Query : Principal component analysis
- Ferrer, Alberto5
- Hubert, Paul4
- Katarzyna Rymuza4
- Russ Hauser4
- Giossos, Yiannis Panteleimon3
- Héctor M. Pucciarelli3
- I. P. Semiletov3
- Luca Salvati3
- Sereti, Smaragda3
- T. Gao3
- Vincent Nzabarinda3
- Wanni Yang3
- Yeneayehu Fenetahun3
- A. Allam2
- A. Debernardi2
- A. Doğrul Selver2
- A. E. Anderson2
- A. Serita2
- Abdullahi Bala Alhassan2
- Aleksandra M. Zuk2
- Methods and Statistics392
- Biological Anthropology210
- Environmental studies158
- Architecture and Space Management92
- Cultural Heritage and Museology57
- Social Anthropology and Ethnology46
- History, Philosophy and Sociology of Sciences39
- Political Science35
- Economies and Finances24
- Archaeology and Prehistory21
- Art and Art History13
- Communication Sciences9
- Gender Studies6
- Classical Studies3
- Musicology and Performing Arts3
Study of the quality of wheat and flour destined for baking in a mill in the south of Brazil
Produção e qualidade estão cada vez mais andando juntas em todos os setores da indústria alimentícia. Na produção de farinha de trigo, características tecnológicas específicas precisam ser observadas para que a produção final tenha um uso assertivo quanto a finalidade de uso. Por isso, o objetivo de...
Investor Sentiment Index and Option Price Volatility Based on MIDAS Model: Evidence from China
The paper selects the transaction data of the option market and network data from June 1, 2015 to February 2, 2018. The principal component analysis is adopted to construct investor sentiment index. The OLS and MIDAS model are employed to study the influence of investor sentiment index on the option...
Learning Robust Low-Rank Representations
In this paper we present a comprehensive framework for learning robust low-rank representations by combining and extending recent ideas for learning fast sparse coding regressors with structured non-convex optimization techniques. This approach connects robust principal component analysis (RPCA) wit...
Pattern of genetic variability of Solanum habrochaites in its natural area of distribution
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Specific analysis of an euclid cloud: application to the questionnaires
In this article, a specific matching method is proposed to deal with questionnaires where certain answers are missing, thus avoiding the complete disjunctive coding. The specific method of analysis is presented in the general context of geometric data analysis for a euclid cloud and then particulari...
Congenital Heart Disease and the Emission of Developmental Toxicants in Alberta, Canada
The objectives of this study are: 1.To apply the Principal Component Analysis method (PCA) to determine the groupings of the mixtures of developmental toxicants. 2.To determine if there is non spatial correlation between rates of CHD and component groupings of mixtures of developmental toxicants.
Grammatical content in ELE teaching: Analysis of manuals at A2 level
grammar is a term with several meanings. It can be defined as the set of rules or as the manual containing the grammatical rules. The development of foreign language teaching started with the publications of first grammatical manuals. When we talk about grammar, in the context of language teaching,...
Proposition a model measure of the impact of the total quality management on the global performance : case study of Tunisian textile clothing industry
If the management of the industrial enterprise continually underwent some important philosophical and technological mutations (production in Just-to-time, Total Quality Management, robotics, new technologies of information, etc.), systems of assessment of the performance that are supposed to play a...
Ligophorus imitans (Monogenea) ectoparasite of Liza ramada (Teleostei) : I. Natural populations and morphological variability
International audience Different congeneric species of the genus Ligophorus are ectoparasites of mullets (Teleostei). Several species of Ligophorus which are strictly specific can coexist on the same host species. Due to the host migration between the sea and lagoons, these parasites guilds are subj...
Appreciation of the magistery and career plan: comparative analysis of the careers of the Land Pará Education Network and the Belémhttp Municipal Education Network://056f59b1-4d83-4bab-91d7d678d8c25a7f6This article aims to analyse comparatively the teaching careers of the State Pará Education Network and the Belém Municipal Education Network, with a view to sizing evidence of teaching appreciation. This is a bibliographic and documentary print search, the approach of which is qualitative. The analysis was based on what determines the national and local legal treasures on the career of teachers approved in the recent context of the fund policy, based on the following indicators: Form of Return, Career Structure and Minimum Training; career movement criteria; duration and composition of the working day; salaries and components of teaching remuneration; encouragement of continued training. The study showed that both networks adopt the call for tenders as the main method of entry and provide for the possibility of horizontal and vertical progression with a change in remuneration. Notwithstanding the provisions of Law No 11.738/08 concerning the 1/3 working day for extraclasse activities, neither of the two networks is complied with. It was also noted that the weight of gratuities as a component of teachers’ pay in the two networks in some situations amounts to more than 50 %. The challenge is to put into practice the current legislative achievements, many of which exist only in the letter of the law.
