World's Best Scientists 2026 revealed!
Christian Freksa

Christian Freksa

D-Index & Metrics

Engineering and Technology

D-Index
34
Citations
8425
World Ranking
9120
National Ranking
310

Christian Freksa publication distribution in Engineering and Technology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Engineering and Technology in 2026. The highlighted bar marks where Christian Freksa sits on this spectrum.

38–47 publications: 20 scientists 48–57 publications: 35 scientists 58–67 publications: 96 scientists 68–77 publications: 135 scientists 78–87 publications: 190 scientists 88–97 publications: 259 scientists 98–107 publications: 283 scientists 108–117 publications: 369 scientists 118–127 publications: 341 scientists 128–137 publications: 386 scientists 138–147 publications: 372 scientists 148–157 publications: 457 scientists 158–167 publications: 415 scientists 168–177 publications: 407 scientists 178–187 publications: 421 scientists 188–197 publications: 378 scientists 198–207 publications: 403 scientists 208–217 publications: 317 scientists 218–227 publications: 346 scientists 228–237 publications: 321 scientists 238–247 publications: 260 scientists 248–257 publications: 280 scientists 258–267 publications: 240 scientists 268–277 publications: 214 scientists 278–287 publications: 242 scientists 288–297 publications: 203 scientists 298–307 publications: 166 scientists 308–317 publications: 154 scientists 318–327 publications: 175 scientists 328–337 publications: 159 scientists 338–347 publications: 99 scientists 348–357 publications: 131 scientists 358–367 publications: 106 scientists 368–377 publications: 118 scientists 378–387 publications: 97 scientists 388–397 publications: 108 scientists 398–407 publications: 82 scientists 408–417 publications: 71 scientists 418–427 publications: 64 scientists 428–437 publications: 55 scientists 438–447 publications: 54 scientists 448–457 publications: 60 scientists 458–467 publications: 47 scientists 468–477 publications: 40 scientists 478–487 publications: 30 scientists 488–497 publications: 29 scientists 498–507 publications: 38 scientists 508–517 publications: 40 scientists 518–527 publications: 32 scientists 528–537 publications: 23 scientists 538–547 publications: 28 scientists 548–557 publications: 23 scientists 558–567 publications: 19 scientists 568–577 publications: 16 scientists 578–587 publications: 17 scientists 588–597 publications: 18 scientists 598–607 publications: 22 scientists 608–617 publications: 15 scientists 618–627 publications: 9 scientists 628–637 publications: 11 scientists 638–647 publications: 21 scientists 648–657 publications: 12 scientists 658–667 publications: 9 scientists 668–677 publications: 11 scientists 678–687 publications: 9 scientists 688–697 publications: 6 scientists 698–707 publications: 14 scientists 708–717 publications: 7 scientists 718–727 publications: 8 scientists 728–737 publications: 10 scientists 738–747 publications: 9 scientists 748–757 publications: 5 scientists 758–767 publications: 5 scientists 768–777 publications: 11 scientists 778–787 publications: 7 scientists 788–797 publications: 2 scientists 798–803 publications: 4 scientists 804+ publications: 100 scientists
38 publications 804+

This scientist: 120 publications — 15th percentile

15% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 804 publications or more.

Christian Freksa D-index placement in Engineering and Technology in 2026

The chart shows the D-index (discipline H-index) distribution of Engineering and Technology scientists ranked by Research.com in 2026. The highlighted bar marks where Christian Freksa sits on this spectrum.

