Aarhus University Seal / Aarhus Universitets segl

Erik Jørgensen

  1. 2003
  2. Published

    mimR - a statistical package for (among other things) estimation of sensitivity and specificity of diagnostic tests in absence of golden standard. / Højsgaard, Søren; Jørgensen, Erik; Edwards, D.

    Proceedings, (CD-rom communication). 2003. p. Abstract no 389.

    Research output: Contribution to book/anthology/report/proceedingConference abstract in proceedingsResearch

  3. 2002
  4. Published

    Circadian variation: Estimation of time at maximum. / Jørgensen, Erik.

    2002. 19 p. (Internal Report; No. 2002-01).

    Research output: Book/anthology/dissertation/reportReportResearch

  5. Published

    Diagnosing diagnostic tests: evaluating the precision of different approaches for estimation of sensitivity and specificity. / Toft, N.; Jørgensen, Erik; Højsgaard, Søren.

    Twentieth anniversary proceedings of a meeting held at Robinson College, University of Cambridge, England. 2002. p. 137-146.

    Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearch

  6. Published

    Diagnostic testing with multiple classification. / Toft, N; Nielsen, S S; Jørgensen, Erik.

    Proceeding of the First European Workshop on Sequential Decisions under Uncertainty in Agriculture and Natural Resources. 2002. p. 83-88.

    Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearch

  7. Published

    Dina research school. / Waagepetersen, Rasmus (Editor); Jørgensen, Erik (Editor).

    2002. 44 p. (Dina notat; No. 99).

    Research output: Book/anthology/dissertation/reportReportResearch

  8. Published

    Estimating parameters for stochastic epidemics. / Höhle, Michael; Jørgensen, Erik.

    2002. 51 p. (Dina Research Report; No. 102).

    Research output: Book/anthology/dissertation/reportReportResearch

  9. Published

    Estimation of farm specific parameters in a longitudinal model for litter size with variance components and random dropout. / Toft, Niels; Jørgensen, Erik.

    In: Livestock Science, Vol. 77, 2002, p. 175-185.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  10. Published

    Evaluation of height measurement for automatic weight assessment of slaughter pigs. / Jørgensen, Erik.

    2002. 9 p. (Technical Report; No. 2002-01).

    Research output: Book/anthology/dissertation/reportReportResearch

  11. Published

    Hybrid systems. / Jørgensen, Erik; Ravn, A P.

    Dina notat. Vol. 103 2002. (Dina notat; No. 103).

    Research output: Contribution to book/anthology/report/proceedingConference abstract in proceedingsResearch

  12. Published

    Mixed models applied in agricultural sciences II. / Højsgaard, Søren; Jørgensen, Erik.

    2002. 142 p. (Internal Report 2002; No. 03).

    Research output: Book/anthology/dissertation/reportReportResearch

  13. Published

    Reproductive performance of outdoor sow herds. / Larsen, Vivi Aarestrup; Jørgensen, Erik.

    In: Livestock Science, Vol. 78, 2002, p. 233-243.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  14. Published

    Sammenhæng mellem stimiljø og aggression hos slagtesvin under produktionsforhold. / Jensen, Karin Hjelholt; Vestergaard, Ellen-Margrethe; Jørgensen, Erik; Pedersen, B K.

    Bilag til Temamøde: Aggression hos søer og slagtesvin samt Strategisk fodring til styring af kødkvalitet: DJF intern rapport 162. 2002. p. 25-29.

    Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearch

  15. Published

    Storflokke - betydning af grupperingsstrategier og stiindretning. / Studnitz, Merete; Jensen, Karin Hjelholt; Jørgensen, Erik.

    DJF-Temamøde "Aggression hos søer og slagtesvin samt Strategisk fodring til styring af kødkvalitet".. Aarhus Universitet, Det Jordbrugsvidenskabelige Fakultet, 2002. p. 15-19 (DJF intern rapport 162).

    Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearch

  16. Published

     Dina workshop. Sequential monitoring in animal husbandry: Controlling error rates. / Toft, Niels (Editor); Jørgensen, Erik (Editor).

    2002. 9 p. (Dina notat; No. 98).

    Research output: Book/anthology/dissertation/reportReportResearch

  17. 2001
  18. Published

    Analysis of stratified data - objective evaluation of health status in Danish pig herds. / Højsgaard, Søren; Jørgensen, Erik.

