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Research

Dr Stephan Kolassa

Honorary Researcher

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  1. 2024
  2. Published

    LLMs, Data Leakage, Bullshit, and Botshit

    Kolassa, S., 4/10/2024, In: Foresight: The International Journal of Applied Forecasting. 75, Q4, p. 11-16 6 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  3. Published

    Minitutorial: The Brier Score and Its Decomposition

    Kolassa, S., 4/10/2024, In: Foresight: The International Journal of Applied Forecasting. 75, p. 47-48 2 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  4. Published

    Minitutorial: Interactions in Forecasting

    Kolassa, S., 17/04/2024, In: Foresight: The International Journal of Applied Forecasting. 73, p. 63-64 2 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  5. Published

    Accuracy vs. Runtime with Multiple Seasonalities

    Kolassa, S., 1/01/2024, In: Foresight: The International Journal of Applied Forecasting. 72, p. 29-32 4 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  6. 2023
  7. Published

    All Hail the Flatline Forecast!

    Kolassa, S., 1/10/2023, In: Foresight: The International Journal of Applied Forecasting. 70, p. 62-63 2 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  8. Published

    Do we want coherent hierarchical forecasts, or minimal MAPEs or MAEs? (We won't get both!)

    Kolassa, S., 1/10/2023, In: International Journal of Forecasting. 39, 4, p. 1512-1517 6 p.

    Research output: Contribution to Journal/Magazine › Comment/debate › peer-review

  9. Published

    Sustainability in Forecasting

    Kolassa, S., 1/10/2023, In: Foresight: The International Journal of Applied Forecasting. 71, p. 75-76 2 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  10. Published

    Demand Forecasting for Executives and Professionals

    Kolassa, S., Rostami-Tabar, B. & Siemsen, E., 29/09/2023, CRC Press. 254 p.

    Research output: Book/Report/Proceedings › Book

  11. Published

    Book Review of Demand Forecasting Best Practices by Nicolas Vandeput

    Kolassa, S., 1/07/2023, In: Foresight: The International Journal of Applied Forecasting. 70, p. 43-44 2 p.

    Research output: Contribution to Journal/Magazine › Book/Film/Article review › peer-review

  12. Published

    Commentary: How We Deal with Zero Actuals Has a Huge Impact on the MAPE and Optimal Forecasts

    Kolassa, S., 1/04/2023, In: Foresight: The International Journal of Applied Forecasting. p. 13-16 4 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  13. Published

    Commentary: When to Be Careful about Forecasting

    Kolassa, S., 1/04/2023, In: Foresight: The International Journal of Applied Forecasting. 69, p. 25-27 3 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  14. Published

    How to Increase Forecast Accuracy

    Kolassa, S., 1/04/2023, In: Foresight: The International Journal of Applied Forecasting. 69, p. 59-60 2 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  15. Published

    Minitutorial: The Pinball Loss for Quantile Forecasts

    Kolassa, S., 1/01/2023, In: Foresight: The International Journal of Applied Forecasting. 68, p. 66-67 2 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  16. Published

    Using Simulation to Determine When Forecast Accuracy Matters

    Kolassa, S., 1/01/2023, In: Foresight: The International Journal of Applied Forecasting. 68, p. 20-24 5 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  17. 2022
  18. Published

    Retail forecasting: Research and practice

    Fildes, R., Ma, S. & Kolassa, S., 1/12/2022, In: International Journal of Forecasting. 38, 4, p. 1283-1318 36 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  19. Published

    Commentary on the M5 forecasting competition

    Kolassa, S., 31/10/2022, In: International Journal of Forecasting. 38, 4, p. 1562-1568 7 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  20. Published

    Post-script - Retail forecasting: Research and Practice

    Fildes, R., Kolassa, S. & Ma, S., 31/10/2022, In: International Journal of Forecasting. 38, 4, p. 1319-1324 6 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  21. Published

