Prediction and Comparative Analysis Using Ensemble Classifier Model on Leafy Vegetable Growth Rates in DWC and NFT Smart Hydroponic System

2022 ◽  
pp. 795-804
Author(s):  
P. Srivani ◽  
C. R. Yamuna Devi ◽  
S. H. Manjula
Keyword(s):  
Comparative Analysis ◽  
Growth Rates ◽  
Ensemble Classifier ◽  
Leafy Vegetable ◽  
Hydroponic System ◽  
Vegetable Growth

scholarly journals Evolución de la eficiencia técnica de la ganadería española en el marco de la Política Agraria Común (PAC) (1993-2005) = Evolution of the technical efficiency of Spanish livestock farming under the Common Agricultural Policy (CAP) (1993 to 2005)

2014 ◽  
pp. 57
Author(s):  
Cristina Hidalgo González ◽  
María Pilar Rodríguez Fernández
Keyword(s):  
Comparative Analysis ◽  
Technical Efficiency ◽  
Growth Rates ◽  
Agricultural Policy ◽  
Stochastic Frontier ◽  
Methodological Framework ◽  
Livestock Farming ◽  
The Common ◽  
La Red ◽  
Douglas Production Function

<p>Este artículo tiene como objetivo medir la eficiencia técnica de las Orientaciones Técnico Económicas ganaderas a partir de la información de la Red Contable Agraria Nacional para el período 1993-2005 y realizar un análisis comparativo entre las ramas ganaderas en función de sus niveles de eficiencia. El marco metodológico para medir la eficiencia será la función frontera estocástica propuesta por Battese y Coelli (1992), y la forma funcional elegida para su estimación es una Cobb-Douglas, la base de datos está constituida por un panel de 6 variables, 13 años y 11 orientaciones ganaderas. Los resultados de las estimaciones, indican que a lo largo del periodo los niveles de Eficiencia han disminuido y, del conjunto de orientaciones, son las ramas Bovinas las que presentan menores índices y tasas de variación mientras que las granívoras son las que obtienen los mejores resultados debido a su proceso de integración productiva.</p><p>The aim of this paper was to measure the technical efficiency of various sub-sectors of livestock farming in Spain on the basis of information released by the Spanish National Agricultural Accounting Network for the period 1993 to 2005, in order to perform a comparative analysis of these various sub-sectors and to attempt to determine the factors which affected their efficiency. The methodological framework for measuring the efficiency was the stochastic frontier function suggested by Battese and Coelli (1992) and the form chosen for it estimation was a Cobb-Douglas production function. The data base was composed with six variables, thirteen different accounting years and eleven types of livestock farming. The results of estimation indicate that, over the period considered, the efficiency levels decreased. The bovine sub-sector had the worst levels and growth rates, whilst the grain-fed sub-sector had the best results, probably because it is the most integrated.</p>

scholarly journals Comparative analysis of Aquaponics and Hydroponic systems

2021 ◽  
Vol 5 ◽  
pp. 31-43
Author(s):  
Vilma Petkova ◽  
Kristina Krusteva
Keyword(s):  
Life Cycle ◽  
Comparative Analysis ◽  
Middle Ages ◽  
Chemical Elements ◽  
Arable Land ◽  
Urban Environments ◽  
Controlled Environment ◽  
Food Crops ◽  
Hydroponic System ◽  
Hydroponic Systems

This article presents an analysis of the Aquaponics and Hydroponic systems. The principles of action have been known since the Middle Ages, but in present times they have developed due to an increase in the planet’s population, food and water scarcity, arable land, and environmental pollution. The Hydroponic system is groundless cultivation of food crops, mainly vegetables in a controlled environment. In Aquaponic system the nutrients circulates while combining the life cycle of suitable plants and aquatic fishes. This ensures the functioning of a system that resembles the circles of biogenic chemical elements in nature. Both systems are highly efficient and ecological cleaning, making them particularly suitable for use in urban environments.

scholarly journals The effect of sewage sludge application on the growth and absorption rates of Pb and As in water spinach

2016 ◽  
Vol 11 (1) ◽  
pp. 506-512
Author(s):  
Wang Rong ◽  
Liu Shiyu ◽  
Cai Linhao ◽  
Lei Jiangkai
Keyword(s):  
Sewage Sludge ◽  
Control Systems ◽  
Growth Rates ◽  
Dry Weight ◽  
Water Spinach ◽  
Vegetable Growth ◽  
Peak Absorption ◽  
Sludge Application

AbstractThis paper investigated the effect of the application of sewage sludge on the growth rates and absorption rates of Pb and As in potted water spinach. Our results indicated that application of sewage sludge promoted vegetable growth, and the dry weight of water spinach reached a maximal value (4.38 ± 0.82 g) upon 8% sludge application. We also found that the dry weights of water spinach after treatment were all greater than those of the control systems (CK). Treatment with sludge promoted the absorption of Pb and As in water spinach, with a significant (p < 0.05) increase of absorbed Pb following treatment concentrations above 10%, and a peak absorption of As at 8%. Finally, we found that concentrations of Pb and As were higher in rhizosphere-attached soil than in free pot.

