Dr. rer. nat. Christian Sengstock
- Phone: +49 (0) 6221 / 54 - 5709
- Fax: +49 (0) 6221 / 54 - 5684
- Email: sengstock(at)informatik.uni-heidelberg.de
- Office hours: During lecture period, Tuesday 1-2 pm, or by appointment
About
I'm a researcher at the Database Systems Research Group Heidelberg of Prof. Dr. Michael Gertz. My focus is on spatio-temporal analysis and geographic knowledge discovery from social media. I successfully defended my PhD thesis in February 2015 (summa cum laude).
Short CV
- Education
2/2015: PhD in Computer Science, Heidelberg University, Summa cum laude (with excellence)
5/2007: Diploma in Geography (Minors: Computer Science, Economics), Heidelberg University, A+/1.0
- Work Experience
2009-now: Research Assistant at Database Systems Research Group, Heidelberg University
8/2010: Internship at SAP (HANA Group)
2007-2009: Software Consultant at Heidelberg mobil International GmbH
2002-2007: Student Worker (Programmer and System Administrator) at DKFZ, Institute of Geography, European Media Laboratory, and Heidelberg mobil International GmbH
For more details visit my Linkedin or XING profile.
Research Interests
- Data Mining / Knowledge Discovery in Databases
- Spatial Data Mining / Geographic Knowledge Discovery
- Social Media Analysis
- Spatial Statistics
- Massive Data Analysis
Professional Research Activities
- Programm Comittee, 23rd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL 2015
- Programm Comittee, 14th International Symposium on Spatial and Temporal Databases, SSTD 2015
- Programm Comittee, 22nd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL 2014
- Proceedings Co-Chair, 23rd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL 2015
- Proceedings Co-Chair, 22nd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL 2014
- Proceedings Co-Chair, 13th International Symposium on Spatial and Temporal Databases, SSTD 2013
- Additional Reviewer: CIKM, GIS, SSDBM
Publications
2015
- Christian Sengstock
Geographic Feature Mining: Framework and Fundamental Tasks for Geographic Knowledge Discovery from User-generated Data
Doctoral Thesis, Database Systems Research Group, Institute of Computer Science, Heidelberg University [PDF]
2014
- Anh Le, Michael Gertz, Christian Sengstock
An Event-based Framework for the Semantic Annotation of Locations
In: 18th East-European Conference on Advances in Databases and Information Systems, ADBIS' 14, Ohrid
2013
- Christian Sengstock, Michael Gertz, Florian Flatow, Hamed Abdelhaq
A Probablistic Model for Spatio-temporal Signal Extraction from Social Media
In: Proceedings of the 21th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACMGIS 2013, Orlando - Hamed Abdelhaq, Michael Gertz, Christian Sengstock
Spatio-temporal Characteristics of Bursty Words in Twitter Streams
In: Proceedings of the 21th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACMGIS 2013, Orlando - Hamed Abdelhaq, Christian Sengstock, and Michael Gertz
EvenTweet: Online Localized Event Detection from Twitter (demo paper)
In: 39th International Conference on Very Large Databases, VLDB 2013, Trento - Christian Sengstock, Michael Gertz
Spatial Itemset Mining: A Framework to Explore Itemsets in Geographic Space
In: Proceedings of the 17th East-European Conference on Advances in Databases and Information Systems, ADBIS 2013, Genova - Christian Sengstock, Michael Gertz, Hamed Abdelhaq and Florian Flatow
Reliable Spatio-temporal Signal Extraction and Exploration from Human Activity Records (demo paper)
In: Proceedings of the 13th International Symposium on Spatial and Temporal Databases, SSTD 2013, Munich
BEST DEMO AWARD
2012
- Christian Sengstock, Michael Gertz, Canh Tran Van
Spatial Interestingness Measures for Co-location Pattern Mining
In: International Workshop on Spatial and Spatiotemporal Data Mining, SSTDM-12 (ICDM 2012 Workshop), Brussels [PDF]
- Christian Sengstock, Michael Gertz
Latent Geographic Feature Extraction from Social Media
In: Proceedings of the 20th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACMGIS 2012, Redondo Beach [PDF] - Christian Sengstock, Michael Gertz
Latent Contextual Indexing of Annotated Documents (poster paper)
In: Proceedings of the 21th International Conference on World Wide Web, WWW 2012, Lyon [PDF]
2011
- Christian Sengstock, Michael Gertz
Exploration and Comparison of Geographic Information Sources using Distance Statistics
