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Search Results: 1 - 10 of 4440 matches for " Wong "
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A Novel Operational Partition between Neural Network Classifiers on Vulnerability to Data Mining Bias  [PDF]
Charles Wong
Journal of Software Engineering and Applications (JSEA) , 2014, DOI: 10.4236/jsea.2014.74027

It is difficult if not impossible to appropriately and effectively select from among the vast pool of existing neural network machine learning predictive models for industrial incorporation or academic research exploration and enhancement. When all models outperform all the others under disparate circumstances, none of the models do. Selecting the ideal model becomes a matter of ill-supported opinion ungrounded on the extant real world environment. This paper proposes a novel grouping of the model pool grounded along a non-stationary real world data line into two groups: Permanent Data Learning and Reversible Data Learning. This paper further proposes a novel approach towards qualitatively and quantitatively demonstrating their significant differences based on how they alternatively approach dynamic and raw real world data vs static and prescient data mining biased laboratory data. The results across 2040 separate simulation runs using 15,600 data points in realistically operationally controlled data environments show that the two-group division is effective and significant with clear qualitative, quantitative and theoretical support. Results across the empirical and theoretical spectrum are internally and externally consistent yet demonstrative of why and how this result is non-obvious.

Evaluating Online Shopping Service Quality—SERVEGAL in Taiwan Tourism Industry  [PDF]
Meiling Wong
Open Journal of Social Sciences (JSS) , 2014, DOI: 10.4236/jss.2014.29036

While SERVQUAL is the most extensively used measurements of service quality among industries nowadays and its five-dimension measured factors are investigated with respect to the customers’ reaction, E-SERVQUAL thus is developed amid traditional service industries to cope with the internet markets. Both two models use measured data based upon after purchased instead of pre- purchased which is considered as the main concern for service quality. Taking Magal’s instrument into account, which indicates three dimensions that possess the function of customers’ comments, customers’ demand and service planning to measure the service quality, we propose the SERVEGAL model to include customers’ recognition on service quality pre-purchasing. And a case study in tourism industry is applied to verify our proposal. The result of this study shows that SERVEGAL is not merely a service planning provider, but also a tool to accommodate with the customers’ expectation for service quality.

The Future of Public Sector HRM in Mauritius from an Accountability Perspective  [PDF]
Anita Ramgutty-Wong
Open Journal of Social Sciences (JSS) , 2014, DOI: 10.4236/jss.2014.23011

The collective vision of sustainable human development, as expressed by the international community in the UN Millennium Declaration, is a challenge for countries that are not adequately equipped to face the challenges of globalization. A key step in the right direction is the institutionalization of a transparent and accountable public sector that would be truly responsive to a country’s need. As in other parts of the world, Mauritius has embarked on reform programs in response to new opportunities brought about by globalization and the “rise” of Africa. Although public sector reform has appeared on the agenda of successive governments since early 1990s, many critics feel that the progress could have been faster and more substantial. In particular, the traditional omnipresent state has been much criticized for keeping bureaucratic red tape and inefficiency, and generally a poor level of accountability with respect to its obligations. Thus, in order to fully capitalize on the spreading trend of globalization and the immense opportunities offered by the “rise” of Africa, it becomes necessary to look into the reforms to the Public Services as far as human resource management is concerned. This paper lays down the state of affairs in this area and proposes an analysis of the pertinence and efficacy of such reforms from an accountability perspective. Many positive results are noted amongst those ministries that have implemented the Performance Management System, but many other findings are also problematic, such as: 1) Lack of clarity on how PLM is promoting organizational goals; 2) Many staffs unconvince that PMS will help improve their career prospects; 3) Few public sector organizations are able to use the PMS as a basis for staff training plans or for promotion decisions; 4) The appraisal forms are cumbersome and unrealistic; 5) PMS seems to be missing the point of addressing real management challenges; 6) Poor senior management “focus” and commitment to PMS. These findings echo what already exists in many case study reports and literature reviews, wherein we find that performance management systems seem to fall foul of their lofty ideals. Nevertheless, the Mauritian Public Sector has implemented a Performance-Based Budgeting (PBB) system, as a driving force behind the emphasis on identifying goals and measures. This complements the PMS in pushing public sector departments and ministries in the direction of aligning their activities, including HRM, toward achieving strategic goals and measuring progress

