10.09.2019
Julian Risch, Anke Stoll, Marc Ziegele, Ralf Krestel
We are happy to announce that our paper titled Offensive …
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09.08.2019
We are happy to announce that our paper "Inclusion Dependency Discovery:An Experimental Evaluation of Thirteen Algorithms" …
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09.08.2019
We are happy to announce that our vision paper "A Scoring-based Approach for Data Preparator Suggestion" has been …
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06.08.2019
We are happy to announce that our paper "Transforming Pairwise Duplicates to Entity Clusters for High Quality Duplicate …
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06.08.2019
Die neuste Ausgabe des Datenbank-Spektrum - Volume 19 Nummer 2 ist online. Zu den Gastautoren dieses Heftes zählen Jens …
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11.07.2019
We are happy to announce that our article "Mining Business Relationships from Stocks and News" has been accepted as a full …
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11.07.2019
Ph.D. and Postdoc Scholarships available...
The newly established research school „Data Science and Engineering” unites …
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11.06.2019
We are happy to announce that our paper "Holistic Primary Key and Foreign Key Detection" has been accepted by Journal of …
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07.06.2019
Nitisha Jain, Ralf Krestel
Our submission "Who is Mona L.? Identifying Mentions of Artworks in Historical Archives" has …
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03.06.2019
Julian Risch and Ralf Krestel
Our chapter Toxic Comment Detection in Online Discussions has been accepted for …
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09.05.2019
Julian Risch and Ralf Krestel
Our article "Measuring and Facilitating Data Repeatability in Web Science" has been accepted …
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30.04.2019
We are happy to announce Felix Naumann won the ICDE 2019 outstanding reviewer award. Special thanks go to Konstantina, …
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28.03.2019
Julian Risch and Ralf Krestel
Our article "Domain-Specific Word Embeddings for Patent Classification" has been accepted …
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11.03.2019
Congratulations to Thorsten Papenbrock who received the Dissertation Award during the symposium "Datenbanksysteme für …
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08.01.2019
We are happy to announce that Felix Naumann has contributed Chapter 13 'The Relational Database Management Systems …
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12.12.2018
We're pleased to announce that our paper "Cardinality Estimation: An Experimental Survey" has been posted on the pVLDB …
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06.12.2018
We are happy to announce that our project "DynFD: Functional Dependency Discovery in Dynamic Datasets" has been accepted as …
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21.11.2018
Our submission “Book Recommendation Beyond the Usual Suspects: Embedding Book Plots Together with Place and Time …
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20.11.2018
We are happy to announce that Thorsten Papenbrock, Ziawasch Abedjan, Lukasz Golab, and Felix Naumann published a book with …
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29.10.2018
The Metanome data profiling tool and all its metadata discovery algorithms have just stepped from version 1.1 to version …
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28.10.2018
Our submission “Beacon in the Dark: A System for Interactive Exploration of Large Email Corpora” by Tim Repke, Ralf …
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17.09.2018
In cooperation with AT&T Research, our PVLDB vision paper “Exploring Change - A New Dimension of Data Analytics” has been …
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04.09.2018
Julian Risch, Eva Krebs, Alexander Löser, Alexander Riese, Ralf Krestel
Our paper "Fine-Grained Classification of …
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03.09.2018
Betty van Aken, Julian Risch, Ralf Krestel, Alexander Löser
Our paper "Challenges for Toxic Comment Classification: An …
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07.08.2018
Our two demo papers