In: Proceedings of the 19th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACMGIS 2011, Chicago [PDF] - Christian Sengstock, Michael Gertz
CONQUER: A System for Efficient Context-aware Query Suggestion (demo paper)
In: Proceedings of the 20th International Conference on World Wide Web, WWW 2011 (Companion Volume), Hyderabad [PDF] - Maik Haesner, Conny Junghans, Christian Sengstock, Michael Gertz
Online Hot Spot Prediction in Road Networks
In: Database Systems for Business, Technology and Web, BTW 2011, Kaiserslautern
2010
- Christian Sengstock, Michael Gertz
Exploring Volunteered Geographic Information Using Scale-Dependent Frequent Pattern Mining
In: Geographic Information Science - 6th International Conference, GIScience 2010 (Extended Abstracts Volume), Zürich [PDF] - Christian Sengstock, Michael Gertz
Anwendung von Frequent Itemset Mining auf nutzergenerierte Geodaten
In: Geoinformatik 2010 Konferenzband, Kiel [PDF]
Talks
- Geographic Phenomenon Discovery from Unstructured Data
Invited Talk at CrowdAnalyser Workshop 2014
Heidelberg, May 8, 2014 - A Probablistic Model for Spatio-temporal Signal Extraction from Social Media
21th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACMGIS 2013
Orlando, November 7, 2013 - Spatial Itemset Mining: A Framework to Explore Itemsets in Geographic Space
17th East-European Conference on Advances in Databases and Information Systems, ADBIS 2013
Genova, September 2, 2013 - Spatial Interestingness Measures for Co-location Pattern Mining
International Workshop on Spatial and Spatiotemporal Data Mining (SSTDM-12), in conjunction with ICDM 2012
Brussels, December 10, 2012 [Slides] - Latent Geographic Feature Extraction from Social Media
20th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACMGIS 2012
Rendondo Beach, November 8, 2012 [Slides] - Exploration and Comparison of Geographic Information Sources using Distance Statistics
19th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACMGIS 2011
Chicago, November 3, 2011 - Learning from Geographic Information on the Web
Hengstenberg Symposium: Towards Digital Earth - 3D Spatial Data Infrastructures
Heidelberg, September 7, 2011 - Exploring Volunteered Geographic Information Using Scale-Dependent Frequent Pattern Mining
6th international conference on Geographic Information Science, GIScience 2010
Zürich, September 17, 2010 - Anwendung von Frequent Itemset Mining auf nutzergenerierte Geodaten
Geoinformatik 2010
Kiel, March 18, 2010 - Verarbeitung geowissenschaftlicher Daten mit Map Reduce
Vortrag am Insitut für Informatik, Universität Heidelberg
Heidelberg, December 17, 2009 - Agile Webentwicklung mit Grails: Einführung und Erfahrungsbericht (mit Matthias Merdes)
Andrena Entwicklertag
Karlsruhe, May 8, 2008 - Design und Implementierung des Fussgänger-Informationsportals Heidelberg mobil
Eingeladener Vortag für das Projektseminar “Bremen Inside” WS06/07, Universität Bremen
Bremen, December 7, 2006
Teaching Assistant
WS 2014/15
- Social Network Analysis
- Lab Projects (Praktika)
SS 2014
- Python Programming Course (Lecturer)
- Database Systems I (Datenbanken I)
- Recommender Systems Seminar
- Lab Projects (Praktika)
WS 2013/14
- Python Programming Course (Lecturer)
- Knowledge Discovery in Databases (KDD)
- Social Network Analysis Seminar
- Lab Projects (Praktika)
SS 2013
- Data Warehouses
- Topic Models Seminar
- Programming Assistance (Programmierberatung)
- Lab Projects (Praktika)
WS 2012/13
- Programming Assistance (Programmierberatung)
- Lab Projects (Praktika)
SS 2012
- Recommender Systems Seminar
- Programming Assistance (Programmierberatung)
- Lab Projects (Praktika)
WS 2011/12
- Knowledge Discovery in Databases
- Programming Assistance (Programmierberatung)
- Lab Projects (Praktika)
SS 2011
- Database Systems II (Datenbanken II)
- Lab Projects (Praktika)
WS 2010/11
- Spatial Databases (Räumliche Datenbanken)
- Lab Projects (Praktika)
SS 2010
- Database Systems I (Datenbanken I)
- Lab Projects (Praktika)
WS 2009/10
- Introduction to Computer Science (Einführung in die Praktische Informatik)
- Lab Projects (Praktika)
Stuff
[12/03/30] Twitter activity visualization: One month of twitter lights...
https://www.youtube.com/watch?v=NceqRs-VCZY
[11/07/10] ECML/PKDD Discovery Challenge 2011: Made it place 15 (62) in the cold start challenge. Not too good, not too bad.