Combining Likelihood Information from Independent Investigations  [PDF]
L. Jiang, A. Wong
Open Journal of Statistics (OJS) , 2015, DOI: 10.4236/ojs.2015.51007
Abstract: Fisher [1] proposed a simple method to combine p-values from independent investigations without using detailed information of the original data. In recent years, likelihood-based asymptotic methods have been developed to produce highly accurate p-values. These likelihood-based methods generally required the likelihood function and the standardized maximum likelihood estimates departure calculated in the canonical parameter scale. In this paper, a method is proposed to obtain a p-value by combining the likelihood functions and the standardized maximum likelihood estimates departure of independent investigations for testing a scalar parameter of interest. Examples are presented to illustrate the application of the proposed method and simulation studies are performed to compare the accuracy of the proposed method with Fisher’s method.
Rectal Lymphoma: A Diagnostic Challenge  [PDF]
Koh Ging Wong
Open Journal of Gastroenterology (OJGas) , 2015, DOI: 10.4236/ojgas.2015.54004
Abstract: Rectal lymphoma is a rare colorectal tumor with incidence of 0.2% - 0.6%. We report a rare case of large rectal lymphoma. Our patient is a 48-year-old man, presented with 2 months history of per rectal bleed, altered bowel habits and weight loss. Clinical examination, computed tomography scan and initial endoscopic mucosal biopsy were indistinguishable from Rectal Carcinoma. With high level of suspicion, we resorted to full thickness punch biopsy in lithotomy position for a good tissue sample. Ultimately, an immunohistochemical study confirmed Diffuse Large B-cells Lymphoma (DLBCL). This case highlighted the importance of high level of suspicion for lymphoma when dealing with a rectal tumor. Accurate diagnosis of rectal lymphoma affects the treatment modalities and prognosis of the patient.
Deflationism, Rationalism, and Anti-Rationalism: Three Views of Superego Morality  [PDF]
Ching Wa Wong
Open Journal of Philosophy (OJPP) , 2015, DOI: 10.4236/ojpp.2015.56045
Abstract: Philosophers of psychoanalysis have for years been debating over Freud’s criticism of morality as a sheer product of irrationality originated in our superego development. In this paper I shall consider three views on Freud’s moral psychology, which I call the “deflationist”, the “rationalist”, and the “anti-rationalist” view. I argue that both the deflationist and the rationalist view are untenable, as they fail to distinguish among different senses of irrationality that we can attribute to morality. By contrast, I shall develop and defend an anti-rationalist view, to the effect that an inherently irrational superego is no threat to morality’s place in human life, as long as it’s capable of making us experience an integrated form of life. And as this desired interaction does not always come easily, we can naturally see the point of introducing psychoanalysis to our lives.
A Chi-Square Approximation for the F Distribution  [PDF]
L. Jiang, Augustine Wong
Open Journal of Statistics (OJS) , 2018, DOI: 10.4236/ojs.2018.81010
Abstract: F distribution is one of the most frequently used distributions in statistics. For example, it is used for testing: equality of variances of two independent normal distributions, equality of means in the one-way ANOVA setting, overall significance of a normal linear regression model, and so on. In this paper, a simple chi-square approximation for the cumulative distribution of the F-distribution is obtained via an adjusted log-likelihood ratio statistic. This new approximation exhibits remarkable accuracy even when the degrees of freedom of the F distribution are small.
Going beyond Sorting Waste into Different Bins: Responsible Production and Consumption of Toys  [PDF]
Kwok Shing Wong
Creative Education (CE) , 2018, DOI: 10.4236/ce.2018.93031
Abstract: Exposing children to concepts about sustainable development (SD) can be challenging because children might lack the life experience and the right levels of linguistic and cognitive skills to understand the complex issues surrounding SD. Coupled with other factors such as the teacher’s professional knowledge and limited teaching time available, the teaching of SD might become operationalised as the sorting of waste products into different types of bins in the early childhood curriculum. Using a single case study, I examined how a Hong Kong kindergarten empowered young children to contribute to sustainable development through targeting the production and consumption of an object type that is readily understood by children: toys. Based on classroom observations involving three age groups (K1: three-year-olds; K2: four-year-olds; K3: five-year-olds) and interviews with the principal, I found that the school had creatively adopted a whole school approach in order to support children’s gradual learning about sustainable development. At K1 the focus was on refusal: avoiding plastic toys in learning activities. At K2 the focus was on reuse. Knowledge related to the responsible production and consumption of toys was directly taught. At K3, the focus was on change: the children were to apply their previously acquired knowledge by producing toys for all children to share. Analyses of the interview data also revealed that going beyond the school level by partnering with parents in sustainable development had consequences for the school and the wider community.
A Note on Improving Inference of Relative Risk  [PDF]
Octavia C. Y. Wong
Open Journal of Statistics (OJS) , 2019, DOI: 10.4236/ojs.2019.91009
Abstract: Relative risk is a popular measure to compare risk of an outcome in the exposed group to the unexposed group. By applying the delta method and Central Limit Theorem, [1] derives two approximate confidence intervals for the relative risk, and [2] approximates the confidence interval for the relative risk via the likelihood ratio statistic. Both of these approximations require sample size to be large. In this paper, by adjusting the likelihood ratio statistic obtained by [2], a new method is proposed to obtain the confidence interval for the relative risk. Simulation results showed that the proposed method is extremely accurate even when the sample size is small.
Life Satisfaction and Quality of Life Enjoyment among Retired People Aged 65 or Older  [PDF]
Florence Mei Fung Wong
Open Journal of Social Sciences (JSS) , 2019, DOI: 10.4236/jss.2019.75009
Ageing is a global concern. Today, we emphasize healthy ageing with life satisfaction and better quality of life. The advanced technology in healthcare services and medical treatment has led to greater longevity. Although older people reach retirement age at 65, they continue to work for their career. Retirement can be a financial impact as the working older people cannot continue to earn money for their living. They need to rely on support from their family and the government. Retirement is also the factor to make dramatically changes in roles and responsibilities, authority, social network, and self-value. This study aimed 1) to examine the level of life satisfaction and quality of life enjoyment and 2) to identify relationships between demo-graphic characteristics and life satisfaction and quality of life enjoyment among older people aged 65 or older. The study results are significant to show the important areas to improve life satisfaction and quality of life enjoyment among older people aged 65 or older. Social relationship, particularly, support from family is the most important element to enhance life sat-isfaction and quality of life enjoyment in retired people.
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