Professor Dr. Jan Vahrenhold

 

Publikationen

Aufsätze

Aufsätze (Zeitschriften)
  • Scheffer C, Vahrenhold J. . ‘Approximating Geodesic Distances on 2-Manifolds in R^3: The Weighted Case.’ Computational Geometry: Theory & Applications 47, Nr. 8: 789-808. doi: 10.1016/j.comgeo.2014.04.003.
  • Vahrenhold J, Paul W. . ‘Developing and Validating Test Items for First-Year Computer Science Courses.’ Computer Science Education 24, Nr. 4: 304-333. doi: 10.1080/08993408.2014.970782.
  • Scheffer C, Vahrenhold J. . ‘Approximating Geodesic Distances on 2-Manifolds in R^3.’ Computational Geometry: Theory & Applications 47, Nr. 2: 125-140. doi: 10.1016/j.comgeo.2012.05.001.
  • Knobelsdorf M, Vahrenhold J. . ‘Addressing the Full Range of Students: Challenges in K-12 Computer Science Education.’ IEEE Computer 46, Nr. 9: 32-37. doi: 10.1109/MC.2013.263.
  • Gieseke F, Moruz G, Vahrenhold J. . ‘Resilient K-d Trees: K-Means in Space Revisited.’ Frontiers of Computer Science 6, Nr. 2: 166-178. doi: 10.1007/s11704-012-2870-8.
  • Gieseke F, Gudmundsson J, Vahrenhold J. . ‘Pruning Spanners and Constructing Well-Separated Pair Decompositions in the Presence of Memory Hierarchies.’ Journal of Discrete Algorithms 8, Nr. 2: 259-272. doi: 10.1016/j.jda.2010.03.001.
  • Blunck H, Vahrenhold J. . ‘In-Place Algorithms for Computing (Layers of) Maxima.’ Algorithmica 57, Nr. 1: 1-21. doi: 10.1007/s00453-008-9193-z.
  • Beume N, Fonseca CM, López-Ibánez M, Paquete L, Vahrenhold J. . ‘On the Complexity of Computing the Hypervolume Indicator.’ IEEE Transactions on Evolutionary Computation 13, Nr. 5: 1075-1082. doi: 10.1109/TEVC.2009.2015575.
  • Vahrenhold J. . ‘Line-Segment Intersection Made In-Place.’ Computational Geometry: Theory & Applications 38, Nr. 3: 213-230. doi: 10.1016/j.comgeo.2006.09.001.
  • Vahrenhold J. . ‘An In-Place Algorithm for Klee's Measure Problem in Two Dimensions.’ Information Processing Letters 102, Nr. 4: 169-174. doi: 10.1016/j.ipl.2006.12.004.
  • Bose P, Maheshwari A, Morin P, Morrison J, Smid M, Vahrenhold J. . ‘Space-Efficient Geometric Divide-and-Conquer Algorithms.’ Computational Geometry: Theory & Applications. 37, Nr. 3: 209-227. doi: 10.1016/j.comgeo.2006.03.006.
  • Arge LA, Vahrenhold J. . ‘I/O-Efficient Dynamic Planar Point Location.’ Computational Geometry: Theory & Applications 29, Nr. 2: 147-162. doi: 10.1016/j.comgeo.2003.04.001.
  • Vahrenhold J, Hinrichs KH. . Planar Point Location for Large Data Sets: To Seek or Not To Seek.’ ACM Journal of Experimental Algorithmics 7, Article 8. doi: 10.1145/944618.944626.
  • Arge LA, Hinrichs KH, Vahrenhold J, Vitter JS. . ‘Efficient Bulk Operations on Dynamic R-trees.’ Algorithmica 33, Nr. 1: 104-128. doi: 10.1007/s00453-001-0107-6.
  • Köhling R, Reinel J, Vahrenhold J, Hinrichs KH, Speckmann E. . ‘Spatio-Temporal Patterns of Neuronal Activity: Analysis of Optical Imaging Data Using Geometric Shape Matching.’ Journal of Neuroscience Methods 114, Nr. 1: 17-23. doi: 10.1016/S0165-0270(01)00504-0.
