21st Conference on Database Systems for
Business, Technology and Web (BTW 2025)

March 3 - 7, 2025 | Bamberg, Germany

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Conference Agenda

Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).

Session Overview

Date: Wednesday, 05/Mar/2025
9:00am - 9:30am	Opening: Opening Location: WE5/00.022 Chair: Daniela Nicklas, Universität Bamberg
9:30am - 10:30am	Keynote 1: Julia Stoyanovich: Follow the Data! Responsible AI Starts with Responsible Data Management Location: WE5/00.022 Chair: Meike Klettke, University of Regensburg
10:30am - 11:00am	Coffee Break	Student: Kick-Off Location: WE5/02.116
11:00am - 12:30pm	MongoDB: MongoDB Escape Room Location: WE5/01.006 Chair: Johannes Schildgen, OTH Regensburg	R1: Research 1: Query Processing 1 Location: WE5/00.022 Chair: Felix Schuhknecht, Johannes Gutenberg University Mainz 11:00am - 11:20am Improving Unnesting of Complex Queries Thomas Neumann TUM, Germany 11:20am - 11:40am Reaching New Limits: Discovery of Multi-Dimensional Disjunctive Subsequence-Queries with Intervals André Frochaux, Sarah Kleest-Meißner, Benjamin Scheidt Humboldt-Universität zu Berlin, Germany 11:40am - 12:00pm Re-imaged Joins with Reimagined Incremental Maintenance Wenhui Lyu¹, Goetz Graefe² 1: University of Wisconsin–Madison, USA; 2: Google, Madison Wis., USA 12:00pm - 12:20pm Complexity Analysis of Pipeline Execution Order Enumeration for Query Execution Plans Lukas Kurt Günther Landgraf^1,2, Florian Wolf², Wolfgang Lehner¹ 1: TU Dresden, Germany; 2: SAP SE, Walldorf, Germany 12:20pm - 12:30pm An Evaluation of NVMe-over-Fabrics for Disaggregated Databases over Fast Networks Jigao Luo^1,2, Nils Boeschen², Tobias Ziegler², Carsten Binnig^2,1 1: DFKI, Germany; 2: Technische Universität Darmstadt
12:30pm - 2:00pm	Lunch
1:30pm - 2:00pm	DASP: Datenbank-Spektrum Editor's Meeting Location: WE5/01.006 Chair: Uta Störl, FernUniversität Hagen
2:00pm - 2:35pm	FTT1: Fresh Thinking Talk 1 - Martin Potthast Location: WE5/00.022 Chair: Ralf Schenkel, Universität Trier Retrieval Technologies for the Infinite Index
2:40pm - 3:30pm	I1: Industry 1 Location: WE5/00.019 Chair: Tilmann Rabl, HPI Data-driven Database Engineering at Snowflake Max Heimel Snowflake, Germany GLLM: Self-Corrective G-Code Generation using Large Language Models with User Feedback Mohamed Abdelaal¹, Samuel Lokadjaja², Gilbert Engert² 1: Software GmbH, Germany; 2: TU Darmstadt, Germany Guardrails for Code Assistants Vincent Béraudier², Jay Griffin³, Hugues Juillé², Viu Long Kong², Alexander Lang¹ 1: IBM Germany; 2: IBM France; 3: IBM USA	R2: Research 2: Information Retrieval Location: WE5/00.022 Chair: Günther Specht, University of Innsbruck 2:40pm - 3:00pm Adjusting Fairness and Diversity in Search Results: User-Driven Re-Ranking for Water Research Literature Daphne Frederike Auer, Divyasha Sunil Naik, Birgitta König-Ries Friedrich Schiller University Jena, Germany 3:00pm - 3:20pm Facts-of-the-Case: Answering Complex Patient Questions Marina Walther, Michael Gertz Heidelberg University, Institute of Computer Science, Im Neuenheimer Feld 205, 69120 Heidelberg, Germany 3:20pm - 3:30pm DPQL: Applications for Holistic Data Profiling Marcian Seeger, Thorsten Papenbrock University of Marburg, Germany
3:30pm - 4:00pm	Coffee Break
