Documents disponibles écrits par cet auteur

Articulate intervention revisited / Ormerod, R. J. in Journal of the operational research society (JORS), Vol. 61 N° 7 (Juillet 2010) 

Public ISBD [article]  in Journal of the operational research society (JORS) > Vol. 61 N° 7 (Juillet 2010) . - pp. 1078–1094 Titre : Articulate intervention revisited Type de document : texte imprimé Auteurs : Ormerod, R. J., Auteur Année de publication : 2011 Article en page(s) : pp. 1078–1094 Note générale : Recherche opérationnelle Langues : Anglais (eng) Mots-clés : Process  of  OR  Philosophy  of  OR  Popper  Pragmatism Index. décimale : 001.424 Résumé : Articulate Intervention by Hylton Boothroyd was published in 1978. It offered a description of OR based on experience. Boothroyd said his aim was to explore what can and cannot be meant by the idea of intelligently directing human affairs, about the place of articulating our thoughts before acting, about the place of consultants in business, industry and government, and about the place of formal methods. At the time the book was widely acclaimed by both academics and practitioners. This paper sets out the main ideas encapsulated in Articulate Intervention, examines how they stand up to more recent experience and speculates on their inherent philosophical position. It is concluded that 30 years on the ideas are still relevant today and can provide the basis of a variant of what Ulrich calls critical pragmatism. DEWEY : 001.424 ISSN : 0361-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v61/n7/abs/jors200947a.html [article] Articulate intervention revisited [texte imprimé] / Ormerod, R. J., Auteur . - 2011 . - pp. 1078–1094. Recherche opérationnelle Langues : Anglais (eng) in Journal of the operational research society (JORS) > Vol. 61 N° 7 (Juillet 2010) . - pp. 1078–1094 Mots-clés : Process  of  OR  Philosophy  of  OR  Popper  Pragmatism Index. décimale : 001.424 Résumé : Articulate Intervention by Hylton Boothroyd was published in 1978. It offered a description of OR based on experience. Boothroyd said his aim was to explore what can and cannot be meant by the idea of intelligently directing human affairs, about the place of articulating our thoughts before acting, about the place of consultants in business, industry and government, and about the place of formal methods. At the time the book was widely acclaimed by both academics and practitioners. This paper sets out the main ideas encapsulated in Articulate Intervention, examines how they stand up to more recent experience and speculates on their inherent philosophical position. It is concluded that 30 years on the ideas are still relevant today and can provide the basis of a variant of what Ulrich calls critical pragmatism. DEWEY : 001.424 ISSN : 0361-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v61/n7/abs/jors200947a.html

Justifying the methods of OR / Ormerod, R. J. in Journal of the operational research society (JORS), Vol. 61 N° 12 (Décembre 2010) 

