Information Systems Group

Hasso-Plattner-Institut

Prof. Dr. Felix Naumann

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Our group includes PostDocs, PhD students, and student assistants, and is headed by Prof. Felix Naumann. If you are interested in joining our team, please contact Felix Naumann.

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For bachelor students we offer German lectures on database systems in addition to paper- or project-oriented seminars. Within a one-year bachelor project, students finalize their studies in cooperation with external partners. For master students we offer courses on information integration, data profiling, and information retrieval enhanced by specialized seminars, master projects and we advise master theses.

Das Feinkost Data Warehouse

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Most of our research is conducted in the context of larger research projects, in collaboration across students, across groups, and across universities. We strive to make available most of our datasets and source code.

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Please do not hesitate to reach out directly to us, if you cannot find a paper, slides, or other research artifacts.

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Completed master's theses

Listed here are student theses since winter semester 2005/2006. All master's theses are available upon request as pdf files. Please contact office-naumann.

2024

Topic	Student	Advisors	Last seen as/at
The Effects of Data Quality on Named Entity Recognition Published at WNUT@EACL24	Divya Bhadauria (Universität Potsdam)	Felix Naumann, Ralf Krestel, Alejandro Sierra Múnera

2023

Topic	Student	Advisors	Last seen as/at
NumbER - Entity Resolution on Numerical Data	Lukas Laskowski	Fabian Panse, Felix Naumann	PhD student at HPI
Correlation Anomaly Detection in High-Dimensional Time Series	Niklas Köhnecke	Schmidl/Wenig, Papenbrock, Naumann	TNG Technology Consulting
Efficient Discovery of Conditional Unique Column Combinations	Torben Meyer	Youri Kaminsky, Felix Naumann	bakdata
Semantic Column Type Detection Using Pretrained Language Models	Jonathan Haas	Felix Naumann, Hazar Harmouch
Quantification of Diversity in Structured Data	Lisa Koeritz	Felix Naumann, Hazar Harmouch	Researcher at Internationales Zentrum für Ethik in den Wissenschaften (IZEW)
Leveraging Data Histories to Improve Entity Resolution	Sebastian Apitz	Felix Naumann, Leon Bornemann	kontura GmbH

2022

Topic	Student	Advisors	Last seen as/at
Estimating Population-Based Completeness in Web Tables	Johanna Schwinn (Universität Potsdam)	Naumann
Der Einfluss von Datenqualitätsmängeln auf Fairness in KI-Systemen	Isabel Bär	Naumann
HYPEX: Explainable Hyperparameter Optimization in Time Series Anomaly Detection published at BTW 2023	Mats Pörschke	Schmidl, Wenig, Naumann, Papenbrock	Software Engineer at Apple Heidelberg
Mona L. = M. Lisa = La Gioconda? Jointly Linking Entities and Extracting Relations with BERT	Lucas Silbernagel (HWR)	Jain, Naumann, Schaal	Analytics Engineer at Knowunity
Discovering Similarity Inclusion Dependencies published at SIGMOD 2023	Youri Kaminsky	Naumann, Pena	PhD student at HPI
Discovery of Complementation Dependencies	Jonas Hering	Naumann, Harmouch	Software Engineer at voize
Time Series Anomaly Detection: An Aircraft Turbine Case Study	Jacopo Roberto Nicosia (University of Milano-Bicocca)	Schmidl, Wenig, Papenbrock
Efficient Ultrafine-Grained Typing of Named Entities published at JCDL 2023	Jan Westphal	Naumann, Krestel, Sierra Múnera	ML Engineer at voize

2021

Topic	Student	Advisors	Last seen as/at
Diachronic Alignment of Induced Word Senses	Robert Schwanhold	Krestel, Repke	SAP Innovation Center
Inferring Regular Expressions from Database Columns	Tobias Niedling	Harmouch, Naumann
Extracting Tables From Plain Text Published at BTW 23	Leonardo Hübscher	Naumann, Jiang	IT Consultant at Netlight
Multi-Aspect Embeddings for Fiction Novels Published at WI 21	Lasse Kohlmeyer	Krestel, Repke	Capgemini
Distributed Duplicate Detection on Streaming Data	Jakob Köhler	Papenbrock
Continuous Learning for Hate Speech Detection	Sezi Dwi Sagarianti Prasetyo (Uni Potsdam)	Krestel
Generating Rap Lyrics with Flow and Rhythm	Noel Danz	Krestel, Repke

