Johann-Christoph Freytag

48 papers A* 1B 5Misc 2Journal 26Unranked 12
YearRankTypeTitle / Venue / Authors
2025 J jnl
Scalable Enforcement of Fine Grained Access Control Policies in Relational Database Management Systems.
CoRR
Anadi Shakya, Primal Pappachan, David Maier, Roberto Yus, Sharad Mehrotra, Johann-Christoph Freytag
2024 — conf
Memory Management in Complex Join Queries: A Re-evaluation Study.
SoCC
Shiva Jahangiri, Michael J. Carey, Johann-Christoph Freytag
2023 J jnl
A statistical method for predicting quantitative variables in association rule mining.
Inf. Syst.
Sedir Mohammed, Kerstin Rubarth, Sophie K. Piper, Fridtjof Schiefenhövel, Johann-Christoph Freytag, Felix Balzer, Sebastian Boie
2022 J jnl
BTW2021 erstmals als digitale Vortragsreihe.
Datenbank-Spektrum
Wolfgang Lehner, Kai-Uwe Sattler, Johann-Christoph Freytag
2022 J jnl
Design Trade-offs for a Robust Dynamic Hybrid Hash Join.
Proc. VLDB Endow.
Shiva Jahangiri, Michael J. Carey, Johann-Christoph Freytag
2022 B conf
From Images to Hydrologic Networks - Understanding the Arctic Landscape with Graphs.
SSDBM
Tabea Rettelbach, Moritz Langer, Ingmar Nitze, Benjamin M. Jones, Veit Helm, Johann-Christoph Freytag, Guido Grosse
2022 J jnl
Parallelizing filter-and-verification based exact set similarity joins on multicores.
Inf. Syst.
Fabian Fier, Johann-Christoph Freytag
2022 J jnl
SNGuess: A method for the selection of young extragalactic transients.
CoRR
N. Miranda, Johann-Christoph Freytag, Jakob Nordin, Rahul Biswas, Valery Brinnel, Christoffer Fremling, Marek Kowalski, Ashish Mahabal, Simeon Reusch, Jakob van Santen
2021 J jnl
A Quantitative Graph-Based Approach to Monitoring Ice-Wedge Trough Dynamics in Polygonal Permafrost Landscapes.
Remote. Sens.
Tabea Rettelbach, Moritz Langer, Ingmar Nitze, Benjamin M. Jones, Veit Helm, Johann-Christoph Freytag, Guido Grosse
2021 J jnl
Design Trade-offs for a Robust Dynamic Hybrid Hash Join (Extended Version).
CoRR
Shiva Jahangiri, Michael J. Carey, Johann-Christoph Freytag
2021 J jnl
Harmonizing heterogeneous multi-proxy data from lake systems.
Comput. Geosci.
Gregor Pfalz, Bernhard Diekmann, Johann-Christoph Freytag, Boris K. Biskaborn
2021 B conf
Scaling Up Set Similarity Joins Using a Cost-Based Distributed-Parallel Framework.
SISAP
Fabian Fier, Johann-Christoph Freytag
2020 J jnl
A formal approach to build privacy-awareness into clinical workflows.
SICS Softw.-Intensive Cyber Phys. Syst.
Saliha Irem Besik, Johann-Christoph Freytag
2020 — conf
Managing Consent in Workflows under GDPR.
ZEUS
Saliha Irem Besik, Johann-Christoph Freytag
2020 B conf
Parallelizing Filter-Verification Based Exact Set Similarity Joins on Multicores.
SISAP
Fabian Fier, Tianzheng Wang, Erkang Zhu, Johann-Christoph Freytag
2020 J jnl
Sieve: A Middleware Approach to Scalable Access Control for Database Management Systems.
CoRR
Primal Pappachan, Roberto Yus, Sharad Mehrotra, Johann-Christoph Freytag
2020 J jnl
Sieve: A Middleware Approach to Scalable Access Control for Database Management Systems.
Proc. VLDB Endow.
Primal Pappachan, Roberto Yus, Sharad Mehrotra, Johann-Christoph Freytag
2019 — conf
Ontology-Based Privacy Compliance Checking for Clinical Workflows.
LWDA
Saliha Irem Besik, Johann-Christoph Freytag
2019 J jnl
SAP HANA goes private - From Privacy Research to Privacy Aware Enterprise Analytics.
Proc. VLDB Endow.
Stephan Kessler, Jens Hoff, Johann-Christoph Freytag
2018 J jnl
An Analytical Approach to Improving Time Warping on Multidimensional Time Series.
CoRR
Jörg P. Bachmann, Johann-Christoph Freytag
2018 J jnl
Efficient Measuring of Congruence on High Dimensional Time Series.
CoRR
Jörg P. Bachmann, Johann-Christoph Freytag
2018 J jnl
High Dimensional Time Series Generators.
CoRR
Jörg P. Bachmann, Johann-Christoph Freytag
2018 J jnl
Measuring Congruence on High Dimensional Time Series.
CoRR
Jörg P. Bachmann, Johann-Christoph Freytag, Benjamin Hauskeller, Nicole Schweikardt
2018 — ch.
Query Processing and Optimization in Object Relational Databases.
Encyclopedia of Database Systems (2nd ed.)
