Zarubin, M.; Kissinger, T.; Habich, D.; Willhalm, T.; Lehner, W.
In The VLDB Journal.2019.
@article{,
author = {Mikhail Zarubin and Thomas Kissinger and Dirk Habich and Thomas Willhalm and Wolfgang Lehner},
title = {Efficient Compute Node-Local Replication Mechanisms for NVRAM-Centric Data Structures},
journal = {The VLDB Journal},
year = {2019},
month = {7},
numpages = {21},
url = {10.1007/s00778-019-00549-w}
}
Zarubin, M.; Damme, P.; Kissinger, T.; Habich, D.; Willhalm, T.; Lehner, W.
In Proceedings of the 15th International Workshop on Data Management on New Hardware.DAMON '19, Amsterdam, Netherlands.ACM,2019.
@inproceedings{,
author = {Mikhail Zarubin and Patrick Damme and Thomas Kissinger and Dirk Habich and Thomas Willhalm and Wolfgang Lehner},
title = {Integer Compression in NVRAM-centric Data Stores \&\#8211; Comparative Experimental Analysis to DRAM},
booktitle = {Proceedings of the 15th International Workshop on Data Management on New Hardware},
year = {2019},
month = {7},
isbn = {978-1-4503-6801-8},
location = {Amsterdam, Netherlands},
numpages = {11},
url = {http://doi.acm.org/10.1145/3329785.3329923},
acmid = {3329923},
publisher = {ACM},
address = {New York, NY, USA},
keywords = {analysis, data compression, database systems, in-memory, nvram}
}
Zarubin, M.; Kissinger, T.; Habich, D.; Lehner, W.
In Proceedings of the 14th International Workshop on Data Management on New Hardware.DAMON'18, Houston, TX, USA .ACM,2018.
@proceedings{,
author = {Mikhail Zarubin and Thomas Kissinger and Dirk Habich and Wolfgang Lehner},
title = {Efficient Compute Node-Local Replication Mechanisms for NVRAM-Centric Data Structures},
booktitle = {Proceedings of the 14th International Workshop on Data Management on New Hardware},
year = {2018},
month = {06},
isbn = {ISBN 978-1-4503-5853-8},
location = {Houston, TX, USA },
numpages = {9},
url = {http://doi.acm.org/10.1145/3211922.3211931},
acmid = {3211931},
publisher = {ACM},
keywords = {nvram, replication, in-memory, database, data strcutures}
}
Kissinger, T.; Habich, D.; Lehner, W.
In International Conference on Management of Data.SIGMOD 2018ACM,2018.
@inproceedings{,
author = {Thomas Kissinger and Dirk Habich and Wolfgang Lehner},
title = {Adaptive Energy-Control for In-Memory Database Systems},
booktitle = {International Conference on Management of Data},
year = {2018},
month = {6},
isbn = {978-1-4503-4703-7},
url = {https://doi.org/10.1145/3183713.3183756},
acmid = {3183756},
publisher = {ACM},
address = {New York, NY, USA}
}
Kissinger, T.; Hähnel, M.; Smejkal, T.; Habich, D.; Härtig, H.; Lehner, W.
To appear in International Conference on Management of Data.SIGMOD 20182018.
@inproceedings{,
author = {Thomas Kissinger and Marcus H\"{a}hnel and Till Smejkal and Dirk Habich and Hermann H\"{a}rtig and Wolfgang Lehner},
title = {Energy-Utility Function-Based Resource Control for In-Memory Database Systems LIVE},
booktitle = {International Conference on Management of Data},
year = {2018},
month = {6}
}
Krause, A.; Kissinger, T.; Ungethüm, A.; Habich, D.; Lehner, W.
In New Trends in Databases and Information Systems - ADBIS 2017 Short Papers and Workshops.ADBISSpringer,45-53,2017.Links: https://link.springer.com/chapter/10.1007%2F978-3-319-67162-8_6.