The Transition from Distributive Pension System to Accumulative Type: The Results and Efficiency Forecast

2010 ◽  
pp. 43-60 ◽  
Author(s):  
O. Dmitrieva ◽  
N. Petukhova ◽  
D. Ushakov
Keyword(s):  
Comparative Analysis ◽  
Growth Rates ◽  
Transition Period ◽  
Pension System ◽  
Gdp Growth ◽  
Model Simulations ◽  
Operational Costs ◽  
Dual Burden

The paper presents comparative analysis of two models of pension system: accumulative and distributive (pay-as-you-go) ones based on Russian and world experience. It is shown that "the effect of dual burden" is formed within the transition period which lasts about 50 years and will reach its maximum in 22 years after the start of the reform. Under Russian conditions returns on pension capital fail to compensate for inflation and they are significantly lower than indexation of distributive pensions and wages growth rates. The model simulations have provided the following results: given the length of accumulation for 40 years; the longevity period - 19 years; employees-retirees ratio is going down, the accumulative pension system is likely to be more effective than the distributive one if returns on pension capital are not less than GDP growth rates and operational costs of the accumulative system are equal to zero. Otherwise the distributive pension system is more preferable.

Comparative Analysis of Drift Detection Based Adaptive Ensemble Model with Different Drift Detection Techniques

2021 ◽  
Vol 23 (06) ◽  
pp. 49-55
Author(s):  
Sanjeev Kumar ◽  
◽  
Ravendra Singh ◽  
Keyword(s):  
Data Mining ◽  
Comparative Analysis ◽  
False Positive ◽  
Opinion Mining ◽  
Concept Drift ◽  
Ensemble Classifier ◽  
Stream Data ◽  
Detection Techniques ◽  
Stream Data Mining ◽  
Detection Algorithms

Stream data mining is a popular research area these days. The concept drift detection and drift handling are the biggest challenges of stream data mining. Several drift detection algorithms have been developed which can accurately detect various drifts but have the problem of false-positive drift detection. The false-positive drift detection leads to the performance degradation of the classifier because of unnecessary training in between analyses. Classifier ensemble has shown its efficiency for drift detection, drift handling, and classification. But the ensemble classifiers could not detect the exact position of drift occurrence, so it has to update itself at some fixed interval, which leads to an unnecessary computational burden on the system. Combining the drift detection algorithm with an ensemble classifier can improve the performance and also solve the problems of false-positive drift detection and unnecessary updating of the ensemble classifier. In this paper, a model is proposed that creates a weighted adaptive ensemble classifier by updating it only when a drift detection signal is given by the used drift detection method. The proposed model is evaluated on text-based stream data for sentiment analysis and opinion mining with multiple drift detection algorithms and with multiple classification algorithms as base classifiers for the ensemble. A comparative analysis has been done, and the results have shown the efficiency of the proposed models.

scholarly journals Pension System as a Limitation Factor on the Development of the Economy of the Republic of Srpska

2019 ◽  
Vol 87 ◽  
pp. 41-55
Author(s):  
Zoran Mastilo
Keyword(s):  
Developing Countries ◽  
Comparative Analysis ◽  
Financial Markets ◽  
National Economy ◽  
Growth Rates ◽  
Pension System ◽  
Pension Systems ◽  
Developed Economies ◽  
The Republic ◽  
Society Today

Aim of this paper is to, by means of comparative analysis, demonstrate that contemporary pension systems are limitation factors of development of the Republic of Srpska, and that they should be reformed and improved. Ultimately, pension systems should be the basis for development of the Republic of Srpska. They should significantly improve strengthening of financial markets, enhancement of capital markets, higher growth rates of the Republic of Srpska, idecrease of unemployment. Private pension funds are to change the habits and ideas of every future insurance holder, aiming to make the pension rights a matter of concern of every individual, instead being the obligation and ballast of the society. Today, stabile financing of pension systems and their funds is becoming increasingly questionable. A gap is emerging between the area of rights gained by law and financial possibilities for their implementation. Pay-as-you-go (PAYG) systems, i.e. systems of inter-generation solidarityare particularly endangered. Adequate systematization of gathered data, i.e. evidence, should provide conclusions that pension systems are a limitation todevelopment of national economy. This claim is present in underdeveloped and developing countries, with developed economies also facing grave problems.

COVID-19 and Its Impact on Ukrainian Economy

2021 ◽  
pp. 6-14
Author(s):  
Volodymyr Onyshchenko ◽  
Svitlana Sivitska ◽  
Anna Cherviak
Keyword(s):  
Comparative Analysis ◽  
Growth Rates ◽  
Economic Situation ◽  
Economic Losses ◽  
Sources Of Information ◽  
Negative Results ◽  
The World ◽  
The Impact ◽  
Different Sources

The impact of COVID-19 on the economic situation in Ukraine is studied in the article. The growth rates of morbidity on the territory of Ukraine and other countries of the world are determined. The analysis is carried out and social and economic losses in various branches of economy are defined. List of implemented quarantine measures on the Ukraine territory, which had the most significant negative results, is determined. The branches of the economy that were able to continue their activities under quarantine and increase their profits are studied. A comparative analysis of the projected level of GDP from different sources of information for the next period is performed. Key elements of economic and social measures world countries for formation actual, effective and operative plan of minimization pandemic influence on Ukraine economy are analyzed by authors.

scholarly journals Settlement differentiation of vital comfort of population of European countries: a comparative analysis

2012 ◽  
Vol 2012 (1) ◽  
pp. 23-38 ◽  
Author(s):  
Olha Burova
Keyword(s):  
Comparative Analysis ◽  
Growth Rates ◽  
General Trend ◽  
European Countries ◽  
Western Countries ◽  
Trend Growth

The article compares settlement differentiation of vital comfort of European countries. In Western countries, trend growth rates of vital comfort with a decrease in the size of the settlement. In post-socialist countries, noticeable general trend of growth of these parameters with increasing size of the settlement.

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