Profile Monitoring for Com Poisson Responses

2021 ◽  
Vol 23 (1) ◽  
Author(s):  
El-Housainy A.Rady ◽  
◽  
Hadel Z. Ahmed ◽  
Mohamed S.M. ◽  
Keyword(s):  
Phase I ◽  
Normal Distribution ◽  
Parametric Estimation ◽  
Quality Characteristic ◽  
Profile Monitoring ◽  
Response Variable ◽  
Explanatory Variables ◽  
Response Profiles ◽  
The Relationship ◽  
Over Time

In some real case problems, the relationship between a response variable and one or more explanatory variables called as profile should be monitored over time instead of the quality characteristic itself. Profile monitoring is used in such instances. Many researches have been done in the area of profile monitoring but in most of them it is assumed that the response variable follows normal distribution. In recent years Yeh et al. (2009) proposed 5 T2 based methods for monitoring logistic profiles in which response variable is binary and Amiri et al. (2011) evaluate two of the best T2 methods for Poisson response profiles monitoring in Phase I. In this paper we will obtain the form of the Com Poisson equation and parametric estimation.

scholarly journals Current research on profile monitoring

Production ◽  
2007 ◽  
Vol 17 (3) ◽  
pp. 420-425 ◽  
Author(s):  
William H. Woodall
Keyword(s):  
Control Charts ◽  
Functional Relationship ◽  
Simple Linear Regression ◽  
Profile Monitoring ◽  
Response Variable ◽  
Explanatory Variables ◽  
Data Points ◽  
The Stability ◽  
Over Time

In many applications the quality of a process or product is best characterized and summarized by a functional relationship between a response variable and one or more explanatory variables. Profile monitoring is used to understand and to check the stability of this relationship over time. At each sampling stage one observes a collection of data points that can be represented by a curve (or profile). In some calibration applications, the profile can be represented adequately by a simple linear regression model, while in other applications more complicated models are needed. The purposes of this paper are to review recent research on the use of control charts to monitor process and product quality profiles and to encourage further research in this area.

Ordinal logistic regression analysis of flight task ratings

2006 ◽  
Vol 110 (1109) ◽  
pp. 447-456
Author(s):  
R. Bradley ◽  
W. M. Maclaren
Keyword(s):  
Logistic Regression ◽  
Ordinal Logistic Regression ◽  
Practical Significance ◽  
Response Variable ◽  
Explanatory Variables ◽  
Ordinal Logistic Regression Analysis ◽  
Categorical Response ◽  
The Relationship ◽  
Ordered Categorical ◽  
Categorical Scale

Abstract The relationship between a pilot workload rating for a simulated flight task in the proximity of an offshore platform helideck and three experimental factors – wind speed, wind direction and pilot is investigated. The statistical method employed is ordinal logistic regression, which allows the specifying and fitting of regression relationships between ordered categorical response variables and explanatory variables. The response variable in this context is a pilot’s rating of the workload induced by certain flight tasks, measured on an ordered categorical scale 1 to 10. Estimates of the effects of the explanatory variables are given and their practical significance discussed.

scholarly journals The Relationship Democracy with Health and Governance Indicators: Panel Probit Approach

2021 ◽  
Author(s):  
Tuğçe Acar ◽  
Ebru Çağlayan Akay
Keyword(s):  
Freedom Of Expression ◽  
Political Stability ◽  
Probit Analysis ◽  
Infant Mortality Rate ◽  
Structural Factors ◽  
Explanatory Variables ◽  
Governance Indicators ◽  
The Impact ◽  
The Relationship ◽  
Over Time

The relationship of politics with health has been documented in Greece and Rome in ancient times and has been the center of attention from past to present. The difficulty of interpreting the causal relationships between politics and democracy and outcome measures as the macro-social determinants of population health has limited the studies in the field. On the other hand, in the state-society relationship, governance and indicators representing the traditions and institutions in which authority is applied in a country are used as a tool to evaluate the tendencies of countries in the field of democracy over time. Accordingly, the study aims to address the issue in the relationship between democracy and health, together with governance indicators, within the framework of broader structural factors. For this aim, panel probit analysis was carried out for 144 countries between 2010 and 2018, examining the effect of explanatory variables on the probability of occurrence of the dependent variable. The limited number of studies dealing with the impact of democracy studies on the international level and over time makes the method used advantageous. According to the findings, the variables of freedom of expression and accountability, political stability and regulatory quality, which are among the indicators of governance, were found to be statistically significant on the democracy index, along with the variables of domestic general government health expenditures, infant mortality rate, GDP per capita, and the reasons for the results obtained were discussed.

