Defect cause modeling with decision tree and regression analysis : a case study in casting industry

Download

index.pdf

Date

2007

Author

Bakır, Berna

Metadata

Show full item record

Item Usage Stats

359
views

116
downloads

In this thesis, we study improvement of product quality in manufacturing industry by identifying and optimizing influential process variables that cause defects on the items produced. Real data provided by a manufacturing company from the metal casting industry were studied. Two well-known approaches, logistic regression and decision trees, were used to model the relationship between process variables and defect types. The approaches used were compared.

Subject Keywords

Information Technology.

URI

http://etd.lib.metu.edu.tr/upload/12608427/index.pdf
https://hdl.handle.net/11511/16800

Collections

Graduate School of Informatics, Thesis

Suggestions

OpenMETU
Core

Adoption and utilization of information systems in an emerging Turkish industrial rown : a case study on Gaziantep Salihoğlu, Yasemin; Bilgen, Semih; Department of Information Systems (2003) This thesis analyzes factors motivating and inhibiting the adoption of information systems in enterprises in Gaziantep by a scale generated on Rogers̕ theory of diffusion of innovation. These factors are grouped into four as administrative, technological, environmental, and organizational characteristics in the scale built. Structured interview method was used while collecting the data. It was interviewed with 20 firms, operating in various sectors in Gaziantep. Results of the study showed that, within the ...
Smartproducts: technological applications vs user expectations Atacan Pamir, Naz; Erbuğ, Çiğdem; Department of Industrial Design (2010) This thesis focuses on the technological trends in smart products, and analyzes their conformity to the user expectations. The advances in computation technologies have totally revolutionized the product concept, and with the integration of microchips, software and sensors into the classical everyday objects, smart products, able to sense the context, reason about the sensed data and act according to the situation, have emerged. This new way of computing basing on the ubiquitous and calm computing visions, ...
The negative effect of technology-driven product design on user-product interaction and product usability Gültekin, Pelin; Erbuğ, Çiğdem; Department of Industrial Design (2004) In the last decades, the rapid change and prevalent use of technology are concerning, as they induced effects which mainly altered various encompassing contexts like consumer market dynamics and product development processes. Evidently, these transformations also affect the way users interact with products. It is observed that, technological novelties are applied in the competitive market as a tool for product differentiation. In addition, the rapid development of these technologies is a dominating factor o...
Assessing Information Technology Use in Organizations: Developing a Framework Sezgin, Emre; Özkan Yıldırım, Sevgi (2011-10-07) Increasing use of current and developing information technologies (IT) within business and production processes is a required transformation to survive in the market. However. IT should be well-managed to be adapted by an organization as a whole. This study proposes a new model for the assessment of IT use in organizations. The aim is to assist decision making processes in information technology management through exploring strength and weaknesses of organization on IT tools and applications. The model has ...
Process based information systems evaluation: Towards the attributes of "pRISE" Özkan Yıldırım, Sevgi; Bilgen, Semih (2007-10-31) Purpose The purpose of this paper is to demonstrate the importance of undertaking a systemic view of information systems evaluation that augments the frequently reported prescriptive (cost/benefit) analysis approaches. Design/methodology/approach The paper adopts a qualitative case perspective and derives a framework for substantive information systems evaluation factors (PRISE). Three empirical formulations are considered and a comparison made to determine the content and context of the findings. Finding...

Citation Formats

B. Bakır, “Defect cause modeling with decision tree and regression analysis : a case study in casting industry ,” M.S. - Master of Science, Middle East Technical University, 2007.