Thursday, November 28, 2019
My Grandfathers Son
Introduction Clarence Thomas book, My Grandfatherââ¬â¢s Son explores his biography in terms of his childhood, life achievements and also his misfortunes in life. The memoir is based on a real-life story of Clarence Thomas. The narrative is inspiring and at the same time illustrates the challenges that individuals encounters in life. Clarence Thomas refers to himself as My Grandfatherââ¬â¢s Son since his grandfather played a key role in his upbringing.Advertising We will write a custom essay sample on My Grandfatherââ¬â¢s Son specifically for you for only $16.05 $11/page Learn More Clarence Thomas was born in 1948, in Georgia, Deep Southern part of United States. The book re-counts that, Clarence was brought up in a humble background. However, the divorce of his parents provided a new challenge in his life. The book asserts that, his mother was employed as a maid. Hence her income was not that enough to sustain major family obligations. Thomas (2 5) illustrates that, the money was too little to sustain the family; hence, to purchase sugar, breakfast cereal was an absolute nightmare to the family. The challenging economic conditions the family was experiencing compelled his mother to transfer caring role of him and his younger brother to Mr. Myers Anderson, their grandfather. Mr. Myers thus played a big responsibility in taking care of their education. Clarence Thomas went to school while living with his grandfather in his savannah home. The absent of a father figure in their lives contributed to the grandfather assuming the role. His grandfather was a supporter of racial discrimination. He believed that racial discrimination will only be eradicated when complete self-reliance is encouraged among the blacks. Besides, Myers Anderson ethics of a; being strict disciplinarian, hard work ethic and a figure-head provided a role model in the lives of Clarence and his brother. This greatly contributed to their sound and hardworking p ersonalities. This is illustrated in the examples in the book, for instance, he made Clarence and his brother to understand that by observing hard work, self-discipline, time-consciousness and obedience among other good habits, they would end up getting a salaried job. He adored the wise advices bestowed to him by his grandfather to the extent that, in most cases, he would match his grandfatherââ¬â¢s philosophy as only Godly. His grandfather had a small business dealing with fuel-oil from which he managed to get the savings to send him to a catholic school. Racism played a central role in American schools. Catholics schools in Georgia, where Clarence joined were of no exception. It was dominated with vast racial discrimination. The book illustrates that, at the time Clarence was at holy cross seminary school, only two black students had sustained the vice.Advertising Looking for essay on history? Let's see if we can help you! Get your first paper with 15% OFF Learn Mo re Holly Cross seminary school had constant fights against racial issues; however, the trust of black communities was still not shaken. Racial issue in school encouraged Clarence to work extra hard while in school, a virtue he had acquired from his grandfather. Also, the book points out that Clarence developed interests in the field of law while in school so as to allow him advocate for the racism issues in American society. By focusing in his dream, Clarence passed his exams and was admitted to Yale University to pursue a degree in law. However, at the university, it was not easy for him; he was exposed to harsher racial injustices because of his the black communities. Clarence encountered his first marriage at an early age which bore him a son. For him, balancing between marriage life and work proved futile and he resolved to compulsive drinking pattern, this, however, destabilized him financially. His drinking habits degenerated to the point of breaking his marriage. His good k nowledge of law allowed him to reconcile with his wife thus, once again establishing a good family. The book illustrates how Clarence character was shaped. It points out the role of his grandfather and great thinkers of the time such as Thomas Sowell. Equality is seen as some of his major strength. This is seen when he practices fairness for all races in a commission championing for employments rights of the black community. He further advocates for civil rights movements and strengthens the systems of transparency and fairness among all races. Reflecting on his youthful frustrations and the bias against the black communities, he handles his duties with biases deploying a defensive strategy and unjustly treating his enemies. He does take the opportunity of implementing major reforms, because the existing policies on racial matters are biased to extend of favoring the whites. This is illustrated when he works for the U.S government for some years and what he receives is an underpayme nt for his legal services. Clarence Thomas position as the Supreme Court justice of the America was not without a political engagement as pointed out in the book. Before being appointed to this position, he faced challenges of oppression from his former employee, Anita Hill and persecuted for his initiatives in implementing reform changes through the elimination of racist white groups. However, despite of all the challenges he underwent, the book shows that, his winning strategy has been his defenseless ego which is hidden among his foes. Conclusion The book, The Grandfathers Son, by Clarence Thomas illustrates the challenges that still exist in the American society. However, despite of these challenges, one can arise and be what he or she wants in life through hard work. Clarence gives us this lesson.Advertising We will write a custom essay sample on My Grandfatherââ¬â¢s Son specifically for you for only $16.05 $11/page Learn More He rose from a cha llenging childhood thus becoming the United States Supreme Court justice. In achieving goals in life, appreciations of mentors are important because they offer guidance and emotional support to oneââ¬â¢s ambition. In this connection, Mr. Myers Anderson played a vital role in instilling good qualities in Clarence. Works Cited Thomas, Clarence. My Grandfatherââ¬â¢s Son: A Memoir, New York; HarperCollins, 2007 This essay on My Grandfatherââ¬â¢s Son was written and submitted by user Javion C. to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.