2020

Topic	Student	Advisors	Last seen as/at
Actor based Database System for Analytical Queries Published at BTW 2021	Julian Weise	Papenbrock	Snowflake
Distributed Graph Based Approximate Nearest Neighbor Search	Juliane Waack	Papenbrock	Snowflake
Efficient Distributed Discovery of Bidirectional Order Dependencies Published in The VLDB Journal	Sebastian Schmidl	Papenbrock	HPI
Distributed Detection of Sequential Anomalies in Time Related Data Sequences Published in The VLDB Journal	Johannes Schneider	Papenbrock, Wenig	SAP
Enriching Document Embeddings With Domain Knowledge Published at NAACL 2021	Philipp Hager	Krestel, Risch	PhD student at Amsterdam University
Distributed Unique Column Combination Discovery	Benjamin Feldmann	Papenbrock, Thomas Bläsius, Martin Schirneck	bakdata
Multi-Prototype Diachronic Word Embedding	Maxi Fischer	Krestel, Repke	Sopra Steria
Inclusion Dependency Discovery on Streaming Data	Alexander Preuss	Papenbrock	bakdata
Reactive Inclusion Dependency Discovery	Frederic Schneider	Papenbrock	Netlight, Berlin

2019

Topic	Student	Advisors	Last seen as/at
Context-aware Classification of News Comments	Johannes Filter	Krestel, Risch	AlgorithmWatch
Jointly Learning Document and Label Embeddings for Hierarchically Labeled Text Published at JCDL	Samuele Garda (Uni Potsdam)	Krestel, Risch	HU Berlin
Improving Stock Price prediction using News Articles and Company Networks Published at MIDAS	Thomas Kellermeier	Krestel, Repke	neXenio
Modeling News Commenters for Discussion Recommendation Published at WI	Victor Künstler	Krestel, Risch	bakdata
Finding Related Tables on the Web	Fabian Windheuser	Naumann, Harmouch	Palantir
Wikipedia Table Layout Detection and Standardization	Martin Zabel	Bleifuß, Bornemann, Naumann	Solutiance

2018

Topic	Student	Advisors	Last seen as/at
Automatically Managing News Comments Published at NAACL 2018	Carl Ambroselli	Risch, Krestel	Palantir
Efficient Discovery of Matching Dependencies Published at TODS	Philipp Schirmer	Papenbrock, Naumann	bakdata
Discovering Conditional Functional Dependencies	Maximilian Grundke	Papenbrock, Naumann
Efficient Detection of Genuine Approximate Functional Dependencies	Moritz Finke	Papenbrock, Naumann, Claudia Lehmann (SAP)	Google
Text Data Generation for Data Profiling Use Cases	Jennifer Stamm	Naumann, Papenbrock	SAP

2017

Topic	Student	Advisors	Last seen as/at
Uncertain Estimates in Cross-Platform Plan Optimization	Jonas Kemper	Kruse, Naumann	Mckinsey & Company
Temporal Outlier Detection in Reverse Vending Machine Data	Mariya Perchyk	Naumann, Zuo	Netlight
Detection of Inappropriate Content in Online Comments	Dustin Gläser	Krestel	Solutiance Systems GmbH
Multivalued Dependency Discovery	Tim Draeger	Papenbrock, Naumann	Cognizant
Improving Probabilistic Topic Models using Word Embeddings Published at JCDL 2018	Stefan Bunk	Krestel	Merantix
Large-Scale topic-based Analysis of political Discussions on Twitter	Jaqueline Pollak	Lazaridou, Grütze, Naumann	Seven Principles AG
Focused Crawling for Record Completion	Daniel Neuschäfer-Rube	Koumarelas, Naumann

2016

Topic	Student	Advisors	Last seen as/at
Entropy-Based Topic Modeling for Multiple Domain-Specific Text Collections Published at JCDL 2018	Julian Risch	Krestel	HPI
Efficient Denial Constraint Discovery Published at VLDB 2018	Tobias Bleifuß	Kruse, Naumann	HPI
Clozing the Gap: Knowledge Base Population by Answering Cloze Queries	Thomas Werkmeister	Krestel, Weissenborn (DFKI)
From text to facts: Relation extraction on German company websites	Tanja Bergmann	Loster, Naumann	Rasa
German Organization Name Part Classification	Manuel Hegner	Loster, Naumann	bakdata
Classification of German Newspaper Comments Published at LWDA 2016	Christian Godde	Krestel, Lazaridou
Modeling Binding Preferences of RNA-binding Proteins with Hidden Markov Models Published in Nucleic Acids Research	David Heller	Krestel, Marsico (MPI MolGen)	MPI MolGen
Context-based Tweet Recommendation for News Articles	Alexander Spivak	Krestel, Gruetze	Capgemini, Berlin
Data Profiling Benchmark and Tool Assessment	Johannes Eschrig	Naumann	SAP