  • Agarwal PK, de Berg M, Har-Peled S, Overmars MH, Sharir M, Vahrenhold J. . ‘Reporting Intersecting Pairs of Convex Polytopes in Two and Three Dimensions.’ Computational Geometry: Theory & Applications 23, Nr. 2: 195-207. doi: 10.1016/S0925-7721(02)00049-4.
Aufsätze (Konferenz)
  • Caspersen ME, Gal-Ezer J, Nardelli E, Vahrenhold J, Westermeier M. . ‘The CECE Report: Creating a Map of Informatics in European Schools.’ In Proceedings of the 49th ACM Technical Symposium on Computer Science Education, edited by Barnes T, Garcia D. New York, NY: ACM. doi: 10.1145/3159450.3159633. [Akzeptiert]
  • Beckemeyer M, Vahrenhold J. . ‘Bulk-Loading an Index for Temporally Overlaying Spatio-Textual Trajectories.’ In Proceedings of the 6th ACM SIGSPATIAL Workshop on Analytics for Big Geospatial Data (BigSpatial 2017), edited by Chandola V, Vatsavai RR. New York, NY: ACM. doi: 10.1145/3150919.3150922. [Im Druck]
  • Dütsch F, Vahrenhold J. . ‘A Filter-and-Refinement-Algorithm for Range Queries Based on the Fréchet Distance (GIS Cup).’ In Proceedings of the 25th ACM SIGSPATIAL International Conference in Geographic Information Systems (SIGSPATIAL 2017). New York: ACM. doi: 10.1145/3139958.3140063. [Im Druck]
  • Danielsiek H, Hubwieser P, Krugel J, Magenheim J, Ohrndorf L, Ossenschmidt D, Schaper N, Vahrenhold J. . „Kompetenzbasierte Gestaltungsempfehlungen für Informatik-Tutorenschulungen.“ In INFORMATIK 2017, herausgegeben von Eibl M, Gaedke M, 241-254. Bonn: Gesellschaft für Informatik. doi: 10.18420/in2017_18.
  • Danielsiek H, Toma L, Vahrenhold J. . An Instrument to Assess Self-Efficacy in Introductory Algorithms Courses.’ In Proceedings of the thirteenth annual ACM International Computing Education Research (ICER) conference, edited by Tenenberg J, Chinn D, Malmi L, Korhonen A, Sheard J, 217-225. New York, NY: ACM Press. doi: 10.1145/3105726.3106171.
  • Danielsiek H, Hubwieser P, Krugel J, Magenheim J, Ohrndorf L, Ossenschmidt D, Schaper N, Vahrenhold J. . ‘Undergraduate Teaching Assistants in Computer Science: Teaching-Related Beliefs, Tasks, and Competences.’ In Proceedings of the IEEE Global Engineering Education Conference (EDUCON), edited by Douligeris C, Auer ME, Sgouropoulou C, Stracke C, Xenos M, 718-725.: IEEE. doi: 10.1109/EDUCON.2017.7942927.
  • Vahrenhold J. . „Diagnose und individuelle Förderung (im Informatik-Unterricht).“ In Informatik erweitert Horizonte: 15. GI-Fachtagung Informatik und Schule, herausgegeben von Breier N, Stechert P, Wilke Th, 23. Bonn: Köllen.
  • Danielsiek H, Humbert L, Vahrenhold J. . ‘Research-Based Learning Revisited: On Using a Delphi Process in Informatics Teacher Education.’ In Proceedings of the 6th Conference on Informatics in Schools: Situation, Evolution and Perspectives (ISSEP 2013), edited by Diethelm I, Mittermeir R, 196-208. Berlin: Springer. doi: 10.1007/978-3-642-36617-8_17.
  • Paul W, Vahrenhold J. . Hunting High and Low: Instruments to Detect Misconceptions Related to Algorithms and Data Structures.’ In Proceedings of the 44th SIGCSE Technical Symposium on Computer Science Education (SICGSE 2013), edited by Camp T, Tymann PT, Dougherty JD, Nagel K, 29-34.: ACM Press. doi: 10.1145/2445196.2445212.
