Typology, Identification and Diagnostics of Clusters of Firms: A New Methodological Approach

2010 ◽  
pp. 121-131
Author(s):  
G. Boush

The article presents the author's approach to typology of clusters of firms based on the categorical model "Row of informational criteria" (RIC). The sequence of informational criteria reflecting the logic of qualitative characteristics of clusters of firms is developed in the framework of the RIC categorical model. Based on the proposed approach the typology of clusters of firms, identification and primary diagnostics of Omsk agricultural cluster are implemented.

Insight ◽  
2021 ◽  
Vol 24 (4) ◽  
pp. 34-37
Author(s):  
Alan Gaignebet ◽  
Vincent Chapurlat ◽  
Grégory Zacharewicz ◽  
Robert Plana ◽  
Victor Richet

2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S810-S810
Author(s):  
Nelson A Roque ◽  
Martin J Sliwinski

Abstract We forward a methodological approach, using model-based cluster analyses, and ambulatory assessments of cognition (2 indicators from each task), to derive subgroups of interest for tailored clinical follow-up in a longitudinal framework. Community dwelling adults were asked to complete 14 consecutive days of ecological momentary assessments (EMAs) using smartphones, including measures of cognitive performance, and self-reported physical and mental health outcomes (e.g., stress, memory complaints, depression, pain). A stable four-cluster solution emerged, labelled as: (1) a high-risk cognitive group (13%; most memory complaints, slowest performing, more memory errors); (2) subjective risk group (42%; highest levels of somatic and cognitive complaints); (3) normative aging (28%; intermediate cognitive performance -- speed/accuracy); (4) super-cognitive agers (17%; fastest speed, best memory). In conclusion, these findings highlight the potential of a cluster-based approach for risk classification, uncovering different profiles of poor performance that may represent different etiologies.


Author(s):  
Teeba Ismail Kh. ◽  
Ibrahim I. Hamarash

<p class="0abstractCxSpFirst">The number of applications incorporating Internet of Things (IoT) concepts increases extraordinarily. This increase cannot continue without high-quality assurance. There are some difficulties in testing IoT applications; the system heterogeneity, test cost and time are taken to test the system, and the precision percentage of test results.</p><p class="0abstractCxSpLast">A well-known and possibly the best solution to overcoming these difficulties is to model the system for evaluation purposes, known as model-based testing (MBT). This paper aims to design a model-based testing approach to assess IoT applications performance quality attributes. The ISO 25000 quality model is used as a standard for software quality assurance applications. IoTMaaS is used as a case study to implement the methodological approach. The possible test cases were generated using the ACTS combinatorial test generation tool. The performance metrics of each test case were monitored until the optimum test case was identified, with the shortest response time and the least amount of resources used. The proposed testing method appears to be successful, according to the results.</p>


2019 ◽  
Vol 45 (2) ◽  
pp. 96-101 ◽  
Author(s):  
Roman Stupen ◽  
Mykhailo Stupenk ◽  
Zoriana Ryzhok ◽  
Oksana Stupen

The article deals with the main problems of creating the agricultural lands market in Ukraine due to the absence of the normative and legal support of its circulation, which should define the set of rights and restrictions of the implementation of this process. It is determined that the agricultural lands market is a social and economic complex that functions in accordance with market laws, national specificity, territorial scope and consists of a set of enterprises, establishments and representative offices, which are directly related to turnover of agricultural lands market. The main prerequisites for formation of effective functioning of the agricultural lands market are substantiated. Structural and logical scheme of this process implementation is constructed. Despite the ban on the purchase and sale of agricultural lands, the market value of land for private peasant farming has been calculated according to an expert assessment of a comparative methodological approach in determining the degree of similarity of objects using the Euclidean distance. The proposed method is appropriate to use in determining the market land value, regardless of its target use, by the degree of similarity of the objects of comparison according to the area, location, physical characteristics, functional characteristics and the availability of improvements, which allows to take into account its quantitative and qualitative characteristics.


Minerals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 777
Author(s):  
Tomasz Gawenda ◽  
Daniel Saramak ◽  
Agata Stempkowska ◽  
Zdzisław Naziemiec

Article concerns problem of jig beneficiation of mineral aggregates and focuses especially on problem of separation of hard-enrichable materials. Investigative programme covered tests in laboratory and semi-plant scale and material with different content of regular and irregular particles, along with various particle size fractions, was under analysis. Two patented solutions were utilized as methodological approach and densities and absorbabilities of individual products were determined and major novelty of approach consist in separate beneficiation of regular and irregular particles. Results of laboratory investigations showed that more favorable separation effectiveness was observed for the narrow particle size fractions of feed material. In terms of absorbability difference between separation products from I and IV layer was 0.4–0.5% higher for regular particles, and up to 0.5% higher for irregular grains. Differences in densities of respective products were 0.1% higher for regular particles. Results of semi-plant tests confirmed the outcomes achieved in laboratory scale. The qualitative characteristics of separation products in terms of micro-Deval and LA comminution resistance indices were one category higher for regular particles, and two categories higher for irregular grains, comparing to the raw material.


2020 ◽  
Vol 43 ◽  
Author(s):  
Peter Dayan

Abstract Bayesian decision theory provides a simple formal elucidation of some of the ways that representation and representational abstraction are involved with, and exploit, both prediction and its rather distant cousin, predictive coding. Both model-free and model-based methods are involved.


2001 ◽  
Vol 7 (S2) ◽  
pp. 578-579
Author(s):  
David W. Knowles ◽  
Sophie A. Lelièvre ◽  
Carlos Ortiz de Solόrzano ◽  
Stephen J. Lockett ◽  
Mina J. Bissell ◽  
...  

The extracellular matrix (ECM) plays a critical role in directing cell behaviour and morphogenesis by regulating gene expression and nuclear organization. Using non-malignant (S1) human mammary epithelial cells (HMECs), it was previously shown that ECM-induced morphogenesis is accompanied by the redistribution of nuclear mitotic apparatus (NuMA) protein from a diffuse pattern in proliferating cells, to a multi-focal pattern as HMECs growth arrested and completed morphogenesis . A process taking 10 to 14 days.To further investigate the link between NuMA distribution and the growth stage of HMECs, we have investigated the distribution of NuMA in non-malignant S1 cells and their malignant, T4, counter-part using a novel model-based image analysis technique. This technique, based on a multi-scale Gaussian blur analysis (Figure 1), quantifies the size of punctate features in an image. Cells were cultured in the presence and absence of a reconstituted basement membrane (rBM) and imaged in 3D using confocal microscopy, for fluorescently labeled monoclonal antibodies to NuMA (fαNuMA) and fluorescently labeled total DNA.


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