2015

Topic	Student	Advisors	Last seen as/at
Quicker Ways of Doing Fewer Things: Improved Index Structures and Algorithms for Data Profiling	Jakob Zwiener	Kruse, Naumann	Google, Zurich
Dialog Act Recognition in Twitter Conversations Published in parts at SIGDIAL 2015	Elina Zarisheva	Stede, Naumann
Profiling Log Messages for Unknown Error Detection	Lukas Schulze	Naumann, Jenders, Oelmüller (ePost)
Efficient Order Dependency Detection Published in VLDB Journal	Philipp Langer	Naumann	IBM, Böblingen
Spinning a Web of Tables through Inclusion Dependencies Published in Transactions on Database Systems (TODS)	Fabian Tschirschnitz	Papenbrock, Naumann	SAP
Online Temporal Summarization of News Events Published at WI 2015	Tobias Schubotz	Krestel, Jenders	dubsmash
Discovery of Conditional Unique Column Combinations	Jens Ehrlich	Papenbrock, Naumann	IVU Traffic Technologies AG
A Topic-Based Search for Microblog Posts Published at LWA 2015	Mandy Roick	Krestel, Jenders	Audentia Management Consulting GmbH
Scanpath Comparison for Visual Search Analysis	Markus Hinsche	Kasneci, Naumann	Artory, Berlin

2014

Topic	Student	Advisors	Last seen as/at
Estimating Metadata of Query Results using Histograms	Cathleen Ramson	Naumann, Kruse	IVU Traffic Technologies AG
Using Twitter for Politician Tracking: Following our Leader's Paths	Jan Rehwaldt	Naumann, Kasneci
Optimization and Parallelization of Foodborne Disease Outbreak Analyses Winner of the 2015 TDWI Award	Markus Freitag	Naumann, Filter (BfR)	eitco
A Content-Based Serendipity Model for News Recommendation Published at KI 2015	Thorben Lindhauer	Kasneci/Jenders	camunda services GmbH
Large-Scale Twitter Hashtag Recommendation for Documents Published at TempWeb 2015	Gary Yao	Kasneci/Grütze	Zalando
Optimizing Performance of Linked Data Profiling (code) Published at PROFILES 2014	Benedikt Forchhammer	Naumann/Jentzsch	Independent software developer
Text Profiling: Aggregation Analyses on Sets of Texts	Matthias Kohnen	Naumann	Software Architect at SAP
Automatische Generierung eines Doktorvater-Stammbaumes	Thomas Kaske	Naumann
Depth-first Discovery of Functional Dependencies Published at CIKM 2014 - Winner of the Best Student Paper Award	Patrick Schulze	Naumann/Adedjan	Consultant for Neon Roots
Estimating the Complexity and Effort of Data Integration Published at EDBT 2015	Sebastian Kruse	Naumann/Papotti (QCRI)	HPI
Discovery of Strong- and Weak-Unique Column Combinations in Datasets	Claudia Lehmann	Naumann/Heise	SAP, Palo Alto
Discovering Matching Dependencies	Andrina Mascher	Naumann/Papenbrock	Signavio

2013

Topic	Student	Advisors	Last seen as/at
Entwicklung einer Experten-Suchmaschine	Stefan George	Kasneci
Iterative Data Cleansing	Tobias Rawald	Naumann, Heise
Incremental Data Profiling	Sven Viehmeier	Naumann, Abedjan
Progressive Duplicate Detection Published as TKDE article	Thorsten Papenbrock	Naumann, Heise	HPI, Wissenschaftlicher Mitarbeiter
Optimierung regelbasierter Duplikaterkennung	Florian Thomas	Naumann, Draisbach
Legislatum - Gesetzessuchmaschine für Laien	Stephan Wehrmeyer	Naumann
Strategies for structure-based rewriting of SPARQL queries for data prefetching	Armin Zamani	Naumann, Lorey	SAP
Produktduplikaterkennung und Titelfusion	Robert Aschenbrenner	Naumann