"CurEx – A System for Extracting, Curating, and Exploring Domain-Specific Knowledge Graphs from …
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13.07.2018
The paper 'Dissecting Company Names using Sequence Labeling' by Michael Loster, Manuel Hegner, Felix Naumann(HPI) and Ulf …
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12.07.2018
Werkstudent (m/w) IT-Support und IT-Systemadministration
IT-Support gesucht am Lehrstuhl für Informationssysteme von …
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11.07.2018
The paper 'Piggyback Profiling: Enhancing Query Results with Metadata' by Claudia Exeler, Maria Graber, Tino Junge, Stefan …
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29.06.2018
Ralf Krestel, Julian Risch
Two workshop papers describing our ongoing work in the field of comment analysis have been …
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18.06.2018
May we introduce our new GPU Server “Idun”. Idun (goddess of youth and immortality in norse mythology) is equipped with 4 …
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13.06.2018
Best Paper Nomination Received at JCDL 2018
Our submission “My Approach = Your Apparatus? Entropy-Based Topic Modeling on …
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06.06.2018
Auf den Seiten von Bloomberg, Reuters und The Verge geht es schon lange nicht mehr, bei der Neuen Zürcher Zeitung und der …
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05.06.2018
Sebastian Kruse has successfully defended his Ph.D. disputation on June 4th, 2018! His work focused on the topic "Scalable …
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05.06.2018
Zhe Zuo has successfully defended his Ph.D. disputation on June 1st, 2018! His work focused on the topic "From unstructured …
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31.05.2018
Toni Grütze has successfully defended his Ph.D. disputation on May 24th, 2018! His work focused on the topic "Adding Value …
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31.05.2018
We've moved, and you will find us from now on at Campus II, Building F at the second Floor. There is a big Seminar room on …
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16.05.2018
The article "Data Change Exploration using Time Series Clustering" by Leon Bornemann (HPI), Tobias Bleifuß …
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24.04.2018
Tobias Zieger has successfully defended his Ph.D. dissertation on April 24th, 2018! His work focused on the topic "Self …
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03.04.2018
Our work on detecting person locations in social media has been accepted for presentation at the 10th ACM Conference …
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26.03.2018
Carl Ambroselli, Ralf Krestel, Andreas Loos, Julian Risch
The results of the Master's thesis by Carl Ambroselli …
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16.03.2018
Laure Berti-Equille, Hazar Harmouch, Felix Naumann, Noel Novelli, and Saravanan Thirumuruganathan
Our paper …
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26.02.2018
Stefan Bunk, Ralf Krestel, Julian Risch
The results of the Master's theses by Stefan Bunk and Julian Risch have been …
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15.02.2018
Sebastian Kruse and Felix Naumann
Our paper "Efficient Discovery of Approximate Dependencies", which introduces the Pyro …
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05.02.2018
Shazia Sadiq, Juliana Freire, Renée J. Miller, Tamraparni Dasu, Ihab F. Ilyas, Felix Naumann, Divesh Srivastava, …
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30.01.2018
Tim Repke and Ralf Krestel
Our paper "Topic-aware Network Visualisation to Explore Large Email Corpora" has been accepted …
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19.01.2018
New project page and video available for Metacrate.
Click the link to get more information about that open …
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19.12.2017
Thorsten Papenbrock has successfully defended his Ph.D. dissertation on December 19th, 2017! His work focused on the topic …
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11.12.2017
Tim Repke and Ralf Krestel
Our paper "Bringing Back Structure to Free Text Email Conversations with Recurrent Neural …
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08.12.2017
