scholarly journals Linear Aggregation in Tree-based Estimators

Author(s):  
Sören R. Künzel ◽  
Theo F. Saarinen ◽  
Edward W. Liu ◽  
Jasjeet S. Sekhon
Keyword(s):  
2013 ◽  
Vol 2 (4) ◽  
pp. 253 ◽  
Author(s):  
Lenka Hudrlikova ◽  
Ludmila Petkovova

The aim of the paper is to provide a ranking of the Czech NUTS 3 regions based onsustainable development indicators. The original list of indicators was published by theCzech Statistical Office in 2008 and reviewedin 2010. In the analysis the same set ofindicators with the latest data was used. The indicators in each pillar are merged by meansof linear aggregation withweights derived from the principal component analysis.Because three pillars of sustainable development (environmental, economic and social)are assumed to be non-compensable, the multiple-criteria decision analysis is applied on apillar level in the final composite indicator. Both two main approaches – Borda andCondorcet were considered. Since the Borda approach leads to the compensability of theindicators, the Condorcet approach was in the spotlight. Advancedrules and adjustmentfor Condorcet approach were employed. Advantages and disadvantages of the methodsare provided. As a result more final rankings exist. The deep discussion about the resultsis provided. The special attention is paid to the capital city Prague, border regions, andindustrial regions. In addition, the correlation between final ranking and other indicatorsis tested.


2018 ◽  
Vol 17 (05) ◽  
pp. 1363-1398 ◽  
Author(s):  
Yen-Ching Chuang ◽  
Shu-Kung Hu ◽  
James J. H. Liou ◽  
Huai-Wei Lo

This paper proposes a decision model with a dashboard for systematically selecting and improving the performance of supplier in green supply chain management. The model combines both the decision-making trial and evaluation laboratory-based analytical network process (DANP) with a fuzzy integral method. The DANP method is used to construct the network system and derives the weights. The fuzzy integral method is applied to avoid inconsistent assumptions between the interdependence relation and linear aggregation for obtaining the aspiration-gaps of green suppliers. Last, the visualized dashboard allows for a clear representation of the interdependent-network structure of the attributes to assist companies in the selection of suitable suppliers, as well as assisting the suppliers in improving their performance with higher levels of service. A Taiwanese Electronics Company is demonstrated as an example. The results demonstrate that the dashboard can enable managers to make better decisions from a systematic perspective.


Author(s):  
Nilanjana Chakrabarty ◽  
Dibyojyoti Bhattacharjee

The term ‘digital divide' refers to the gap between individuals, households, businesses and geographic areas with regard to both their opportunities to access Information and Communication Technologies (ICT) and to their use of Internet. Composite indicators are regularly used for measuring the divide and in benchmarking the country's performance. But often it creates controversies regarding the subjectivity that is connected with their construction methodology more specifically the weighting and aggregation issues. The paper attempts to assess the robustness of the ranks generated by the composite digital divide index using different weighting and aggregation schemes in case of Asian countries. Here four weighting techniques Iyengar-Sudarshan Method, Benefit of Doubt Method, Principal Component Analysis and Unobserved Component Model and three techniques of aggregation viz. Linear Aggregation, Geometric Aggregation and Weighted Displaced Ideal Method are used for mutual comparison.


2019 ◽  
Vol 100 (1) ◽  
pp. 363-385
Author(s):  
Mahmoud Rezaei ◽  
Farshad Amiraslani ◽  
Najmeh Neysani Samani ◽  
Kazem Alavipanah

Econometrica ◽  
1958 ◽  
Vol 26 (2) ◽  
pp. 337
Author(s):  
Kenneth O. May ◽  
H. Theil

Author(s):  
Jianhui Liao ◽  
Yu Zhang ◽  
Wei Yu ◽  
Lina Xu ◽  
Cunwang Ge ◽  
...  

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