    2001. 11 p. (Internal Report - Note).

    Research output: Book/anthology/dissertation/reportReportResearch

  19. Published

    Decision support systems in animal production: A Bayesian future. / Jørgensen, Erik.

    Proceedings of the Third European Conference of the European Federation for Information Technology in Agriculture, Food and the Environment. ed. / Jérôme Steffe. Vol. 2 2001. p. 367-372.

    Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearch

  20. Published

    Full-scale model experiments on airborne particle transport between pigs in a room. / Takai, Hisamitsu; Zhang, Guo-Qiang; Dahl, Preben Jensen; Bjerg, B.; Jørgensen, Erik; Nielsen, J.P.

    Proc. 6th int. symp. on livestock environment, Kentucky, USA. ASAE publ. 701P0201. 2001. p. 571-578.

    Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearch

  21. Published

    Lecture slides on mixed models based on a course in mixed models for use in animal health and animal welfare research. / Højsgaard, Søren; Jørgensen, Erik.

    2001. 373 p. (Internal Report 2001).

    Research output: Book/anthology/dissertation/reportReportResearch

  22. Published

    Mixed models applied in agricultural sciences based on a course in mixed models for use in animal health and animal welfare research. / Højsgaard, Søren; Jørgensen, Erik.

    2001. 133 p. (Internal report 2001; No. 06).

    Research output: Book/anthology/dissertation/reportReportResearch

  23. Published

    The effect of nose ringing on exploratory behaviour in gilts. / Studnitz, Merete; Jensen, Karin Hjelholt; Jørgensen, Erik; Jensen, K K.

    Proc. 25th Congress of ISAE. 2001. p. 55-55.

    Research output: Contribution to book/anthology/report/proceedingConference abstract in proceedingsResearch

  24. Published

    Tradeoff's in modeling epidemic disease in slaughter pig production. / Toft, N; Kristensen, A R; Jørgensen, Erik.

    Proceedings from the 3rd Conference of the European federation for information technology in agriculture, food and environment. ed. / J Steffe. Vol. 2 2001. p. 391-396.

    Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearch

  25. 2000
  26. Published

    A framework for decision support related to an infectious disease in slaughter pig production. / Toft, Nils; Kristensen, A R; Jørgensen, Erik.

    Proceedings of the symposium on Economic Modelling of Animal Health and Farm Management. 2000. p. 109-118.

    Research output: Contribution to book/anthology/report/proceedingConference abstract in proceedingsResearch

  27. Published

    Calibration of a Monte Carlo simulation model of disease spread in slaghter pig units. / Jørgensen, Erik.

    In: Computers and Electronics in Agriculture, Vol. 25, 2000, p. 245-259.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  28. Published

    Elements of Bayesian network specification in an animal health economy research project. / Jørgensen, Erik.

    2000. 24 p. (Internal Report; No. 2000-02).

    Research output: Book/anthology/dissertation/reportReportResearch

  29. Published

    Estimation of farm specific parameters in a longitudinal model for litter size with variance components and random dropout. / Toft, N; Jørgensen, Erik; Detlefsen, C.

    Pig Herd Management Modelling and information technologies related. ed. / L M Plà; J Pomar. 2000. p. 127-136.

    Research output: Contribution to book/anthology/report/proceedingReport chapterResearch

  30. Published

    Evaluation of SIR epidemic models in slaughter pig units using Monte Carlo simulation. / Jørgensen, Erik; Søllested, T A; Toft, N.

    Pig Herd Management Modelling and information technologies related. Edited by .). ed. / L M Plà; J Pomar. 2000. p. 27-36.

    Research output: Contribution to book/anthology/report/proceedingReport chapterResearch

  31. Published

    Management factors affecting activity and aggression in dynamic group housing systems with electronic sow feeding: a field trial. / Jensen, Karin Hjelholt; Sørensen, Linda Søndergaard; Bertelsen, D; Pedersen, Asger Roer; Jørgensen, Erik; Nielsen, N P; Vestergaard, K S.

    In: Animal Science, Vol. 71, 2000, p. 535-546.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  32. Published

    Modeling with LIMIDs - Examplified by Disease Treatment in Slaughter Pigs (In Pig Herd Management Modelling and information technologies related. / Höhle, Michael; Jørgensen, Erik; Nilsson, D.

    Pig Herd Management Modelling and information technologies related. ed. / L M Plà; J Pomar. 2000. p. 17-26.

