@inproceedings{zeyen_conversational_2017,
	series = {Lecture {Notes} in {Artificial} {Intelligence}},
	title = {Conversational {Process}-{Oriented} {Case}-{Based} {Reasoning}},
	booktitle = {Case-{Based} {Reasoning} {Research} and {Development} - 25th {International} {Conference}, {ICCBR} 2017, {Trondheim}, {Norway}. {Proceedings}},
	publisher = {Springer, accepted for publication},
	author = {Zeyen, Christian and Müller, Gilbert and Bergmann, Ralph},
	year = {2017}
}

@incollection{bergmann_similarity-based_2017,
	title = {Similarity-based {Retrieval} and {Automatic} {Adaptation} of {Semantic} {Workflows}},
	booktitle = {Knowledge {Engineering} and {Software} {Engineering} (working title)},
	publisher = {Springer, forthcomming},
	author = {Bergmann, Ralph and Müller, Gilbert},
	editor = {Nalepa, Grzegorz J. and Baumeister, Joachim},
	year = {2017}
}

@inproceedings{muller_case_2016,
	series = {Lecture {Notes} in {Artificial} {Intelligence}},
	title = {Case {Completion} of {Workflows} for {Process}-{Oriented} {Case}-{Based} {Reasoning}},
	volume = {9969},
	url = {http://www.wi2.uni-trier.de/publications/2016_MuellerBergmann_ICCBR.pdf},
	abstract = {Cases available in real world domains are often incomplete and sometimes
lack important information. Using incomplete cases in a CBR system can
be harmful, as the lack of information can result in inappropriate similarity computations
or incompletely generated adaptation knowledge. Case completion aims
to overcome this issue by inferring missing information. This paper presents
a novel approach to case completion for process-oriented case-based reasoning
(POCBR). In particular, we address the completion of workflow cases by
adding missing or incomplete dataflow information. Therefore, we combine automatically
learned domain specific completion operators with generic domainindependent
default rules. The empirical evaluation demonstrates that the presented
completion approach is capable of deriving complete workflows with high
quality and a high degree of completeness.},
	booktitle = {Case-{Based} {Reasoning} {Research} and {Development} - 24nd {International} {Conference}, {ICCBR} 2016, {Atlanta}, {USA}. {Proceedings}},
	publisher = {Springer},
	author = {Müller, Gilbert and Bergmann, Ralph},
	editor = {Goel, A. and Diaz-Agudo, B. and Roth-Berghofer, Thomas},
	year = {2016},
	note = {The original publication is available at www.springerlink.com},
	pages = {295--310}
}

Cases available in real world domains are often incomplete and sometimes lack important information. Using incomplete cases in a CBR system can be harmful, as the lack of information can result in inappropriate similarity computations or incompletely generated adaptation knowledge. Case completion aims to overcome this issue by inferring missing information. This paper presents a novel approach to case completion for process-oriented case-based reasoning (POCBR). In particular, we address the completion of workflow cases by adding missing or incomplete dataflow information. Therefore, we combine automatically learned domain specific completion operators with generic domainindependent default rules. The empirical evaluation demonstrates that the presented completion approach is capable of deriving complete workflows with high quality and a high degree of completeness.

@inproceedings{bergmann_retrieving_2016,
	address = {Key Largo, Florida, USA},
	title = {Retrieving {Adaptable} {Cases} in {Process}-{Oriented} {Case}-{Based} {Reasoning}},
	url = {http://www.wi2.uni-trier.de/publications/2016_Bergmann_Flairs.pdf},
	abstract = {This paper presents a novel approach to retrieval in
process-oriented case-based reasoning (POCBR) which
considers the adaptability of workflows cases during
the retrieval phase. A novel concept of adaptability in
POCBR is proposed, which assesses the potential similarity
increase of a case which can be gained by adaptation.
The adaptability of a case is learned from the case
base in an off-line pre-processing phase prior to the retrieval.
The proposed approach is generic as it can be
used in combination with different adaptation methods.
An empirical evaluation in the domain of cooking workflows
demonstrates the benefit of the approach.},
	booktitle = {Proceedings of the {Twenty}-{Ninth} {International} {Florida} {Artificial} {Intelligence} {Research} {Society} {Conference}},
	publisher = {AAAI Press},
	author = {Bergmann, Ralph and Müller, Gilbert and Zeyen, Christian and Manderscheid, Jens},
	editor = {Markov, Zdravko and Russel, Ingrid},
	year = {2016},
	pages = {419--424}
}

This paper presents a novel approach to retrieval in process-oriented case-based reasoning (POCBR) which considers the adaptability of workflows cases during the retrieval phase. A novel concept of adaptability in POCBR is proposed, which assesses the potential similarity increase of a case which can be gained by adaptation. The adaptability of a case is learned from the case base in an off-line pre-processing phase prior to the retrieval. The proposed approach is generic as it can be used in combination with different adaptation methods. An empirical evaluation in the domain of cooking workflows demonstrates the benefit of the approach.