4:00pm - 5:10pm	R3: Research 3: Query Processing 2 Location: WE5/00.022 Chair: Nicole Schweikardt, Humboldt-Universität zu Berlin 4:00pm - 4:20pm Optimizing Linearized Join Enumeration by Adapting to the Query Structure Altan Birler¹, Mihail Stoian², Thomas Neumann¹ 1: Technische Universität München; 2: UTN 4:20pm - 4:40pm Adaptive sorting for large keys, strings, and database rows Marius Kuhrt¹, Bernhard Seeger¹, Sebastian Wild¹, Goetz Graefe² 1: University of Marburg, Germany; 2: Google, Madison, Wisconsin, USA 4:40pm - 5:00pm FASTlabel: Making Supervised Query Optimizer Hinting Practical Kira Thiessat, Dirk Habich, Wolfgang Lehner TU Dresden, Germany 5:00pm - 5:10pm Lightweight Memory Access Monitoring for Dynamic Data Placement in Tiered Memory Systems Alexander Baumstark¹, Marcus Paradies², Kai-Uwe Sattler¹ 1: TU Ilmenau, Germany; 2: LMU München, Germany	T1: Tutorial 1: Efficient Execution of UDF Queries in Modern Data Engines (Alkis Simitsis) Location: WE5/01.006
5:10pm - 5:30pm	DemoMM: Demo/Student Paper Minute Madness Location: WE5/00.022
6:00pm - 8:00pm	Demo: Demo Reception Location: WE5/00.043 Chair: Alexander van Renen, UTN Chair: Varun Pandey, Technische Universität Nürnberg RAGONITE: Iterative Retrieval on Induced Databases and Verbalized RDF for Conversational QA over KGs with RAG Rishiraj Saha Roy, Chris Hinze, Joel Schlotthauer, Farzad Naderi, Viktor Hangya, Andreas Foltyn, Luzian Hahn, Fabian Kuech Fraunhofer IIS, Germany Monitoring of Heterogeneos Datastores in Poly- and MultiStores Mareike Schmidt, Jannik Kronziel, Annett Ungethüm University of Hamburg, Germany A Data Quality Dashboard for (Security) Knowledge Graphs Davyd Pizhuk¹, Lisa Ehrlinger², Gandalf Denk³, Verena Geist¹ 1: Software Competence Center Hagenberg; 2: Hasso Plattner Institute, Germany; 3: LIMES Security GmbH A Demonstration of Skyrise: A Serverless Query Processor Thomas Bodner, Tilmann Rabl Hasso Plattner Institute, University of Potsdam, Germany A Showcase of LLMs in Action: SQL Generation from Natural Language (Demo Paper) Johannes Schildgen, Florian Heinz OTH Regensburg, Germany Discovering Suitable Anonymization Techniques: A Privacy Toolbox for Data Experts Andrea Fieschi^1,2, Pascal Hirmer¹, Christoph Stach² 1: Mercedes-Benz AG, Germany; 2: University of Stuttgart, Germany Segmify: A Deep Learning-Based Interactive Tool for Real-Time Cell Segmentation and Morphological Analysis Despina Tawadros^1,2, Lena Wiese^1,2 1: Fraunhofer ITEM, Germany; 2: Goethe University Frankfurt, Germany Generating Federated REST API Servers Patrick Hansert, Bozhou Bai, Ngoc Anh Le, Sebastian Michel RPTU Kaiserslautern-Landau, Germany ReCLAIM: An Integrated Platform for Data on Nazi-Looted Cultural Assets Zero Susann Janetzki, Antonio Krühler, Luise Garberding, Romy Karbstein, Carl Friedrich Mecking, Konstantin Sturtzkopf, Sebastian Walker, Jan Wilhelm, Sedir Mohammed, Felix Naumann Hasso Plattner Institute, Germany Upcycling UnivIS: Discovering Study Planning 2.0 Michaela Ochs, Tobias Hirmer, Andreas Henrich University of Bamberg, Germany Interactive specification and visualization of group movement patterns in urban traffic data streams Andreas Morgen¹, Julius von Willich², Tim Kilb², Bernhard Seeger¹ 1: University of Marburg, Germany; 2: Technical University of Marburg, Germany Disaggregated Pipeline Grouping LIVE Andreas Geyer, Alexander Krause, Dirk Habich, Wolfgang Lehner Technische Universität Dresden, Germany Plaquette: Visualizing Redundancies in Relational Data Christoph Köhnen, Jens Zumbrägel, Stefanie Scherzinger University of Passau, Germany History-Based Active Learning Johannes Kastner, Felix Mack, Felix Sommer, Peter M. Fischer Universität Augsburg, Germany ReProVide: Query Optimisation and Near-Data Processing on Reconfigurable SoCs for Big Data Analysis Tobias Hahn, Maximilian Langohr, Stefan Meißner, Benedikt Döring, Stefan Wildermann, Klaus Meyer-Wegener, Jürgen Teich Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany Incremental Stream Query Merging In Action Ankit