Technische Universität Braunschweig
Institut für Informationssysteme
Mühlenpfordtstraße 23, 2.OG
D-38106 Braunschweig
Phone:
Email:
Room:
I worked at IFIS from 2008 to 2016. Currently, I am an Assistant Professor at Web Information Systems Group at TU Delft.
My research focus is on exploring novel human-centered query paradigms (like analogy queries), incorporating crowd-sourcing into information systems research, applications of novel query paradigms in e-commerce and e-business, and database query personalization (e.g. Skyline queries).
Have a look at our new poster gallery to give you an idea:
Short CV
starting April 2016: Assistant Professor Delft University of Technology
2014-2016: PostDoc at Technische Universität Braunschweig
2012-2014: PostDoc at National Institute of Informatics, Tokyo, Japan
2011-2012: PostDoc at Technische Universität Braunschweig
2011: Defense of Doctoral Thesis at Technische Universität Braunschweig
2008-2011: Ph.D. Researcher at Technische Universit Braunschweig
2006-2008: Ph.D. Researcher Researcher at L3S Research Center, Leibniz University Hannover
2005: Diploma Thesis at Collaborative Software Development Laboratory, University of Hawai’i, Honolulu - Manoa, Certificate issued by University Kaiserslautern
2002-2004: Assistant Researcher at Fraunhofer Institute for Experimental Software Engineering, Kaiserslautern
2000-2004: Student at University Kaiserslautern
Teaching
I was the lecturer for the following lectures:
From 2010 to 2014, I was also a member of the steering commitee of the ITIS graduate school.
Projects
(2012-2015) in MovieExplore - Discovering Movies in a Human-Centric Fashion
project management
http://wwwalt.ifis.cs.tu-bs.de/sites/default/files/movieexplore_1.png
This project focuses on discovering the perceptual properties of movies (and also other experience items) for enabeling human-centric interaction paradigms. This will allow users to interact with complex product spaces in a more natural and easier to understand fashion.
see http://www.ifis.cs.tu-bs.de/project/movieexplore
(2015) SQL-Alchemist
project management
http://www.ifis.cs.tu-bs.de/webfm_send/1845
This project is funded by the presidential office of TU Braunschweig in order to foster and encourage innovation in university didactics. In this project, we develop novel concepts for teaching relational query languages like SQL, unifying approaches from modern didactics with mobile gamification. The goal of this project is to develop and establish a “serious” online game for supporting the B.Sc. lecture “Relational Databases 1”
see http://www.ifis.cs.tu-bs.de/content/sqlalchemist (in German)
(2013-2015) Anaqonda Project - Analogy Queries by Ontology-based Data Analytics
project management
http://wwwalt.ifis.cs.tu-bs.de/sites/default/files/anaqonda.png
The Anaqonda project deals with intelligent queries und personalization, and focuses especially on analogy queries. This project was funded by DAAD and executed at NII Tokyo.
For more information, see www.ifis.cs.tu-bs.de/content/anaqonda
(2006-2010) APIS - Advanced Personalization in Information Services
project member
http://www.ifis.cs.tu-bs.de/sites/default/files/apis.jpg
The APIS project (Advanced Personalization in Information Services) investigates the impact of personalization technology on future information provisioning. Being interdisciplinary between computer science and cognitive sciences a basic belief of the APIS group is that modern information provisioning needs advanced query processing and optimization techniques using and understanding human preferences, usage patterns, conceptual views and (domain) ontologies. At the same time the architectures for information provisioning have to move from monolithical database systems to more open service-oriented infrastructures.
Source Code for our Skyline Simulator & Datasets can be found here.
For more information, see http://www.ifis.cs.tu-bs.de/content/apis
(2006 - 2008) Prolix - Process Oriented Learning and Information Exchange
project member
http://wwwalt.ifis.cs.tu-bs.de/sites/default/files/prolix_logo.png
see ftp.cordis.europa.eu/pub/ist/docs/telearn/prolix.pdf
(2005) Hackystat
project member
see https://code.google.com/p/hackystat/
2008
Lofi, C., W. - T. Balke, and U. Güntzer, "Efficiently Performing Consistency Checks for Multi-Dimensional Preference Trade-Offs", 2nd IEEE International Conference on Research Challenges in Information Science (RCIS), Marrakech, Morocco, 2008. Abstract
Download: Fulltext-PDF (555.38 KB)
2007
Lofi, C., and W. Siberski, "Service Oriented Architectures for Open E-Learning Systems: An Overview of the Prolix Project", eTeaching & eScience, Hannover, Germany, 10/2007. Abstract
Balke, W. - T., C. Lofi, and U. Güntzer, "Incremental Trade-Off Management for Preference Based Queries", International Journal of Computer Science & Applications (IJCSA), vol. 4, no. 2, 06/2007. Abstract
Download: Fulltext-PDF (572.96 KB)Balke, W. - T., C. Lofi, and U. Güntzer, "User Interaction Support for Incremental Refinement of Preference-Based Queries", 1st IEEE International Conference on Research Challenges in Information Science (RCIS), Ouarzazate, Morocco, 04/2007. Abstract
Download: Fulltext-PDF (643.83 KB)Lofi, C., D. Olmedilla, O. Papapetrou, W. Siberski, J. L. D. Coi, A. Kösling, and E. Herder, "A Model for Competence Gap Analysis", 3rd International Conference on Web Information Systems and Technologies (WEBIST), Barcelona, Spain, 03/2007. Abstract
Download: Fulltext-PDF (103.53 KB)Balke, W. - T., C. Lofi, and U. Güntzer, "Eliciting Matters - Controlling Skyline Sizes by Incremental Integration of User Preferences", 12th International Conference on Database Systems for Advanced Applications (DASFAA), Bangkok, Thailand, 2007. Abstract
Download: dasfaa07-camRed.pdf (393.17 KB)
2005
Lofi, C., "cGQM - Ein zielorientierter Ansatz für kontinuierliche, automatisierte Messzyklen", Proceedings of the 4th National Conference on Software Measurement and Metrics (DASMA MetriKon 2005), Kaiserslautern, Germany, GI, 11/2005. Abstract
Download: Lofi, C., "Continuous GQM: An automated measurement framework for the GQM paradigm", Fachbereich Informatik, Kaiserslautern, Germany, University Kaiserslautern, 08/2005. Abstract
Download: metrikon05-cGQM.pdf (1.33 MB)