    Research output: Contribution to book/anthology/report/proceedingReport chapterResearch

  33. Published

    Monte Carlo simulation models: Sampling from the joint distribution of State og Nature - parameters. / Jørgensen, Erik.

    Proc. of the symposium on "Economic Modelling of Animal Health and Farm Management" Wageningen, The Netherlands, novembe. 2000. p. 73-84.

    Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearch

  34. Published

    Multi-level hierarchic Markov processes as a framework for herd management support. / Kristensen, A R; Jørgensen, Erik.

    In: Annals of Operations Research, Vol. 94, 2000, p. 89.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  35. Published

    Multi-level hierarchic Markov processess as a framework for herd management support. / Ringgaard Kristensen, A.; Jørgensen, Erik.

    Annals of operational research 2000. Vol. 94 2000. p. 69-89.

    Research output: Contribution to book/anthology/report/proceedingBook chapterResearch

  36. Published

    Representing and Evaluating POMDP's with Limited Memory. / Nilsson, D; Jørgensen, Erik.

    Representations and Algorithms. 2000.

    Research output: Contribution to book/anthology/report/proceedingConference abstract in proceedingsResearch

  37. 1999
  38. Published

    A Bayesian network based monitoring system for sow management. / Jørgensen, Erik; Toft, Niels.

    1999. 22 p.

    Research output: Book/anthology/dissertation/reportReportResearch

  39. Published

    Decision Support Models. / Kristensen, A R; Jørgensen, Erik.

    Proceeding of the 25th International Dairy Congress. Future milk farming. Vol. 3 1999. p. 145-163.

    Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearch

  40. Published

    Influence of environmental stimuli on nest building and farrowing behaviour in domestic sows. / Thodberg, Karen; Jensen, Karin Hjelholt; Herskin, Mette S; Jørgensen, Erik.

    In: Applied Animal Behaviour Science, Vol. 63, 1999, p. 131-144.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  41. Published

    Management factors affecting aggression in dynamic group housing systems with electronic sow feeding - a field trial. / Sørensen, L S; Bertelsen, D; Jensen, K H; Pedersen, Asger Roer; Jørgensen, Erik; Nielsen, N P; Vestergaard, K S.

    In: Animal, Vol. 71, No. 3, 1999, p. 535-525.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  42. Published

    Stochastic Dynamic Modelling of Respiratory Diseases in Pigs. / Vestergaard, E M; Jørgensen, Erik.

    1999. Poster session presented at Conference Biology of Animal Stress. Implications for Animal Well-being, University of California, United States.

    Research output: Contribution to conferencePosterResearch

  43. 1998
  44. Published

    Bedre Beslutninger med Bayesianske Netværk. / Jørgensen, Erik; Lauritzen, S L.

    1998. 1998 p. (Dina Research Report; No. 72).

    Research output: Book/anthology/dissertation/reportReportResearch

  45. Published

    Bedre beslutninger med Bayesianske netværk. / Jørgensen, Erik; Lauritzen, S L.

    In: Naturens Verden, No. 7, 1998, p. 280-288.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleCommunication

  46. Published

    Dina Notat No 75. / Jørgensen, Erik (Editor).

    1998.

    Research output: Book/anthology/dissertation/reportReportResearch

  47. Published

    Edb letter beslutningen. / Jørgensen, Erik; Kristensen, A R.

    In: Landsbladet Svin, No. 11, 1998, p. 18.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleCommunication

  48. Published

    Stochastic Modelling of Pig Production Working Paper: Model of Management revision 1. / Jørgensen, Erik.

    1998. 1998 p. (Dina Notat; No. 71).

    Research output: Book/anthology/dissertation/reportReportResearch

  49. Published

    Stochastic Modelling of Pig Production Working Paper: Models of Measurements. / Jørgensen, Erik.

    1998. 1998 p. (Dina Notat; No. 64).

    Research output: Book/anthology/dissertation/reportReportResearch

  50. Published

    Stochastic Modelling of Pig Production Working Paper: Reproduction Model. / Jørgensen, Erik.

    1998. 1998 p. (Dina Notat; No. 65).

    Research output: Book/anthology/dissertation/reportReportResearch

  51. Published

    Stochastic modelling of pig production. / Jørgensen, Erik.

    1998. 23 p. (Dina Notat; No. 73).

