Dutch Belgian Database Day 2015 (DBDBD 2015) 
on Wednesday, December 16, 2015
at Centrum Wiskunde & Informatica (CWI), Amsterdam, The Netherlands
Registration by Wednesday, December 9, 2015, is required for all participants.
Please register via http://event.cwi.nl/dbdbd2015/#Registration
The Dutch Belgian Database Day (DBDBD) is a yearly one-day workshop
organized by a Belgian or Dutch university, whose general topic is database
research. DBDBD invites submissions (1 page abstract) on a broad range of
database and database-related topics, including but not limited to data
storage and management, theoretical database issues, database performance,
data mining, information retrieval, data semantics, querying, ontologies
At DBDBD, junior researchers from the Netherlands and Belgium can present
their recent results, and meet senior researchers in the field of databases.
It is an excellent opportunity to meet up with your Belgian/Dutch
colleagues, and to get informed about the (recent) database-related research
performed in Belgian/Dutch universities. The workshop is also open to
non-Belgian/Dutch participants (presentations are in English). The workshop
consists of oral presentations. There are no printed proceedings.
Abstracts of talks will be published on the workshop's website.
This year, DBDBD is organized by the Database Architectures group  of
Centrum Wiskunde & Informatica (CWI) , the national research institute
for mathematics and computer science in the Netherlands, and under auspices
of SIKS , the Dutch research school for information and knowledge
systems. DBDBD 2015 will be held at CWI in Amsterdam (Netherlands) on
Wednesday, December 16, 2015.
Topics of Interest
We welcome submissions on all topics related to database research, including
but not limited to:
* Data storage and management, streaming data, peer-to-peer and cloud;
* Theoretical database issues, data models, semantics and languages;
* Database performance and scalability;
* Data integration, data quality, data cleaning, ontologies;
* Data mining, clustering, summarization, entity & event extraction;
* Data security, privacy and personalization;
* Information retrieval, data semantics, querying and ranking in databases;
* Bug Data & Data Science.
DBDBD has a tradition of favoring presentations by junior researchers.
Proposals for presentations should be made before or on November 27, 2015.
Each submission should contain:
* the title of the talk;
* the name of the prospective speaker;
* his/her affiliation;
* a one-page abstract;
* reference(s) to papers covered by the proposed presentation (if pertinent).
The format is a one-page pdf-document, to be sent to:
dbdbd2015 (at) CWI.nl
9:00 - 10:00 Arrival and Coffee
10:10 - 10:10 Opening
10:10 - 11:50 First Session (4x 25 min)
First-Order Under-Approximations of Consistent Query Answers
(Université de Mons)
Different ways of expressing boolean queries
Enumeration of Most General Why-Not Explanations
(University of Amsterdam)
JudgeD: a Probabilistic Datalog with Dependencies
(University of Twente)
11:50 - 13:00 Lunch
13:00 - 14:40 Second Session (4x 25 min)
MonetDBLite – Bringing Column Stores to the Masses
(Centrum Wiskunde & Informatica)
Efficient Joins on Heterogeneous Processors
Henning Funke, Sebastian Breß, Stefan Noll, Jens Teubner
(TU Dortmund University)
Data Blocks: Hybrid OLTP and OLAP on Compressed Storage using both Vectorization and Compilation
Harald Lang, Tobias Mühlbauer, Florian Funke, Peter Boncz, Thomas Neumann, Alfons Kemper
(Technical University Munich, Snowflake Computing, Centrum Wiskunde & Informatica)
Cleaning data with forbidden itemsets
Joeri Rammelaere, Floris Geerts, Bart Goethals
14:40 - 15:10 Coffee Break
15:10 - 16:50 Third Session (4x 25 min)
Aggregation of spatio-temporal and event log databases for stochastic characterization of process activities
Rodrigo Gonçalves, Rui Jorge Almeida, João M. C. Sousa
(Eindhoven University of Technology & Universidade de Lisboa)
Beauty and Brains: Detecting Anomalous Pattern Co-Occurrences
Roel Bertens, Jilles Vreeken, Arno Siebes
(Utrecht University, Max Planck Institute for Informatics and Saarland University)
Behavioral Dynamics from the SERP’s Perspective: What are Failed SERPs and How to Fix Them?
Julia Kiseleva, Jaap Kamps, Vadim Nikulin, Nikita Makarov
(Eindhoven University of Technology, University of Amsterdam, Yandex)
Extraction of family relationships from historical documents
Julia Efremova & Toon Calders
(Eindhoven University of Technology & Universit ́e Libre de Bruxelles)
16:50 - 17:00 Closing
17:00 - 19:00 Borrel (Drinks)
* Submission Deadline (1 page abstract): Friday, November 27, 2015
* Notification and program online: Wednesday, December 2, 2015
* Registration deadline: Wednesday, December 9, 2015
* Dutch-Belgian Database Day: Wednesday, December 16, 2015
DBDBD 2015 is organized under auspices of SIKS, the Dutch research school
for information and knowledge systems. Participation is free for all
SIKS-members (Phd-students, research fellows, senior research fellows and
associated members). For non SIKS-members, the registration fee is 50 euro
per person. This includes lunch and coffee breaks. Registration in advance
is necessary for all participants.
Please register on-line at http://www.cwi.nl/forms/dbdbd-2015-registration by Wednesday, December 9, 2015.
As a non SIKS-members, please pay the registration fee of € 50,- via https://shop.cwi.nl/catalogue/dbdbd-2015_30/ also by Wednesday, December 9, 2015.
DBDBD 2015 will be held at Centrum Wiskunde & Informatica (CWI), in
Amsterdam, The Netherlands. Address and directions are available on-line at
The Dutch-Belgian Database Day 2015 is organized by the Database
Architectures group of Centrum Wiskunde & Informatica (CWI) in Amsterdam
(Netherlands). The local organizers are
* Stefan Manegold (http://ww.cwi.nl/~manegold/)
* Martine Anholt Gunzeln (http://www.cwi.nl/people/1944)