@inproceedings{,
author = {Alexander Krause and Thomas Kissinger and Annett Ungeth\"{u}m and Dirk Habich and Wolfgang Lehner},
title = {Asynchronous Graph Pattern Matching on Multiprocessor Systems},
booktitle = {New Trends in Databases and Information Systems - ADBIS 2017 Short Papers and Workshops},
year = {2017},
month = {9},
isbn = {978-3-319-67161-1},
pages = {45--53},
numpages = {8},
url = {10.1007/978-3-319-67162-8_6},
publisher = {Springer}
}
Dreseler, M.; Kissinger, T.; Djürken, T.; Lübke, E.; Uflacker, M.; Habich, D.; Plattner, H.; Lehner, W.
In International Workshop on Accelerating Data Management Systems Using Modern Processor and Storage Architectures 2017.ADMS 20172017.
@inproceedings{,
author = {Markus Dreseler and Thomas Kissinger and Timo Dj\"{u}rken and Eric L\"{u}bke and Matthias Uflacker and Dirk Habich and Hasso Plattner and Wolfgang Lehner},
title = {Hardware-Accelerated Memory Operations on Large-Scale NUMA Systems},
booktitle = {International Workshop on Accelerating Data Management Systems Using Modern Processor and Storage Architectures 2017},
year = {2017},
month = {9}
}
Krause, A.; Kissinger, T.; Habich, D.; Voigt, H.; Lehner, W.
To appear in Euro-Par 2017: Parallel Processing - 23rd International Conference on Parallel and Distributed Computing.Euro-Par, Santiago de Compostela.Springer, 149-163,2017.
@{,
author = {Alexander Krause and Thomas Kissinger and Dirk Habich and Hannes Voigt and Wolfgang Lehner},
title = {Partitioning Strategy Selection for In-Memory Graph Pattern Matching on Multiprocessor Systems},
booktitle = {Euro-Par 2017: Parallel Processing - 23rd International Conference on Parallel and Distributed Computing},
series = {Lecture Notes in Computer Science},
year = {2017},
month = {8},
isbn = {978-3-319-64202-4},
location = {Santiago de Compostela},
pages = { 149-163},
numpages = {14},
publisher = {Springer}
}
Lehner, W.; Habich, D.; Kissinger, T.; Ungethüm, A.
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,2173-2176,2016.
@article{,
author = {Wolfgang Lehner and Dirk Habich and Thomas Kissinger and Annett Ungeth\"{u}m},
title = {Energy Elasticity on Heterogeneous Hardware using Adaptive Resource Reconfiguration LIVE},
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 = {2173--2176},
url = {http://doi.acm.org/10.1145/2882903.2899390},
publisher = {\"{o}zcan, Fatma; Koutrika, Georgia \& Madden, Sam}
}
Habich, D.; Luong, J.; Kissinger, T.; Lehner, W.
In Proceedings of the LWA 2015 Workshops: KDML, FGWM, IR, and FGDB, Trier, Germany, October 7-9, 2015.Bergmann, Ralph; Görg, Sebastian & Müller, Gilbert,391-402,2015.
@article{,
author = {Dirk Habich and Johannes Luong and Thomas Kissinger and Wolfgang Lehner},
title = {Towards Programmability of a NUMA-Aware Storage Engine},
booktitle = {Proceedings of the LWA 2015 Workshops: KDML, FGWM, IR, and FGDB, Trier, Germany, October 7-9, 2015.},
series = {CEUR Workshop Proceedings},
volume = {1458},
year = {2015},
pages = {391--402},
url = {http://ceur-ws.org/Vol-1458/H01_CRC78_Habich.pdf},
publisher = {Bergmann, Ralph; G\"{o}rg, Sebastian \& M\"{u}ller, Gilbert}
}
Lehner, W.; Habich, D.; Kissinger, T.
In Datenbanksysteme für Business, Technologie und Web (BTW), 16. Fachtagung des GI-Fachbereichs Datenbanken und Informationssysteme" (DBIS).363-382,2015.
@article{,
author = {Wolfgang Lehner and Dirk Habich and Thomas Kissinger},
title = {Plan Operator Specialization using Reflective Compiler Techniques},
booktitle = {Datenbanksysteme f\"{u}r Business, Technologie und Web (BTW), 16. Fachtagung des GI-Fachbereichs Datenbanken und Informationssysteme"' (DBIS)},
volume = {241},
year = {2015},
isbn = {978-3-88579-635-0},
pages = {363--382},
url = {http://subs.emis.de/LNI/Proceedings/Proceedings241/article8.html}
}
Oukid, I.; Lehner, W.; Kissinger, T.; Willhalm, T.; Bumbulis, P.