30 D-Index: 59 scientists 31 D-Index: 114 scientists 32 D-Index: 129 scientists 33 D-Index: 189 scientists 34 D-Index: 200 scientists 35 D-Index: 262 scientists 36 D-Index: 311 scientists 37 D-Index: 312 scientists 38 D-Index: 350 scientists 39 D-Index: 385 scientists 40 D-Index: 348 scientists 41 D-Index: 362 scientists 42 D-Index: 426 scientists 43 D-Index: 380 scientists 44 D-Index: 310 scientists 45 D-Index: 341 scientists 46 D-Index: 301 scientists 47 D-Index: 306 scientists 48 D-Index: 271 scientists 49 D-Index: 246 scientists 50 D-Index: 210 scientists 51 D-Index: 253 scientists 52 D-Index: 213 scientists 53 D-Index: 221 scientists 54 D-Index: 195 scientists 55 D-Index: 186 scientists 56 D-Index: 170 scientists 57 D-Index: 167 scientists 58 D-Index: 166 scientists 59 D-Index: 144 scientists 60 D-Index: 152 scientists 61 D-Index: 141 scientists 62 D-Index: 138 scientists 63 D-Index: 131 scientists 64 D-Index: 118 scientists 65 D-Index: 114 scientists 66 D-Index: 119 scientists 67 D-Index: 95 scientists 68 D-Index: 87 scientists 69 D-Index: 77 scientists 70 D-Index: 89 scientists 71 D-Index: 69 scientists 72 D-Index: 54 scientists 73 D-Index: 46 scientists 74 D-Index: 55 scientists 75 D-Index: 54 scientists 76 D-Index: 49 scientists 77 D-Index: 53 scientists 78 D-Index: 46 scientists 79 D-Index: 28 scientists 80 D-Index: 39 scientists 81 D-Index: 36 scientists 82 D-Index: 24 scientists 83 D-Index: 26 scientists 84 D-Index: 36 scientists 85 D-Index: 18 scientists 86 D-Index: 25 scientists 87 D-Index: 19 scientists 88 D-Index: 26 scientists 89 D-Index: 27 scientists 90 D-Index: 23 scientists 91 D-Index: 15 scientists 92 D-Index: 12 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 13 scientists 97 D-Index: 13 scientists 98 D-Index: 9 scientists 99 D-Index: 7 scientists 100 D-Index: 7 scientists 101 D-Index: 8 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 9 scientists 105 D-Index: 6 scientists 106 D-Index: 9 scientists 107+ D-Index: 99 scientists
30 D-Index 107+

This scientist: 34 D-Index — 7th percentile

7% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 107 D-Index or more.

Overview

Christian Freksa is affiliated with the University of Bremen in Germany and specializes primarily in the field of Computer Science. Their research encompasses several subfields including Artificial Intelligence, Computer Networks and Communications, Geography, Planning and Development, and Signal Processing.

Their work addresses a range of topics with a focus on Constraint Satisfaction and Optimization, AI-based Problem Solving and Planning, Geographic Information Systems Studies, Data Management and Algorithms, Semantic Web and Ontologies, Cognitive Science and Mapping, and Artificial Intelligence in Games.

Freksa's research output includes papers published in notable venues such as Transactions in GIS and the Journal of Spatial Information Science. Two recent papers demonstrate the scope of their interests:

  • Extracting invariant characteristics of sketch maps: Towards place query-by-sketch (2020, Transactions in GIS)
  • Beyond spatial reasoning: Challenges for ecological problem solving (2020, Journal of Spatial Information Science)

Collaborations are evident in their work, with frequent co-authors including Ming Tang, Zoe Falomir, Yehua Sheng, Haiyang Lyu, and Maria Vasardani. These collaborations reflect contributions across various aspects of spatial reasoning, ecological problem solving, and related computational methods.

The mixture of topics such as GIS, cognitive science, and AI-based planning highlights a multidisciplinary approach within their scientific endeavors. Publications in both geography-oriented journals and computer science domains illustrate an intersection of technical and applied research.

