Woltmann, L.; Thiessat, J.; Hartmann, C.; Habich, D.; Lehner, W.
In Proceedings of the VLDB Endowment.VLDB 2023PVLDB,3310-3322,2023.Links: PDF.
@inproceedings{,
author = {Lucas Woltmann and Jerome Thiessat and Claudio Hartmann and Dirk Habich and Wolfgang Lehner},
title = {FASTgres: Making Learned Query Optimizer Hinting Effective},
booktitle = {Proceedings of the VLDB Endowment},
volume = {16},
year = {2023},
month = {8},
pages = {3310--3322},
url = {https://doi.org/10.14778/3611479.3611528},
publisher = {PVLDB}
}
Woltmann, L.; Damme, P.; Hartmann, C.; Habich, D.; Lehner, W.
In Proceedings of the 26th International Conference on Extending Database Technology (EDBT 2023).EDBT 20232023.Links: PDF.
@inproceedings{,
author = {Lucas Woltmann and Patrick Damme and Claudio Hartmann and Dirk Habich and Wolfgang Lehner},
title = {Learned Selection Strategy for Lightweight Integer Compression Algorithms},
booktitle = {Proceedings of the 26th International Conference on Extending Database Technology (EDBT 2023)},
year = {2023},
month = {3},
url = {https://dx.doi.org/10.48786/edbt.2023.47}
}
Bergmann, R.; Hertzschuch, A.; Hartmann, C.; Habich, D.; Lehner, W.
BTW'23, Dresden.Gesellschaft für Informatik, e.V.,2023.Links: https://dl.gi.de/handle/20.500.12116/40318.
@inproceedings{,
author = {Rico Bergmann and Axel Hertzschuch and Claudio Hartmann and Dirk Habich and Wolfgang Lehner},
title = {PostBOUND: PostgreSQL with Upper Bound SPJ Query Optimization},
year = {2023},
month = {03},
location = {Dresden},
numpages = {22},
url = {https://doi.org/10.18420/BTW2023-14},
publisher = {Gesellschaft f\"{u}r Informatik, e.V.}
}
Thiessat, J.; Woltmann, L.; Hartmann, C.; Habich, D.
BTW 2023Gesellschaft für Informatik e.V.,1075-1081,2023.Links: https://doi.org/10.18420/BTW2023-74.
@incollection{,
author = {Jerome Thiessat and Lucas Woltmann and Claudio Hartmann and Dirk Habich},
title = {Optimizing Query Processing in PostgreSQL Through Learned Optimizer Hints},
series = {Lecture Notes in Informatics (LNI)},
volume = {P-331},
year = {2023},
month = {3},
pages = {1075--1081},
url = {https://doi.org/10.18420/BTW2023-74},
publisher = {Gesellschaft f\"{u}r Informatik e.V.}
}
Woltmann, L.; Ferger, K.; Hartmann, C.; Lehner, W.
In BTW 2023.2023.Links: https://dl.gi.de/handle/20.500.12116/40340.
@inproceedings{,
author = {Lucas Woltmann and Katja Ferger and Claudio Hartmann and Wolfgang Lehner},
title = {JumpXClass: Explainable AI for Jump Classification in Trampoline Sports},
booktitle = {BTW 2023},
year = {2023},
month = {3}
}
Woltmann, L.; Hartmann, C.; Lehner, W.; Rausch, P.; Ferger, K.
In German Journal of Exercise and Sport Research.Springer,2022.Links: https://doi.org/10.1007/s12662-022-00866-3.
@article{,
author = {Lucas Woltmann and Claudio Hartmann and Wolfgang Lehner and Paul Rausch and Katja Ferger},
title = {Sensor-based jump detection and classification with machine learning in trampoline gymnastics},
journal = {German Journal of Exercise and Sport Research},
year = {2022},
month = {12},
url = {https://doi.org/10.1007/s12662-022-00866-3},
publisher = {Springer}
}
Woltmann, L.; Ferger, K.; Hartmann, C.; Lehner, W.