Sunday, November 24, 2019
How the Early Success of Hewlett Packard Essays
How the Early Success of Hewlett Packard Essays How the Early Success of Hewlett Packard Essay How the Early Success of Hewlett Packard Essay Electric to draft a management style unique to Hewlett and Packard-a management style that was priceless in terms of success to the company. Parallels can be drawn to the lesson Louis Assize Imparted to his students that observation Is a powerful teacher; In fact he encouraged his students not to be content with Just what they saw but to proactively discover as much as possible on a given subject. By keenly observing the effect of the GE control-oriented management style from the top-level down to the factory floor, and observing the difference in results by proactively engaging in a different management style with the same employees, Packard gained invaluable Insight on how to manage his staff at his own company to reap innovative results. Some aspects of the success of Hewlett and Packard can be attributed to the adherence to the requirements for entrepreneurial management outlined by Peter Trucker. First of all, Packards eye-opening experience at General Electric was an eye-opener leading the founders to realize the importance of a top management team in the early stages of the venture and make it high priority; this realization in he early stages of growth is in adherence with Truckers recommendation to build a top management team before the venture reaches the point where it must have one (Trucker, Peter F. Innovation and Entrepreneurship. New York: Harper Collins, 1985. Peg 198) The assumption of an Informal management team at the early stages of the venture is an approach recommended by Trucker as well and that gave the HP team members time to learn and identify their strengths-eventually allowing for the top management to be the best suited for the roles and responsibilities, including he founders. Hewlett and Packard sought stable long-term growth and achieved this using financial foresight; the management made a decision not to assume long- term debt and made focused financial decisions that kept the company alive after World War II. Trucker states It explicitly In his requirement for financial foresight that the lack thereof is the most serious affliction of the new venture. Importantly, HP never made profit the first priority as a growing venture and conservatively financed new products-only expanding into markets where it did not come head-to-head with established competitors. The foresight evidenced by Hewlett and Packard is strongly snow Day ten Tact Tanat ten company Dulling was constructed so It could D converted into a grocery store in the event that the company failed. Last but not least, Hewlett and Packard as founders of the enterprise made a brilliant decision to identify their best roles in the early stages of the company; Trucker stresses the importance of the original entrepreneurs accepting their changing roles as the venture grows and the success of Hewlett and Packard can strongly be attributed to this. Drawing on their strengths, the two founders assumed positions best suited for the general good of the company; Packard became president and Hewlett was content with taking charge of product development. In addition to this, the two entrepreneurs recognized the importance of maintaining a relationship with underside mentor-someone from without the company who could provide objective advice. This relationship later led to opportunities for the company in terms of a relationship with Stanford that in turn brought top talent into the company-only edifying their position as a top-tech company.
