scholarly journals On the Use of Self-Organizing Map for Text Clustering in Engineering Change Process Analysis: A Case Study

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Massimo Pacella ◽  
Antonio Grieco ◽  
Marzia Blaco
Keyword(s):  
Change Process ◽  
Good Practice ◽  
Text Clustering ◽  
Self Organizing Map ◽  
Use Of Self ◽  
Engineering Change ◽  
Engineering Changes ◽  
The Impact ◽  
Self Organizing

In modern industry, the development of complex products involves engineering changes that frequently require redesigning or altering the products or their components. In an engineering change process, engineering change requests (ECRs) are documents (forms) with parts written in natural language describing a suggested enhancement or a problem with a product or a component. ECRs initiate the change process and promote discussions within an organization to help to determine the impact of a change and the best possible solution. Although ECRs can contain important details, that is, recurring problems or examples of good practice repeated across a number of projects, they are often stored but not consulted, missing important opportunities to learn from previous projects. This paper explores the use of Self-Organizing Map (SOM) to the problem of unsupervised clustering of ECR texts. A case study is presented in which ECRs collected during the engineering change process of a railways industry are analyzed. The results show that SOM text clustering has a good potential to improve overall knowledge reuse and exploitation.

3D Model Annotation as a Tool for Improving Design Intent Communication: A Case Study on its Impact in the Engineering Change Process

2012 ◽  
Author(s):  
Gerardo Alducin-Quintero ◽  
Alejandro Rojo ◽  
Francisco Plata ◽  
Arturo Hernández ◽  
Manuel Contero
Keyword(s):  
New Product Development ◽  
Change Process ◽  
3D Model ◽  
Product Development Process ◽  
Cad Model ◽  
Design Intent ◽  
Engineering Change ◽  
Engineering Changes ◽  
Modeling Strategy ◽  
The Impact

This paper analyzes the impact of 3D model annotations on CAD user productivity in the context of the New Product Development Process. These annotations can provide valuable information to support an improved design intent communication. Comparably, they can play the same role as source code comments to support code maintainability in software engineering. A 3D CAD model is a geometry representation and it also stores the modeling strategy used to build it. Alteration of a complex CAD model usually represents a time consuming task due to the lack of an explicit explanation of the design rationale followed to build that 3D model. An experimental study conducted with Spanish and Mexican CAD students indicates that it is possible to reduce the time needed to perform engineering changes in existing models by between 13–26% by using annotations. Also some factors that affect the impact of annotations on the engineering change process such as part and alteration complexity were identified.

Analysing the Residential Market in Trójmiasto Using Self-Organizing Map

2021 ◽  
Author(s):  
Olgun Aydin ◽  
Krystian Zielinski
Keyword(s):  
Multidimensional Data ◽  
Residential Property ◽  
Self Organizing Map ◽  
Property Market ◽  
Residential Properties ◽  
Price Trends ◽  
Residential Market ◽  
Key Aspects ◽  
The Impact ◽  
Self Organizing

Although the residential property market has strong connections with various sectors, such as construction, logistics, and investment, it works through different dynamics than do other markets; thus, it can be analysed from various perspectives. Researchers and investors are mostly interested in price trends, the impact of external factors on residential property prices, and price prediction. When analysing price trends, it is beneficial to consider multidimensional data that contain attributes of residential properties, such as number of rooms, number of bathrooms, floor number, total floors, and size, as well as proximity to public transport, shops, and banks. Knowing a neighbourhood's key aspects and properties could help investors, real estate development companies, and people looking to buy or rent properties to investigate similar neighbourhoods that may have unusual price trends. In this study, the self-organizing map method was applied to residential property listings in the Trójmiasto area of Poland, where the residential market has recently been quite active. The study aims to group together neighbourhoods and subregions to find similarities between them in terms of price trends and stock. Moreover, this study presents relationships between attributes of residential properties.

Evaluating the impact of distributed culturally responsive leadership in a disadvantaged rural primary school in Ireland

2017 ◽  
Vol 47 (3) ◽  
pp. 457-474 ◽  
Author(s):  
Martin Brown ◽  
Gerry McNamara ◽  
Joe O’Hara ◽  
Stafford Hood ◽  
Denise Burns ◽  
...  
Keyword(s):  
Social Justice ◽  
Primary School ◽  
Distributed Leadership ◽  
Culturally Responsive ◽  
Good Practice ◽  
Culturally Responsive Leadership ◽  
Research Findings ◽  
Per Se ◽  
The Impact

This paper suggests that distributed leadership is a vital first step in making schools flexible enough to respond to new pressures. However, it is then argued that distributed leadership per se does not necessarily imply a commitment to a particular stance on issues of social justice, such as equality, but rather that this can only flow from leaders becoming culturally responsive to the diverse traditions and needs of the changing populations of their schools. We define this combination as ‘distributed culturally responsive leadership’. The second part of the paper attempts to illustrate this argument by closely examining the philosophy and actions of a particular principal who is regarded as an exemplar of good practice. The methodology used in the school case study is described and, finally, we provide a presentation and analysis of the data followed by a discussion of the research findings.

A Knowledge-Supported System for Engineering Change Impact Analysis

2003 ◽  
Author(s):  
Sha Ma ◽  
Bin Song ◽  
Wen Feng Lu ◽  
Cheng Feng Zhu
Keyword(s):  
Change Management ◽  
Impact Analysis ◽  
Raw Materials ◽  
New Technology ◽  
Integrated Design ◽  
Engineering Change ◽  
Change Impact Analysis ◽  
Change Impact ◽  
Engineering Changes ◽  
The Impact

Engineering changes are inevitable in a product development life cycle. The requests for engineering changes can be due to new customer requirements, emergence of new technology, market feedback, or variations of components and raw materials. Each change generates a level of impact on costs, time to market, tasks and schedules of related processes, and product components. Change management tools available today focus on the management of document and process changes. Assessments of change impact are typically based on the “rule of thumb”. Our research has developed a methodology and related techniques to quantify and analyze the impact of engineering changes to enable faster and more accurate decision-making in engineering change management. Reported in this paper are investigations of industrial requirements and fundamental issues of change impact analysis as well as related research and techniques. A framework for a knowledge-supported change impact analysis system is proposed. Three critical issues of system implementation, namely integrated design information model, change plan generator and impact estimation algorithms, are addressed. Finally the benefits and future work are discussed.

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