In spinfortec2022 : Tagungsband zum 14. Symposium der Sektion Sportinformatik und Sporttechnologie der Deutschen Vereinigung für Sportwissenschaft (dvs).spinfortec22, Chemnitz.2022.Links: https://nbn-resolving.org/urn:nbn:de:bsz:ch1-qucosa2-807539.
@conference{,
author = {Lucas Woltmann and Katja Ferger and Claudio Hartmann and Wolfgang Lehner},
title = {Exercise assessment in trampoline sport by automated jump classification},
booktitle = {spinfortec2022 : Tagungsband zum 14. Symposium der Sektion Sportinformatik und Sporttechnologie der Deutschen Vereinigung f\"{u}r Sportwissenschaft (dvs)},
year = {2022},
month = {10},
location = {Chemnitz},
url = {https://nbn-resolving.org/urn:nbn:de:bsz:ch1-qucosa2-807539}
}
Hertzschuch, A.; Hartmann, C.; Habich, D.; Lehner, W.
VLDB Endowment,2022.
@conference{,
author = {Axel Hertzschuch and Claudio Hartmann and Dirk Habich and Wolfgang Lehner},
title = {Turbo-Charging SPJ Query Plans with Learned Physical Join Operator Selections},
year = {2022},
month = {9},
isbn = {978-1-4503-8343-1/21/06},
numpages = {13},
url = {https://vldb.org/pvldb/vol15/p2706-hertzschuch.pdf},
publisher = {VLDB Endowment}
}
Woltmann, L.; Drechsel, J.; Hartmann, C.; Lehner, W.
In 2022 IEEE 38th International Conference on Data Engineering Workshops (ICDEW).ICDE '222022.Links: https://ieeexplore.ieee.org/abstract/document/9814582.
@inproceedings{,
author = {Lucas Woltmann and Jonathan Drechsel and Claudio Hartmann and Wolfgang Lehner},
title = {Ingredient-based Forecast of Sold Dish Portions in Campus Canteen Kitchens},
booktitle = {2022 IEEE 38th International Conference on Data Engineering Workshops (ICDEW)},
year = {2022},
month = {05},
url = {https://doi.org/10.1109/ICDEW55742.2022.00023}
}
Woltmann, L.; Hartmann, C.; Habich, D.; Lehner, W.
In Datenbank Spektrum.Springer Berlin Heidelberg,1-13,2022.Links: https://link.springer.com/article/10.1007/s13222-021-00400-z.
@article{,
author = {Lucas Woltmann and Claudio Hartmann and Dirk Habich and Wolfgang Lehner},
title = {Aggregate-based Training Phase for ML-based Cardinality Estimation},
journal = {Datenbank Spektrum},
volume = {22/1},
year = {2022},
month = {01},
pages = {1--13},
url = {https://doi.org/10.1007/s13222-021-00400-z},
publisher = {Springer Berlin Heidelberg}
}
Woltmann, L.; Hartmann, C.; Lehner, W.
In Datenbank Spektrum.Springer Nature,1-6,2021.Links: https://link.springer.com/article/10.1007/s13222-021-00398-4.
@article{,
author = {Lucas Woltmann and Claudio Hartmann and Wolfgang Lehner},
title = {Data Science Meets High-Tech Manufacturing \&\#8211; The BTW 2021 Data Science Challenge},
journal = {Datenbank Spektrum},
volume = {22},
year = {2021},
month = {12},
pages = {1--6},
numpages = {6},
url = {https://doi.org/10.1007/s13222-021-00398-4},
publisher = {Springer Nature}
}
Woltmann, L.; Hartmann, C.; Habich, D.; Lehner, W.
In Lecture Notes in Informatics.BTW'21Gesellschaft für Informatik,2021.Links: https://dl.gi.de/handle/20.500.12116/35812.