Este artigo tem por objetivo analisar comparativamente as carreiras docentes da Rede Estadual de Ensino do Pará e da Rede Municipal de Ensino de Belém, na perspectiva de dimensionar indícios da valorização docente. Trata-se de uma pesquisa de cunho bibliográfico e documental, cuja abordagem é qualit...
Source Identification of Cd and Pb in Typical Farmland Topsoil in the Southwest of China: A Case Study
Cd and Pb in farmland topsoil are controlled by many factors. To identify the source of potential toxic metals in the farmland topsoil around Mianyuan River, the chemical analysis and multivariate statistical analysis are performed in this study. The results indicate the following: (1) The concentra...
Upper-limb Power Test in Rock-climbing.
International audience : The goal of the present study was to validate a new ecological power-test on athletes of different levels and to assess rock climbers' profiles (boulderers vs. route climbers). 34 athletes divided into novice, skilled and elite groups performed the arm-jump board test (AJ)....
The euro-dollar exchange rate: a co-integration approach with structural break
‘titrebSummary’/titrebrebWhen studying macroeconomic data, it is often appropriate to introduce breaks in the statistical analysis. In particular, the technique of co-integration with structural disruption may be interesting. This article proposes an application of the Johansen et al. (2000) model i...
Chemical profiling and classification of illicit heroin by principal component analysis, calculation of inter sample correlation and artificial neural networks.
Physicians’ incentives to adopt personalised medicine: Experimental evidence
International audience We study physicians’ incentives to use personalised medicine techniques, replicating the physician’s trade-offs under the option of personalised medicine information. In a laboratory experiment conducted in two French Universities, prospective physicians played a real-effort g...
Urban-rural-natural gradient analysis with CORINE data: An application to the metropolitan France
International audience Urbanization and agriculture can be considered as main drivers of landscape change in many parts of the world, including France, producing particular interacting environmental gradients, which in combination with natural components, give rise to the urban-rural-natural (URN) g...
A Main Component Analysis in futsal according to game halves: A case study of an amateur futsal cup final. [Analysis of main components in indoor football according to the game: a case study in an amateur crown finish].
AbstractPrincipal Component Analysis (PCA) has not been used to assess the principal component (PC) of players´ external training loads (TL) in futsal. In addition, no previous study has analyzed the PC of players´ external TL depending on the half of the match in futsal. Thus, this study aimed to a...
PCA 4 DCA: The Application Of Principal Component Analysis To The Dendritic Cell Algorithm
As one of the newest members in the field of artificial immune systems (AIS), the Dendritic Cell Algorithm (DCA) is based on behavioural models of natural dendritic cells (DCs). Unlike other AIS, the DCA does not rely on training data, instead domain or expert knowledge is required to predetermine t...
Regional development trajectories of renewable energy: Evidence from French regions
International audience This article aims to study the regional development of renewable energies (RE) in France over the period 1990–2015. As a first step, Principal Component Analysis was used on the collected data, which led to a classification of RE's development into four sub-periods. The first...
Education for development at university level. why, and for what situations?
development education has been progressively popularised in Spanish universities in parallel with the extension of development cooperation between them. Development education has been seen as an opportunity to promote the university’s social engagement and promote values of solidarity and justice th...
International Mutual Funds Performance and Persistence across the Universe of Performance Measures
peer reviewed We process an exhaustive set of 147 portfolio performance measures and their variations, and identify 18 relevant dimensions using a Principal Component Analysis on a sample of 1,625 international equity mutual funds. We isolate three of the seven most informative factors that uncover...
The role of external and internal strategies in the choice of remuneration policies
This study, carried out in 252 Quebec companies, has shown that remuneration policies are more influenced by the organisation’s internal strategies than by their external strategies. More specifically, companies advocating autonomous work teams, full quality and participatory management are more inc...
Nutritional transition, associated factors and emergence of chronic diseases in Morocco : cross-sectional survey in Moroccan Adults
It is now well established that nutritional factors are the main determinants of the emergence of chronic diseases. In Morocco, there is currently no data to support this evidence, although this country is experiencing an epidemiological transition. The aim of the thesis was to study the relationshi...
Transcriptional analysis of left-sided colitis, pancolitis, and ulcerative colitis-associated dysplasia
BACKGROUND: It is unknown why patients with extensive ulcerative colitis (UC) have a higher risk of colorectal cancer compared with patients with left-sided UC. This study characterizes the inflammatory processes in left-sided UC, pancolitis, and UC-associated dysplasia at the transcriptional level...
Fusion of WorldView-2 and LiDAR data to map fuel types in the Canary Islands
Wildland fires are one of the factors causing the deepest disturbances on the natural environment and severely threatening many ecosystems, as well as economic welfare and public health. Having accurate and up-to-date fuel type maps is essential to properly manage wildland fire risk areas. This rese...