Johann-Christoph Freytag

Publication Activity (10 Years)

Years Active: 2004-2023
Publications (10 Years): 30

Top Topics

High Dimensional Time Series

Query Execution

Top Venues

Proc. VLDB Endow.

Datenbank-Spektrum

Publications

Sedir Mohammed, Kerstin Rubarth, Sophie K. Piper, Fridtjof Schiefenhövel, Johann-Christoph Freytag, Felix Balzer, Sebastian Boie
A statistical method for predicting quantitative variables in association rule mining. Inf. Syst. 118 (2023)
Wolfgang Lehner, Kai-Uwe Sattler, Johann-Christoph Freytag
BTW2021 erstmals als digitale Vortragsreihe. Datenbank-Spektrum 22 (1) (2022)
Fabian Fier, Johann-Christoph Freytag
Parallelizing filter-and-verification based exact set similarity joins on multicores. Inf. Syst. 108 (2022)
Tabea Rettelbach, Moritz Langer, Ingmar Nitze, Benjamin M. Jones, Veit Helm, Johann-Christoph Freytag, Guido Grosse
From Images to Hydrologic Networks - Understanding the Arctic Landscape with Graphs. SSDBM (2022)
Shiva Jahangiri, Michael J. Carey, Johann-Christoph Freytag
Design Trade-offs for a Robust Dynamic Hybrid Hash Join. Proc. VLDB Endow. 15 (10) (2022)
N. Miranda, Johann-Christoph Freytag, J. Nordin, R. Biswas, V. Brinnel, C. Fremling, M. Kowalski, A. Mahabal, S. Reusch, J. van Santen
SNGuess: A method for the selection of young extragalactic transients. CoRR (2022)
Shiva Jahangiri, Michael J. Carey, Johann-Christoph Freytag
Design Trade-offs for a Robust Dynamic Hybrid Hash Join (Extended Version). CoRR (2021)
Tabea Rettelbach, Moritz Langer, Ingmar Nitze, Benjamin M. Jones, Veit Helm, Johann-Christoph Freytag, Guido Grosse
A Quantitative Graph-Based Approach to Monitoring Ice-Wedge Trough Dynamics in Polygonal Permafrost Landscapes. Remote. Sens. 13 (16) (2021)
Gregor Pfalz, Bernhard Diekmann, Johann-Christoph Freytag, Boris K. Biskaborn
Harmonizing heterogeneous multi-proxy data from lake systems. Comput. Geosci. 153 (2021)
Fabian Fier, Johann-Christoph Freytag
Scaling Up Set Similarity Joins Using a Cost-Based Distributed-Parallel Framework. SISAP (2021)
Saliha Irem Besik, Johann-Christoph Freytag
A formal approach to build privacy-awareness into clinical workflows. SICS Softw.-Intensive Cyber Phys. Syst. 35 (1-2) (2020)
Saliha Irem Besik, Johann-Christoph Freytag
Managing Consent in Workflows under GDPR. ZEUS (2020)
Primal Pappachan, Roberto Yus, Sharad Mehrotra, Johann-Christoph Freytag
Sieve: A Middleware Approach to Scalable Access Control for Database Management Systems. CoRR (2020)
Primal Pappachan, Roberto Yus, Sharad Mehrotra, Johann-Christoph Freytag
Sieve: A Middleware Approach to Scalable Access Control for Database Management Systems. Proc. VLDB Endow. 13 (11) (2020)
Fabian Fier, Tianzheng Wang, Erkang Zhu, Johann-Christoph Freytag
Parallelizing Filter-Verification Based Exact Set Similarity Joins on Multicores. SISAP (2020)
Saliha Irem Besik, Johann-Christoph Freytag
Ontology-Based Privacy Compliance Checking for Clinical Workflows. LWDA (2019)
Stephan Kessler, Jens Hoff, Johann-Christoph Freytag
SAP HANA goes private - From Privacy Research to Privacy Aware Enterprise Analytics. Proc. VLDB Endow. 12 (12) (2019)
Fabian Fier, Nikolaus Augsten, Panagiotis Bouros, Ulf Leser, Johann-Christoph Freytag
Set Similarity Joins on MapReduce: An Experimental Survey. Proc. VLDB Endow. 11 (10) (2018)
Jörg P. Bachmann, Johann-Christoph Freytag