@inproceedings{,
author = {Lucas Woltmann and Claudio Hartmann and Dirk Habich and Wolfgang Lehner},
title = {Aggregate-based Training Phase for ML-based Cardinality Estimation},
booktitle = {Lecture Notes in Informatics},
year = {2021},
month = {09},
url = {https://dx.doi.org/10.18420/btw2021-07},
publisher = {Gesellschaft f\"{u}r Informatik}
}
Woltmann, L.; Hartmann, C.; Habich, D.; Lehner, W.
In Proceedings of the VLDB Endowment.In Proc. VLDB Endow.VLDB 2021VLDB Endowment,2715-2718,2021.Links: PDF.
@inproceedings{,
author = {Lucas Woltmann and Claudio Hartmann and Dirk Habich and Wolfgang Lehner},
title = {PostCENN: PostgreSQL with Machine Learning Models for Cardinality Estimation},
booktitle = {Proceedings of the VLDB Endowment},
journal = {Proc. VLDB Endow.},
volume = {14},
year = {2021},
month = {08},
pages = {2715--2718},
numpages = {4},
url = {https://doi.org/10.14778/3476311.3476327},
publisher = {VLDB Endowment}
}
@inproceedings{,
author = {Axel Hertzschuch and Claudio Hartmann and Dirk Habich and Wolfgang Lehner},
title = {Simplicity Done Right for Join Ordering},
year = {2021},
month = {1},
url = {http://cidrdb.org/cidr2021/papers/cidr2021_paper01.pdf}
}
Woltmann, L.; Hartmann, C.; Habich, D.; Lehner, W.
In Proceedings of the Second International Workshop on Exploiting Artificial Intelligence Techniques for Data Management.SIGMOD aiDM '202020.Links: https://doi.org/10.1145/3401071.3401658.
@inproceedings{,
author = {Lucas Woltmann and Claudio Hartmann and Dirk Habich and Wolfgang Lehner},
title = {Best of both worlds: combining traditional and machine learning models for cardinality estimation},
booktitle = {Proceedings of the Second International Workshop on Exploiting Artificial Intelligence Techniques for Data Management},
year = {2020},
month = {6},
url = {https://doi.org/10.1145/3401071.3401658}
}
Hartmann, C.; Kegel, L.; Lehner, W.
In it - Information Technology.2020.
@article{,
author = {Claudio Hartmann and Lars Kegel and Wolfgang Lehner},
title = {Feature-aware forecasting of large-scale time series data sets},
journal = {it - Information Technology},
year = {2020},
month = {6},
url = {https://doi.org/10.1515/itit-2019-0035}
}
Woltmann, L.; Hartmann, C.; Lehner, W.
In Datenbank-Spektrum.Springer Berlin Heidelberg,(S. 165-182),2019.Links: https://link.springer.com/article/10.1007/s13222-019-00322-x.
@article{,
author = {Lucas Woltmann and Claudio Hartmann and Wolfgang Lehner},
title = {Particulate Matter Matters \&\#8211; The Data Science Challenge @ BTW 2019},
journal = {Datenbank-Spektrum},
volume = {19},
year = {2019},
month = {08},
pages = {(S. 165-182)},
url = {https://doi.org/10.1007/s13222-019-00322-x},
publisher = {Springer Berlin Heidelberg}
}
Woltmann, L.; Hartmann, C.; Thiele, M.; Habich, D.; Lehner, W.
In Proceedings of the Second International Workshop on Exploiting Artificial Intelligence Techniques for Data Management.SIGMOD aiDM '192019.Links: https://dl.acm.org/citation.cfm?id=3329875.
@inproceedings{,
author = {Lucas Woltmann and Claudio Hartmann and Maik Thiele and Dirk Habich and Wolfgang Lehner},
title = {Cardinality estimation with local deep learning models},
booktitle = {Proceedings of the Second International Workshop on Exploiting Artificial Intelligence Techniques for Data Management},
year = {2019},
month = {7},
url = {https://doi.org/10.1145/3329859.3329875},
acmid = {3329875}
}
Woltmann, L.; Hartmann, C.; Lehner, W.
