The application of ubiquitous and social computational systems shows a rapidly increasing trend in our everyday environments: Enhancing social interactions and communication in both online and real-world settings is an important issue in a broad range of application contexts. This chapter describes the development of ubiquitous and social software for enhancing social networking. The Connect-U demonstrator features a class of such applications. In particular, it comprises the Conferator and MyGroup applications for enabling smarter social interactions in the context of conferences and working groups. We describe the applied socio-technical design process, and discuss experiences and lessons learned.

@incollection{noKey, author = {Atzmueller, Martin and Behrenbruch, Kay and Hoffmann, Axel and Kibanov, Mark and Macek, Bjoern-Elmar and Scholz, Christoph and Skistims, Hendrik and Söllner, Matthias and Stumme, Gerd}, title = {Connect-U: A System for Enhancing Social Networking}, editor = {David, Klaus and Geihs, Kurt and Leimeister, Jan Marco and Roßnagel, Alexander and Schmidt, Ludger and Stumme, Gerd and Wacker, Arno}, booktitle = {Socio-technical Design of Ubiquitous Computing Systems}, publisher = {Springer International Publishing}, year = {2014}, pages = {261-275}, url = {http://dx.doi.org/10.1007/978-3-319-05044-7_15}, doi = {10.1007/978-3-319-05044-7_15}, isbn = {978-3-319-05043-0}, keywords = {2014, itegpub, myown}, abstract = {The application of ubiquitous and social computational systems shows a rapidly increasing trend in our everyday environments: Enhancing social interactions and communication in both online and real-world settings is an important issue in a broad range of application contexts. This chapter describes the development of ubiquitous and social software for enhancing social networking. The Connect-U demonstrator features a class of such applications. In particular, it comprises the Conferator and MyGroup applications for enabling smarter social interactions in the context of conferences and working groups. We describe the applied socio-technical design process, and discuss experiences and lessons learned.} }

%0 = incollection %A = Atzmueller, Martin and Behrenbruch, Kay and Hoffmann, Axel and Kibanov, Mark and Macek, Bjoern-Elmar and Scholz, Christoph and Skistims, Hendrik and Söllner, Matthias and Stumme, Gerd %B = Socio-technical Design of Ubiquitous Computing Systems %D = 2014 %I = Springer International Publishing %T = Connect-U: A System for Enhancing Social Networking %U = http://dx.doi.org/10.1007/978-3-319-05044-7_15

@inproceedings{ATSK:14, author = {Atzmueller, Martin and Thiele, Lisa and Stumme, Gerd and Kauffeld, Simone}, title = {Evolution and Dynamics of Student Interaction on Networks of Face-to-Face Proximity}, booktitle = {Proceedings of the 2014 International Smart University Workshop (SmartU 2014), London, UK}, address = {London, UK}, year = {2014}, keywords = {2014, itegpub, myown} }

%0 = inproceedings %A = Atzmueller, Martin and Thiele, Lisa and Stumme, Gerd and Kauffeld, Simone %B = Proceedings of the 2014 International Smart University Workshop (SmartU 2014), London, UK %C = London, UK %D = 2014 %T = Evolution and Dynamics of Student Interaction on Networks of Face-to-Face Proximity

@inproceedings{AEKSS:14, author = {Atzmueller, Martin and Ernst, Andreas and Krebs, Friedrich and Scholz, Christoph and Stumme, Gerd}, title = {On the Evolution of Social Groups During Coffee Breaks}, booktitle = {Proc. WWW 2014 (Companion)}, year = {2014}, keywords = {2014, itegpub, myown} }

%0 = inproceedings %A = Atzmueller, Martin and Ernst, Andreas and Krebs, Friedrich and Scholz, Christoph and Stumme, Gerd %B = Proc. WWW 2014 (Companion) %D = 2014 %T = On the Evolution of Social Groups During Coffee Breaks

@inbook{ABHKMSSSS:14, author = {Atzmueller, Martin and Behrenbruch, Kay and Hoffmann, Axel and Kibanov, Mark and Macek, Bjoern-Elmar and Scholz, Christoph and Skistims, Hendrik and Söllner, Matthias and Stumme, Gerd}, title = {Socio-technical Design of Ubiquitous Computing Systems}, editor = {David, Klaus and Geihs, Kurt and Leimeister, Jan-Marco and Roßnagel, Alexander and Schmidt, Ludger and Stumme, Gerd and Wacker, Arno}, publisher = {Springer Verlag}, address = {Heidelberg, Germany}, year = {2014}, keywords = {2014, itegpub, myown} }