Thursday, November 21, 2019
Macro Economics Essay Example | Topics and Well Written Essays - 1000 words - 3
Macro Economics - Essay Example This depicts that a greater percentage of the citizens in that country are striving to be in better places and constantly improving the state of the country through the concept of invisible hand. In India the economic condition is not that stable. This is because only a smaller portion of the population strives to make ends meet while a greater percentage is always dragging the country backwards economically because they donââ¬â¢t work hard and deliver. This is very challenging since the economy is always torn in an imbalanced proportion. Studies from economists behind this theory argue that it developed an idea of a subsistence level to model the theory. The economists claimed that if real Gross Domestic Product rose above this subsistence level of income, it would cause the population to increase and bring real gross domestic product back down to the subsistence level. In India the population is extremely high and this means that the real gross domestic product is always above the subsistence level of income thus bringing the gross domestic product back down to the subsistence level. The opposite happens in the United States of America and that is why the gross domestic product there is far better than that for India. Strong economic growth rate cannot be positive to high population growth. This is because when the population increases, resources for economic growth will be limited. This will therefore hinder growth in the economy due to the imbalance. This defect or problem can be prevented by factors such as controlling population growth by implementing birth policies. The birth rate should be moderate to make the resources adequate for the country3. When the country has a poor or weak growth rate it is a big hindrance to the economic growth. This is because there will be inadequate labor force in various organizations in the country. Labor is a fundamental factor of production and should therefore be supplied adequately in an economy. To offset this
Wednesday, November 20, 2019
History of Christian Thought - Final Exam Questions Essay
History of Christian Thought - Final Exam Questions - Essay Example They were concerned with the future consequences of the kingdom. They identified themselves as ââ¬Å"The Community of the Poorâ⬠and their social philosophies always favored the poor people (Frend, 27-28). Jesus Christ was given a violent death by his antagonists who crucified him onto a cross. The Jewish religion believed that the prophets usually sacrificed their lives as a martyr, and Jesus death occurred in a similar circumstance. Of course, being the ââ¬Å"Son of Godâ⬠, he resurrected himself within three days of his dying. Thus, his followers came to regard him as ââ¬Å"the true and faithful martyrâ⬠who sacrificed his life for the salvation of mankind (Frend, 54). Paul, a religious genius, shifted the Christian ideology away from Palestinian Judaism to the Jewish cultural centers in Europe and Asia Minor. According to him, although Christianity was a reform movement within Judaism, one could become a Christian only through a formal process of baptism to the r eligion. However, Paul had not respected the Christian followers at Jerusalem and they naturally opposed his philosophies (Frend, 89). 2. During the 2nd century, Rome emerged as the leading center in Christianity. According to the account in Clement I, the Roman Church was governed by presbyter bishops, instead of a single authoritative bishop. Hermasââ¬â¢ account suggests that different religious officials were responsible of carrying out different tasks: Clement was in charge of the foreign correspondence of the Church while other bishops or overseers were asked to monitor the area of hospitality and other charitable activities of the institution. During this time, Rome also started implementing beneficial activities for communities living beyond the city (Frend, 130). During 130-180, the Christian religion experienced the advent of the Gnostic movement. The movement advocated a form of Gentile Christianity, which encouraged its followers to encompass all kinds of knowledge and experience in their ultimate aim of achieving salvation centering around the divinity of Christ. Basilides, Valentinus, and Heracleon were three of the pioneering teachers of the movement, who working in Alexandria, spread its influence to Rome, Italy, Asia Minor and the Rhone valley. The Gnostic philosophy laid the foundation for the Alexandrian school of theology and Christian Platonism, which flourished in the subsequent centuries (Frend, 195). During this time, the Christian religion was retained its presence although in a smaller scale. During the second century, Christians had become almost a minority in certain places of the western world. By this time, new religious movements were also emerging which differed from Christianity in their basic ideals. Religious fanaticism had reached such a peak that, Christians being a minority began to be persecuted at different places of the Roman Empire. 3. During the 2nd and the 3rd centuries, the Roman Empire started to witness evidence of religious syncretism among its citizens. During the ancient time, the empire had been under the pagan influence after which the Christian religion had become popular among the people. Now, influences of other religions had started percolating into Christianity and the people had started to include these new practices within their existing