Johann-Christoph Freytag
2018 J jnl
Set Similarity Joins on MapReduce: An Experimental Survey.
Proc. VLDB Endow.
Fabian Fier, Nikolaus Augsten, Panagiotis Bouros, Ulf Leser, Johann-Christoph Freytag
2018 — conf
Streams and Tables: Two Sides of the Same Coin.
BIRTE
Matthias J. Sax, Guozhang Wang, Matthias Weidlich, Johann-Christoph Freytag
2017 B conf
Dynamic Time Warping and the (Windowed) Dog-Keeper Distance.
SISAP
Jörg P. Bachmann, Johann-Christoph Freytag
2017 J jnl
Federated Semantic Data Management (Dagstuhl Seminar 17262).
Dagstuhl Reports
Olaf Hartig, Maria-Esther Vidal, Johann-Christoph Freytag
2016 J jnl
Editorial.
Datenbank-Spektrum
Johann-Christoph Freytag, Erik Buchmann, Theo Härder
2016 — conf
MapReduce Frameworks: Comparing Hadoop and HPCC.
LWDA
Fabian Fier, Eva Höfer, Johann-Christoph Freytag
2016 J jnl
Non-Invasive Progressive Optimization for In-Memory Databases.
Proc. VLDB Endow.
Steffen Zeuch, Holger Pirk, Johann-Christoph Freytag
2015 Misc conf
D2Pt: Privacy-Aware Multiparty Data Publication.
BTW
Jan Hendrik Nielsen, Daniel Janusz, Jochen Taeschner, Johann-Christoph Freytag
2015 — conf
Selection on Modern CPUs.
IMDM@VLDB
Steffen Zeuch, Johann-Christoph Freytag
2014 B conf
Adapting Tree Structures for Processing with SIMD Instructions.
EDBT
Steffen Zeuch, Johann-Christoph Freytag, Frank Huber
2014 J jnl
Grundlagen und Visionen großer Forschungsfragen im Bereich Big Data.
Inform. Spektrum
Johann-Christoph Freytag
2014 — conf
QTM: Modelling Query Execution with Tasks.
ADMS@VLDB
Steffen Zeuch, Johann-Christoph Freytag
2014 — conf
Query Adaptation and Privacy for Real-Time Business Intelligence - Extended Abstract.
BIRTE
Johann-Christoph Freytag, Rico Bergmann, Lukas Dölle
2014 J jnl
The Stratosphere platform for big data analytics.
VLDB J.
Alexander Alexandrov, Rico Bergmann, Stephan Ewen, Johann-Christoph Freytag, Fabian Hueske, Arvid Heise, Odej Kao, Marcus Leich, Ulf Leser, Volker Markl, Felix Naumann, Mathias Peters, Astrid Rheinländer, Matthias J. Sax, Sebastian Schelter, Mareike Höger, Kostas Tzoumas, Daniel Warneke
2013 J jnl
Editorial.
Datenbank-Spektrum
Johann-Christoph Freytag, Bernhard Mitschang
2013 Misc conf
PeRA: Individual Privacy Control in Intelligent Transportation Systems.
BTW
Martin Kost, Raffael Dzikowski, Johann-Christoph Freytag
2013 A* conf
Peeking into the optimization of data flow programs with MapReduce-style UDFs.
ICDE
Fabian Hueske, Mathias Peters, Aljoscha Krettek, Matthias Ringwald, Kostas Tzoumas, Volker Markl, Johann-Christoph Freytag
2013 J jnl
Towards mega-modeling: a walk through data analysis experiences.
SIGMOD Rec.
Stefano Ceri, Themis Palpanas, Emanuele Della Valle, Dino Pedreschi, Johann-Christoph Freytag, Roberto Trasarti
2012 — conf
Foundations of traversal based query execution over linked data.
HT
Olaf Hartig, Johann-Christoph Freytag
2012 — conf
Privacy Protocol for Linking Distributed Medical Data.
Secure Data Management
Daniel Janusz, Martin Kost, Johann-Christoph Freytag
2009 — conf
Linked Data for Building a Map of Researchers.
SFSW@ESWC
Olaf Hartig, Hannes Mühleisen, Johann-Christoph Freytag
2004 — conf
Data Mining: The Next Generation.
Perspectives Workshop: Data Mining: The Next Generation
Raghu Ramakrishnan, Rakesh Agrawal, Johann-Christoph Freytag, Toni Bollinger, Christopher W. Clifton, Saso Dzeroski, Jochen Hipp, Daniel A. Keim, Stefan Kramer, Hans-Peter Kriegel, Ulf Leser, Bing Liu, Heikki Mannila, Rosa Meo, Shinichi Morishita, Raymond T. Ng, Jian Pei, Prabhakar Raghavan, Myra Spiliopoulou, Jaideep Srivastava, Vicenç Torra
2004 — ed.
Perspectives Workshop: Data Mining: The Next Generation, 11.07. - 16.07.2004
Perspectives Workshop: Data Mining: The Next Generation
Rakesh Agrawal, Johann-Christoph Freytag, Raghu Ramakrishnan
2004 J jnl
Privacy.
Datenbank-Spektrum
Oliver Berthold, Johann-Christoph Freytag