%0 = inbook %A = Atzmueller, Martin and Behrenbruch, Kay and Hoffmann, Axel and Kibanov, Mark and Macek, Bjoern-Elmar and Scholz, Christoph and Skistims, Hendrik and Söllner, Matthias and Stumme, Gerd %B = } %C = Heidelberg, Germany %D = 2014 %I = Springer Verlag %T = Socio-technical Design of Ubiquitous Computing Systems} %U =

@article{ABKSDHMMMS:14, author = {Atzmueller, Martin and Becker, Martin and Kibanov, Mark and Scholz, Christoph and Doerfel, Stephan and Hotho, Andreas and Macek, Bjoern-Elmar and Mitzlaff, Folke and Mueller, Juergen and Stumme, Gerd}, title = {Ubicon and its Applications for Ubiquitous Social Computing}, journal = {New Review of Hypermedia and Multimedia}, year = {2014}, volume = {20}, number = {1}, pages = {53--77}, doi = {10.1080/13614568.2013.873488}, keywords = {2014, itegpub, myown} }

%0 = article %A = Atzmueller, Martin and Becker, Martin and Kibanov, Mark and Scholz, Christoph and Doerfel, Stephan and Hotho, Andreas and Macek, Bjoern-Elmar and Mitzlaff, Folke and Mueller, Juergen and Stumme, Gerd %D = 2014 %T = Ubicon and its Applications for Ubiquitous Social Computing

@article{doerfel2014cores, author = {Doerfel, Stephan and Jäschke, Robert and Stumme, Gerd}, title = {The Role of Cores in Recommender Benchmarking for Social Bookmarking Systems}, journal = {Transactions on Intelligent Systems and Technology}, publisher = {ACM}, year = {2014}, keywords = {2014, itegpub, myown} }

%0 = article %A = Doerfel, Stephan and Jäschke, Robert and Stumme, Gerd %D = 2014 %I = ACM %T = The Role of Cores in Recommender Benchmarking for Social Bookmarking Systems

@article{KASS:14, author = {Kibanov, Mark and Atzmueller, Martin and Scholz, Christoph and Stumme, Gerd}, title = {Temporal Evolution of Contacts and Communities in Networks of Face-to-Face Human Interactions}, journal = {Science China}, year = {2014}, volume = {57}, keywords = {2014, itegpub, myown} }

%0 = article %A = Kibanov, Mark and Atzmueller, Martin and Scholz, Christoph and Stumme, Gerd %D = 2014 %T = Temporal Evolution of Contacts and Communities in Networks of Face-to-Face Human Interactions

@article{MAHS:14, author = {Mitzlaff, Folke and Atzmueller, Martin and Hotho, Andreas and Stumme, Gerd}, title = {The Social Distributional Hypothesis}, journal = {Journal of Social Network Analysis and Mining}, year = {2014}, volume = {4}, number = {216}, keywords = {2014, itegpub, myown} }

%0 = article %A = Mitzlaff, Folke and Atzmueller, Martin and Hotho, Andreas and Stumme, Gerd %D = 2014 %T = The Social Distributional Hypothesis

@article{DBLP:journals/corr/SAS_Arxiv14, author = {Scholz, Christoph and Atzmueller, Martin and Stumme, Gerd}, title = {Link Prediction and the Role of Stronger Ties in Networks of
ace-to-Face Proximity}, journal = {CoRR}, year = {2014}, volume = {abs/1407.2161}, keywords = {2014, itegpub, myown} }

%0 = article %A = Scholz, Christoph and Atzmueller, Martin and Stumme, Gerd %D = 2014 %T = Link Prediction and the Role of Stronger Ties in Networks of
ace-to-Face Proximity

Exploiting social links is an important issue for enhancing ubiquitous knowledge engineering because they are a substitute for a wide range of properties depending on which relation spans the link: in case of human face-to-face contacts, similar locations or potential knowledge transfer for the people in contact can be derived. This information can be used to improve the quality of ubiquitous services as localization or recommendation systems. We capture this information by deploying active RFID setups at a variety of contexts. In this chapter, we focus especially on working groups and conferences and discuss and evaluate the achieved improvements using the gathered data.

