Pride And Prejudice Impressions Essays - British Films,

Pride And Prejudice Impressions First impressions are very important. In the Victorian age, people based their whole opinion of someone on first impressions. Most times the first impression of someone is not the way they truly are. Sometimes a first impression can cause you to think negative of someone but later you find out that they are very nice and a very positive person. One example is when Mr. Darcy meets Elizabeth in the book ,Pride and Prejudice. Elizabeth thinks Mr.darcy is a cruel and arrogant person, but she later finds out that he is not. Also in, Pride and Prejudice when Elizabeth meets Mr. Wickham she gets the impression that he is very nice and gentlemen like, but she finds different with him too. In the story " The Importance of being Ernest" Lady Bracknell does not like Jack because he does not have any money and does not live up to her standards, but little does she know. In "Pride and Prejudice" by Jane Austen, Elizabeth thinks Mr. Darcy is a very rude and self centered person based on what she saw the first time they met or actually the first time they saw each other. Elizabeth over heard Mr. Darcy talking to Mr. Bingley at a ball and didn't really like what she heard. "She is tolerable; but not handsome enough to tempt me." ( Austen 12) Mr. Darcy thinks he is much to good for some people and has very high expectations. at one point n Beck 2 the story Mr. Darcy starts to fall in love with Elizabeth. Elizabeth knows he has changed but relizes he is beginning to act like Mr. Bingley. " In vain have I struggled. It will not do. My feelings will not be repressed. You must allow me to tell you how ardently I admire and love you." (Austen 161) Elizabeth does not have the same feelings for him, and why should she he was very rude and arrogant towards her. "In such cases as this, it is , I believe, the established mode to express a sense of obligation for the sentiments avowed, however unequally they may be returned. It is natural that obligation should be felt , and if I could feel gratitude, I would now thank you. But I cannot- I have never desired your good opinion, and you have certainly bestowed it most unwillingly. I am sorry to have occasioned pain to anyone." (Austen 162) Later Elizabeth sees how she could have been a part of Mr. Darcy's mansion she could have been his mistress. While she is there she learns of the real Mr. Darcy, and the part of him she never knew. When Elizabeth meets Mr. Wickham in "Pride and Prejudice", she sees that he is a very nice and sweet person. But little did she know! At first Elizabeth is interested in him, and she thinks he is interested in her too and would like to keep seeing him. Mr. Darcy explains to Elizabeth about what jerk he is and how self centered he is. Elizabeth is still kind of interested in him, after all her first impression of him was a very positive one. She starts to compare between Mr. Darcy and MR. Wickham because she still thinks Mr. Wickham is interested in her. " One has got all the goodness and the other all the appearance of it." (Austen 190) Elizabeth finds out what a jerk Mr. Wickham is when he does not show up at the ball. Then ends Beck 3 up running off with Lydia, Elizabeth feels that she could have stopped it from happening. When Lady Bracknell first meets Jack in the story " The Importance of being Earnest she thinks he's a failure and has no parents. Lady Bracknell refuses to the marriage. She thinks that Jack is very poor and knows that he was found in a hand bag at the cloak room at the Victorian Railroad station.. " I confess I fell somewhat bewildered by what you just told me. To be born or at any rate bred in a handbag, weather it had handles on it or not, seems to me to display a contempt for the ordinary decencies of family life that reminds one of the worst excesses of the French Revolution. As for the particular locality in which the handbag was found, a cloak room at a railway station might serve to conceal a social indiscretion." Lady Bracknell is a very greedy person, later in