2012

Topic	Student	Advisors	Last seen as/at
Manuelle Duplikaterkennung mittels Crowdsourcing Second place in German Best Master Degree Award by DGIQ	David Wenzel	Vogel, Naumann	Capgemini
Context-aware Recommendations in Social Networks	Benjamin Emde	Abedjan, Naumann	GoEuro
Generating Query Suggestions by Exploiting Latent Semantics in Query Log	Fabian Lindenberg	Momtazi, Naumann	Ecotastic
Analyzing and Predicting Viral Tweets Published at MSND'13 workshop	Maximilian Jenders	Kasneci	PhD-Student, HPI
Erweiterung und Optimierung eines Graph-Clustering-Verfahrens	Eyk Kny	Böhm, Naumann	SAP Innovation Center Potsdam
Email Classification with Contextual Information	Michael Leben	Momtazi, Naumann
Summarizing Extract-Transform-Load Workflows	MinhTuan Nguyen	Naumann, Albrecht	Software Developer, Otto Group
Automatic Data Normalization Using Pattern-Based Repairs	Sebastian Kölle	Naumann, Heise

2011

Topic	Student	Advisors	Last seen as/at
Effiziente Ähnlichkeitssuche in einer großen Menge von Zeichenketten mittels Key-Value-Store Published at SSDBM 2012	Dandy Fenz	Lange, Naumann	Developer at madvertise Mobile Advertising GmbH
Automatisierte Konfiguration des D-Indexes zur Ähnlichkeitssuche	Matthias Pohl	Lange, Naumann	cpi GmbH, Berlin
HDRS: A Scalable Peer-to-Peer RDF Storage Infrastructure for Hadoop Published at I-Semantics 2012	Daniel Hefenbrock	Böhm, Naumann	Developer at Microsoft
Überlappendes Clustering von Konzepten	Johannes Gosda	Naumann, Böhm	Developer at Pass Consultion
Advanced Service Discovery: Beyond Full-text Search	Thomas Berger	AbuJarour, Naumann	Inubit AG, Berlin
Concept matching in the Web of Data Published at LDOW 2012	Toni Grütze	Böhm, Naumann	Wissenschaftlicher Mitarbeiter, HPI

2010

Topic	Student	Advisors	Last seen as/at
Duplikaterkennung unter Verwendung unstrukturierter Anteile	David Sonnabend	Naumann, AbuJarour, Vogel	lead on GmbH
Extraction of Management Concepts from Web Sites for Sentiment Analysis	Arvid Heise	Naumann, Walgenbach (Jena)	Research Assistant, HPI
Wikipedia cross-lingual Concept Identification and Infobox Alignment First place in IQ Best Master Degree Contest of dgiq Published in Information Systems journal	Daniel Rinser	Naumann, Lange
Optimizing query execution to improve the energy efficiency of database management systems	Tobias Flach	Naumann	PhD Student at UCSC
Discovering unique column combinations within a database Published at CIKM 2011	Ziawasch Abedjan	Naumann	PostDoc, MIT
A flexible index structure for interactive data profiling	Ingmar Rötzler	Böhm, Naumann
ETL process recommendation	Andriy Vedrych	Naumann, Albrecht

2009

Form	Topic	Student	Advisors	Last seen as/at
Master's thesis (extern FernUni Hagen)	Partitionierung zur effizienten Duplikaterkennung in relationalen Daten First place in IQ Best Master Degree Contest of dgiq Published at QDB 2009	Uwe Draisbach	Naumann, Schlageter (U Hagen)	Research Assistant, HPI
Master's thesis	Mining Webservices for Metadata	Martin Probst	Kaufer, Naumann	Senior Software Engineer, EMC
Master's thesis	Conception and Development of a user-validated repository for user research information	Alexander Renneberg	Naumann	Consultant, d-labs
Diplomarbeit (extern HU Berlin)	Nutzung von Statistiken über Daten-Overlap zur Anfrageoptimierung in Peer Data Management Systemen	Veronique Tietz	Roth, Naumann
Master's thesis	Entwicklung von Sonderprofilen für die effektive Duplikaterkennung in der SCHUFA Personendatenbank	Christin Koitschka	Bleiholder, Weis, Naumann	Deutsche Bank
Diplomarbeit (extern HU Berlin)	Merging Extract, Transform, Load Processes	Karsten Draba	Albrecht, Leser, Naumann
Master's thesis	Erstellung eines validierten Konzepts für eine Web-basierte Anwendung zum Einholen von frühzeitigem Endnutzer-Feedback	Jörn Hartwig	Naumann	CEO, d-labs
Master's thesis	Automatic Identification and Collection of Web Services	Mircea Craculeac	AbuJarour, Naumann	Junior Software Engineer, neofonie
Master's thesis	Generierung von Web Services zur Kapselung mehrstufiger Webformulare Published at ICSOC 2009	Tobias Vogel	Kaufer, Naumann	idealo, Berlin
Master's thesis	Adaptive Fenstergröße bei der Sorted Neighborhood Methode Published at ICDE 2012	Oliver Wonneberg	Szott, Naumann	IT at Butter Lindner, Berlin
Master's thesis	Learning to Extract Structured Information from Wikipedia Articles to Populate Infoboxes Published at CIKM 2010	Dustin Lange	Naumann, Böhm	Research Assistant, HPI
Master's thesis	Efficient Domain-Independent Planning using Declarative Programming	Murat Knecht	Naumann, Schaub (IfI)	Senior Software Developer at engageSPARK