In CIDR 2015, Seventh Biennial Conference on Innovative Data Systems Research, Asilomar, CA, USA, January 4-7, 2015. Online Proceedings.2015.
@article{,
author = {Ismail Oukid and Wolfgang Lehner and Thomas Kissinger and Thomas Willhalm and Peter Bumbulis},
title = {Instant Recovery for Main Memory Databases},
booktitle = {CIDR 2015, Seventh Biennial Conference on Innovative Data Systems Research, Asilomar, CA, USA, January 4-7, 2015. Online Proceedings},
year = {2015},
url = {http://www.cidrdb.org/cidr2015/Papers/CIDR15_Paper13.pdf}
}
Kolditz, T.; Kissinger, T.; Schlegel, B.; Habich, D.; Lehner, W.
In Proceedings of the Tenth International Workshop on Data Management on New Hardware.ACM,5:1-5:9,2014.
@article{,
author = {Till Kolditz and Thomas Kissinger and Benjamin Schlegel and Dirk Habich and Wolfgang Lehner},
title = {Online bit flip detection for in-memory B-trees on unreliable hardware},
booktitle = {Proceedings of the Tenth International Workshop on Data Management on New Hardware},
series = {DaMoN '14},
year = {2014},
month = {6},
isbn = {978-1-4503-2971-2},
location = {Snowbird, Utah},
pages = {5},
numpages = {9},
url = {http://doi.acm.org/10.1145/2619228.2619233},
acmid = {2619233},
publisher = {ACM},
address = {New York, NY, USA}
}
Arnold, O.; Haas, S.; Fettweis, G.; Schlegel, B.; Kissinger, T.; Karnagel, T.; Lehner, W.
In International Workshop on Accelerating Data Management Systems Using Modern Processor and Storage Architectures - ADMS 2014, Hangzhou, China, September 1, 2014.Bordawekar, Rajesh; Lahiri, Tirthankar; Gedik, Bugra & Lang, Christian A.,25-33,2014.
@article{,
author = {Oliver Arnold and Sebastian Haas and Gerhard Fettweis and Benjamin Schlegel and Thomas Kissinger and Tomas Karnagel and Wolfgang Lehner},
title = {HASHI: An Application Specific Instruction Set Extension for Hashing},
booktitle = {International Workshop on Accelerating Data Management Systems Using Modern Processor and Storage Architectures - ADMS 2014, Hangzhou, China, September 1, 2014.},
year = {2014},
pages = {25--33},
url = {http://www.adms-conf.org/2014/adms14_arnold.pdf},
publisher = {Bordawekar, Rajesh; Lahiri, Tirthankar; Gedik, Bugra \& Lang, Christian A.}
}
Lehner, W.; Habich, D.; Schlegel, B.; Kissinger, T.; Kiefer, T.
In International Workshop on Accelerating Data Management Systems Using Modern Processor and Storage Architectures - ADMS 2014, Hangzhou, China, September 1, 2014.Bordawekar, Rajesh; Lahiri, Tirthankar; Gedik, Bugra & Lang, Christian A.,74-85,2014.
@article{,
author = {Wolfgang Lehner and Dirk Habich and Benjamin Schlegel and Thomas Kissinger and Tim Kiefer},
title = {ERIS: A NUMA-Aware In-Memory Storage Engine for Analytical Workload},
booktitle = {International Workshop on Accelerating Data Management Systems Using Modern Processor and Storage Architectures - ADMS 2014, Hangzhou, China, September 1, 2014.},
year = {2014},
pages = {74--85},
url = {http://www.adms-conf.org/2014/adms14_kissinger.pdf},
publisher = {Bordawekar, Rajesh; Lahiri, Tirthankar; Gedik, Bugra \& Lang, Christian A.}
}
Lehner, W.; Habich, D.; Schlegel, B.; Kissinger, T.; Kiefer, T.
In International Conference on Management of Data, SIGMOD 2014, Snowbird, UT, USA, June 22-27, 2014.Dyreson, Curtis E.; Li, Feifei & özsu, M. Tamer,689-692,2014.