A Guide to the Purchasing Power Parity Theory

A Guide to the Purchasing Power Parity Theory Purchasing-power parity (PPP) is an economic concept that states that the  real exchange rate  between domestic and foreign goods is equal to one, though it does not mean that the  nominal exchange rates  are constant or equal to one.   Put another way, PPP supports the idea that identical items in different countries should have the same real prices in another, that a person who purchases an item domestically should be able to sell it in another country and have no money left over. This means that the amount of purchasing power that a consumer has does not depend on what currency with which he or she is making purchases. The Dictionary of Economics defines the PPP theory as one that states that the exchange rate between one currency and another is in equilibrium when their domestic purchasing powers at that  rate of exchange  are equivalent. Understanding Purchasing-Power Parity in Practice To better understand how this concept would apply to real-world economies, look at the United States dollar versus the Japanese yen. Say, for example, that one U.S. dollar (USD) can buy about 80 Japanese yen (JPY). While that would make it appear that United States citizens have less purchasing power, the PPP theory implies that there is an interaction between nominal prices and nominal exchange rates so that, for example, items in the United States that sell for one dollar would sell for 80 yen in Japan, which is a concept known as the real exchange rate. Take a look at another example. First, suppose that one USD is currently selling for 10 Mexican pesos (MXN) on the exchange rate market. In the United States, wooden baseball bats sell for $40 while in Mexico they sell for 150 pesos. Since the exchange rate is one to 10, then the $40 USD bat would only cost $15 USD if bought in Mexico. Theres an advantage to purchasing the bat in Mexico, so consumers are much better off going to Mexico to buy their bats. If consumers decide to do this, we should expect to see three things happen: American consumers desire Mexican Pesos to purchase baseball bats in Mexico. So they go to an  exchange rate  office and sell their American Dollars and buy Mexican Pesos, and this will cause the Mexican Peso to become more valuable relative to the U.S. Dollar.The demand for baseball bats sold in the United States decreases, so the price American retailers charge goes down.The demand for baseball bats sold in Mexico increases, so the price Mexican retailers charge goes up. Eventually, these three factors should cause the exchange rates and the prices in the two countries to change such that we have purchasing power parity. If the U.S. Dollar declines in value to a one to eight ratio to Mexican pesos, the price of baseball bats in the United States goes down to $30 each, and the price of baseball bats in Mexico goes up to 240 pesos each, we will have purchasing power parity. This is because a consumer can spend $30 in the United States for a baseball bat, or he can take his $30, exchange it for 240 pesos and buy a baseball bat in Mexico and be no better off. Purchasing Power Parity and the Long Run Purchasing-power parity theory tells us that price differentials between countries are not sustainable in the long run as market forces will equalize prices between countries and change exchange rates in doing so. You might think that my example of consumers crossing the border to buy baseball bats is unrealistic as the expense of the longer trip would wipe out any savings you get from buying the bat for a lower price. However, it is not unrealistic to imagine an individual or company buying hundreds or thousands of the bats in Mexico then shipping them to the United States for sale. It is also not unrealistic to imagine a store like Walmart purchasing bats from the lower cost manufacturer in Mexico instead of the higher cost manufacturer in Mexico. In the long run, having different prices in the United States and Mexico is not sustainable because an individual or company will be able to gain an arbitrage profit by buying the good cheaply in one market and selling it for a higher price in the other market. Since the price for any one good should be equal across markets, the price for any combination or basket of goods should be equalized. Thats the theory, but it doesnt always work in practice.   How Purchasing-Power Parity is Flawed in Real Economies Despite its intuitive appeal, purchasing-power parity does not generally hold in practice because PPP relies on the presence of arbitrage opportunities - opportunities to  buy items at a low price in one place and sell them at a higher price in another - to bring prices together in different countries. Ideally, as a result, prices would converge because the buying activity would push prices in one country up and the selling activity would push prices in the other country down. In reality, there are various transaction costs and barriers to trade that limit the ability to make prices converge via market forces. For example, its unclear how one would exploit arbitrage opportunities for services across different geographies, since its often difficult, if not impossible, to transport services without additional costs from one place to another. Nevertheless, purchasing-power parity is an important concept to consider as a baseline theoretical scenario, and, even though purchasing-power parity might not hold perfectly in practice, the intuition behind it does place practical limits on how much real prices can diverge across countries. Limiting Factors to Arbitrage Opportunities Anything which limits the free trade of goods will limit the opportunities people have in taking advantage of these arbitrage opportunities. A few of the larger limits are: Import and Export Restrictions: Restrictions such as quotas,  tariffs, and laws will make it difficult to buy goods in one market and sell them in another. If there is a 300% tax on imported baseball bats, then in our second example it is no longer profitable to buy the bat in Mexico instead of the United States. The U.S. could also pass a law  making  it illegal to import baseball bats. The effect of quotas and tariffs were covered in more detail in Why Are Tariffs Preferable to Quotas?.Travel Costs: If it is costly to transport goods from one market to another, we would expect to see a difference in prices in the two markets. This even happens in places that use the same currency; for  instance, the price of goods is lower in Canadian cities such as Toronto and Edmonton than it is in more remote parts of Canada such as Nunavut.Perishable Goods: It may be simply physically impossible to transfer goods from one market to another. There may be a place which sells cheap sandwic hes in New York City, but that doesnt help me if I am living in San Francisco. Of course, this effect is mitigated by the fact that many of the ingredients used in making the sandwiches are transportable, so we would expect that sandwich makers in New York and San Francisco should have similar material costs. This is the basis  of  the Economists famous Big Mac Index, which is detailed in their must-read article McCurrencies. Location: You cannot buy a piece of property in Des Moines and move it to Boston. Because of that real-estate prices in markets can vary wildly. Since the price of land is not the same everywhere, we would expect this to have an impact on prices, as retailers in Boston have higher expenses than retailers in Des Moines. So while purchasing power parity theory helps us understand exchange rate differentials, exchange rates do not always converge in the long run the way PPP theory predicts.