@incollection{scholz2014mining, author = {Scholz, Christoph and Macek, Bjoern-Elmar and Atzmueller, Martin and Doerfel, Stephan and Stumme, Gerd}, title = {Mining Social Links for Ubiquitous Knowledge Engineering}, editor = {David, Klaus and Geihs, Kurt and Leimeister, Jan Marco and Roßnagel, Alexander and Schmidt, Ludger and Stumme, Gerd and Wacker, Arno}, booktitle = {Socio-technical Design of Ubiquitous Computing Systems}, publisher = {Springer International Publishing}, year = {2014}, pages = {109-129}, url = {http://dx.doi.org/10.1007/978-3-319-05044-7_7}, doi = {10.1007/978-3-319-05044-7_7}, isbn = {978-3-319-05043-0}, keywords = {2014, itegpub, myown}, abstract = {Exploiting social links is an important issue for enhancing ubiquitous knowledge engineering because they are a substitute for a wide range of properties depending on which relation spans the link: in case of human face-to-face contacts, similar locations or potential knowledge transfer for the people in contact can be derived. This information can be used to improve the quality of ubiquitous services as localization or recommendation systems. We capture this information by deploying active RFID setups at a variety of contexts. In this chapter, we focus especially on working groups and conferences and discuss and evaluate the achieved improvements using the gathered data.} }

%0 = incollection %A = Scholz, Christoph and Macek, Bjoern-Elmar and Atzmueller, Martin and Doerfel, Stephan and Stumme, Gerd %B = Socio-technical Design of Ubiquitous Computing Systems %D = 2014 %I = Springer International Publishing %T = Mining Social Links for Ubiquitous Knowledge Engineering %U = http://dx.doi.org/10.1007/978-3-319-05044-7_7

@inproceedings{SAS:14a, author = {Scholz, Christoph and Atzmueller, Martin and Stumme, Gerd}, title = {On the Predictability of Recurring Links in Networks of Face-to-Face Proximity}, booktitle = {Proc. WWW 2014 (Companion)}, year = {2014}, keywords = {2014, itegpub, myown} }

%0 = inproceedings %A = Scholz, Christoph and Atzmueller, Martin and Stumme, Gerd %B = Proc. WWW 2014 (Companion) %D = 2014 %T = On the Predictability of Recurring Links in Networks of Face-to-Face Proximity

@inproceedings{SIAS:14a, author = {Scholz, Christoph and Illig, Jens and Atzmueller, Martin and Stumme, Gerd}, title = {On the Predictability of Talk Attendance at Academic Conferences}, booktitle = {Proc. 25th ACM Conference on Hypertext and Social Media}, publisher = {ACM Press}, address = {New York, NY, USA}, year = {2014}, keywords = {2014, itegpub, myown} }

%0 = inproceedings %A = Scholz, Christoph and Illig, Jens and Atzmueller, Martin and Stumme, Gerd %B = Proc. 25th ACM Conference on Hypertext and Social Media %C = New York, NY, USA %D = 2014 %I = ACM Press %T = On the Predictability of Talk Attendance at Academic Conferences

@article{DBLP:journals/corr/SIAS_Arxiv14, author = {Scholz, Christoph and Illig, Jens and Atzmueller, Martin and Stumme, Gerd}, title = {On the Predictability of Talk Attendance at Academic Conferences}, journal = {CoRR}, year = {2014}, volume = {abs/1407.0613}, keywords = {2014, itegpub, myown} }

%0 = article %A = Scholz, Christoph and Illig, Jens and Atzmueller, Martin and Stumme, Gerd %D = 2014 %T = On the Predictability of Talk Attendance at Academic Conferences

@inproceedings{scholz2014predictability, author = {Scholz, Christoph and Illig, Jens and Atzmueller, Martin and Stumme, Gerd}, title = {On the Predictability of Talk Attendance at Academic Conferences}, booktitle = {25th ACM Conference on Hypertext and Social Media (to appear)}, publisher = {ACM}, address = {Santiago, Chile, September 1-4}, year = {2014}, keywords = {2014, itegpub, myown} }

%0 = inproceedings %A = Scholz, Christoph and Illig, Jens and Atzmueller, Martin and Stumme, Gerd %B = 25th ACM Conference on Hypertext and Social Media (to appear) %C = Santiago, Chile, September 1-4 %D = 2014 %I = ACM %T = On the Predictability of Talk Attendance at Academic Conferences

