Browsing by Author "Baxter, David"
Now showing 1 - 6 of 6
Results Per Page
Sort Options
Item Open Access Development of a Process Based Data Driven Engineering Design Knowledge Reuse System.(CAD Solutions (USA), 2006) Baxter, David; Gao, James X.This paper will describe the development of the web enabled version of a process based engineering design knowledge reuse system. The rationale for using the design process as a central element of knowledge management will be discussed. The system structure will be described. Evaluation of the prototype showed the most valuable attributes of system. Mapping the design process helped to create the product data model. Workshops were used to validate the system. A small number of product parameters are required for developing the product concept in the early stages. The research showed the importance of multi view validation and iteration in system development. It also showed the importance of graphics in design support. Key issues include: the importance of process capture, data model validation, the use of graphics in the interface, system design and system assessment.Item Open Access Investigating innovation practices in design: creative problem solving and knowledge management(Cranfield University, 2009-03-31) Baxter, David; El Enany, N.; Varia, K.; Ferris, I.; Shipway, B.; Rajkumar Roy; Essam ShehabThis paper describes a case study investigating two key aspects of innovation practice in an engineering company: creative problem solving (CPS) and knowledge management (KM). CPS methods offer benefit to organisations in developing novel solutions and improving operations. This research identified the key factors in applying CPS methods from the literature, and compared the creative practices of one engineering organisation with three creative organisations. KM practices can support the sharing and reuse of innovative practices and creative outcomes. A central conflict in adopting KM is codification vs. personalisation. This issue is discussed with reference to a KM framework proposal.Item Open Access Managing knowledge within the manufacturing enterprise: An overview(Inderscience Enterprises Ltd, 2009-01-01T00:00:00Z) Baxter, David; Roy, Rajkumar; Gao, James X.This paper examines the literature relating to manufacturing knowledge and describes how it contributes to the manufacturing enterprise. The review shows that there is a strong emphasis on design in the manufacturing knowledge research domain, and that detailed design is the main focus for current research. An analysis is carried out according to publication date and consequently trends are identified. The design focus is increasing, and the trends show that the domain is driven by industrial applications. The contribution to fundamental research in areas such as knowledge modelling is increasing. Areas that currently have little work in this domain include conceptual design and service.Item Open Access Manufacturing knowledge verification in design support systems(Taylor & Francis, 2009-12-01T00:00:00Z) Cochrane, Sean; Young, R.; Case, K.; Harding, J.; Gao, James X.; Dani, S.; Baxter, DavidThis paper identifies the need for a verification methodology for manufacturing knowledge in design support systems; and proposes a suitable methodology based on the concept of ontological commitment and the PSL ontology (ISO/CD18629). The use of the verification procedures within an overall system development methodology is examined, and an understanding of how various categories of manufacturing knowledge (typical to design support systems) map onto the PSL ontology is developed. This work is also supported by case study material from industrial situations, including: the casting and machining of metallic components. The PSL ontology was found to support the verification of most categories of manufacturing knowledge, and was shown to be particularly suited to process planning representations. Additional concepts and verification procedures were however needed to verify relationships between products and manufacturing processes. Suitable representational concepts and verification procedures were therefore developed, and integrated into the proposed knowledge verification methodology.Item Open Access A study of accountability in two organizational learning frameworks: why accountability for learning is critical(Wiley, 2017-03-16) Baxter, David; Colledge, Thomas; Turner, NeilIn this paper we examine the complex relationship between accountability and organizational learning through a case study with the UK Royal Air Force (RAF). Accountability is a complex and contradictory construct that has both positive and negative implications for organizational learning. Within the same organization we observed positive effects of accountability in one organizational learning system, and negative effects of accountability in another. This case study adds to the organizational learning and accountability literatures, showing that accountability to hierarchy, rather than preventing learning, can actually promote effective learning, making it more likely that people will report problems quickly and accurately and take follow-up action. This only applies if the learning objectives align with the broader accountability framework, and if reporting on failures will enhance individual reputation. If not, then people will tend to avoid reporting negative events in order to avoid punishment and reputation damage. Accountability to hierarchy is only negative if it conflicts with the learning objectives.Item Open Access Text classification method review(2007-04-01T00:00:00Z) Mahinovs, Aigars; Tiwari, Ashutosh; Roy, Rajkumar; Baxter, DavidWith the explosion of information fuelled by the growth of the World Wide Web it is no longer feasible for a human observer to understand all the data coming in or even classify it into categories. With this growth of information and simultaneous growth of available computing power automatic classification of data, particularly textual data, gains increasingly high importance. This paper provides a review of generic text classification process, phases of that process and methods being used at each phase. Examples from web page classification and spam classification are provided throughout the text. Principles of operation of four main text classification engines are described – Naïve Bayesian, k Nearest Neighbours, Support Vector Machines and Perceptron Neural Networks. This paper will look through the state of the art in all these phases, take note of methods and algorithms used and of different ways that researchers are trying to reduce computational complexity and improve the precision of text classification process as well as how the text classification is used in practice. The paper is written in a way to avoid extensive use of mathematical formulae in order to be more suited for readers with little or no background in theoretical mathemati