@article{,
author = {Wolfgang Lehner and Dirk Habich and Benjamin Schlegel and Thomas Kissinger and Tim Kiefer},
title = {ERIS live: a NUMA-aware in-memory storage engine for tera-scale multiprocessor systems},
booktitle = {International Conference on Management of Data, SIGMOD 2014, Snowbird, UT, USA, June 22-27, 2014},
year = {2014},
isbn = {978-1-4503-2376-5},
pages = {689--692},
url = {http://doi.acm.org/10.1145/2588555.2594524},
publisher = {Dyreson, Curtis E.; Li, Feifei \& \"{o}zsu, M. Tamer}
}
In Proceedings of the 7th IEEE/ACM International Conference on Utility and Cloud Computing, UCC 2014, London, United Kingdom, December 8-11, 2014.871-876,2014.
@article{,
author = {Wolfgang Lehner and Thomas Kissinger},
title = {Energy-Efficient Databases Using Sweet Spot Frequencies},
booktitle = {Proceedings of the 7th IEEE/ACM International Conference on Utility and Cloud Computing, UCC 2014, London, United Kingdom, December 8-11, 2014},
year = {2014},
isbn = {978-1-4799-7881-6},
pages = {871--876},
url = {http://dx.doi.org/10.1109/UCC.2014.142}
}
In Tenth International Workshop on Data Management on New Hardware, DaMoN 2014, Snowbird, UT, USA, June 23, 2014.Kemper, Alfons & Pandis, Ippokratis,1:1-1:7,2014.
@article{,
author = {Wolfgang Lehner and Thomas Kissinger},
title = {Dynamic fine-grained scheduling for energy-efficient main-memory queries},
booktitle = {Tenth International Workshop on Data Management on New Hardware, DaMoN 2014, Snowbird, UT, USA, June 23, 2014},
year = {2014},
isbn = {978-1-4503-2971-2},
pages = {1},
url = {http://doi.acm.org/10.1145/2619228.2619229},
publisher = {Kemper, Alfons \& Pandis, Ippokratis}
}
Lehner, W.; Schlegel, B.; Kissinger, T.
In International Conference on Management of Data, SIGMOD 2014, Snowbird, UT, USA, June 22-27, 2014.Dyreson, Curtis E.; Li, Feifei & özsu, M. Tamer,767-778,2014.
@article{,
author = {Wolfgang Lehner and Benjamin Schlegel and Thomas Kissinger},
title = {An application-specific instruction set for accelerating set-oriented database primitives},
booktitle = {International Conference on Management of Data, SIGMOD 2014, Snowbird, UT, USA, June 22-27, 2014},
year = {2014},
isbn = {978-1-4503-2376-5},
pages = {767--778},
url = {http://doi.acm.org/10.1145/2588555.2593677},
publisher = {Dyreson, Curtis E.; Li, Feifei \& \"{o}zsu, M. Tamer}
}
Lehner, W.; Voigt, H.; Kissinger, T.
In Conference on Scientific and Statistical Database Management, SSDBM '13, Baltimore, MD, USA, July 29 - 31, 2013.Szalay, Alex; Budavari, Tamas; Balazinska, Magdalena; Meliou, Alexandra & Sacan, Ahmet,2013.
@article{,
author = {Wolfgang Lehner and Hannes Voigt and Thomas Kissinger},
title = {SMIX: self-managing indexes for dynamic workloads},
booktitle = {Conference on Scientific and Statistical Database Management, SSDBM '13, Baltimore, MD, USA, July 29 - 31, 2013},
year = {2013},
isbn = {978-1-4503-1921-8},
url = {http://doi.acm.org/10.1145/2484838.2484862},
publisher = {Szalay, Alex; Budavari, Tamas; Balazinska, Magdalena; Meliou, Alexandra \& Sacan, Ahmet}
}
Lehner, W.; Habich, D.; Schlegel, B.; Kissinger, T.
In Proceedings of the ACM SIGMOD International Conference on Management of Data, SIGMOD 2013, New York, NY, USA, June 22-27, 2013.Ross, Kenneth A.; Srivastava, Divesh & Papadias, Dimitris,1105-1108,2013.