  • Thies R, Vahrenhold J. . On Plugging "Unplugged" into CS Classes.’ In Proceedings of the 44th SIGCSE Technical Symposium on Computer Science Education (SICGSE 2013), edited by Camp T, Tymann PT, Dougherty JD, Nagel K, 365-370.: ACM Press. doi: 10.1145/2445196.2445303.
  • Scheffer C, Vahrenhold J. . ‘Approximating Weighted Geodesic Distances in R^3.’ In Proceedings of the 29th European Workshop on Computational Geometry, edited by Fekete, S, 107-110.
  • Vahrenhold J. . ‘On Misconceptions and Implementing 'A Class Defines a Data Type'.’ In Proceedings of Selected Papers of the 5th International Conference on Informatics in Schools: Situation, Evolution and Perspectives (ISSEP 2011), edited by Bezáková D, Kalaš I.
  • Scheffer C, Vahrenhold J. . ‘Learning a 2-Manifold with a Boundary in R^3.’ In Abstracts from EuroCG 2011, 27th European Workshop on Computational Geometry, edited by Hoffmann M, 213-216.
  • Scheffer C, Vahrenhold J. . ‘Approximating Geodesic Distances on 2-Manifolds in R^3.’ In Proceedings of the 23rd Canadian Conference on Computational Geometry (CCCG 2011), edited by Aloupis G, Bremner D, 325-330.
  • Stephenson C, Gal-Ezer J, Philipps M, Vahrenhold J. . Professional Associations in K-12 Computer Science.’ In Proceedings of the 15th Annual Conference on Innovation and Technology in Computer Science Education (ITiCSE 2010), edited by Ayfer R, Impagliazzo J, Laxer C, 329-330. New York City: ACM. doi: 10.1145/1822090.1822207.
  • Bell T, Pasternak A, Stephenson C, Tucker AB, Vahrenhold J. . ‘Implementing CS Curricula in Secondary Education: An International Perspective.’ In Proceedings of the 40th Annual Frontiers in Education Conference (FIE 2010), T2B-1-T2B-3.: IEEE Computer Society. doi: 10.1109/FIE.2010.5673370.
  • Gieseke F, Moruz G, Vahrenhold J. . ‘Resilient K-d Trees: K-Means in Space Revisited.’ In Proceedings of the 10th IEEE International Conference on Data Mining (ICDM 2010), 815-820.: IEEE Computer Society. doi: 10.1109/ICDM.2010.94.
  • Pasternak A, Vahrenhold J. . Braided Teaching in Secondary CS Education: Contexts, Continuity, and the Role of Programming.’ In Proceedings of the 41st SIGCSE Technical Symposium on Computer Science Education (SICGSE 2010), edited by Cortina T, Walker E, 204-208.: ACM Press. doi: 10.1145/1734263.1734336.
  • Gieseke F, Polsterer KL, Thom A, Zinn P, Bomans D, Dettmar R, Kramer O, Vahrenhold J. . ‘Detecting Quasars in Large-Scale Astronomical Surveys.’ In Proceedings of the Ninth International Conference on Machine Learning and Applications (ICMLA 2010), 352-357.: IEEE Computer Society. doi: 10.1109/ICMLA.2010.59.
  • Gieseke F, Vahrenhold J. . ‘Cache-Oblivious Construction of a Well-Separated Pair Decomposition.’ In Proceedings of the 25th European Workshop on Computational Geometry, edited by Langerman S, 341-344.
  • Pasternak A, Vahrenhold J. . „Rote Fäden zur Kontextorientierung im Informatikunterricht.“ In Informatische Bildung in Theorie und Praxis, 13. GI-Fachtagung - Informatik und Schule (INFOS 2009), herausgegeben von Peters I, 45-56.: Log In.
  • Becker L, Partzsch H, Vahrenhold J. . ‘Query Responsive Index Structures.’ In Proceedings of the Fifth International Conference on Geographic Information Science (GIScience 2008), edited by Cova TJ, Miller HJ, Beard K, Frank AU, Goodchild MF, 1-19. Berlin: Springer. doi: 10.1007/978-3-540-87473-7_1.