Monday, November 18, 2019
The cemetery of new century Research Paper Example | Topics and Well Written Essays - 2500 words
The cemetery of new century - Research Paper Example The places where these deceased are permanently homed and commemorated are therefore a kind of fusion between life and the afterlife. It is a place where the living can incorporate the sense of the dead into their lives, and the same for the inverse. Yet we find that cemeteries and crematoriums and other burial areas all have a sombre tone about them and a sort of morbidity. Even though we aim to incorporate them into our lives, we find that they are often in isolated locations, away from the hustle of life, and if they are in a centralized location, life tends to move away from it instead, driven by the grim aura surrounding it. But as time is progressing, perhaps so should this inconsistency. There is no reason why cemeteries should be away from modern life and society, and why they should be an area of grimness. Cemeteries can maintain their solitude and sanctity but in a way where they are integrated with our current lives and living areas, and that, in my view, is what the cemet ery of the new century. But first, it is important to recognize why there needs to be a shift in the ideology behind a cemetery in a first place. The most basic and traditional type of cemetery is what is commonly known as a monumental cemetery. This is perhaps the most popular sort of burial ground in the west (Curl, 1980). In a monumental cemetery, graves are covered either by concrete, marble or granite, and distinctly marked by a headstone or monument. Individual graves can be surrounded by a boundary wall or a fence, as can be grouped graves belonging to family members. Because monumental ceremonies host graves from a variety of families and people, there generally isn't a common caretaker to personally care for individual graves. Cemetery authorities are responsible for the maintenance of the general graveyard, and may therefore trim or mow the grass between graves, or perform maintenance work the common boundary of the cemetery, there operations are often labor-intensive and without a personal caretaker, may cause the cemetery to go into slight decline. Monumental cemetery caretakers often face criticism over this as it is these reasons which give monumental cemeteries a traditionally sombre look. Furthermore, as the caretakers are not responsible for the maintenance of the headstones found on each grave, they too may become damaged over the years, and without maintenance may lead to the sombre and grim look of the cemetery. Lawn cemeteries are similar to monumental cemeteries but the difference being that instead of headstones, commemorative plates or plaques set in grass are used to denote individual graves. Graves too are on ground level and simply covered in grass. Most graves are therefore not customized and tend to follow the standard pattern set by each cemetery. Lawn cemeteries seemed easier to maintain, and generally are so too, but families placing flowers and other objects on graves tend to clutter the cemeteries. Another problem with lawn ce meteries is that over time grass may grow over the plaques covering the graves. Memorial parks are similar to lawn cemeteries except that the plaques on the grave are generally completely uniform and often the graves all have a certain common form of death, such as all being casualties of a war perhaps. Natural
Friday, November 15, 2019
Detecting Plasma Leakage in Patients with DHF
Detecting Plasma Leakage in Patients with DHF CHAPTER 1: INTRODUCTION Dengue disease is one of the most rapidly spreading mosquito-borne viral disease in tropical and sub-tropical regions around the world. Dengue has become a major international public health concern. The incidence of dengue has grown dramatically around the world in recent decades. Over 2.5 billion people over 40% of the worlds population are now at risk from dengue. WHO currently estimates there may be 50ââ¬â100 million dengue infections worldwide every year. Dengue is transmitted to humans by the bite of Aedes mosquitoes. According to WHO (2014), ââ¬Å"Dengue causes a severe flu-like illness, and sometimes a potentially lethal complication called dengue haemorrhagic feverâ⬠. About 2.5% of those that are infected by dengue die since dengue has neither treatment nor vaccination.Plasma leakage is the major cause of mortality and morbidity in patients with dengue hemorrhagic fever. So that early recognition of plasma leakage and prompt initiation of appropriate treatment are vital. There are only few researches which are done for plasma leakage detection in patients with DHF. Dengue virus infections may be asymptomatic or may lead to undifferentiated fever, dengue fever (DF) or Dengue haemorrhagic fever (DHF) with plasma leakage that may lead to Dengue shock syndrome (DSS). DF is generally an acute febrile illness, with severe