In BTW 2019 – Workshopband.Gesellschaft für Informatik,(S. 287-296),2019.Links: https://dl.gi.de/handle/20.500.12116/21599.
@inproceedings{,
author = {Lucas Woltmann and Claudio Hartmann and Wolfgang Lehner},
title = {Assessing the Impact of Driving Bans with Data Analysis},
booktitle = {BTW 2019 – Workshopband.},
year = {2019},
month = {3},
isbn = {978-3-88579-684-8},
location = {Bonn},
pages = {(S. 287-296)},
url = {https://dx.doi.org/10.18420/btw2019-ws-31},
publisher = {Gesellschaft f\"{u}r Informatik}
}
Hahmann, M.; Hartmann, C.; Kegel, L.; Lehner, W.
In Datenbank-Spektrum.2019.Links: Download.
@article{,
author = {Martin Hahmann and Claudio Hartmann and Lars Kegel and Wolfgang Lehner},
title = {Large-Scale Time Series Analytics \&\#8211; Novel Approaches for Generation and Prediction},
journal = {Datenbank-Spektrum},
year = {2019},
month = {1},
url = {https://doi.org/10.1007/s13222-018-00304-5}
}
Hartmann, C.; Hahmann, M.; Habich, D.; Lehner, W.
In International Journal of Data Science and Analytics.2019.
@article{,
author = {Claudio Hartmann and Martin Hahmann and Dirk Habich and Wolfgang Lehner},
title = {CSAR: the cross-sectional autoregression model for short and long-range forecasting},
journal = {International Journal of Data Science and Analytics},
year = {2019},
month = {1},
url = {https://doi.org/10.1007/s41060-018-00169-7}
}
Hartmann, C.; Hahmann, M.; Habich, D.; Lehner, W.
In 4th IEEE International Conference on Data Science and Advanced Analytics.DSAA'17, Tokyo, Japan.2017.
@proceedings{,
author = {Claudio Hartmann and Martin Hahmann and Dirk Habich and Wolfgang Lehner},
title = {CSAR: The Cross-sectional Autoregression Model},
booktitle = {4th IEEE International Conference on Data Science and Advanced Analytics},
year = {2017},
month = {10},
location = {Tokyo, Japan}
}
Ulbricht, R.; Donker, H.; Hartmann, C.; Hahmann, M.; Lehner, W.
In J. Data and Information Quality.2016.
@article{,
author = {Robert Ulbricht and Hilko Donker and Claudio Hartmann and Martin Hahmann and Wolfgang Lehner},
title = {Challenges for Context-Driven Time Series Forecasting},
journal = {J. Data and Information Quality},
volume = {7},
year = {2016},
url = {http://doi.acm.org/10.1145/2896822}
}
Hahmann, M.; Hartmann, C.; Kegel, L.; Habich, D.; Lehner, W.
In it - Information Technology.176-185,2016.
@article{,
author = {Martin Hahmann and Claudio Hartmann and Lars Kegel and Dirk Habich and Wolfgang Lehner},
title = {Big by blocks: modular analytics},
journal = {it - Information Technology},
volume = {58},
year = {2016},
pages = {176--185},
url = {http://dx.doi.org/10.1515/itit-2016-0003}
}
Ulbricht, R.; Hartmann, C.; Hahmann, M.; Donker, H.; Lehner, W.
In Proceedings of the 2016 International Conference on Management of Data, SIGMOD Conference 2016, San Francisco, CA, USA, June 26 - July 01, 2016.özcan, Fatma; Koutrika, Georgia & Madden, Sam,2169-2172,2016.