@techreport{bergmann_ever_2016,
	title = {{EVER} - {Extraction} and {Processing} of {Procedural} {Experience} {Knowledge} in {Workflows}},
	institution = {Universität Trier, Lehrstuhl für Wirtschaftsinformatik II},
	author = {Bergmann, Ralph and Minor, Mirjam and Müller, Gilbert and Schumacher, Pol},
	year = {2016},
	pages = {1--9}
}

@inproceedings{muller_generalization_2015,
	address = {Hollywood (Florida), USA},
	title = {Generalization of {Workflows} in {Process}-{Oriented} {Case}-{Based} {Reasoning}},
	url = {http://www.wi2.uni-trier.de/publications/2015_MuellerBergmannFLAIRS.pdf},
	booktitle = {28th {International} {FLAIRS} {Conference}},
	publisher = {AAAI Press},
	author = {Müller, Gilbert and Bergmann, Ralph and Russel, Ingrid and Eberle, William},
	year = {2015},
	pages = {391--396}
}

@inproceedings{muller_poql:_2015,
	address = {Trier},
	series = {{CEUR} {Workshop} {Proceedings}},
	title = {{POQL}: {A} {New} {Query} {Language} for {Process}-{Oriented} {Case}-{Based} {Reasoning}},
	volume = {1458},
	url = {http://www.wi2.uni-trier.de/publications/2015_MuellerBergmannLWA.pdf},
	booktitle = {Proceedings of the {LWA} 2015 {Workshops}: {KDML}, {FGWM}, {IR}, and {FGDB}},
	author = {Müller, Gilbert and Bergmann, Ralph},
	editor = {Bergmann, Ralph and Görg, Sebastian and Müller, Gilbert},
	year = {2015},
	pages = {247--255}
}

@inproceedings{muller_learning_2015,
	series = {Lecture {Notes} in {Artificial} {Intelligence}},
	title = {Learning and {Applying} {Adaptation} {Operators} in {Process}-{Oriented} {Case}-{Based} {Reasoning}},
	volume = {9343},
	url = {http://www.wi2.uni-trier.de/publications/2015_MuellerBergmannICCBR.pdf},
	booktitle = {Case-{Based} {Reasoning} {Research} and {Development} - 23nd {International} {Conference}, {ICCBR} 2015, {Frankfurt}, {Germany}, {September} 28, 2015 - {September} 30, 2015. {Proceedings}},
	publisher = {Spinger},
	author = {Müller, Gilbert and Bergmann, Ralph},
	editor = {Hüllermeier, Eyke and Minor, Mirjam},
	year = {2015},
	pages = {259--274}
}

@inproceedings{muller_cookingcake:_2015,
	address = {Springer},
	title = {{CookingCAKE}: {A} {Framework} for the adaptation of cooking recipes represented as workflows},
	url = {http://www.wi2.uni-trier.de/publications/2015_MuellerBergmannCCC.pdf},
	booktitle = {Computer {Cooking} {Contest}, {Workshop} {Proceedings} {ICCBR} 2015},
	author = {Müller, Gilbert and Bergmann, Ralph},
	year = {2015},
	note = {The original publication is available at www.springerlink.com}
}

@inproceedings{muller_workflow_2014,
	series = {Lecture {Notes} in {Artificial} {Intelligence}},
	title = {Workflow {Streams}: {A} {Means} for {Compositional} {Adaptation} in {Process}-{Oriented} {CBR}},
	volume = {8765},
	url = {http://www.wi2.uni-trier.de/publications/2014_MuellerBergmannICCBR.pdf},
	booktitle = {Case-{Based} {Reasoning} {Research} and {Development} - 22nd {International} {Conference}, {ICCBR} 2014, {Cork}, {Ireland}, {September} 29, 2014 - {October} 1, 2014. {Proceedings}},
	publisher = {Springer},
	author = {Müller, Gilbert and Bergmann, Ralph},
	editor = {Lamontagne, Luc and Plaza, Enric},
	year = {2014},
	note = {Best phd student paper award. The original publication is available at www.springerlink.com},
	pages = {315--329}
}