@article{,
author = {Wolfgang Lehner and Dirk Habich and Benjamin Schlegel and Thomas Kissinger},
title = {Query processing on prefix trees live},
booktitle = {Proceedings of the ACM SIGMOD International Conference on Management of Data, SIGMOD 2013, New York, NY, USA, June 22-27, 2013},
year = {2013},
isbn = {978-1-4503-2037-5},
pages = {1105--1108},
url = {http://doi.acm.org/10.1145/2463676.2463682},
publisher = {Ross, Kenneth A.; Srivastava, Divesh \& Papadias, Dimitris}
}
Lehner, W.; Habich, D.; Schlegel, B.; Kissinger, T.
In CIDR 2013, Sixth Biennial Conference on Innovative Data Systems Research, Asilomar, CA, USA, January 6-9, 2013, Online Proceedings.2013.
@article{,
author = {Wolfgang Lehner and Dirk Habich and Benjamin Schlegel and Thomas Kissinger},
title = {QPPT: Query Processing on Prefix Trees},
booktitle = {CIDR 2013, Sixth Biennial Conference on Innovative Data Systems Research, Asilomar, CA, USA, January 6-9, 2013, Online Proceedings},
year = {2013},
url = {http://www.cidrdb.org/cidr2013/Papers/CIDR13_Paper3.pdf}
}
Lehner, W.; Schlegel, B.; Kissinger, T.; Kiefer, T.
In Conference on Scientific and Statistical Database Management, SSDBM '13, Baltimore, MD, USA, July 29 - 31, 2013.Szalay, Alex; Budavari, Tamas; Balazinska, Magdalena; Meliou, Alexandra & Sacan, Ahmet,2013.
@article{,
author = {Wolfgang Lehner and Benjamin Schlegel and Thomas Kissinger and Tim Kiefer},
title = {pcApriori: scalable apriori for multiprocessor systems},
booktitle = {Conference on Scientific and Statistical Database Management, SSDBM '13, Baltimore, MD, USA, July 29 - 31, 2013},
year = {2013},
isbn = {978-1-4503-1921-8},
url = {http://doi.acm.org/10.1145/2484838.2484879},
publisher = {Szalay, Alex; Budavari, Tamas; Balazinska, Magdalena; Meliou, Alexandra \& Sacan, Ahmet}
}
Lehner, W.; Voigt, H.; Jäkel, T.; Kissinger, T.
In Datenbanksysteme für Business, Technologie und Web (BTW), 15. Fachtagung des GI-Fachbereichs Datenbanken und Informationssysteme" (DBIS).149-163,2013.
@article{,
author = {Wolfgang Lehner and Hannes Voigt and Tobias J\"{a}kel and Thomas Kissinger},
title = {Pack Indexing for Time-Constrained In-Memory Query Processing},
booktitle = {Datenbanksysteme f\"{u}r Business, Technologie und Web (BTW), 15. Fachtagung des GI-Fachbereichs Datenbanken und Informationssysteme"' (DBIS)},
volume = {214},
year = {2013},
isbn = {978-3-88579-608-4},
pages = {149--163},
url = {http://www.btw-2013.de/proceedings/Pack\%20Indexing\%20for\%20TimeConstrained\%20InMemory\%20Query\%20Processing.pdf}
}
Lehner, W.; Habich, D.; Kissinger, T.
In Proceedings of the ACM SIGMOD International Conference on Management of Data, SIGMOD 2013, New York, NY, USA, June 22-27, 2013.Ross, Kenneth A.; Srivastava, Divesh & Papadias, Dimitris,1285-1286,2013.
@article{,
author = {Wolfgang Lehner and Dirk Habich and Thomas Kissinger},
title = {BUZZARD: a NUMA-aware in-memory indexing system},
booktitle = {Proceedings of the ACM SIGMOD International Conference on Management of Data, SIGMOD 2013, New York, NY, USA, June 22-27, 2013},
year = {2013},
isbn = {978-1-4503-2037-5},
pages = {1285--1286},
url = {http://doi.acm.org/10.1145/2463676.2465342},
publisher = {Ross, Kenneth A.; Srivastava, Divesh \& Papadias, Dimitris}
}
Lehner, W.; Habich, D.; Schlegel, B.; Kissinger, T.; Böhm, M.
In SIGMOD Record.44-50,2012.