@article{,
author = {Robert Ulbricht and Claudio Hartmann and Martin Hahmann and Hilko Donker and Wolfgang Lehner},
title = {Web-based Benchmarks for Forecasting Systems: The ECAST Platform},
booktitle = {Proceedings of the 2016 International Conference on Management of Data, SIGMOD Conference 2016, San Francisco, CA, USA, June 26 - July 01, 2016},
year = {2016},
isbn = {978-1-4503-3531-7},
pages = {2169--2172},
url = {http://doi.acm.org/10.1145/2882903.2899399},
publisher = {\"{o}zcan, Fatma; Koutrika, Georgia \& Madden, Sam}
}
Hartmann, C.; Hahmann, M.; Rosenthal, F.; Lehner, W.
In 2015 IEEE International Conference on Data Science and Advanced Analytics, DSAA 2015, Campus des Cordeliers, Paris, France, October 19-21, 2015.2015.
@proceedings{,
author = {Claudio Hartmann and Martin Hahmann and Frank Rosenthal and Wolfgang Lehner},
title = {Exploiting big data in time series forecasting: A cross-sectional approach},
booktitle = {2015 IEEE International Conference on Data Science and Advanced Analytics, DSAA 2015, Campus des Cordeliers, Paris, France, October 19-21, 2015},
year = {2015},
month = {10},
isbn = {978-1-4673-8272-4},
url = {http://dx.doi.org/10.1109/DSAA.2015.7344786}
}
Hartmann, C.; Rosenthal, F.; Hahmann, M.; Kirsche, T.; Lehner, W.
In 50. Kongress der Deutschen Marktforschung (BVM-Kongress 2015, Berlin, Germany).2015.
@article{,
author = {Claudio Hartmann and Frank Rosenthal and Martin Hahmann and Thomas Kirsche and Wolfgang Lehner},
title = {Aktuellen Zust\"{a}nden von M\"{a}rkten auf der Spur: Analyseinstrumente zur Erfassung dynamischer Marktdaten},
booktitle = {50. Kongress der Deutschen Marktforschung (BVM-Kongress 2015, Berlin, Germany)},
year = {2015}
}
Fischer, U.; Schildt, C.; Hartmann, C.; Lehner, W.
In 29th IEEE International Conference on Data Engineering, ICDE 2013, Brisbane, Australia, April 8-12, 2013.Jensen, Christian S.; Jermaine, Christopher M. & Zhou, Xiaofang,853-864,2013.
@article{,
author = {Ulrike Fischer and Christopher Schildt and Claudio Hartmann and Wolfgang Lehner},
title = {Forecasting the data cube: A model configuration advisor for multi-dimensional data sets},
booktitle = {29th IEEE International Conference on Data Engineering, ICDE 2013, Brisbane, Australia, April 8-12, 2013},
year = {2013},
isbn = {978-1-4673-4909-3},
pages = {853--864},
url = {http://dx.doi.org/10.1109/ICDE.2013.6544880},
publisher = {Jensen, Christian S.; Jermaine, Christopher M. \& Zhou, Xiaofang}
}
Merkmalsauswahl zur Optimierung von Prognoseprozessen auf Verkaufsdaten
Marcel Spranger May 1st, 2014 until October 31st, 2014
Supervision: Claudio Hartmann
Lastgesteuerte Modellwartung für Prognoseanfragen
Lars Kegel July 1st, 2014 until March 31st, 2015
Supervision: Claudio Hartmann
Erweiterungen zur Langzeitprognose für das Cross-sectional Forecasting Modell
Franziska Ressel January 1st, 2016 until January 1st, 2016
Supervision: Claudio Hartmann
Reinforcement Learning for Wind Turbine Load Control
Nico Westerbeck October 28th, 2021 until February 20th, 2022
Supervision: Julius Gonsior, Claudio Hartmann, Wolfgang Lehner
Extraction of website topologies with the aid of machine learning
Jessica Schulze December 5th, 2022 until May 17th, 2023
Supervision: Andreas Geyer, Claudio Hartmann, Dirk Habich
Systematic Analysis of Impact of Aggregation on Time Series Forecasting
Sachin Vittal January 1st, 2014 until June 3rd, 2015
