On the output theorem of queueing theory, via filtering

1978 ◽  
Vol 15 (2) ◽  
pp. 397-405 ◽  
Author(s):  
P. Brémaud
Keyword(s):  
Time Evolution ◽  
Queueing Theory ◽  
The State ◽  
Least Square ◽  
Least Square Estimate

We prove and extend Burke's output theorem for queues in equilibrium with the help of a filtering formula giving the time evolution of the least square estimate of the state with respect to the output.

On the output theorem of queueing theory, via filtering

1978 ◽  
Vol 15 (02) ◽  
pp. 397-405 ◽  
Author(s):  
P. Brémaud
Keyword(s):  
Time Evolution ◽  
Queueing Theory ◽  
The State ◽  
Least Square ◽  
Least Square Estimate

We prove and extend Burke's output theorem for queues in equilibrium with the help of a filtering formula giving the time evolution of the least square estimate of the state with respect to the output.

scholarly journals Movement Studies on a Hanging Glacier in Relation with an Ice Avalanche

1977 ◽  
Vol 19 (81) ◽  
pp. 671-672 ◽  
Author(s):  
André Flotron
Keyword(s):  
Flow Pattern ◽  
The State ◽  
Least Square ◽  
Velocity Versus ◽  
Surface Part ◽  
Different Types ◽  
Best Fit ◽  
Ice Avalanche

AbstractIn 1972 the state of a hanging glacier on the Weisshorn gave cause for alarm, as part of it seemed to be accelerating and a repetition of an earlier avalanche of ice seemed possible (see Röthlisberger, previous abstract). For this reason movement surveys were undertaken. The various surveying methods applied on the Weisshorn are outlined and the accuracy of the measurements is given. By least-square analysis different types of curves have been fitted to the data for velocity versus time. The best fit obtained so-far has been with hyperbolae. The confidence of extrapolations from such curves is discussed in relation to forecasts. By evaluating repeated photographs taken by an automatic camera from a single position, using a stereo plotter, the flow pattern has been established at the surface, part of the front, and one of the lateral faces of the ice mass. Changes with time caused by the deformation of the ice mass, the formation of crevasses and the crumbling away of the ice at the edge have been observed.

REVENUE DIVERSIFICATION AND BANKING RISK: DOES THE STATE OWNERSHIP MATTER? EVIDENCE FROM AN EMERGING MARKET

2020 ◽  
Vol 15 (04) ◽  
pp. 2050019
Author(s):  
GIANG THI HUONG VUONG ◽  
MANH HUU NGUYEN
Keyword(s):  
Commercial Banks ◽  
Emerging Market ◽  
Generalized Method Of Moments ◽  
State Ownership ◽  
The State ◽  
Least Square ◽  
Revenue Diversification ◽  
Income Diversification ◽  
Empirical Results ◽  
Banking Risk

Our paper investigates the influence of state ownership on the linkage between revenue diversification and risk of Vietnam domestic commercial banks in the period 2009–2018. By using the Generalized Method of Moments (GMM) estimation for a dynamic panel model, the empirical results indicate that Vietnamese domestic commercial banks with higher state equity are promoted to take more risks in the revenue diversification process. Our findings are robustly checked by a variety of measures of banking risk, income diversification, and state equity. Empirical results from our dynamic model are not only accordant with the previous findings of Batten and Vo [(2016). Bank risk shifting and diversification in an emerging market. Risk Management, 18(4), 217–235] estimated by Ordinary Least Square (OLS) regression on the positive relationship between banking risk and income diversification in Vietnamese domestic commercial banks but also provide new evidence on the tradeoff relationship between risk-return in the operating strategy of Vietnamese state-owned banks in the post-financial crisis. This paper proposes a framework for evaluating the nexus between revenue diversification and risk from the state ownership aspect in other frontier markets.

Estimating the structure of small dynamical networks from the state time evolution of one node

2013 ◽  
Vol 87 (1) ◽  
Author(s):  
Raffaele Autariello ◽  
Rhonda Dzakpasu ◽  
Francesco Sorrentino
Keyword(s):  
Time Evolution ◽  
The State ◽  
Dynamical Networks ◽  
State Time

Establishment of State Variable Model of Aeroengine with Improved Least Square Fitting

2010 ◽  
Vol 40-41 ◽  
pp. 27-33 ◽  
Author(s):  
Yi Hui Lin ◽  
Hai Bo Zhang
Keyword(s):  
Differential Equations ◽  
State Space ◽  
State Space Model ◽  
Model Fitting ◽  
The State ◽  
Least Square ◽  
Variable Model ◽  
Space Model ◽  
Fitting Method ◽  
Linear Differential