@article{,
author = {Wolfgang Lehner and Dirk Habich and Benjamin Schlegel and Thomas Kissinger and Matthias B\"{o}hm},
title = {A high-throughput in-memory index, durable on flash-based SSD: insights into the winning solution of the SIGMOD programming contest 2011},
journal = {SIGMOD Record},
volume = {41},
year = {2012},
pages = {44--50},
url = {http://doi.acm.org/10.1145/2380776.2380788}
}
Lehner, W.; Voigt, H.; Kissinger, T.
In IEEE 28th International Conference on Data Engineering (ICDE 2012), Washington, DC, USA (Arlington, Virginia), 1-5 April, 2012.Kementsietsidis, Anastasios & Salles, Marcos Antonio Vaz,1225-1228,2012.
@article{,
author = {Wolfgang Lehner and Hannes Voigt and Thomas Kissinger},
title = {SMIX Live \&\#8211; A Self-Managing Index Infrastructure for Dynamic Workloads},
booktitle = {IEEE 28th International Conference on Data Engineering (ICDE 2012), Washington, DC, USA (Arlington, Virginia), 1-5 April, 2012},
year = {2012},
isbn = {978-0-7695-4747-3},
pages = {1225--1228},
url = {http://dx.doi.org/10.1109/ICDE.2012.9},
publisher = {Kementsietsidis, Anastasios \& Salles, Marcos Antonio Vaz}
}
Lehner, W.; Habich, D.; Schlegel, B.; Kissinger, T.
In Proceedings of the Eighth International Workshop on Data Management on New Hardware, DaMoN 2012, Scottsdale, AZ, USA, May 21, 2012.Chen, Shimin & Harizopoulos, Stavros,16-23,2012.
@article{,
author = {Wolfgang Lehner and Dirk Habich and Benjamin Schlegel and Thomas Kissinger},
title = {KISS-Tree: smart latch-free in-memory indexing on modern architectures},
booktitle = {Proceedings of the Eighth International Workshop on Data Management on New Hardware, DaMoN 2012, Scottsdale, AZ, USA, May 21, 2012},
year = {2012},
isbn = {978-1-4503-1445-9},
pages = {16--23},
url = {http://doi.acm.org/10.1145/2236584.2236587},
publisher = {Chen, Shimin \& Harizopoulos, Stavros}
}
Lehner, W.; Voigt, H.; Jäkel, T.; Kissinger, T.
In Workshops Proceedings of the IEEE 28th International Conference on Data Engineering, ICDE 2012, Arlington, VA, USA, April 1-5, 2012.Kementsietsidis, Anastasios & Salles, Marcos Antonio Vaz,308-314,2012.
@article{,
author = {Wolfgang Lehner and Hannes Voigt and Tobias J\"{a}kel and Thomas Kissinger},
title = {Adaptive Index Buffer},
booktitle = {Workshops Proceedings of the IEEE 28th International Conference on Data Engineering, ICDE 2012, Arlington, VA, USA, April 1-5, 2012},
year = {2012},
isbn = {978-1-4673-1640-8},
pages = {308--314},
url = {http://dx.doi.org/10.1109/ICDEW.2012.39},
publisher = {Kementsietsidis, Anastasios \& Salles, Marcos Antonio Vaz}
}
Optimierung der ERIS-Datenbank durch das Global Register Unit.
Eric Lübke June 5th, 2016 until March 28th, 2017
Supervision: Thomas Kissinger, Dirk Habich
Conceptual Design of a Matrix-Store for Data-Oriented Database Systems
Matthias Jordan November 7th, 2016 until April 16th, 2017
Supervision: Dirk Habich
Lightweight compression algorithms and interfaces for flexible storage architectures
Paul Peschel July 1st, 2015 until January 9th, 2015
Supervision: Thomas Kissinger, Patrick Damme
Energieeffizientes Scheduling von Datenbankoperatoren auf ARM big.LITTLE Architekturen
Willi Mentzel August 7th, 2015 until January 11th, 2016
Supervision: Thomas Kissinger, Tomas Karnagel
Energieproportionalitätserweiterungen für Datenorientierte Datenbankarchitekturen
Tobias Anker August 25th, 2015 until January 10th, 2016
Supervision: Thomas Kissinger