We are very proud that our work on "Extracting Intuitive Sequence-Structure Motifs from High-Throughput RNA-Binding Protein …
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07.12.2017
The Metanome research group has just released most of their data profiling algorithms for the Metanome platform on GitHub …
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15.11.2017
Hazar Harmouch and Felix Naumann
Our paper "Cardinality Estimation: An Experimental Survey" has been accepted for …
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25.10.2017
Tobias Bleifuß, Sebastian Kruse and Felix Naumann
Our paper "Efficient Denial Constraint Discovery with Hydra" has been …
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22.09.2017
Konstantina Lazaridou, Ralf Krestel, Felix Naumann
Our paper "Identifying Media Bias by Analyzing Reported Speech" is …
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20.09.2017
Our submission “What Should I Cite? Cross-Collection Reference Recommendation for Patents and Papers” by Julian Risch and …
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17.08.2017
Zhe Zuo, Michael Loster, Felix Naumann, Ralf Krestel, Julian Risch
Our two papers "Uncovering Business …
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07.08.2017
Sebastian Kruse, David Hahn, Marius Walter, Felix Naumann
Our demo proposal for Metacrate has been accepted for …
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05.06.2017
Julian Risch, Ralf Krestel
Our paper "What Should I Cite? Cross-Collection Reference Recommendation of Patents and Papers" …
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21.04.2017
Tim Repke, Michael Loster, Ralf Krestel
Our paper "Comparing Features for Ranking Relationships Between Financial Entities …
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05.04.2017
Tobias Bleifuß, Theodore Johnson, Dmitri V. Kalashnikov, Felix Naumann, Vladislav Shkapenyuk and Divesh Srivastava
Our …
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15.03.2017
Rheem has been selected for presentation at the Spark Summit 2017. Located in the Bay Area, the Spark Summit is with over …
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22.02.2017
Our tutorial "Data Profiling" will be held at the 2017 SIGMOD conference in Chicago. It is an evolved version of our 2016 …
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21.02.2017
The paper titled 'What was Hillary Clinton doing in Katy, Texas?' by Toni Gruetze, Konstantina Lazaridou, Ralf …
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16.12.2016
Call for papers VLDB 2017
Industrial, Applications, and Experience Track
August 28 to September 1, 2017 in Munich, …
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28.11.2016
Two papers on data profiling have been accepted at the BTW 2017. Both papers describe novel methods to discover different …
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21.11.2016
Mit dem Projekt "Metanome - Die Data Profiling Plattform" gewannen Thorsten Papenbrock, Sebastian Kruse, Hazar Harmouch und …
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04.10.2016
The paper "Cluster-based Sorted Neighborhood for Efficient Duplicate Detection" by Ahmad Samiei and Felix …
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06.09.2016
Vom 12. September bis zum 14. September findet am HPI die LWDA Konferenz statt, eine Kombination von Tagungen der vier GI …
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30.08.2016
Davide Mottin, Anja Jentzsch, and Emmanuel Müller will present the tutorial "Graph Exploration: Taking the user into the …
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20.07.2016
The paper "Approximate Discovery of Functional Dependencies for Large Datasets" has been selected for presentation at the …
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13.07.2016
After a public voting phase, Rheem has been chosen for a tutorial at the workshop for Big Data Open Source …
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07.07.2016
The paper titled 'Identifying Political Bias in News Articles' by Konstantina Lazaridou and Dr. Ralf Krestel has been …
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22.06.2016
The quarterly published IEEE Data Engineering Bulletin journal was just released. Its current issue contains articles that …
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14.06.2016
The Rheem project has now published its source code under the Apache License on GitHub.