Efficient Measuring of Congruence on High Dimensional Time Series. CoRR (2018)
Jörg P. Bachmann, Johann-Christoph Freytag, Benjamin Hauskeller, Nicole Schweikardt
Measuring Congruence on High Dimensional Time Series. CoRR (2018)
Jörg P. Bachmann, Johann-Christoph Freytag
High Dimensional Time Series Generators. CoRR (2018)
Matthias J. Sax, Guozhang Wang, Matthias Weidlich, Johann-Christoph Freytag
Streams and Tables: Two Sides of the Same Coin. BIRTE (2018)
Jörg P. Bachmann, Johann-Christoph Freytag
An Analytical Approach to Improving Time Warping on Multidimensional Time Series. CoRR (2018)
Jörg P. Bachmann, Johann-Christoph Freytag
Dynamic Time Warping and the (Windowed) Dog-Keeper Distance. SISAP (2017)
Olaf Hartig, Maria-Esther Vidal, Johann-Christoph Freytag
Federated Semantic Data Management (Dagstuhl Seminar 17262). Dagstuhl Reports 7 (6) (2017)
Johann-Christoph Freytag, Erik Buchmann, Theo Härder
Editorial. Datenbank-Spektrum 16 (2) (2016)
Fabian Fier, Eva Höfer, Johann-Christoph Freytag
MapReduce Frameworks: Comparing Hadoop and HPCC. LWDA (2016)
Steffen Zeuch, Holger Pirk, Johann-Christoph Freytag
Non-Invasive Progressive Optimization for In-Memory Databases. Proc. VLDB Endow. 9 (14) (2016)
Steffen Zeuch, Johann-Christoph Freytag
Selection on Modern CPUs. IMDM@VLDB (2015)
Jan Hendrik Nielsen, Daniel Janusz, Jochen Taeschner, Johann-Christoph Freytag
D2Pt: Privacy-Aware Multiparty Data Publication. BTW (2015)
Steffen Zeuch, Johann-Christoph Freytag, Frank Huber
Adapting Tree Structures for Processing with SIMD Instructions. EDBT (2014)
Steffen Zeuch, Johann-Christoph Freytag
QTM: Modelling Query Execution with Tasks. ADMS@VLDB (2014)
Johann-Christoph Freytag, Rico Bergmann, Lukas Dölle
Query Adaptation and Privacy for Real-Time Business Intelligence - Extended Abstract. BIRTE (2014)
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
The Stratosphere platform for big data analytics. VLDB J. 23 (6) (2014)
Johann-Christoph Freytag
Grundlagen und Visionen großer Forschungsfragen im Bereich Big Data. Inform. Spektrum 37 (2) (2014)
Martin Kost, Raffael Dzikowski, Johann-Christoph Freytag
PeRA: Individual Privacy Control in Intelligent Transportation Systems. BTW (2013)
Fabian Hueske, Mathias Peters, Aljoscha Krettek, Matthias Ringwald, Kostas Tzoumas, Volker Markl, Johann-Christoph Freytag
Peeking into the optimization of data flow programs with MapReduce-style UDFs. ICDE (2013)
Johann-Christoph Freytag, Bernhard Mitschang
Editorial. Datenbank-Spektrum 13 (2) (2013)
Stefano Ceri, Themis Palpanas, Emanuele Della Valle, Dino Pedreschi, Johann-Christoph Freytag, Roberto Trasarti
Towards mega-modeling: a walk through data analysis experiences. SIGMOD Rec. 42 (3) (2013)
Olaf Hartig, Johann-Christoph Freytag
Foundations of traversal based query execution over linked data. HT (2012)
Daniel Janusz, Martin Kost, Johann-Christoph Freytag
Privacy Protocol for Linking Distributed Medical Data. Secure Data Management (2012)
Olaf Hartig, Hannes Mühleisen, Johann-Christoph Freytag
Linked Data for Building a Map of Researchers. SFSW@ESWC (2009)
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
Data Mining: The Next Generation. Perspectives Workshop: Data Mining: The Next Generation (2004)
Oliver Berthold, Johann-Christoph Freytag
Privacy. Datenbank-Spektrum 11 (11) (2004)