  • Jansen C, Steinicke F, Hinrichs KH, Vahrenhold J, Schwald B. . ‘Generating Optimized Marker-based Rigid Bodies for Optical Tracking.’ In Proceedings of the Second International Conference on Computer Vision Theory and Applications (VISAPP 2007), edited by Ranchordas A, Araújo H, Vitrià J, 387-395.: INSTICC Press.
  • Jansen C, Steinicke F, Hinrichs KH, Vahrenhold J, Schwald B. . ‘Performance Improvement for Optical Tracking by Adapting Marker Arrangements.’ In Proceedings of the VR Workshop on Trends and Issues in Tracking for Virtual Environments, edited by Zachmann G, 28-33.: Shaker-Verlag.
  • Blunck H, Hinrichs KH, Sondern J, Vahrenhold J. . ‘Modeling and Engineering Algorithms for Mobile Data.’ In Progress in Spatial Data Handling, 12th International Symposium on Spatial Data Handling, 61-77. Berlin: Springer. doi: 10.1007/3-540-35589-8_5.
  • Meyer-Spradow J, Ropinski T, Vahrenhold J, Hinrichs KH. . ‘Illustrating Dynamics of Time-Varying Volume Datasets in Static Images.’ In Proceedings of the 11th International Fall Workshop on Vision, Modeling, and Visualization (VMV 2006), edited by Kobbelt L, Kuhlen T, Aach T, Westermann R, 333-340. Berlin: Akademische Verlagsanstalt AKA.
  • Blunck H, Vahrenhold J. . ‘In-Place Randomized Slope Selection.’ In 22nd European Conference on Computational Geometry, edited by Emiris I, Karavelas M, Palios L, 177-180.
  • Blunck H, Vahrenhold J. . ‘In-Place Algorithms for Computing (Layers of) Maxima.’ In 22nd European Conference on Computational Geometry, edited by Emiris I, Karavelas M, Palios L, 181-184.
  • Hazel T, Toma L, Vahrenhold J, Wickremesinghe R. . TerraCost: A Versatile and Scalable Approach to Computing Least-Cost-Path Surfaces for Massive Grid-Based Terrains.’ In Proceedings of the 21th Annual ACM Symposium on Applied Computing (SAC '06), 52-57. New York: ACM Press. doi: 10.1145/1141277.1141290.
  • Blunck H, Vahrenhold J. . ‘In-Place Randomized Slope Selection.’ In Proceedings of the 6th Conference on Algorithms and Complexity (CIAC 2006), edited by Calamoneri T, Finocchi I, Italiano GF, 31-40. Berlin: Springer. doi: 10.1007/11758471_6.
  • Blunck H, Vahrenhold J. . ‘In-Place Algorithms for Computing (Layers of) Maxima.’ In Proceedings of the 10th Scandinavian Workshop on Algorithm Theory (SWAT 2006), edited by Arge LA, Freivalds R, 363-374. Berlin: Springer. doi: 10.1007/11785293_34.
  • Vahrenhold J. . ‘Line-Segment Intersection Made In-Place.’ In Proceedings of the Ninth International Workshop on Algorithms and Data Structures (WADS 2005), edited by López-Ortiz A, Dehne F, Sack J, 146-157. Berlin: Springer. doi: 10.1007/11534273_14.
  • Gudmundsson J, Vahrenhold J. . ‘I/O-Efficiently Pruning Dense Spanners.’ In Revised Selected Papers of the Japanese Conference on Discrete and Computational Geometry (JCDCG 2004), edited by Akiyama J, Kano M, Tan X, 106-116. Berlin: Springer. doi: 10.1007/11589440_11.
  • Becker L, Blunck H, Hinrichs KH, Vahrenhold J. . ‘A Framework for Representing Moving Objects.’ In Proceedings of the 15th International Conference on Database and Expert Systems Applications (DEXA 2004), edited by Galino F, Takizawa M, Traunmüller R, 854-863. Berlin: Springer. doi: 10.1007/978-3-540-30075-5_82.