headache, myalgia, arthralgia and rashes. Leucopenia and thrombocytopenia may also be observed. Although DF may be benign, it could be an incapacitating disease with severe headache, muscle and joint and bone pains. Occasionally unusual haemorrhage such as gastrointestinal bleeding, hypermenorrhea and massive epistaxis may occur. Undifferentiated fever and classical dengue fever can be managed as any other viral fever with symptomatic treatment. However, often it is difficult to differentiate DF from DHF in the early phase (febrile phase) of the illness. DHF is characterized by the acute onset of high fever and is associated with signs and symptoms similar to DF in the early febrile phase. Plasma leakage is the hallmark of DHF which occurs soon after the end of the febrile phase. There is a tendency to develop DSS due to plasma leakage. Therefore suspected DF and DHF patients should be closely monitored to identify patients with DHF. The degree and the rate of plasma leakage in DHF can vary. It can be minimal in some patients while in others it can be very significant. The leak usually starts slowly, increases gradually, slows down and then ceases altogether at the end of leakage phase (usually within 48 hours from the onset). (Ministry of Health, 2012) 1.1 Description of the Research project The main purpose of this research study was to design a system to detect the plasma leakage in patients with DHF by analyzing patientsââ¬â¢ medical records .Further, by using this system doctors can intervene early treatment of shock. In recent years machine learning methods have been widely used in medical diagnosis. Medical diagnosis is one of major problem in medical application. Several research groups are working world wide on the development of neural networks in medical diagnosis. Neural networks are used to increase the accuracy and objectivity of medical diagnosis.Detecting plasma leakage is considered as a non-linear problem that shows the complex causal relationship between the variables. However, an artificial neural network that is suitable for problems of extreme complexity not addressable with conventional technologies, either by the conventional computer programming or statistical method. In this research project multilayer feed forward neural network was used to train and test medical records of patients with DHF and DF. The trained network used to test more records of DHF patients to see the network performance and in order to make system practical to use in a real time hospital setting. The diagnostic performance of the proposed network is validated with Receiver Operating Characteristics (ROC) analysis to evaluate the sensitivity and specificity. 1.2 Literature Survey 1.2.1 Current methods for plasma leakage detection 1.2.1.1 Hemoconcentration Currently, clinical identification of plasma leakage is difficult until DHF develops. The most common method of monitoring leakage relies on identification of haemo-concentration, determined by tracking changes in HCT measurements, with a rise of more than 20% from baseline considered evidence of significant leakage. However, this method can be rather insensitive, particularly if the patient is receiving parenteral fluid therapy, and it is also limited by the fact that an individualââ¬â¢s baseline value is rarely known. (Ministry of Health, 2012) 1.2.1.2 Ultrasonography Studies using ultrasound have demonstrated that pleural effusions, ascites and gall bladder wall oedema are common during the critical phase, and correlate with disease severity. In addition, serial ultrasound studies indicate that subclinical plasma leakage can be detected as days 2 to 3 of fever, and is better at predicting likely disease progression than other marker of plasma leakage such as HCT measurements. Gallbladder wall oedema appears to precede the development of ascites and effusions, and may therefore be a helpful early predictor of outcome. Thus ultrasonography is a useful monitoring tool, and where available, should be considered in the overall assessment during the febrile phase. However, there are certain limitations, particularly the lack of defined normal ranges for the parameters of interest, the variability in measurements obtained by different operators, and the lack of specificity of the findings. (Srikiatkhachorn, Krautrachue, Ratanaprakarn, al, 2007) 1.2.1.3 Chest X-Ray Chest X-ray is recommended to increase the sensitivity of detecting pleural effution. Pleural effusion detected clinically may not be obvious in a Chest X Ray (CXR)-PA, but may be seen only in a CXR right lateral decubitus film. (Ministry of Health, 2012) 1.2.2 Expert Systems An expert system can be divide into two sub-systems the inference engine and the knowledge base. The knowledge base represents facts and rules. The inference engine applies the rules to the known facts to deduce new facts. Inference engines can also include explanation and debugging capabilities CHAPTER 2: BACKGROUND AND THEORY 2.1 Vital Parameters 2.1.1 Pulse The pulse is how many times a minute that our arteries expand and contract in response to the heart. This rate is exactly equal to the heartbeat. 