2008

Form	Topic	Student	Advisors	Last seen as/at
Master's thesis	Parallelisierung von Graphduplikaterkennung Published in TKDE 2011	Maik Taubert	Weis, Szott, Naumann	Biotronik GmbH

2007

Form	Topic	Student	Advisors	Last seen as/at
Diplomarbeit (extern, HU Berlin)	Automatisiertes Auffinden von Präfix- und Suffix-Inklusionsabhängigkeiten in relationalen Datenbankmanagementsystemen First place in IQ Best Master Degree Contest of dgiq	Jan Hegewald	Leser, Naumann, Bauckmann	Teamleiter bei idealo internet GmbH
Diplomarbeit (extern, Uni Halle)	XML Schema Matching unter Verwendung der Tree Edit Distance	Sascha Szott	Naumann, Brass (U Halle), Weis, Kaufer	Zuse Institut (ZIB), Berlin

2005 – 2006 at Humboldt Universität

Form	Topic	Student	Advisors	Last seen as/at
Diplomarbeit (extern HU Berlin)	Entwurf eines Peer Data Management Systems mit Steuerungs- und Simulationskomponente	Martin Schweigert	Naumann	IVU Traffic Tech. AG
Diplomarbeit (extern HU Berlin)	Entwicklung einer Testumgebung für ein Peer Data Management System	Tobias Hübner	Naumann	ID-Berlin GmbH
Diplomarbeit (extern HU Berlin)	Tree-Edit-Distance based Schema Matching	Evgenia Ershova	Naumann
Diplomarbeit (extern HU Berlin)	Schemaintegration auf der Grundlage von Schema-Mappings	Jana Bauckmann	Naumann	WIdO
Diplomarbeit (extern HU Berlin)	Entwicklung von Klassifikation von Schema Mappings und deren Anwendung in einer Portallösung	Jens Harzer	Naumann	Wessendorf Software & Consulting GmbH
Diplomarbeit (extern HU Berlin)	Duplikaterkennung in XML Daten mit der Sorted Neighborhood Methode Published at EDBT 2006	Sven Puhlmannr	Naumann	Center for Language Technology - Macquarie University, Australia
Diplomarbeit (extern HU Berlin)	Kombination von Schema Matching Verfahren zur semi-automatischen Integration von Fahrzeug-Daten	Lenka Ivantysynova	Naumann	Graduierten- kolleg "Verteilte Informationssys."
Diplomarbeit (extern HU Berlin)	Datentransformation mittels Schema Mapping Published at BTW 2007	Frank Legler	Naumann	IBM Forschung & Entwicklung, Böblingen

Chair

Prof. Dr. Felix Naumann

Information Systems

E-Mail: felix.naumann(at)hpi.de

Assistant: Diana Stephan

Office: Campus II, House F, F-2.01
Tel.: +49 (0)331 5509-280
Fax: +49 (0)331 5509-287
E-Mail: office-naumann(at)hpi.de

To visit us, please see these directions.

News

03.04.2024 | Congratulations to the EDBT Best Paper Award!

05.03.2024 | Another Paper marked as reproducible by pVLDB Reproducibility Committee

21.01.2024 | Paper accepted at W-NUT 2024

We are excited to announce that our paper "The Effects of Data Quality on Named Entity Recognition" was accepted at the … > Zum Artikel

19.12.2023 | Congratulations Dr. Gerardo Vitagliano!

13.12.2023 | Two papers accepted at EDBT Conference 2024

Project highlights

Metanome: Big Data Profiling

Data Preparation

Janus: Change exploration

KITQAR: AI and Data Quality

People and open positions