  • Gudmundsson J, Vahrenhold J. . ‘I/O-Efficiently Pruning Dense Spanners.’ In Japan Conference on Discrete and Computational Geometry, JCDCG 2004, A Conference in Honor of János Pach on his 50th Year, edited by Akiyama J, Kano M, 35-36.
  • Bose P, Maheshwari A, Morin P, Morrison J, Smid M, Vahrenhold J. . ‘Space-Efficient Geometric Divide-and-Conquer Algorithms.’ In 20th European Workshop on Computational Geometry, Abstracts, edited by Díaz-Báñez JM, Márquez A, Portillo JR, 65-68.
  • Becker L, Blunck H, Hinrichs KH, Vahrenhold J. . „Ein Rahmenwerk zur Repräsentation von sich bewegenden Objekten.“ In Beitragsband zum Workshop "Grundlagen und Anwendungen mobiler Informationstechnologie" des GI-Arbeitskreises Mobile Datenbanken und Informationssysteme, herausgegeben von Höpfner H, Saake G, 3-12.
  • Blunck H, Hinrichs KH, Puke I, Vahrenhold J. . „Verarbeitung von Trajektorien mobiler Objekte.“ In Geoinformation und Mobilität - von der Forschung zur praktischen Anwendung. Beiträge zu den Münsteraner GI-Tagen 2004, herausgegeben von Raubal M, Sliwinski A, Kuhn W, 29-41.
  • Becker L, Gerke T, Hinrichs KH, Strauf nee Hausmann T, Vahrenhold J. . ‘An XML- and Log-Based Infrastructure For Evaluating And Teaching Spatio-Temporal Indexing Schemes.’ In Database and Expert Systems Applications, 2004. Proceedings. 15th International Workshop on, 851-855.: {IEEE} Press. doi: 10.1109/DEXA.2004.1333583.
  • Agarwal PK, Arge LA, Vahrenhold J. . ‘Time-Responsive External Data Structures for Moving Points.’ In Proceedings of the Seventh International Workshop on Algorithms and Data Structures (WADS 2001), edited by Dehne F, Sack J, Tamassia R, 50-61. Berlin: Springer. doi: 10.1007/3-540-44634-6_6.
  • Agarwal PK, de Berg M, Har-Peled S, Overmars MH, Sharir M, Vahrenhold J. . ‘Reporting Intersecting Pairs of Polytopes in Two and Three Dimensions.’ In Proceedings of the Seventh International Workshop on Algorithms and Data Structures (WADS 2001), edited by Dehne F, Sack J, Tamassia R, 122-134. Berlin: Springer. doi: 10.1007/3-540-44634-6_12.
  • Arge L, Procopiuc O, Ramaswamy S, Suel T, Vahrenhold J, Vitter JS. . ‘A Unified Approach for Indexed and Non-Indexed Spatial Joins.’ In Advances in Database Technology - EDBT 2000, 7th International Conference on Extending Database Technology, edited by Zaniolo C, Lockemann PC, Scholl MH, Grust T, 413-429. Berlin: Springer. doi: 10.1007/3-540-46439-5_29.
  • Vahrenhold J, Hinrichs KH. . ‘Planar Point Location for Large Data Sets: To Seek or Not to Seek.In Algorithm Engineering, 4th International Workshop, WAE 2000, edited by Näher S, Wagner D, 183-194. Berlin: Springer. doi: 10.1007/3-540-44691-5_16.
  • Arge LA, Vahrenhold J. . I/O-Efficient Dynamic Planar Point Location (Extended Abstract).’ In SCG '00: Proceedings of the Sixteenth Annual Symposium on Computational Geometry, 191-200. New York: ACM Press. doi: 10.1145/336154.336205.
  • Becker L, Giesen A, Hinrichs KH, Vahrenhold J. . ‘Algorithms for Performing Map Overlay and Spatial Join for Massive Data Sets.’ In Advances in Spatial Databases - Proceedings of the Sixth International Symposium on Spatial Databases (SSD '99), edited by Güting RH, Papadias D, Lochovsky F, 270-285. Berlin: Springer. doi: 10.1007/3-540-48482-5_17.