The method of state space model fitting is carried out by using the linear relation of the variable of the differential equations and separating the steady process and instant process to eliminate the steady errors course by instant errors. The improved fitting method is without solving the linear differential equations or using any iterative methods. The coefficient of the state space model can be solve simply using matrix operation under the premise of high accuracy, so it has a higher computational efficiency than former least square method. And this method can also be used with other fitting method. Finally, to illustrate the validity and accuracy of the improved method, a small perturbation state space model of a certain turboshaft engine model has been established by this method, and the simulation result between state space model and nonlinear model was also compared. Also, the state space model could be applied to fault diagnosis and control system design for aeroengines.

scholarly journals Estimated Birth Weight by current Weight-and Age During the First Five Days of Life

2018 ◽  
Vol 33 (3-4) ◽  
pp. 64-7
Author(s):  
Siswanto Agus Wilopo ◽  
Mohammad Hakimi ◽  
Achmad Surjono
Keyword(s):  
Birth Weight ◽  
Intraclass Correlation ◽  
Least Square ◽  
Coefficient Of Determination ◽  
Perfect Agreement ◽  
Paramedical Personnel ◽  
Least Square Estimate ◽  
Methodological Problems ◽  
A Current ◽  
Current Weight

In the developing countries, measurement of birth weight is subjected to methodological problems. The main issue is the difficulty of measuring birth weight soon after delivery. Two relevant questions are proposed by this study : 1) can a birth weight be estimated several hours or days after a baby was delivered ?, and 2) can an estimated birth weight be collected by paramedical personnel with reliable results? To answer these questions, we conducted a study at Dr. Sardjito Hospital, Yogyakana, to evaluate agreement between two paramedical personnel in the routine measurements of neonatal weight in the rooming-in ward. The behavior of these two paramedical personnel was observed from one month when they examined 32 neonates. Both of them weighed the neonate at 7.00 hours and one weighed the neonate at 15.00 or 21.00 hours. The order of the last two measurements was made alternatingly. This resulted in 156 pairs of measurement for agreement analysis. There was a strong evidence that the two raters have almost perfect agreement on measuring neonatal weights (intraclass correlation coefficient = 0.978). The second part of this study looked at neonatal weight during the first five days of life. The neonatal weights were measured three times a day up to age of the days. We constructed a formula for estimating their birth weight based on a current neonatal weight and age in days. Birth weight can be estimated using formula : Birth weight ; 51 + 1. 029 x current weight - 10 x age in days. The data fitted very well to this least square estimate with a coefficient of determination (R) = 0.95.

Financial Misappropriation in the Nigerian Public Sector: A Determination of the Role of the Internal Auditor

2017 ◽  
Vol 3 (2) ◽  
pp. 7-17
Author(s):  
J. K. Oyadonghan ◽  
S. Ogoun
Keyword(s):  
Public Sector ◽  
Research Effort ◽  
Internal Audit ◽  
The State ◽  
Least Square ◽  
Primary Data ◽  
Economic Management ◽  
Internal Auditor ◽  
Internal Auditors ◽  
The Public

The continued search for a solution to the problem of poor economic management due to financial misappropriation in the public sector, and the public’s outcry against internal auditors because of their perceived connivance necessitated the current study. Furthermore, the position canvassed by internal auditors with respect to their scope of responsibility further justified the need for this research effort. Accordingly, this study was undertaken to determine, whether or not, the internal auditor has a role to play in ensuring the proper utilization of the nation’s economic resources, bearing in mind the rules specifying the scope of the internal audit function in the public sector. Drawing from the research model of survey design, both a structured questionnaire and oral interview data collection platforms were deployed to collect primary data from audit, and another staff of selected ministries in the State and the least-square regression analysis was adopted in testing the hypotheses. From the analysis, and from personal interview, the researchers were able to find out that internal audit has a responsibility to detect and prevent financial misappropriation in the public sector. It was also found out that the internal auditors in the State Civil Service are not independent, which affects their freedom to report such acts of financial misappropriation to the legislative arm for proper action. Therefore, it is recommended that The State legislative arm should ensure that the independence of the internal auditor is guaranteed by a statute.

COLLAPSE AND REVIVAL EFFECT IN A MESOSCOPIC LC CIRCUIT

2004 ◽  
Vol 18 (08) ◽  
pp. 1217-1224 ◽  
Author(s):  
HAI-MEI LUO ◽  
YING-HUA JI ◽  
JIE LIU
Keyword(s):  
Time Evolution ◽  
Dynamic Behavior ◽  
Quantum State ◽  
Tunnel Junction ◽  
Coherent States ◽  
The State ◽  
Quantum States ◽  
Quantum Superposition ◽  
Coupling Energy ◽  
Lc Circuit

