spectra [chapter]

Wil M. P. van der Aalst, Daniel Tacke Genannt Unterberg, Vadim Denisov, Dirk Fahland
2020 Lecture Notes in Computer Science  
Process mining techniques can be used to discover process models from event data and project performance and conformance related diagnostics on such models.  ...  Our ProM implementation supports a range of visual-analytics features allowing the user to interact with the underlying event data and Petri net.  ...  Figure 1 already showed a screenshot analyzing a Petri net discovered from an event log with information about 39.022 orders and 7 activities (210.459 events in total).  ... 
doi:10.1007/978-3-030-51831-8_18 fatcat:47h6rg5qp5fdnemgsn6a3xnd7m

Job-Site Level Fault Tolerance for Cluster and Grid environments

Kshitij Limaye, Box Leangsuksun, Zeno Greenwood, Stephen L. Scott, Christian Engelmann, Richard Libby, Kasidit Chanchio
2005 Proceedings IEEE International Conference on Cluster Computing  
There is a need for complementing these approaches by proactively handling failures at a job-site level, ensuring the system high availability with no loss of user submitted jobs.  ...  , and in critical system events.  ...  The number of jobs added was varied from 50 to 500 jobs. The job queue monitor and backup updater were invoked with one a minute interval between successive invocations.  ... 
doi:10.1109/clustr.2005.347043 dblp:conf/cluster/LimayeLGSELC05 fatcat:gnefnaeno5bhxly53rxcu5k4sm

Discovery, visualization and performance analysis of enterprise workflow

Ping Zhang, Nicoleta Serban
2007 Computational Statistics & Data Analysis  
Among other things, we find that service time fits the profile of a log-mixture distribution.  ...  We also carried out a detailed performance analysis based on the discovered workflow using data from a remote technical support center.  ...  In other words, we try to discover and reconstruct the underlying workflow by analyzing the event sequence data recorded in the system log files.  ... 
doi:10.1016/j.csda.2006.01.008 fatcat:g3b4f5psezgwjmoicwlia3bkzq

A flexible object-oriented design of an event-driven wireless network simulator

I. Jawhar
2009 2009 Wireless Telecommunications Symposium  
The different classes that constitute the simulator application along with the main methods, and relationships are presented.  ...  This paper presents an object-oriented framework to design an event-driven network simulator that can be used to evaluate different wireless networking architectures and protocols.  ...  All of the indicated activities are done by insertion and extraction of the corresponding events into and from the event priority queue.  ... 
doi:10.1109/wts.2009.5068942 dblp:conf/wts/Jawhar09 fatcat:lsydt55myzfendfgedge2lmgq4

Automatic performance modeling of multithreaded programs

Alexander Tarvo
2014 Companion Proceedings of the 36th International Conference on Software Engineering - ICSE Companion 2014  
The extracted information is translated into the discrete event model of the program, which is simulated using the OMNET [1] framework.  ...  We employ a combination of a static and dynamic analyses to extract information about structure and semantics of the program.  ...  Execution times ΠCP U for computation CFs are obtained from timestamps. Parameters Π disk of I/O CFs are obtained from the BTrace log of low-level I/O operations performed by the program.  ... 
doi:10.1145/2591062.2591196 dblp:conf/icse/Tarvo14 fatcat:qwqu7ptwnzexxlnusxhdlbv5my

Monitoring data dependencies in concurrent process execution through delta-enabled grid services

Susan D. Urban, Yang Xiao, Luther Blake, Suzanne W. Dietrich
2009 International Journal of Web and Grid Services  
The design and construction of Delta-Enabled Grid Services is presented, along with storage and indexing techniques for merging deltas from multiple DEGS to create a global schedule of data changes that  ...  Delta-Enabled Grid Services (DEGS) are a foundational aspect of the DeltaGrid environment, extending Grid Services with the capability of recording incremental data changes, known as deltas.  ...  Events can also remain on the queue for explicit dequeue by an external application. Streams monitors the database redo logs and captures changes according to rules defined by the user.  ... 
doi:10.1504/ijwgs.2009.023870 fatcat:uwm5ksrnozebzpohzr3j2ygzey

Indoor Positioning Systems Can Revolutionise Digital Lean

Tuan-Anh Tran, Tamás Ruppert, János Abonyi
2021 Applied Sciences  
This paper examines how the information provided by indoor positioning systems (IPS) can be utilised in the digital transformation of flexible manufacturing.  ...  The proposed IPS-based method enriches the information sources of value stream mapping and transforms positional data into key-performance indicators used in Lean Manufacturing.  ...  Informed Consent Statement: Not applicable. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/app11115291 fatcat:grkzx5jit5bu5lxxgkznqwtjy4

Behavior Monitoring in Self-Healing Service-Oriented Systems [chapter]

Harald Psaier, Florian Skopik, Daniel Schall, Schahram Dustdar
2011 Socially Enhanced Services Computing  
Such applications are difficult to manage due to changing interaction patterns, behavior, and faults resulting from varying conditions in the environment.  ...  The presented work extends the notion of self-healing by considering a mixture of human and service interactions observing their behavior patterns.  ...  ACKNOWLEDGMENT The research leading to these results has received funding from the European Community Seventh Framework Programme FP7/2007-2013 under grant agreement 215483 (SCube) and 216256 (COIN).  ... 
doi:10.1007/978-3-7091-0813-0_5 fatcat:g3q7s3jwa5g5rotx3rorol2dwu

Behavior Monitoring in Self-Healing Service-Oriented Systems

Harald Psaier, Florian Skopik, Daniel Schall, Schahram Dustdar
2010 2010 IEEE 34th Annual Computer Software and Applications Conference  
Such applications are difficult to manage due to changing interaction patterns, behavior, and faults resulting from varying conditions in the environment.  ...  The presented work extends the notion of self-healing by considering a mixture of human and service interactions observing their behavior patterns.  ...  ACKNOWLEDGMENT The research leading to these results has received funding from the European Community Seventh Framework Programme FP7/2007-2013 under grant agreement 215483 (SCube) and 216256 (COIN).  ... 
doi:10.1109/compsac.2010.43 dblp:conf/compsac/PsaierSSD10 fatcat:24mwjoq25rckfl2klefvjchbum
« Previous Showing results 1 — 15 out of 8,657 results