scholarly journals On the Usefulness of the Logarithmic Skew Normal Distribution for Describing Claims Size Data

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
E. Gómez–Déniz ◽  
E. Calderín-Ojeda
Keyword(s):  
Regression Model ◽  
Normal Distribution ◽  
Empirical Data ◽  
Lognormal Distribution ◽  
Empirical Distribution ◽  
Skew Normal Distribution ◽  
Response Variable ◽  
Explanatory Variables ◽  
The Right ◽  
Size Data

In this paper, the three-parameter skew lognormal distribution is proposed to model actuarial data concerning losses. This distribution yields a satisfactory fit to empirical data in the whole range of the empirical distribution as compared to other distributions used in the actuarial statistics literature. To the best of our knowledge, this distribution has not been used in insurance context and it might be suitable for computing reinsurance premiums in situations where the right tail of the empirical distribution plays an important role. Furthermore, a regression model can be simply derived to explain the response variable as a function of a set of explanatory variables.

scholarly journals MODEL DAN PELUANG TERJADINYA HUJAN BERDASARKAN KELEMBABAN MENGGUNAKAN REGRESI LOGISTIK BINER DI KABUPATEN MANOKWARI

2020 ◽  
Vol 16 (1) ◽  
pp. 34-37
Author(s):  
Inayatul Farach Ardianty ◽  
Indah Ratih Anggriyani
Keyword(s):  
Logistic Regression ◽  
Binary Logistic Regression ◽  
Regression Estimation ◽  
Response Variable ◽  
Nominal Scale ◽  
Explanatory Variables ◽  
Logit Transformation ◽  
Scale Response ◽  
The Relationship ◽  
Categorical Scale

Manokwari Regrency has a tropical climate. This results in significant rainfall. One factor that stimulates rain is humidity. By using binary logistic regression, the model an chance of rainfall based on humidity can be determined. Logistic regression analysis is used to determine the relationship between categorical  scale response variables and numeric or categoric scale explanatory variables. If response variable used is nominal scale with  two possoble value (0 and 1), then it is called binary logistic regression. Estimation of the model  is done by logit  transformation. The model produce in this  study is g(x) = -23.443 + 0.289  humidity. The accuracy of the model is 70.4 percent and the probability of rain for humidity lowering one unit will be reduced to 0.74.

Investment Traits and Intelligence in Adulthood

2013 ◽  
Vol 34 (2) ◽  
pp. 82-89 ◽  
Author(s):  
Sophie von Stumm
Keyword(s):  
Individual Differences ◽  
Personality Traits ◽  
Fluid Intelligence ◽  
Need For Cognition ◽  
Openness To Experience ◽  
Intelligence Tests ◽  
Crystallized Intelligence ◽  
New Knowledge ◽  
The Relationship ◽  
Over Time

Intelligence-as-knowledge in adulthood is influenced by individual differences in intelligence-as-process (i.e., fluid intelligence) and in personality traits that determine when, where, and how people invest their intelligence over time. Here, the relationship between two investment traits (i.e., Openness to Experience and Need for Cognition), intelligence-as-process and intelligence-as-knowledge, as assessed by a battery of crystallized intelligence tests and a new knowledge measure, was examined. The results showed that (1) both investment traits were positively associated with intelligence-as-knowledge; (2) this effect was stronger for Openness to Experience than for Need for Cognition; and (3) associations between investment and intelligence-as-knowledge reduced when adjusting for intelligence-as-process but remained mostly significant.