@article{bergmann_similarity_2014,
	series = {Elsevier},
	title = {Similarity {Assessment} and {Efficient} {Retrieval} of {Semantic} {Workfows}},
	volume = {40},
	url = {http://www.wi2.uni-trier.de/publications/2012_BergmannGilISJ.pdf},
	doi = {10.1016/j.is.2012.07.005},
	journal = {Information Systems},
	author = {Bergmann, Ralph and Gil, Yolanda},
	year = {2014},
	note = {Only preprint of this article available for download},
	pages = {115--127}
}

@inproceedings{muller_compositional_2014,
	address = {Springer},
	title = {Compositional {Adaptation} of {Cooking} {Recipes} using {Workflow} {Streams}},
	url = {http://www.wi2.uni-trier.de/publications/2014_MuellerBergmannCCC.pdf},
	booktitle = {Computer {Cooking} {Contest}, {Workshop} {Proceedings} {ICCBR} 2014},
	author = {Müller, Gilbert and Bergmann, Ralph},
	year = {2014},
	note = {The original publication is available at www.springerlink.com}
}

@inproceedings{muller_cluster-based_2014,
	address = {IOS Press},
	title = {A {Cluster}-{Based} {Approach} to {Improve} {Similarity}-{Based} {Retrieval} for {Process}-{Oriented} {Case}-{Based} {Reasoning}},
	url = {http://www.wi2.uni-trier.de/publications/2014_MuellerBergmannECAI.pdf},
	booktitle = {20th {European} {Conference} on {Artificial} {Intelligence} ({ECAI} 2014)},
	author = {Müller, Gilbert and Bergmann, Ralph},
	editor = {Schaub, Torsten and Friedrich, Gerhard and O'Sullivan, Barry},
	year = {2014},
	note = {Preprint of this article available for download.},
	pages = {639--644}
}

@article{minor_case-based_2014,
	series = {Elsevier},
	title = {Case-based adaptation of workflows},
	volume = {40},
	url = {http://www.sciencedirect.com/science/article/pii/S0306437912001536},
	doi = {10.1016/j.is.2012.11.011},
	journal = {Information Systems},
	author = {Minor, Mirjam and Bergmann, Ralph and Görg, Sebastian},
	year = {2014},
	pages = {142--152}
}

@inproceedings{bergmann_mac/fac_2013,
	title = {{MAC}/{FAC} {Retrieval} of {Semantic} {Workflows}},
	url = {http://www.wi2.uni-trier.de/publications/2013_FLAIRS_BergmannStromer.pdf},
	booktitle = {Proceedings of the {Twenty}-{Sixth} {International} {Florida} {Artificial} {Intelligence} {Research} {Society} {Conference}, {St}. {Pete} {Beach}, {May} 22-25, 2013.},
	publisher = {AAAI Press},
	author = {Bergmann, Ralph and Stromer, Alexander},
	editor = {Boonthum-Denecke, C. and Youngblood, G. Michael},
	year = {2013},
	pages = {357 -- 362}
}

@inproceedings{bergmann_workflow_2013,
	series = {Lecture {Notes} in {Artificial} {Intelligence}},
	title = {Workflow {Clustering} {Using} {Semantic} {Similarity} {Measures}},
	volume = {8077},
	url = {http://www.wi2.uni-trier.de/publications/2013_BergmannMuellerWittkowskyKI.pdf},
	booktitle = {{KI} 2013: {Advances} in {Artificial} {Intelligence}},
	publisher = {Springer},
	author = {Bergmann, Ralph and Müller, Gilbert and Wittkowsky, Daniel},
	editor = {Timm, Ingo and Thimm, Matthias},
	year = {2013},
	note = {The original publication is available at www.springerlink.com}
}

@inproceedings{bergmann_ralph_scaling_2012,
	address = {Lyon},
	title = {Scaling similarity-based retrieval of semantic workflows},
	url = {http://www.wi2.uni-trier.de/publications/2012_ICCBR_POCBR_Bergmann_etal.pdf},
	booktitle = {{ICCBR}-{Workshop} on {Process}-oriented {Case}-{Based} {Reasoning}},
	author = {{Bergmann, Ralph} and {Minor, Mirjam} and {Islam, Siblee} and {Schumacher, Pol} and {Stromer, Alexander}},
	editor = {{Lamontagne, Luc} and {Recio-Garcia, Juan A.}},
	year = {2012},
	pages = {15--24}
}