    Research output: Book/anthology/dissertation/reportReportResearch

  52. Published

    Techniques for reuse of Monte Carlo simulation runs. / Jørgensen, Erik.

    1998. 33 p. (Dina Notat; No. 77).

    Research output: Book/anthology/dissertation/reportReportResearch

  53. 1997
  54. Published

    An Object Oriented Simulation Model of a Pig Herd with Emphasis on Information flow Mating Management. / Jørgensen, Erik.

    Dina Nota 56. 1997.

    Research output: Contribution to book/anthology/report/proceedingConference abstract in proceedingsResearch

  55. Published

    Calibration of a Monte Carlo Simulation Model of Disease Spread in Slaughter Pigs Units. / Jørgensen, Erik.

    Proc. First European Conference for Information Technology in Agriculture. The Royal Veterinary and Agricultural University, Copenhagen, Denmark. January 15-18 1997. (H. Kure, I Thysen & A.R. Kristensen, ed. 1997. p. 33-38.

    Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearch

  56. Published

    How to obtain those nasty standard errors from transformed data - and why they should not be used : Internal report. / Jørgensen, Erik; Pedersen, Asger Roer.

    Aarhus Universitet, Det Jordbrugsvidenskabelige Fakultet, 1997. 20 p.

    Research output: Book/anthology/dissertation/reportReportResearch

  57. Published

    Potential application areas for Bayesian Networks within sow production. / Jørgensen, Erik.

    1997. 11 p.

    Research output: Book/anthology/dissertation/reportReportResearch

  58. Published

    Principper bag almen beslutningsteori illustreret ved problemstilling fra soholdet. / Jørgensen, Erik.

    1997. 13 p.

    Research output: Book/anthology/dissertation/reportReportResearch

  59. Published

    Simultaneous optimization of management decisions at the operational and tactical level in animal production. / Kristensen, A.R.; Jørgensen, Erik.

    in Risk Management Strategies in Agriculture: State of the Art and Future Perspectives. Mansholt studies 7. Huirne, R.B.M. et al. ed. p 215-223. Proc. EUNITA seminar, January 7-10, 1996. Wageningen, The Netherlands.. 1997.

    Research output: Contribution to book/anthology/report/proceedingConference abstract in proceedingsResearch

  60. 1996
  61. Published

    A longitudinal model for litter size with variance components and random dropout. / Dethlefsen, C; Jørgensen, Erik.

    1996. (Dina Research Report; No. 50).

    Research output: Book/anthology/dissertation/reportReportResearch

  62. Published

    Determination of live weight of pigs from dimensions measured using image analysis. / Brandl, Nabil; Jørgensen, Erik.

    In: Computers and Electronics in Agriculture, Vol. 15, 1996, p. 57-72.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  63. Published

    Effects of varying content of soluble dietary fibre from wheat flour and oat milling fractions on gastric emptying in pigs. / Johansen, H N; Sandstrøm, B; Skjøth, F; Lærke, Helle Nygaard; Bach Knudsen, Knud Erik; Jørgensen, Erik.

    In: British Journal of Nutrition, Vol. 75, 1996, p. 339-351.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  64. Published

    Intermittent stress in pigs: effects on behaviour, pituitary-adrenocortical axis, growth and gastric ulceration. / Jensen, Karin Hjelholt; Pedersen, Lene Juul; Nielsen, E.K.; Heller, K.E.; Ladewig, J.; Jørgensen, Erik.

    In: Physiology & Behavior, Vol. 59, 1996, p. 741-748.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  65. Published

    Multi-level hierarchic Markov processes as a framework for herd management support. / Kristensen, A.R.; Jørgensen, Erik.

    1996. 29 p.

    Research output: Book/anthology/dissertation/reportReportResearch

  66. Published

    Pre- and postpubertal LH and estradiol pattern in gilts subjected to intermittent inescapable electroshock. / Pedersen, Lene Juul; Jensen, Karin Hjelholt; Jørgensen, Erik.

    In: Acta Veterinaria Scandinavica (Print Edition), Vol. 37, 1996, p. 153-161.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  67. Published

    Simultaneous optimization of management decisions at the operational and tactical level in animal production. / Kristensen, A.R.; Jørgensen, Erik.

    in Risk Management Strategies in Agriculture: State of the art and Future Perspectives. EUNITA seminar, January 7-10, 1996. Wageningen, The Netherlands. Dina Nota. 1996.