Public ISBD [article]  in Journal of the operational research society (JORS) > Vol. 61 N° 12 (Décembre 2010) . - pp. 1694–1708 Titre : Justifying the methods of OR Type de document : texte imprimé Auteurs : Ormerod, R. J., Auteur Année de publication : 2011 Article en page(s) : pp. 1694–1708 Note générale : Recherche opérationnelle Langues : Anglais (eng) Mots-clés : Philosophy  of  OR  OR  methodology  Pragmatism Index. décimale : 001.424 Résumé : Operational research practitioners use mathematical, statistical, scientific, and other methods to structure and analyse issues in order to advise and assist their clients. In doing so they apply values, follow rules and use methodologies. The paper examines the justification of these methods, values and methodologies. Starting with a conceptual model drawn from the philosophy of science, a justification framework is developed for operational research (OR). Making a distinction between OR academic research and OR practice helps to clarify the issues. OR research is similar to scientific, mathematical and social science research; OR practice, as technology, is closer to engineering. While OR academic researchers will seek justification in the academic discipline within which they choose to work, it is argued that the justification of OR practice lies in its usefulness. For academic OR, justification lies in the justification of mathematics, statistics, science and social science; for practice, it is practitioners who decide what usefulness means in their context. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v61/n12/abs/jors2009147a.html [article] Justifying the methods of OR [texte imprimé] / Ormerod, R. J., Auteur . - 2011 . - pp. 1694–1708. Recherche opérationnelle Langues : Anglais (eng) in Journal of the operational research society (JORS) > Vol. 61 N° 12 (Décembre 2010) . - pp. 1694–1708 Mots-clés : Philosophy  of  OR  OR  methodology  Pragmatism Index. décimale : 001.424 Résumé : Operational research practitioners use mathematical, statistical, scientific, and other methods to structure and analyse issues in order to advise and assist their clients. In doing so they apply values, follow rules and use methodologies. The paper examines the justification of these methods, values and methodologies. Starting with a conceptual model drawn from the philosophy of science, a justification framework is developed for operational research (OR). Making a distinction between OR academic research and OR practice helps to clarify the issues. OR research is similar to scientific, mathematical and social science research; OR practice, as technology, is closer to engineering. While OR academic researchers will seek justification in the academic discipline within which they choose to work, it is argued that the justification of OR practice lies in its usefulness. For academic OR, justification lies in the justification of mathematics, statistics, science and social science; for practice, it is practitioners who decide what usefulness means in their context. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v61/n12/abs/jors2009147a.html

On abduction / Ormerod, R. J. in Journal of the operational research society (JORS), Vol. 63 N° 5 (Mai 2012) 

Public ISBD [article]  in Journal of the operational research society (JORS) > Vol. 63 N° 5 (Mai 2012) . - pp. 696–697 Titre : On abduction : a response to Mingers Type de document : texte imprimé Auteurs : Ormerod, R. J., Auteur Année de publication : 2012 Article en page(s) : pp. 696–697 Langues : Anglais (eng) Index. décimale : 001.424 DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v63/n5/abs/jors201188a.html [article] On abduction : a response to Mingers [texte imprimé] / Ormerod, R. J., Auteur . - 2012 . - pp. 696–697. Langues : Anglais (eng) in Journal of the operational research society (JORS) > Vol. 63 N° 5 (Mai 2012) . - pp. 696–697 Index. décimale : 001.424 DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v63/n5/abs/jors201188a.html

OR as rational choice / Ormerod, R. J. in Journal of the operational research society (JORS), Vol. 61 N° 12 (Décembre 2010) 

Public ISBD [article]  in Journal of the operational research society (JORS) > Vol. 61 N° 12 (Décembre 2010) . - pp. 1761–1776 Titre : OR as rational choice : a decision and game theory perspective Type de document : texte imprimé Auteurs : Ormerod, R. J., Auteur Année de publication : 2011 Article en page(s) : pp. 1761–1776 Note générale : Recherche opérationnelle Langues : Anglais (eng) Mots-clés : Decision  theory  Game  theory  Social  science  Philosophy  of  OR Index. décimale : 001.424 Résumé : Social science disciplines have used decision theory and game theory to provide metaphorical understanding and analytical rigour in their particular domains. The paper explores whether a similar perspective can be applied to operational research (OR) in order to provide an integrating theme for both theory and practice. It is argued that, while the methods of OR are instrumentally rational, OR interventions embrace non-instrumental aspects as well. A case study of an application of decision theory is described and analysed from a decision and game theory (DGT) perspective. The case demonstrates that although the model developed was instrumental, the structure and content of the model reflected the normative and communicative aspects of the decision context. The paper concludes that OR could use a DGT perspective as a conceptual framework for the teaching, research and practice of OR. DEWEY : 001.424 ISSN : 0160-5682 En ligne : www.palgrave-journals.com/jors/journal/v61/n12/abs/jors2009146a.html [article] OR as rational choice : a decision and game theory perspective [texte imprimé] / Ormerod, R. J., Auteur . - 2011 . - pp. 1761–1776. Recherche opérationnelle Langues : Anglais (eng) in Journal of the operational research society (JORS) > Vol. 61 N° 12 (Décembre 2010) . - pp. 1761–1776 Mots-clés : Decision  theory  Game  theory  Social  science  Philosophy  of  OR Index. décimale : 001.424 Résumé : Social science disciplines have used decision theory and game theory to provide metaphorical understanding and analytical rigour in their particular domains. The paper explores whether a similar perspective can be applied to operational research (OR) in order to provide an integrating theme for both theory and practice. It is argued that, while the methods of OR are instrumentally rational, OR interventions embrace non-instrumental aspects as well. A case study of an application of decision theory is described and analysed from a decision and game theory (DGT) perspective. The case demonstrates that although the model developed was instrumental, the structure and content of the model reflected the normative and communicative aspects of the decision context. The paper concludes that OR could use a DGT perspective as a conceptual framework for the teaching, research and practice of OR. DEWEY : 001.424 ISSN : 0160-5682 En ligne : www.palgrave-journals.com/jors/journal/v61/n12/abs/jors2009146a.html