2.1.2 Pulse Pressure 2.2 Neural network 2.2.1 Artificial Neural network vs Biological Neural Network An artificial neural network is a mathematical model or computational model based on biological neural network. In other words, it is an emulation of biological neural system. An ANN is a network of highly interconnecting processing elements (neurons) operating in parallel. Natural neurons receive signals through synapses located on the dendrites or membrane of the neuron. When the signals received are strong enough (surpass a certain threshold), the neuron is activated and emits a signal though the axon. This signal might be sent to another synapse, and might activate other neurons.(Gershenson,2003) 2.2.2 Model of Neural Network Artificial neuron is a highly abstracted model of the natural neuron. Inputs of artificial neuron behave like synapse of a biological neuron which are multiplied by weights (strength of the respective signals), and then computed by a mathematical function which is called Transfer function (also known as Activation function) in order to determine the activation of the neuron. The model of a neuron also includes an externally applied bias (threshold) that has the effect of lowering or increasing the net input of the activation function. 2.2.3 Multilayer Feed forward (MLF) Neural Network A MLF neural network consists of neurons that are ordered into layers. The first layer is called the input layer, the last layer is called the output layer, and the layers between are hidden layers. A neural network that has no hidden units is called a Perceptron. However, a perceptron can only represent linear functions, so it isnââ¬â¢t powerful enough for the kinds of applications. A multilayer feed forward neural network can represent a very broad set of nonlinear functions. Therefore, it is very useful in practice. 2.2.4 Transfer function The behaviour of an ANN depends on both the weights and transfer function that is specified for the units. There are three transfer functions most commonly used for multilayer networks. 2.2.5 Supervised Learning Supervised learning is an approach to find the input-output relationship based from the training using a set of data. Fig. 2.6 represents the block diagram of supervised learning. Learning system is fed with the input data and generates output, which is then compared with the target to compute the error signal by arbitrator. The error is sent to the learning system for further training until the minimum value of error is generated. (Muhammad Akmal Sapon, 2011) 2.2.6 Backpropagation Algorithm The backpropagation algorithm is used in feed-forward ANNs. Artificial neurons are organized in layers and send their signals ââ¬Å"forwardâ⬠, and then the errors are propagated backwards. The network receives inputs by neurons in the input layer, and the output of the network is given by the neurons in the output layer. There may be one or more intermediate hidden layers. The backpropagation algorithm used for supervised learning. The network computes the error that is the difference between output and desired target and the backpropagation algorithm calculate how the error depends on the input, output and weights. The backpropagation technique reduces this error, until the ANN learns the training data. 2.2.7 Training the network CHAPTER 3: METHODOLOGY AND IMPLEMENTATION In this research project Microsoft Excel 2010 was used to analysis the collected data and MATLAB R2013a (8.1.0.604), 64-bit(win64) software was used as a tool to implement and to train the Neural Network. 3.1 Data Collection The records of 10patients with DHF and 6 patients with DF from September 2013 to April 2014which are obtained from centre for clinical Management of Dengue and Dengue Hemorrhagic fever government hospital in Negombo. The data consists of total 1081 instances which 164 instances belonged to the leaking phase and 139 instances belonged to the non-leaking phase. Each data consists of 10 variables such as heart rate, systolic and diastolic blood pressures, PCV, Temperature and all are coded as numeric values. The patients are both male and female between 18 to 60 years old and who have over 50kg weight. These measurements are taken at equally spaced time points (hourly) since the patient was admitted to the hospital. 3.2 Data Preparation One of the most important parts in data preparation is to determine the best variables that contribute to the decision-making. The data selection step requires some detailed knowledge of the problem domain and the underlying data. Therefore, the selections of the variables are based on the advice of the doctors and also the review of the literatures. Even though there are quite a number of variables entered into the Observation Chart, only five variables are identified as the important variables that contribute to the detection of plasma leakage. They are as follows, 3.3 Neural Network Training The training method was supervised training. Input vector contained 490 data for leakage phase and 591for non-leakage phase. The respective target for each was2-element class vector with a 1 in the position of the associated leaking or non-leaking. A two-layer feed-forward network with 20 sigmoid hidden neurons was created. The tansig(Tan-Sigmoid) is chosen as the transfer function for both hidden and output layers. The input vectors and target vectors are randomly divided into training, validation and test sets. From input vector 70% are used for training set,15% are used to validate that the network is generalizing and to stop training before overfitting, and the last 15% are used as a completely independent test of network generalization. The network was retrained until the network performance approach a satisfactory level (beyond 85%) of supervised training by using different training algorithms and increasing number of hidden neurons. 