Best Publications

  • Temporal reasoning based on semi-intervals

    Christian Freksa

  • Using Orientation Information for Qualitative Spatial Reasoning

    Christian Freksa

  • The paradoxical success of fuzzy logic

    C. Elkan;H.R. Berenji;B. Chandrasekaran;C.J.S. de Silva

  • Qualitative Spatial Reasoning

    Christian Freksa

  • Cognitive models of geographical space

    David M. Mark;Christian Freksa;Stephen C. Hirtle;Robert Lloyd

  • Spatial Information Theory. Cognitive and Computational Foundations of Geographic Information Science

    Christian Freksa;David M. Mark

  • Qualitative Spatial Reasoning Using Orientation, Distance, and Path Knowledge *

    Kai Zimmermann;Christian Freksa

  • Spatial Cognition: The Role of Landmark, Route, and Survey Knowledge in Human and Robot Navigation

    Steffen Werner;Bernd Krieg-Brückner;Hanspeter A. Mallot;Karin Schweizer

  • Wörterbuch der Kognitionswissenschaft

    G. Strube;B. Becker;C. Freksa;U. Hahn

  • Spatial Cognition, An Interdisciplinary Approach to Representing and Processing Spatial Knowledge

    Christian Freksa;Christopher Habel;Karl Friedrich Wender

  • Cognitive Requirements on Making and Interpreting Maps

    Thomas Barkowsky;Christian Freksa

  • Spatial Cognition IV, Reasoning, Action, Interaction

    Christian Freksa;Holger Schultheis;Kerstin Schill;Thora Tenbrink

  • On the utilization of spatial structures for cognitively plausible and efficient reasoning

    C. Freksa;K. Zimmermann

  • Qualitative spatial representation and reasoning in the SparQ-toolbox

    Jan Oliver Wallgrün;Lutz Frommberger;Diedrich Wolter;Frank Dylla

  • Spatial Representation with Aspect Maps

    Bettina Berendt;Thomas Barkowsky;Christian Freksa;Stephanie Kelter

  • You-Are-Here Maps in Emergencies - The Danger of Getting Lost

    Alexander Klippel;Christian Freksa;Stephan Winter

  • The Cognitive Reality of Schematic Maps

    Alexander Klippel;Kai Florian Richter;Thomas Barkowsky;Christian Freksa

  • Approaching the notion of place by contrast

    Stephan Winter;Christian Freksa

  • DIMENSIONS OF QUALITATIVE SPATIAL REASONING

    Christian Freksa;Ralf Röhrig

  • Schematic Maps as Wayfinding Aids

    Hernan Casakin;Thomas Barkowsky;Alexander Klippel;Christian Freksa

  • Schematic Maps for Robot Navigation

    Christian Freksa;Reinhard Moratz;Thomas Barkowsky

  • "Spatial and Visual Components in Mental Reasoning About Space" Editorial

    Thomas Barkowsky;Christian Freksa;Markus Knauff

  • Qualitative spatial reasoning about relative position: the tradeoff between strong formal properties and successful reasoning about route graphs

    Reinhard Moratz;Bernhard Nebel;Christian Freksa

  • The ‘Space’ in Spatial Assistance Systems : Conception, Formalisation and Computation

    Mehul Bhatt;Carl Schultz;Christian Freksa

  • Spatial Computing for Design—an Artificial Intelligence Perspective

    Mehul Bhatt;Christian Freksa

  • Foundations of computer science : potential--theory--cognition

    Wilfried Brauer;C. Freksa;Matthias Jantzen;R. Valk

  • KI 2006: Advances in Artificial Intelligence

    Christian Freksa;Michael Kohlhase;Kerstin Schill

  • Spatial and Temporal Structures in Cognitive Processes

    Christian Freksa

  • Visual Attention and Cognition

    Godwin Lekwuwa;W.H. Zangemeister;H.S. Stiehl;C. Freksa

Frequent Co-Authors

Bernhard Nebel
Bernhard Nebel University of Freiburg
Mary Hegarty
Mary Hegarty University of California, Santa Barbara
Stephan Winter
Stephan Winter University of Melbourne
Peter Haddawy
Peter Haddawy Mahidol University
Peter Gärdenfors
Peter Gärdenfors Lund University
Nora S. Newcombe
Nora S. Newcombe Temple University
Lotfi A. Zadeh
Lotfi A. Zadeh University of California, Berkeley
Didier Dubois
Didier Dubois Paul Sabatier University
John Yen
John Yen Pennsylvania State University

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