Search results for "train"

Adoption of Constrained Application Protocol

2016

Among billions of Internet enabled devices that are expected to surround us in the near future, many will be resource constrained, i.e., will have limited power supply, processing power and memory. To cope with these limitations, the Constrained Application Protocol (CoAP) has been recently introduced as a lightweight alternative to HTTP for connecting the resource limited devices to the Web. Although the new protocol offers solid technical advantages, it remains uncertain whether a successful uptake will follow, as it depends also on its economic feasibility for the involved stakeholders. Therefore, this paper studies the techno-economic feasibility of CoAP using a systematic methodologica…

Wireless strain gauge network — Best-hall measurement case

2014

Wireless sensor networks can be used to perform structural monitoring. Strain gauges, which can be glued on or integrated to the observed material, are the most common nondestructive sensing elements for measuring surface strain. Wireless strain gauge measurement system makes strain measurements more flexible while opening new targets of application in addition to those that traditional wired strain measuring systems can offer. We have implemented a long term strain measurement in a PVC-covered hall using wireless sensor network. In this paper we evaluate the functionality and suitability of the developed wireless system for this kind of monitoring. The paper discusses the experiences gaine…

Clustering categorical data: A stability analysis framework

2011

Clustering to identify inherent structure is an important first step in data exploration. The k-means algorithm is a popular choice, but K-means is not generally appropriate for categorical data. A specific extension of k-means for categorical data is the k-modes algorithm. Both of these partition clustering methods are sensitive to the initialization of prototypes, which creates the difficulty of selecting the best solution for a given problem. In addition, selecting the number of clusters can be an issue. Further, the k-modes method is especially prone to instability when presented with ‘noisy’ data, since the calculation of the mode lacks the smoothing effect inherent in the calculation …

Evaluation of the Measuring Active Drag system usability: An important step for its integration into training sessions

2010

This paper is the first stage of an iterative process aiming at the (re)design of a training device for swimming. The purpose of this study was to evaluate the usability of the Measuring Active Drag (MAD) system, a technical device for biomechanical evaluation and performance analysis. To do so, this study examines real activity of elite swimmers using this system. It was conducted within an activity-centred approach: the course-of-action technological research programme. Three international male swimmers volunteered to participate in the study. Two types of data were collected: (a) video recordings, and (b) verbalisations during post-protocol interviews. The data were processed in two step…

Discovering the Factors Influencing Students' Perception of the Educational Environment in the Context of Foreign Language Training in a Technical Hi…

2010

Computerized Attention Training Program and Vocal Ensemble Classes – means of Adolescent Attention Focusing Ability Development

2015

Nowadays adolescents encounter difficulties focusing on particular, effective and long-term activities. These difficulties depend on their age group development regularities. The aim of the research is to evaluate computer attention training software in comparison with vocal ensemble classes on the subject of adolescent attention focusing ability development. Participants – 24 adolescents (both sexes, average age 14 ± 0,87 years) were divided into three experimental groups – experimental group A (EGA), experimental group B (EGB) and control group (KG). Two methods of adolescent attention focusing skills development were tested:computer software package CogniPlus /Schuhfried, Austria/ was ap…

Improving the k-NCN classification rule through heuristic modifications

1998

Abstract This paper presents an empirical investigation of the recently proposed k-Nearest Centroid Neighbours ( k -NCN) classification rule along with two heuristic modifications of it. These alternatives make use of both proximity and geometrical distribution of the prototypes in the training set in order to estimate the class label of a given sample. The experimental results show that both alternatives give significantly better classification rates than the k -Nearest Neighbours rule, basically due to the properties of the plain k -NCN technique.

A Metamodeling Approach to Evolution

2001

With the increasing complexity of systems being modeled, analysis & design move towards more and more abstract methodologies. Most of them rely on metamodeling tools that employ multi-view models and the four-layer metamodeling architecture. Our idea is to use the metamodeling approach to classify and to constraint the possible evolutions of an information system with the effect to improve both detection of evolution conflicts and disciplined reuse. Within the domain of UML metamodeling, a refinement of the metamodel-level classification is proposed that includes bases for defining a metric of the evolution (in terms of distance between metamodels).

Challenges in developing in-service teacher training: Lessons learnt from two projects for teachers of Swedish in Finland

2017

Teacher education in Finland is widely respected and of high quality. However, there is a recognised need to develop the educational continuum from pre-service education to in-service training. This article deals with challenges connected to in-service teacher training. Based on two projects, consisting of seven one-month courses for teachers of Swedish in Finland, we reflect on the challenges we encountered during the three-year process. In our research, theory and practice, but also data and methods, have been intertwined, as we have studied the phenomenon by using exploratory practice (Allwright, 2003). The projects and the study were based on a thorough literature review. During the pla…

Case study of a Finnish training program for Chinese school principals

2013

Quality leadership training has a positive effect on school leaders. Although there is an increased interest in overseas training for educational leaders in China, little is known about the leadership practices and professional development of school leaders. This study explored Chinese school principals’ perceptions of leadership practices and professional development after undertaking a Finnish training program in October 2011. The data were collected by semi-structured interviews from six Shanghai principals and analyzed by inductive content analysis. The findings showed this training has affected Chinese principals’ work positively, including creating more effective leadership, handling …