@inproceedings{minor_confidence_2012,
	series = {Lecture {Notes} in {Computer} {Science}},
	title = {Confidence in {Workflow} {Adaptation}},
	url = {http://www.wi2.uni-trier.de/publications/2012_ICCBR_Minor_springer.pdf},
	booktitle = {Case-{Based} {Reasoning}. {Research} and {Development}, 20th {International} {Conference} on {Case}-{Based} {Reasoning}, {ICCBR} 2012},
	publisher = {Springer},
	author = {Minor, Mirjam and Islam, Siblee and Schumacher, Pol},
	year = {2012},
	note = {The original publication is available at www.springerlink.com},
	keywords = {Adaptation, CBR}
}

@inproceedings{schumacher_extraction_2012,
	address = {Lyon, France},
	title = {Extraction of {Procedural} {Knowledge} from the {Web}},
	url = {http://www.wi2.uni-trier.de/publications/2012_WWW_SchumacherEtal.pdf},
	booktitle = {Proceedings of the 21st {World} {Wide} {Web} {Conference}, {WWW} 2012, {Lyon}, {France}, {April} 16-20, 2012 ({Companion} {Volume})},
	publisher = {ACM},
	author = {Schumacher, Pol and Minor, Mirjam and Walter, Kirstin and Bergmann, Ralph},
	editor = {Mille, Alain and Gandon, Fabien L. and Misselis, Jacques and Rabinovich, Michael and Staab, Steffen},
	year = {2012},
	file = {wk2fp3-schumacher.pdf:C\:\\Users\\bergmann\\AppData\\Roaming\\Mozilla\\Firefox\\Profiles\\bhm1kggw.default\\zotero\\storage\\HKDMQUMQ\\wk2fp3-schumacher.pdf:application/pdf}
}

@inproceedings{minor_reasoning_2011,
	title = {Reasoning on {Business} {Processes} to {Support} {Change} {Reuse}},
	isbn = {978-1-4577-1542-6},
	url = {http://www.wi2.uni-trier.de/publications/2011_CEC11_Minor_etal},
	booktitle = {13th {IEEE} {Conference} on {Commerce} and {Enterprise} {Computing}, {CEC} 2011, {Luxembourg}-{Kirchberg}, {Luxembourg}, {September} 5-7, 2011},
	publisher = {IEEE Computer Society},
	author = {Minor, Mirjam and Bergmann, Ralph and Görg, Sebastian and Walter, Kirstin},
	editor = {Hofreiter, Birgit and Dubois, Eric and Lin, Kwei-Jay and Setzer, Thomas and Godart, Claude and Proper, Erik and Bodenstaff, Lianne},
	year = {2011},
	pages = {18--25},
	file = {submissionMinorCEC11.pdf:C\:\\Users\\bergmann\\AppData\\Roaming\\Mozilla\\Firefox\\Profiles\\bhm1kggw.default\\zotero\\storage\\QZGFDTW8\\submissionMinorCEC11.pdf:application/pdf}
}

@inproceedings{walter_workflow_2011,
	title = {Workflow {Extraction} from {Cooking} {Recipes}},
	url = {http://www.wi2.uni-trier.de/publications/2011_CCC_WalterEtal.pdf},
	booktitle = {Proceedings of the {ICCBR} 2011 {Workshops}},
	author = {Walter, Kirstin and Minor, Mirjam and Bergmann, Ralph},
	editor = {Diaz-Agudo, Belen and Cordier, Amelie},
	year = {2011},
	pages = {207--216},
	file = {2011_CCC_WalterEtal.pdf:C\:\\Users\\bergmann\\AppData\\Roaming\\Mozilla\\Firefox\\Profiles\\bhm1kggw.default\\zotero\\storage\\QIT2E3QS\\2011_CCC_WalterEtal.pdf:application/pdf}
}

@inproceedings{minor_acquiring_2011,
	series = {Lecture {Notes} in {Computer} {Science}},
	title = {Acquiring {Adaptation} {Cases} for {Scientific} {Workflows}},
	volume = {6880},
	url = {http://www.wi2.uni-trier.de/publications/2011_ICCBR_MinorGoerg.pdf},
	booktitle = {Case-{Based} {Reasoning}. {Research} and {Development}, 19th {International} {Conference} on {Case}-{Based} {Reasoning}, {ICCBR} 2011},
	publisher = {Springer},
	author = {Minor, Mirjam and Görg, Sebastian},
	year = {2011},
	note = {The original publication is available at www.springerlink.com},
	pages = {166--180}
}