Chaudhary^1,2, Ninghong Zhu², Laura Mons², Steffen Zeuch^1,2, Varun Pandey², Volker Markl^1,2 1: BIFOLD; 2: TU Berlin, Germany Compression in Main Memory Database Systems: Cost and Performance Trade-Offs of Workload-Driven Data Encoding Martin Boissier, Marcel Weisgut, Tilmann Rabl Hasso Plattner Institute, Germany	DSC: Data Science Challenge Poster Reception Location: WE5/00.033 Chair: Marco Grawunder, University of Oldenburg Chair: Wolfram Wingerath, Uni Oldenburg BTW 2025 Data Science Challenge Hannes Bachmann, Emmanuel Diehl, Georg Gonsior, Daniel Ricardo Gonzalez Villamizar, Julius Hanusch, Clara Hüfner, Malte Alexander Maier-Knop, Jordan Wenzel Richter, Ansgar Seidemann, Moritz Tschöpe, Felix Wahler, Jimmy Pöhlmann, Claudio Hartmann, Wolfgang Lehner TU Dresden, Germany BTW 2025 Data Science Challenge - Predicting Day Ahead Energy Prices Chitranjan Gupta, Preethi Vijayanagaram, Rehman Rasheed, Darya Tsay University of Trier, Germany Predicting Day-ahead electricity prices Nafees Mohammad Adil, MD Humayun Kabir, Syed Hamza Abbas Naqvi, Abdus Samad University of Rostock, Germany Challange.zip Najaf Abdiyev, Bryan Dunsheng See, Moueiad Alnashi, Faraj Hassan Universität Rostock, Germany Forecasting Day-Ahead Energy Prices in Germany: A Comparative Study of Machine Learning Models Ben-Oliver Hosak, Elias von Brunn, Zeynep von Brunn, Yuka Nakamoto, Muaid Mughrabi TU Berlin, Germany	Student Poster: Poster Reception Location: WE5/00.033 Chair: Rainer Gemulla, Universität Mannheim Utilising Large Language Models for Adversarial Attacks in Text-to-SQL: A Perpetrator and Victim Approach Ariana Sahitaj¹, Markus Nilles², Ralf Schenkel², Vera Schmitt¹ 1: Technical University Berlin, Germany; 2: University of Trier, Germany Data Model Creation with MetaConfigurator Felix Neubauer, Jürgen Pleiss, Benjamin Uekermann University of Stuttgart, Germany Designing a FAIR Research Data Management System – Insights from a User Needs Study Sabine Diemt FernUniversität in Hagen, Germany Entwurf und Implementierung eines Workflow-Editors für die Geodatenverarbeitung Lutz Kremer Philipps-Universität Marburg, Germany Evaluation of the HTAP Benchmark HyBench Tom Lange Technische Universität Dresden, Germany OPSC: Catching the “Oops” in JDBC PreparedStatements with Static Code Analysis Thomas James Kirz University of Passau, Germany Robust Plan Selection using Cardinality Distribution Models Jonas Fan-cheng Meng University of Konstanz, Germany SMART: Self-supervised Model aligning APIs and RDF using Transformers Elena Nathalie Valette, Tobias Zeimetz, Henning Fernau, Ralf Schenkel Universität Trier, Germany Transactional YCSB: Benchmarking ACID-Compliant NoSQL Systems with Multi-Operation Transactions Benedikt Maria Beckermann^1,2 1: Schloss Dagstuhl – Leibniz-Zentrum für Informatik; 2: Universität Trier Achilles' SPEar: Using Metamorphic Testing to Find Bugs in Stream Processing Engines Magnus Erk Kroner Technische Universität Berlin, Germany Benchmarking the RDF and Property Graph Model in the Temporal Dimension - A Case Study with Finbench Theo Hahn^1,2, Marvin Hofer¹, Erhard Rahm^1,2 1: ScaDS.AI, Humboldtstraße 25, 04105 Leipzig, Germany; 2: University Leipzig, Augustuspl. 10, 04109 Leipzig, Datenbanken, Germany CheDDaR: Checking Data -- Data Quality Report Indra Diestelkämper¹, Ralf Diestelkämper², Valerie Restat¹ 1: University of Hagen; 2: Flinkback GmbH

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21st Conference on Database Systems for Business, Technology and Web (BTW 2025)

March 3 - 7, 2025 | Bamberg, Germany

Conference Agenda

21st Conference on Database Systems for
Business, Technology and Web (BTW 2025)