This paper studied the time evolution of quantum state in a mesoscopic LC circuit with the coupling energy caused by mesoscopic capacitor acting as a tunnel junction. It indicates that the state of the junction evolves into the quantum superposition of two coherent states and, in the state, nonclassical squeezing properties of the circuit appear. It also indicates that the dynamic behavior of the current shows collapse and revival phenomenon. The research in the paper will be helpful to miniaturize integrate circuits and electric components. It will be also important for the utilization of mesoscopic circuits to evolve the quantum states, which work as information carriers.

scholarly journals Modeling on population growth and its adaptation: A comparative analysis between Bangladesh and India

2020 ◽  
Vol 12 (4) ◽  
pp. 688-701
Author(s):  
A.N.M. Rezaul Karim ◽  
Mohammed Nizam Uddin ◽  
Masud Rana ◽  
Mayeen Uddin Khandaker ◽  
M. R. I. Faruque ◽  
...  
Keyword(s):  
Population Growth ◽  
Growth Model ◽  
21St Century ◽  
Least Square Method ◽  
Exponential Model ◽  
The State ◽  
Least Square ◽  
Logistic Growth ◽  
Projection Data ◽  
Logistic Growth Model

The biggest challenge in the world is population growth and determining how society and the state adapt to it as it directly affects the fundamental human rights such as food, clothing, housing, education, medical care, etc. The population estimates of any country play an important role in making the right decision about socio-economic and population development projects. Unpredictable population growth can be a curse. The purpose of this research article is to compare the accuracy process and proximity of three mathematical model such as Malthusian or exponential growth model, Logistic growth model and Least Square model to make predictions about the population growth of Bangladesh and India at the end of 21st century. Based on the results, it has been observed that the population is expected to be 429.32(in million) in Bangladesh and 3768.53 (in million) in India by exponential model, 211.70(in million) in Bangladesh and 1712.94(in million) in India by logistic model and 309.28 (in million) in Bangladesh and 2686.30 (in million) in India by least square method at the end of 2100. It was found that the projection data from 2000 to 2020 using the Logistic Growth Model was very close to the actual data. From that point of view, it can be predicted that the population will be 212 million in Bangladesh and 1713 million in India at the end of the 21st century. Although transgender people are recognized as the third sex but their accurate statistics data is not available. The work also provides a comparative scenario of how the state has adapted to the growing population in the past and how they will adapt in the future.

scholarly journals Effect of Internally Generated Revenue on Budget Implementation in Ekiti State

2019 ◽  
Vol 5 (2) ◽  
pp. 10
Author(s):  
Olaoye Clement Olatunji ◽  
Olugbamiye Olorunleke Dominic
Keyword(s):  
Causal Relationship ◽  
State Government ◽  
Secondary Data ◽  
The State ◽  
Least Square ◽  
Relative Impact ◽  
Causality Analysis ◽  
Use Of Time ◽  
Ordinary Least Square Regression ◽  
External Borrowing

The study examined the effect of internally generated revenue on budget implementation in Ekiti State. Specifically the study analyzed trends of components of internally generated revenue in Ekiti state including taxes, fines & fees, licenses, earnings and sales, interest and dividend, evaluated the relative impact of internally generated revenue components on budget implementation, and also  analyzed the causal relationship between internally generated revenue components and budget implementation in Ekiti state. The study made use of time series secondary data sourced from the annual budget of Ekiti state for a period of ten years spanning form 2007 to 2016. Data collated were analyzed with trend analysis, descriptive analyzes, correlation analysis, ordinary least square regression analysis and granger causality analysis. Result revealed that components of internally generated revenue in Ekiti State has increased considerably over the last ten years, relative impact of taxes on expenditure implementation stood at 4.754741(p=0.6232 > 0.05), relative impact of fines and fees on expenditure implementation stood at 0.354370 (P=0.9624 > 0.05), relative impact of licenses on expenditure implementation stood at 1.312830 (p=0.8427 > 0.05), relative impact of earnings and sales on expenditure implementation stood at 0.166495 (p=0.9877 > 0.05), relative impact of interest and dividend on expenditure implementation stood at 2.478020(p=0.7849 > 0.05), and that there is no causal relationship between components of internally generated revenue and expenditure implementation in Ekiti state. It was concluded that though internally generated revenue components identified in the study trended predominantly upwards over the last ten years, their relative impact on the level of budget implementation is not significant. More so the study established that there is no causal relationship between components of internally generated revenue and budget implementation. The study therefore recommended that Ekiti State Government should device a new framework for boosting the level of internally generated revenue in the state, in such a way that potentials and resources lying unused in the state will be harmonize to foster effective and efficient budget implementation. Government in the state should devise an Information Technology driven revenue mobilization mechanisms to ensure that revenue generated from all sources such as taxes, fines & fees, licenses, earnings & sales, interest and dividend are monitored and properly accounted for, also there is need for reduction of external borrowing that can culminate into excessive deduction in the statutory allocation, which could dampen the capacity of sustaining efficient level of budget implementation in the state.

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