    Forecasting: theory and practice

    Petropoulos, F., Apiletti, D., Assimakopoulos, V., Babai, M. Z., Barrow, D. K., Ben Taieb, S., Bergmeir, C., Bessa, R. J., Bijak, J., Boylan, J. E., Browell, J., Carnevale, C., Castle, J. L., Cirillo, P., Clements, M. P., Cordeiro, C., Cyrino Oliveira, F. L., De Baets, S., Dokumentov, A. & Ellison, J. & 60 others, Fiszeder, P., Franses, P. H., Frazier, D. T., Gilliland, M., Gönül, M. S., Goodwin, P., Grossi, L., Grushka-Cockayne, Y., Guidolin, M., Guidolin, M., Gunter, U., Guo, X., Guseo, R., Harvey, N., Hendry, D. F., Hollyman, R., Januschowski, T., Jeon, J., Jose, V. R. R., Kang, Y., Koehler, A. B., Kolassa, S., Kourentzes, N., Leva, S., Li, F., Litsiou, K., Makridakis, S., Martin, G. M., Martinez, A. B., Meeran, S., Modis, T., Nikolopoulos, K., Önkal, D., Paccagnini, A., Panagiotelis, A., Panapakidis, I., Pavía, J. M., Pedio, M., Pedregal, D. J., Pinson, P., Ramos, P., Rapach, D. E., Reade, J. J., Rostami-Tabar, B., Rubaszek, M., Sermpinis, G., Shang, H. L., Spiliotis, E., Syntetos, A. A., Talagala, P. D., Talagala, T. S., Tashman, L., Thomakos, D., Thorarinsdottir, T., Todini, E., Trapero Arenas, J. R., Wang, X., Winkler, R. L., Yusupova, A. & Ziel, F., 1/07/2022, In: International Journal of Forecasting. 38, 3, p. 705-871 167 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  22. 2021
  23. Published

    Sex differences in PTSD risk: evidence from post-conflict populations challenges the general assumption of increased vulnerability in females

    Wilker, S., Kolassa, S., Ibrahim, H., Rajan, V., Pfeiffer, A., Catani, C. & Kolassa, I. T., 31/12/2021, In: European journal of psychotraumatology. 12, 1, 1930702.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  24. Published

    A Classification of Business Forecasting Problems

    Januschowski, T. & Kolassa, S., 1/04/2021, Business Forecasting: The Emerging Role of Artificial Intelligence and Machine Learning. Gilliland, M., Tashman, L. & Sglavo, U. (eds.). Wiley, p. 171-181 11 p.

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter

  25. Published

    Commentary: Big Data or Big Hype?

    Kolassa, S., 1/04/2021, Business Forecasting: The Emerging Role of Artificial Intelligence and Machine Learning. Gilliland, M., Tashman, L. & Sglavo, U. (eds.). Wiley, p. 148-149 2 p.

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter

  26. Published

    Forecasting the Future of Retail Forecasting

    Kolassa, S., 1/04/2021, Business Forecasting: The Emerging Role of Artificial Intelligence and Machine Learning. Gilliland, M., Tashman, L. & Sglavo, U. (eds.). Wiley, p. 243-254 12 p.

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter

  27. Published

    Know Your Time Series

    Kolassa, S. & Siemsen, E., 1/04/2021, Business Forecasting: The Emerging Role of Artificial Intelligence and Machine Learning. Gilliland, M., Tashman, L. & Sglavo, U. (eds.). Wiley, p. 164-170 7 p.

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter

  28. Published

    Will Deep and Machine Learning Solve Our Forecasting Problems?

    Kolassa, S., 1/04/2021, Business Forecasting: The Emerging Role of Artificial Intelligence and Machine Learning. Gilliland, M., Tashman, L. & Sglavo, U. (eds.). Wiley, p. 65-71 7 p.

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter

  29. 2020
  30. Published

    Why the “best” point forecast depends on the error or accuracy measure

    Kolassa, S., 31/03/2020, In: International Journal of Forecasting. 36, 1, p. 208-211

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

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