Supervision: Robert Ulbricht, Claudio Hartmann, Wolfgang Lehner
Modellbasierte Kompression von Zeitreihendaten
Anton Kling June 20th, 2016 until November 29th, 2016
Supervision: Martin Hahmann
Retrieval of Formulas from ARQMath Challenge Dataset using Joint Embedings
Vidya Chandrashekar July 12th, 2021 until December 20th, 2021
Supervision: Wolfgang Lehner
Applicability and Parameterization of Machine Learning Approaches for Time Series Modeling
Onur Ekici January 1st, 2014 until May 7th, 2014
Supervision: Claudio Hartmann
Merkmalsauswahl zur Optimierung von Prognoseprozessen
Tom Fels July 1st, 2015 until September 23rd, 2015
Supervision: Robert Ulbricht, Claudio Hartmann, Wolfgang Lehner
Verteilungsbasierte Parameterbestimmung für AR Modelle
Gregor Josef Feucht July 11th, 2016 until September 22nd, 2016
Supervision: Claudio Hartmann, Martin Hahmann
Implementation and comparison of active learning query strategies
Julius Boßmann June 25th, 2021 until September 10th, 2021
Supervision: Julius Gonsior, Claudio Hartmann, Wolfgang Lehner
Applying ColBERT to ARQMath 2020
Robin Klein July 7th, 2021 until September 22nd, 2021
Supervision: Anja Reusch, Claudio Hartmann, Wolfgang Lehner
Feature-Engineering for Generation of Taxonomy from large text corpora using machine Learning
Aris Krasniqi October 7th, 2021 until December 23rd, 2021
Supervision: Julius Gonsior, Claudio Hartmann, Wolfgang Lehner
Development of a BERT-Architecture based domain-sensitive semantic search
Tim Rieß November 15th, 2021 until January 31st, 2021
Supervision: Julius Gonsior, Claudio Hartmann, Wolfgang Lehner
Evaluation of Methods for Generating Synthetic Texts to improve Text Classification Tasks
Duy Nhu December 13th, 2021 until February 28th, 2022
Supervision: Julius Gonsior, Claudio Hartmann, Wolfgang Lehner
Evaluation of Active Learning Strategies for Transformer-Architecture based Language Models
Ada Güney Arslan February 17th, 2022 until April 4th, 2022
Supervision: Julius Gonsior, Claudio Hartmann, Wolfgang Lehner
Active Learning-based Evaluation of Uncertainty Measures for Transformer-based Language Models
Silvio Magino May 13th, 2022 until July 29th, 2022
Supervision: Julius Gonsior, Claudio Hartmann, Wolfgang Lehner
Evaluation of Transformer-based Language Models for Classification of Issue-Tracking-Records
Johan Bläsche June 3rd, 2022 until September 9th, 2022
Supervision: Julius Gonsior, Claudio Hartmann, Wolfgang Lehner
Evaluation of Classification Probability Calculation Measures for Transformer-based Language Models using Active Learning
Christian Falkenberg June 8th, 2022 until August 24th, 2022
Supervision: Julius Gonsior, Claudio Hartmann, Wolfgang Lehner
Vergleichende Implementation der Forecasting Blox für Spark und SystemML
Johannes Wilke February 1st, 2016 until July 22nd, 2016
Supervision: Claudio Hartmann
Erweiterungen zur Langzeitprognose für das Cross-sectional Forecasting Modell
Franziska Ressel March 1st, 2016 until September 7th, 2016
Supervision: Claudio Hartmann
Analyse eines Forschungsthemas: Instanziierung von Cross-sectional Forecastingmodellen
Franziska Ressel October 1st, 2016 until February 2nd, 2017
Supervision: Claudio Hartmann
Implementierung des Backends der aufgezeichneten Webseiten-Topographie in einer Graphdatenbank und Speicherung von Screenshots
Beleg Jessica September 8th, 2021 until March 7th, 2022
Supervision: Julius Gonsior, Claudio Hartmann, Wolfgang Lehner