    Research output: Contribution to book/anthology/report/proceedingConference abstract in proceedingsResearch

  68. Published

    Systems for monitoring and decision support with respect to sow longevity. / Dethlefsen, C.; . Kristensen, A.R.; Jørgensen, Erik.

    NJF- Utredning/rapport 111. Proc. of NJF-seminar no. 265. LONGEVITY OF SOWS. (Ed. V. Danielsen). Research Centre Foulum, Marc. 1996. p. 109-119.

    Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearch

  69. Published

    Textbook notes of herd management: Basic concepts. / Kristensen, A.R.; Jørgensen, Erik.

    1996.

    Research output: Book/anthology/dissertation/reportReportResearch

  70. Published

    Textbook notes of herd management: From registration to information. / Jørgensen, Erik.

    1996. 30 p.

    Research output: Book/anthology/dissertation/reportReportResearch

  71. Published

    Textbook notes of herd management: Influence diagrams - potential use and current limitations. / Jørgensen, Erik.

    1996. 16 p.

    Research output: Book/anthology/dissertation/reportReportResearch

  72. Published

    Textbook notes of herd management: Monte Carlo simulation techniques. / Jørgensen, Erik.

    1996. 42 p.

    Research output: Book/anthology/dissertation/reportReportResearch

  73. 1995
  74. Published

    Applicational Perspectives of Recent Developments in Dynamic Programming Methods for Herd Management Support. / Kristensen, A.R.; Jørgensen, Erik.

    1995. 14 p. (Dina Notat; No. 33).

    Research output: Book/anthology/dissertation/reportReportResearch

  75. Published

    Intermittent stress in pigs: Behavioural and pituitary-adrenocortical reactivity. / Jensen, Karin Hjelholt; Pedersen, Lene Juul; Giersing Linder, A M; Heller, K.E.; Jørgensen, Erik; Ladewig, J.

    In: Acta Agriculturae Scandinavica, Section A - Animal Science, Vol. 45, 1995, p. 276-285.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  76. Published

    Midtvejsrapport for: Udvikling af hensigtsmæssige og velfærdsmæssigt forbedrede systemer og metoder til farende og diegivende søer- specielt sociale mekanismers udvikling og funktion i forskellige løsdriftssystemer til farende og diegivende søer. / Jørgensen, Erik; Dybkjær, Lise; Møller, F; Studnitz, Merete; Jensen, Karin Hjelholt.

    1995. 69 p. (Intern Rapport, VEL92-SH4 & VEL92-SJF4; No. 43).

    Research output: Book/anthology/dissertation/reportReportCommunication

  77. Published

    Modelling of Respiratory Disease. / Jørgensen, Erik; Kristensen, A R; Vestergaard, Ellen-Margrethe.

    1995. 18 p. (Dina Notat; No. 40).

    Research output: Book/anthology/dissertation/reportReportResearch

  78. Published

    Organisation and application of research and development in commercial pig herds: The Danish approach. / Pedersen, Bjarke Møller; Ruby, V; Jørgensen, Erik.

    Proceedings of the Fifth Biennial Conference of the Australian Pig Science Association (APSA). 1995.

    Research output: Contribution to book/anthology/report/proceedingConference abstract in proceedingsResearch

  79. Published

    Quality Evaluation of Equipment and Facilities. / Pedersen, B K; Ruby, V; Jørgensen, Erik.

    Proceedings of the Animal Behavior and the Design of Live-stock and Poultry Systems International Conference. 1995. p. 263-276.

    Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearch

  80. Published

    The application of Markov decision processes as a framework for decision support in animal production. / Kristensen, A R; Jørgensen, Erik.

    Proceedings of FACTs 95, Farm Animal Computer Technologies Conference. 1995. p. 136-145.

    Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearch

  81. Published

    Well-being in pregnant sows: Confinement versus group housing with electronic sow feeding. / Jensen, Karin Hjelholt; Pedersen, B.K.; Pedersen, Lene Juul; Jørgensen, Erik.

    In: Acta Agriculturae Scandinavica, Section A - Animal Science, Vol. 45, 1995, p. 266-275.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  82. 1994
  83. Published

    Dietary salbutamol and level of protein: effects on coping with acute stress in pigs. / Jensen, Karin Hjelholt; Oksbjerg, Niels; Jørgensen, Erik.

    In: Physiology & Behavior, Vol. 55, 1994, p. 375-379.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

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