Rational inference / Ormerod, R. J. in Journal of the operational research society (JORS), Vol. 61 N° 8 (Août 2010) 

Public ISBD [article]  in Journal of the operational research society (JORS) > Vol. 61 N° 8 (Août 2010) . - pp. 1207–1223 Titre : Rational inference : deductive, inductive and probabilistic thinking Type de document : texte imprimé Auteurs : Ormerod, R. J., Auteur Année de publication : 2011 Article en page(s) : pp. 1207–1223 Note générale : Recherche opérationnelle Langues : Anglais (eng) Mots-clés : Philosophy  of  science  Philosophy  of  mathematics  Philosophy  of  statistics;  method  of  OR  Bayes's  theorem Index. décimale : 001.424 Résumé : The paper reviews three modes of rational inference: deductive, inductive and probabilistic. Many examples of each can be found in scientific endeavour, professional practice and public discourse. However, while the strengths and weaknesses of deductive and inductive inference are well established, the implications of the emerging probabilistic orientation are still being worked through. The paper discusses some of the recent findings in psychology and philosophy, and speculates about the implications for scientific and professional practice in general and OR in particular. It is suggested that the probabilistic orientation and Bayesian approach can provide an epistemological lens through which to view the claims of different approaches to inference. Some suggestions for further research are made. DEWEY : 001.424 ISSN : 0361-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v61/n8/abs/jors200996a.html [article] Rational inference : deductive, inductive and probabilistic thinking [texte imprimé] / Ormerod, R. J., Auteur . - 2011 . - pp. 1207–1223. Recherche opérationnelle Langues : Anglais (eng) in Journal of the operational research society (JORS) > Vol. 61 N° 8 (Août 2010) . - pp. 1207–1223 Mots-clés : Philosophy  of  science  Philosophy  of  mathematics  Philosophy  of  statistics;  method  of  OR  Bayes's  theorem Index. décimale : 001.424 Résumé : The paper reviews three modes of rational inference: deductive, inductive and probabilistic. Many examples of each can be found in scientific endeavour, professional practice and public discourse. However, while the strengths and weaknesses of deductive and inductive inference are well established, the implications of the emerging probabilistic orientation are still being worked through. The paper discusses some of the recent findings in psychology and philosophy, and speculates about the implications for scientific and professional practice in general and OR in particular. It is suggested that the probabilistic orientation and Bayesian approach can provide an epistemological lens through which to view the claims of different approaches to inference. Some suggestions for further research are made. DEWEY : 001.424 ISSN : 0361-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v61/n8/abs/jors200996a.html

The relationship between operational research and systems thinking / Ormerod, R. J. in Journal of the operational research society (JORS), Vol. 62 N° 1 (Janvier 2011) 

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