Rheem is a cross-platform data …
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25.04.2016
The paper titled 'Topic Shifts in StackOverflow: Ask it like Socrates' by Toni Gruetze, Ralf Krestel, and Felix Naumann has …
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21.04.2016
The article "CohEEL: Coherent and Efficient Named Entity Linking through Random Walks" by Toni Gruetze (HPI), Gjergji …
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12.04.2016
Data optimization already touches many aspects of our lives promising a better, improved, even optimized, world. However, …
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07.04.2016
The two papers "A Hybrid Approach to Functional Dependency Discovery" and "RDFind: Finding Conditional Inclusion …
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30.03.2016
The Rheem project has been selected for a demo presentation at the SIGMOD 2016 (abstract at the bottom). The submission is …
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09.02.2016
A full paper has been accepted at the Q4APS workshop at the WWW 2016 conference. The paper is called 'Which Answer is Best? …
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20.01.2016
In the last few months, we introduced many new features in the Metanome data profiling tool: We incorporated several new …
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11.12.2015
The article "Holistic Data Profiling: Simultaneous Discovery of Various Metadata" by Jens Ehrlich, Mandy Roick, Lukas …
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09.11.2015
The article "Efficient Order Dependency Detection" by Philipp Langer (now IBM) and Felix Naumann (HPI) was accepted for …
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05.11.2015
After being nominated by the student body of HPI, the faculty for mathematics and natural sciences of the University of …
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10.09.2015
The results of the Master thesis by Tobias Schubotz are being presented at the Web Intelligence conference in Singapore in …
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26.08.2015
The paper titled 'How to Stay Up-to-date on Twitter with General Keywords' by Mandy Roick, Maximilian Jenders, and …
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20.08.2015
Demo at ISWC 2015
Exploring Linked Data Graph Structures
Anja Jentzsch, Christian Dullweber, Pierpaolo Troiano, …
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08.07.2015
Full Paper accepted at KI 2015:
A Serendipity Model For News Recommendation
Maximilian Jenders, Thorben Lindhauer, …
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01.07.2015
The former master's student Markus Freitag has won the prestigious TDWI award for the best master's thesis in the area of …
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08.06.2015
The demonstration paper "Data Profiling with Metanome" was accepted for the 2015 VLDB conference. The authors are …
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05.06.2015
The article "Profiling relational data: a survey" by Ziawasch Abedjan (MIT), Lukasz Golab (University of Waterloo) and …
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03.06.2015
Dr. Ralf Krestel about the programming language R and its use for predictive analytics (in German):
…
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06.05.2015
The data profiling framework Metanome is presented at SAP's Sapphire 2015 conference in Orlando. See here for details and …
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15.04.2015
Experiments and Analysis Paper
Functional Dependency Discovery: An Experimental Evaluation of Seven Algorithms
Thorsten …
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17.03.2015
Arvid Heise has successfully defended his Ph.D. dissertation on March 17, 2015! His work focused on the topic "Data …
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04.03.2015
Research Poster Paper
Tweet-Recommender: Finding Relevant Tweets for News Articles
Ralf Krestel and Thomas Werkmeister …
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27.02.2015
Research Paper
Learning Temporal Tagging Behaviour
Toni Gruetze, Gary Yao, and Ralf Krestel
Abstract. Social …
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30.01.2015
Dr. Ziawasch Abedjan graduated from HPI in June 2014. His dissertation with the title "Improving RDF Data with Data Mining" …
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12.01.2015
Research Paper
Divide&Conquer-based Inclusion Dependency Discovery
Thorsten Papenbrock, Sebastian Kruse, …
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08.01.2015
After eight months in the incubating phase, the Apache Software Foundation board unanimously passed the resolution to …
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08.01.2015
Research Paper
Scaling out the Discovery of Inclusion Dependencies
Sebastian Kruse, Thorsten Papenbrock, Felix …
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07.01.2015
Research Paper
Estimating Data Integration and Cleaning Effort
Sebastian Kruse, Paolo Papotti, Felix Naumann
…
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26.11.2014
Alexander Albrecht has successfully defended his Ph.D. dissertation on November 26, 2014! His work focused on the topic …
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06.11.2014
Our submission "DFD: Efficient Functional Dependency Discovery" by Ziawasch Abedjan, Patrick Schulze, and Felix Naumann to …
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27.10.2014
1st International Workshop on Data Integration and Applications
co-located with the IEEE International Conference on Data …
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27.10.2014
Johannes Lorey has successfully defended his Ph.D. dissertation on October 27, 2014!
His work focused on the …
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23.10.2014
Together with her co-authors Jens Lehmann, Robert Isele, Max Jakob, Dimitris Kontokostas, Pablo N. Mendes, Sebastian …
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26.09.2014
Das „Web der Daten“ hat sich seit Herbst 2011 mehr als verdreifacht. Das ist das Ergebnis einer Analyse, die …
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17.09.2014
Progressive Duplicate Detection
Thorsten Papenbrock and Arvid Heise and Felix Naumann
Abstract. Duplicate detection is …
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29.08.2014
Estimating the Number and Sizes of Fuzzy-Duplicate Clusters
Arvid Heise, Gjergji Kasneci, and Felix Naumann
Abstract. …
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18.07.2014
Ziawasch Abedjan has successfully defended his Ph.D. dissertation with distinction on July 18, 2014!