Power Values and Power Distance Moderate the Relationship Between Workplace Supervisory Power and Job Satisfaction

2020 ◽  
Vol 19 (3) ◽  
pp. 135-141
Author(s):  
Kenneth D. Locke
Keyword(s):  
Job Satisfaction ◽  
Multilevel Modeling ◽  
Power Distance ◽  
European Social Survey ◽  
Social Survey ◽  
The Relationship ◽  
Workplace Power ◽  
Over Time

Abstract. Person–job (or needs–supplies) discrepancy/fit theories posit that job satisfaction depends on work supplying what employees want and thus expect associations between having supervisory power and job satisfaction to be more positive in individuals who value power and in societies that endorse power values and power distance (e.g., respecting/obeying superiors). Using multilevel modeling on 30,683 European Social Survey respondents from 31 countries revealed that overseeing supervisees was positively associated with job satisfaction, and as hypothesized, this association was stronger among individuals with stronger power values and in nations with greater levels of power values or power distance. The results suggest that workplace power can have a meaningful impact on job satisfaction, especially over time in individuals or societies that esteem power.

Emotional Impact Feedback Changes How We Remember Negative Autobiographical Experiences

2010 ◽  
Vol 57 (5) ◽  
pp. 354-359 ◽  
Author(s):  
Melanie K. T. Takarangi ◽  
Deryn Strange
Keyword(s):  
Well Being ◽  
The Other ◽  
Personal Perspective ◽  
Emotional Impact ◽  
Potential Mechanism ◽  
Negative Experiences ◽  
Negative Memory ◽  
The Relationship ◽  
Negative Memories ◽  
Over Time

When people are told that their negative memories are worse than other people’s, do they later remember those events differently? We asked participants to recall a recent negative memory then, 24 h later, we gave some participants feedback about the emotional impact of their event – stating it was more or less negative compared to other people’s experiences. One week later, participants recalled the event again. We predicted that if feedback affected how participants remembered their negative experiences, their ratings of the memory’s characteristics should change over time. That is, when participants are told that their negative event is extremely negative, their memories should be more vivid, recollected strongly, and remembered from a personal perspective, compared to participants in the other conditions. Our results provide support for this hypothesis. We suggest that external feedback might be a potential mechanism in the relationship between negative memories and psychological well-being.

Rethinking social remittances and the migration-development nexus from the perspective of time

2013 ◽  
Vol 10 (1) ◽  
pp. 11-22 ◽  
Author(s):  
Peggy Levitt ◽  
Deepak Lamba-Nieves
Keyword(s):  
Social Influence ◽  
Change Over Time ◽  
Social Remittances ◽  
The Relationship ◽  
Migration And Development ◽  
Over Time

This article explores how the conceptualization, management, and measurement of time affect the migration-development nexus. We focus on how social remittances transform the meaning and worth of time, thereby changing how these ideas and practices are accepted and valued and recalibrating the relationship between migration and development. Our data reveal the need to pay closer attention to how migration’s impacts shift over time in response to its changing significance, rhythms, and horizons. How does migrants’ social influence affect and change the needs, values, and mind-frames of non-migrants? How do the ways in which social remittances are constructed, perceived, and accepted change over time for their senders and receivers?

Changing Places: Rock Art and Holocene Landscapes in the Wadi al-Ajal, South-West Libya

2014 ◽  
Vol 12 (2) ◽  
pp. 165-182 ◽  
Author(s):  
Tertia Barnett ◽  
Maria Guagnin
Keyword(s):  
Spatial Analysis ◽  
Surface Water ◽  
Rock Art ◽  
Human Settlement ◽  
Gis Model ◽  
South West ◽  
Settlement Location ◽  
Central Sahara ◽  
The Relationship ◽  
Over Time

This article examines the relationship between rock art and landscape use by pastoral groups and early settled communities in the central Sahara from around 6000 BC to 1000 AD. During this period the region experienced significant climatic and environmental fluctuations. Using new results from a systematic survey in the Wadi al-Ajal, south-west Libya, our research combines data from over 2000 engraved rock art panels with local archaeological and palaeoenvironmental evidence within a GIS model. Spatial analysis of these data indicates a correspondence between the frequency of rock art sites and human settlement over time. However, while changes in settlement location were guided primarily by the constraints on accessibility imposed by surface water, the distribution of rock art relates to the availability of pasture and patterns of movement through the landscape. Although the reasons for these movements undoubtedly altered over time, natural routes that connected the Wadi al-Ajal and areas to the south continued to be a focus for carvings over several thousand years.

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