3.4 Testing The trained neural network saved and it was used to test the new dataset. The new dataset consist of 50 leakage phase and 50 non-leakage phase data. Correct classifications and misclassifications were recorded. CHAPTER 4: DATA AND ANALYSIS AND RESULTS 4.1 Performance Performance is measured in terms of mean squared error, and shown in log scale below figure 5.1. It rapidly decreased as the network was trained. Performance is shown for each of the training, validation and test sets. The version of the network that did best on the validation set is was after training. This figure does not indicate any major problems with the training. The validation and test curves are very similar.If the test curve had increased significantly before the validation curve increased, then it is possible that some over fitting might have occurred. 4.2 Confusion Matrix Confusion matrix contains information about actual and predicted classifications done by a classification system for supervised learning system. In confusion matrix, diagonal cells (in green cells) show the number of cases that were correctly classified, and the off-diagonal cells (in red cells) show the misclassified cases. The blue cell in the bottom right shows the total percent of correctly classified cases (in green) and the total percent of misclassified cases (in red). In this study, as shown in above figure 5.2, accuracy of training, testing and validation process are 90.9%, 80.9% and 79.0% respectively. Overall accuracy for correct classification is 87.6% and misclassification is 12.4%.Therefore the results show fairly good recognition. 4.3 Receiver Operating Characteristic (ROC) curves The coloured lines (green and blue) in each axis represent the ROC curves for training, testing and validation. The ROC curve is another visualization of quality of the network. It is a plot of the true positive rate (sensitivity) versus the false positive rate (1-specificity) as the threshold is varied. A perfect test shows points in the upper-left corner, with 100% sensitivity and 100% specificity. In this study, the network performs fairly good.
Wednesday, November 13, 2019
Perspectives of Psychology :: Humanistic Psychology Human Behavior Essays
Psychology as we all know is the scientific study of the behavior of humans and animals. The following paragraphs will compare and contrast Psychodynamic, Behavioral, and Humanistic perspectives of psychology. Each one of these perspectives searches for answers about behavior through different techniques and through looking for answers to different kinds of questions. Due to the different approaches, each perspective form their own assumptions and explanations. Some perspectives are widely accepted while others struggle for acceptance Carl Rogers and Abraham Maslow were the key people in developing the Humanistic Perspective, Sigmund Freud and Erik Erikson were the key people in developing the Psychodynamic Perspectives and American psychologist John B. Watson was the key person in developing the Behavioral perspective. The Psychodynamic Perspective focuses on unconscious mental activity. This perspective suggests that both normal and abnormal behaviors are determined primarily by unconscious forces (Davis And Palladino). The Behavioral Perspective focus on observable behaviors; but does not speculate about mental processes such as thinking (Davis And Palladino). It also focuses on learning in understanding how various behaviors occur. The Humanistic Perspective focuses on how people can come to achieve their fullest potential as individuals who make choices and who take control of responsibility for their mental, social, and personal experiences. It also emphasizes free will and individualsââ¬â¢ control of their own behavior (Davis And Palladino). The cognitive process which is defined as some composite cognitive activity; an operation that affects mental contents; the process of thinking; and the cognitive operation of remembering. The view of the cognitive process of The Behavioral Perspectives is due to private events not subject to scientific examination, best explained by examining the environment. The view of the cognitive process of The Psychodynamic Perspective is due to unconscious processes determine about 6/7 of our behavior. The cognitive process of The Humanistic Perspective is due cognition and emotions; and that behaviors are mostly determined by emotions. The Humanistic Psychology is influence by individual growth, personal responsibilities, and free will. The Psychodynamic Psychology is influence by unconscious mental process (needs and conflicts), and the Behavior Psychology is influence by interaction with other behavior and the environment.
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