  • Arge LA, Hinrichs KH, Vahrenhold J, Vitter JS. . ‘Efficient Bulk Operations on Dynamic R-trees (extended abstract).’ In Algorithm Engineering and Experimentation, International Workshop ALENEX '99, edited by Goodrich MT, McGeoch CC, 328-347. Berlin: Springer. doi: 10.1007/3-540-48518-X_20.
Buchbeiträge (Sammel- Herausgeberbände)
  • Vahrenhold J, Lorenz R, Eickelmann B. . „Vermittlung informatischer Grundbildung im Unterricht der Sekundarstufe I im Bundesländervergleich.“ In Schule digital - der Länderindikator 2017. Schulische Medienbildung in der Sekundarstufe I mit besonderem Fokus auf MINT-Fächer im Bundesländervergleich und Trends von 2015 bis 2017, herausgegeben von Lorenz R, Bos W, Endberg M, Eickelmann B, Grafe S, Vahrenhold J, 205-230. Münster: Waxmann. [Im Druck]
  • Danielsiek Holger, Paul Wolfgang, Vahrenhold Jan. . „Entwurf eines Diagnosekonzepts für die Sekundarstufe I am Beispiel des Fachs Informatik.“ In Diagnose und individuelle Förderung in der MINT-Lehrerbildung: Das Projekt dortMINT, herausgegeben von Hußmann Stephan, Selter Christoph, 101-114. Münster: Waxmann.
  • Anus Sandra, Danielsiek Holger, Fischer Sandra, Girulat Annika, Graf Dittmar, Jelemenská Patrícia, Melle Insa, Nührenbörger Marcus, Paul Wolfgang, Vahrenhold Jan. . „Diagnose und individuelle Förderung erlernen.“ In Diagnose und individuelle Förderung in der MINT-Lehrerbildung: Das Projekt dortMINT, herausgegeben von Hußmann Stephan, Selter Christoph, 97-100. Münster: Waxmann.
Lexikonartikel
  • Vahrenhold J. . ‘B-Trees.’ In Encyclopedia of Algorithms, edited by Kao M-Y, 1-8. 2. Aufl. New York: Springer Science + Media. doi: 10.1007/978-3-642-27848-8_57-2.
  • Vahrenhold J. . ‘Polygon Triangulation.’ In Encyclopedia of Algorithms, edited by Kao M-Y, 1-5. 2. Aufl. New York: Springer Science + Media. doi: 10.1007/978-3-642-27848-8_506-1.

Bücher (Sammel-, Herausgeberbände)

  • Lorenz R, Bos W, Endberg M, Eickelmann B, Grafe S, Vahrenhold J (Hrsg.): . Schule digital – der Länderindikator 2017. Schulische Medienbildung in der Sekundarstufe I mit besonderem Fokus auf MINT-Fächer im Bundesländervergleich und Trends von 2015 bis 2017. Münster: Waxmann. [Im Druck]
  • Vahrenhold J, Barendsen E (Eds.): . Proceedings of the 11th Workshop in Primary and Secondary Computing Education. New York: ACM Press. doi: 10.1145/2978249.
  • Gal-Ezer J, Sentance S, Vahrenhold J (Eds.): . Proceedings of the 10th Workshop in Primary and Secondary Computing Education. doi: 10.1145/2818314.
  • Brodnik A, Vahrenhold J (Eds.): . Informatics in Schools. Curricula, Competences, and Competitions. Berlin: Springer. doi: 10.1007/978-3-319-25396-1.
  • Vahrenhold J (Ed.): . Experimental Algorithms. 8th International Symposium, SEA 2009. Dortmund, Germany, June 2009. Proceedings. Berlin: Springer. doi: 10.1007/978-3-642-02011-7.
  • Arge LA, de Berg M, Vahrenhold J (Eds.): . Proceedings of the Workshop on Massive Geometric Data Sets (Massive2005).

Berichte (Arbeits-, Forschungs-, Jahresberichte)

  • Caspersen ME, Fisler K, Vahrenhold J. . Assessing Learning In Introductory Computer Science (Dagstuhl Seminar 16072) , Nr. 6(2), . doi: 10.4230/DagRep.6.2.78.