@inproceedings{SIAS:14b, author = {Scholz, Christoph and Illig, Jens and Atzmueller, Martin and Stumme, Gerd}, title = {On the Predictability of Talk Attendance at Academic Conferences (Extended Abstract, Resubmission)}, booktitle = {Proc. LWA 2014 (KDML Special Track)}, publisher = {RTWH Aachen University}, address = {Aachen, Germany}, year = {2014}, keywords = {2014, itegpub, myown} }

%0 = inproceedings %A = Scholz, Christoph and Illig, Jens and Atzmueller, Martin and Stumme, Gerd %B = Proc. LWA 2014 (KDML Special Track) %C = Aachen, Germany %D = 2014 %I = RTWH Aachen University %T = On the Predictability of Talk Attendance at Academic Conferences (Extended Abstract, Resubmission)

@article{SIAS:14c, author = {Scholz, Christoph and Illig, Jens and Atzmueller, Martin and Stumme, Gerd}, title = {On the Predictability of Talk Attendance at Academic Conferences (Extended Version)}, journal = {CoRR}, year = {2014}, volume = {abs/1407.0613}, keywords = {2014, itegpub, myown} }

%0 = article %A = Scholz, Christoph and Illig, Jens and Atzmueller, Martin and Stumme, Gerd %D = 2014 %T = On the Predictability of Talk Attendance at Academic Conferences (Extended Version)

@article{SAS:14c, author = {Scholz, Christoph and Atzmueller, Martin and Stumme, Gerd}, title = {Predictability of Evolving Contacts and Triadic Closure in Human Face-to-Face Proximity Networks}, journal = {Journal of Social Network Analysis and Mining}, year = {2014}, volume = {4}, number = {217}, keywords = {2014, itegpub, myown} }

%0 = article %A = Scholz, Christoph and Atzmueller, Martin and Stumme, Gerd %D = 2014 %T = Predictability of Evolving Contacts and Triadic Closure in Human Face-to-Face Proximity Networks

@inbook{SMADS:14, author = {Scholz, Christoph and Macek, Bjoern-Elmar and Atzmueller, Martin and Doerfel, Stephan and Stumme, Gerd}, title = {Socio-technical Design of Ubiquitous Computing Systems}, editor = {David, Klaus and Geihs, Kurt and Leimeister, Jan-Marco and Roßnagel, Alexander and Schmidt, Ludger and Stumme, Gerd and Wacker, Arno}, publisher = {Springer Verlag}, address = {Heidelberg, Germany}, year = {2014}, keywords = {2014, itegpub, myown} }

%0 = inbook %A = Scholz, Christoph and Macek, Bjoern-Elmar and Atzmueller, Martin and Doerfel, Stephan and Stumme, Gerd %B = } %C = Heidelberg, Germany %D = 2014 %I = Springer Verlag %T = Socio-technical Design of Ubiquitous Computing Systems} %U =

@inproceedings{DBLP:conf/ismis/SAS14, author = {Scholz, Christoph and Atzmueller, Martin and Stumme, Gerd}, title = {Unsupervised and Hybrid Approaches for On-Line RFID Localization with Mixed Context Knowledge}, booktitle = {ISMIS}, year = {2014}, keywords = {2014, itegpub, myown} }

%0 = inproceedings %A = Scholz, Christoph and Atzmueller, Martin and Stumme, Gerd %B = ISMIS %D = 2014 %T = Unsupervised and Hybrid Approaches for On-Line RFID Localization with Mixed Context Knowledge

@inproceedings{TAKS:14, author = {Thiele, Lisa and Atzmueller, Martin and Kauffeld, Simone and Stumme, Gerd}, title = {Subjective versus Objective Captured Social Networks: Comparing Standard Self-Report Questionnaire Data with Observational RFID Technology Data}, booktitle = {Proc. Measuring Behavior}, address = {Wageningen, The Netherlands}, year = {2014}, keywords = {2014, itegpub, myown} }

%0 = inproceedings %A = Thiele, Lisa and Atzmueller, Martin and Kauffeld, Simone and Stumme, Gerd %B = Proc. Measuring Behavior %C = Wageningen, The Netherlands %D = 2014 %T = Subjective versus Objective Captured Social Networks: Comparing Standard Self-Report Questionnaire Data with Observational RFID Technology Data