An exact algorithm to extract the generalized physical contradiction

Lei, Lin; Dubois, Sébastien; Guio, Roland De; Rasovska, Ivana

doi:10.1007/s12008-014-0250-3

Cited by 11 publications

(11 citation statements)

References 10 publications

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“…Some authors of this paper have sufficient experience with TRIZ applications and development. Therefore, it was decided that experimental situations would be built that applied ARIZ 85A and ARIZ 85C and the more recent TRIZ-based method for identifying contradiction from experiments (Lin et al, 2013) and (Lin et al 2015) to typical problems occurring in a standard and simple supply system in which feedback that would answer our questions is retained.…”

Section: Research Gapsmentioning

confidence: 99%

“…The second experimental situation addressed the same problem as in the first experiment, but the solving process was different. This experiment was intended to compare an automatic computerized approach based on a simulation developed in (Lin et al 2013) and (Lin et al 2015) as an alternative to the use of ARIZ 85A for obtaining a system of contradictions, which is the starting point for ARIZ 85C. The first point is that the method might enhance dramatically the delay of the initial analysis, at least in some complex situations.…”

Section: Description Of the Second Experimentsmentioning

confidence: 99%

“…Then, technical contradictions were defined with the search algorithm and method (cf. Figure 7) described in (Lin et al 2013) and the generalized physical contradictions associated with the technical contradictions were sought with the algorithm and method described in (Lin et al 2015). The obtained contradictions are then compared with those obtained in the previous experiment with ARIZ 85A.…”

Section: Description Of the Second Experimentsmentioning

confidence: 99%

“…This experience allowed us to understand why papers proposed to customize or rebuild the TRIZ matrix or later the inventive standard in the eco-design context; this is because it is not easy to map the technical parameters of the problems to those proposed in the TRIZ matrix. Experiment 2 shows that when simulation models of the existing GSC system are available, the identification of the contradictions can be replaced by computer search methods, as proposed by Lin et al (Lin et al 2013) and (Lin et al 2015). The second experiment illustrates the link between simulation, optimization and invention, which can contribute to automatize contradictions' extraction and to proposed relevant inventive solutions.…”

Section: Unique Contributionsmentioning

confidence: 99%

“…The second experimental situation addresses the same problem as in the first experiment, but the solving process uses the computerized method proposed in (Lin et al 2013) and (Lin et al 2015) rather than ARIZ 85A to state the contradictions to be solved. It is the first time this methodology has been applied to an SC problem.…”

Section: Introducing the Experimentsmentioning

confidence: 99%

See 4 more Smart Citations

Reviewing the use of the theory of inventive problem solving (TRIZ) in green supply chain problems

Moussa

Rasovska

Dubois

et al. 2017

Journal of Cleaner Production

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The purpose of the paper is to review the practice of the theory of inventive problem solving (TRIZ) in Green Supply Chain (GSC) problems and to identify new research challenges focusing on the question: "To what extent is it necessary to evolve TRIZ tools, methods and theoretical grounding for addressing GSC inventive problems?" First, a review of the past contributions of TRIZ based methods to GSC problem resolution is presented. As the result of the papers review did not provide a comprehensive understanding of the limitations and areas of potential application of TRIZ in GSC, three experiments were conducted to complete the literature review, in order to provide a more comprehensive answer to the posed question and identify research challenges. The experiments addressing GSC problems were also conducted to explore to what extent the more mature metamethods of classical TRIZ, namely ARIZ 85 A, C and the related sub-methods, can be used as in GSM problems. The examples were chosen to explore types of GSC problems that were not yet addressed with TRIZ. The experiment results highlight limitations on the use of the TRIZ in GSC inventive problems, which were not mentioned in the GSC literature. Moreover it highlights the limitation of using the more mature meta-methods of TRIZ (ARIZ 85A and ARIZ 85C) when the conflict to overcome contains more than two evaluation parameters and one action parameter. Finally, research challenges to overcome the limitations and to improve the use of TRIZ in GSC inventive problems are stated. Among them, methods for quickly establishing the existence of classical TRIZ contradictions or for informing the problem solver when no TRIZ contradictions are present in a given inventive problem in GSC should be proposed. Such methods would permit determining whether ARIZ 85C could be used and avoid a long and fruitless search for a system of contradictions. Find alternatives to the algorithms proposed in the past to be able to establish the generalized contradictions of inventive problems. Make evolve meta-methods ARIZ 85C or substitute it with methods which can address the inventive problems that cannot be treated by ARIZ 85C.

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Section: Research Gapsmentioning

confidence: 99%

Section: Description Of the Second Experimentsmentioning

confidence: 99%

Section: Description Of the Second Experimentsmentioning

confidence: 99%

Section: Unique Contributionsmentioning

confidence: 99%

Section: Introducing the Experimentsmentioning

confidence: 99%

See 3 more Smart Citations

Reviewing the use of the theory of inventive problem solving (TRIZ) in green supply chain problems

Moussa

Rasovska

Dubois

et al. 2017

Journal of Cleaner Production

Self Cite

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Automatic Extraction and Ranking of Systems of Contradictions Out of a Design of Experiments

Chibane

Dubois

Guio

2018

IFIP Advances in Information and Communication Technology

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HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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Feature Selection-Based Approach for Generalized Physical Contradiction Recognition

Ghannad

Guio

Parrend³

2020

IFIP Advances in Information and Communication Technology

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The objective of this paper is to improve a machine learning based methodology for recognizing the features of a Generalized Physical Contradictions (GPC) before knowing the contradiction itself when the system to be improved can be described by a simulated model based on design parameters and performance parameters. The paper starts with the background about identifying contradictions from data. It focuses on physical contradiction parameters identification with quantitative data and machine learning techniques. Although previous approaches are promising, they still have several drawbacks that require to be fixed. For instance, they do not propose any metric to inform the user about the quality of the result, which depends, among others, on the sample size. These drawbacks mainly appear in case of imbalanced data or complex relation between variables. To address these issues, we first tested different feature importance variable provided by decision tree methods (with the XGBOOST library) and retain the total gain. Second, we compared the XGBOOST methods with the previous proposed SVM based approach to see which one better describes the feature importance of variables involved in a GPC. As result XGBOOST was more robust to the noise from non-important variables. Third, we defined a set of measures for helping the user to know which is the sample size required to get good results with the tested methods.

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An exact algorithm to extract the generalized physical contradiction

Cited by 11 publications

References 10 publications

Reviewing the use of the theory of inventive problem solving (TRIZ) in green supply chain problems

Reviewing the use of the theory of inventive problem solving (TRIZ) in green supply chain problems

Automatic Extraction and Ranking of Systems of Contradictions Out of a Design of Experiments

Feature Selection-Based Approach for Generalized Physical Contradiction Recognition

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