His work focused on …
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28.05.2014
25th International Conference on Computational Linguistics (COLING) August 23, 2014, Dublin, Ireland
…
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19.05.2014
Our paper "Ziawasch Abedjan and Felix Naumann. Amending RDF Entities with New Facts" from KNOW@LOD 2014 workshop …
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23.04.2014
We are happy to announce that Stratosphere has been accepted as a project for the Apache Incubator. The proposal has been …
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15.04.2014
Know@LOD 2014 and PROFILES 2014, co-located with 10th Extended Semantic Web Conference (ESWC) 2014
…
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01.04.2014
The Stratosphere Platform for Big Data Analytics
Alexander Alexandrov, Rico Bergmann, Stephan Ewen, Johann-Christoph …
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01.04.2014
Versatile optimization of UDF-heavy data flows with Sofa
Astrid Rheinländer, Martin Beckmann, Anja Kunkel, Arvid Heise, …
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27.12.2013
Research Paper
Bootstrapping Wikipedia to Answer Ambiguous Person Name Queries
Toni Gruetze, Gjergji Kasneci, …
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16.12.2013
5th International Workshop on
Data Engineering meets the Semantic Web (DESWeb)
In conjunction with ICDE 2014, Chicago …
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15.12.2013
Joint research on Stratosphere by TU Berlin, HU Berlin, and HPI
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09.12.2013
Ein Datenbankkurs mit 6.000 Teilnehmern:
Erfahrungen auf der openHPI MOOC Plattform
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16.10.2013
30th IEEE International Conference on Data Engineering (ICDE), Chicago, IL, USA, March 31st - April 4th, 2014
…
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07.10.2013
40th International Conference on Very Large Data Bases (VLDB), Hangzhou, China, 1st - 5th September 2014
Scalable …
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01.10.2013
15th International Conference on Information Integration and Web-based Applications & Services
…
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13.09.2013
Christoph Böhm has successfully defended his Ph.D. dissertation on September 13, 2013.
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28.08.2013
Systematic ETL Management – Experiences with high-level Operators
by Alexander Albrecht and Felix Naumann
and
On …
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20.08.2013
We have just released the latest version of our RDBMS Genealogy showing a timeline of many popular relational database …
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14.06.2013
Jana Bauckmann has successfully defended her Ph.D. dissertation on June 14, 2013.
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03.06.2013
Dustin Lange successfully defends his PhD thesis "Effective and Efficient Similarity Search in Databases".
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26.04.2013
Special Issue on RDF Data Management (German Database Forum)
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25.04.2013
25th International Conference on Scientific and Statistical Database Management (SSDBM), July 29-31, 2013, Baltimore, …
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23.04.2013
Felix Naumann. Data Profiling Revisited. SIGMOD Record (to appear), 2013.
Data profiling comprises a …
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19.03.2013
Analyzing and Predicting Viral Tweets
Maximilian Jenders, Gjergji Kasneci, and Felix Naumann
Abstract. Twitter and …
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10.03.2013
The submission "Duplicate Detection on GPUs" by Benedikt Forchhammer, Thorsten Papenbrock, Thomas Stening, Sven …
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23.02.2013
10th Extended Semantic Web Conference in Montpellier, France
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29.11.2012
Cost-Aware Query Planning for Similarity Search
Dustin Lange and Felix Naumann
Abstract. Similarity search aims to …
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27.11.2012
15th BTW conference on "Database Systems for Business, Technology, and Web" (BTW 2013) Magdeburg, Germany
…
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17.11.2012
On November 17 Felix Naumann talked about "The Quality of Web Data" at the 2012 International Conference on …
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15.10.2012
Cross-lingual Entity Matching and Infobox Alignment in Wikipedia
Daniel Rinser, Dustin Lange, and Felix Naumann
…
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09.09.2012
A tool to deduplicate scientific references
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20.08.2012
Fusion Cubes: Towards Self-Service Business Intelligence
Alberto Abelló, Jérôme Darmont, Lorena …
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26.07.2012
On July 26 Felix Naumann talked about "Extreme Web Data Integration" at the 2012 International Conference on Web …
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25.07.2012
21st ACM International Conference on Information and Knowledge Management (CIKM) will be held from October 29 to November …
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29.06.2012
DBRank 2012 – 6th International Workshop on Ranking in Databases, in conjunction with VLDB 2012
Scalable …
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27.05.2012
I-SEMANTICS 2012 – 8th Int. Conference on Semantic Systems, Graz, Austria
Scalable Peer-to-Peer-based RDF Management
…
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25.05.2012
31st International Conference on Conceptual Modeling (ER 2012) - Florence, Italy
Schema Decryption for Large …
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27.03.2012
Proceedings of the 24th International Conference on Scientific and Statistical Database Management, 25-27 June …
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08.03.2012
Demo and LDOW paper accepted
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27.02.2012
Integrating Open Government Data with Stratosphere for more Transparency
Arvid Heise and Felix Naumann
Abstract. …
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13.02.2012
The eighth international conference on Language Resources and Evaluation (LREC), Istanbul, Turkey.
"Fine-grained …
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27.01.2012
IQ Best Master Degree Wettbewerb der Deutschen Gesellschaft für Informations- und Datenqualität e. V. (DGIQ)
…
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17.01.2012
See the new video about our Government Data Integration platform GovWILD.
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16.12.2011
"Enriched Service Descriptions: Sources, Approaches, and Usages"
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03.11.2011
As part of our winning submission at the 2010 Billion Triple Challenge at the International Semantic Web Conference, we …
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27.09.2011
28th IEEE International Conference on Data Engineering (ICDE) Washington, DC, USA
Adaptive Windows for Duplicate …
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more
27.09.2011
The GovWILD team is happy to announce that the latest version of the LOD cloud (September 2011) includes the GovWILD data …
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25.08.2011
The 19th International Conference on Cooperative Information Systems (CoopIS) Crete, Greece
Instance-based …
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09.08.2011
Revealing Hidden Relations among Web Services
Using Business Process Knowledge ...
Mohammed AbuJarour and Ahmed Awad
…
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22.07.2011
Proceedings of the 20th ACM Conference on Information and Knowledge Management, CIKM 2011, Glasgow, UK, October 24-28, 2011 …
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20.07.2011
Journal of Web Semantics: Science, Services and Agents on the World Wide Web, 9(3):339-345, 9/2011
Creating voiD …
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05.07.2011
With iPopulator, we have introduced a system that automatically populates infoboxes of Wikipedia articles by …
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01.07.2011
International Conference on Data and Knowledge Engineering (ICDKE 2011), Milan
A Generalization of Blocking and Windowing …
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04.05.2011
As part of a seminar supervised by Prof. Naumann and Johannes Lorey in the last winter term, a group of students …
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21.04.2011
Discovering Linkage Patterns among Web Services
using Business Process Knowledge ...
Mohammed AbuJarour and Ahmed Awad
…
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11.04.2011
Automatic Sampling of Web Services
Mohammed AbuJarour and Sebastian Oergel
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01.04.2011
"Efficient Query Answering in Peer Data Management Systems" ...
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30.03.2011
Scalable Iterative Graph Duplicate DetectionMelanie Herschel, Felix Naumann, Sascha Szott, and Maik TaubertTransaktions on …
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09.03.2011
"Data Fusion and Conflict Resolution in Integrated Information Systems" ...
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09.03.2011
"Extraktion und Identifikation von Entitäten in Textdaten im Umfeld der Enterprise Search" ...
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