Overview of The History of Sexuality

Overview of The History of Sexuality The History of Sexuality is a three-volume series of books written between 1976 and 1984 by French philosopher and historian Michel Foucault. The first volume of the book is titled An Introduction while the second volume is titled The Use of Pleasure, and the third volume is titled The Care of the Self. Foucault’s main goal in the books is to disprove the idea that Western society had repressed sexuality since the 17th century and that sexuality had been something that society did not talk about. The books were written during the sexual revolution in the United States. Thus it was a popular belief that up until this point in time, sexuality was something that was forbidden and unmentionable. That is, throughout history, sex had been treated as a private and practical matter that should only take place between a husband and a wife. Sex outside of these boundaries was not only prohibited, but it had also been repressed. Foucault asks three questions about this repressive hypothesis: Is it historically accurate to trace what we think of sexual repression today to the rise of the bourgeois in the 17th century?Is power in our society really expressed primarily in terms of regression?Is our modern-day discourse on sexuality really a break from this history of repression or is it a part of the same history? Throughout the book, Foucault questions the repressive hypothesis. He does not contradict it and does not deny the fact that sex has been a taboo subject in Western culture. Instead, he sets out to find out how and why sexuality is made an object of discussion. In essence, Foucault’s interest does not lie in sexuality itself, but rather in our drive for a certain kind of knowledge and the power that we find in that knowledge. The Bourgeois and Sexual Repression The repressive hypothesis links sexual repression to the rise of the bourgeoisie in the 17th-century. The bourgeois became rich through hard work, unlike the aristocracy before it. Thus, they valued a strict work ethic and frowned upon wasting energy on frivolous pursuits such as sex. Sex for pleasure, to the bourgeois, became an object of disapproval and an unproductive waste of energy. And since the bourgeoisie were the ones who were in power, they made the decisions on how sex could be spoken about and by whom. This also meant they had control over the kind of knowledge that people had about sex. Ultimately, the bourgeois wanted to control and confine sex because it threatened their work ethic. Their desire to control talk and knowledge about sex was essentially a desire to control power. Foucault is not satisfied with the repressive hypothesis and uses The History of Sexuality as a means to attack it. Instead of simply saying that it is wrong and arguing against it, however, Foucault also takes a step back and examines where the hypothesis came from and why. Sexuality in Ancient Greece and Rome In volumes two and three, Foucault also examines the role of sex in ancient Greece and Rome, when sex was not a moral issue but rather something erotic and normal. He answers questions such as: How did sexual experience come to be a moral issue in the West? And why were other experiences of the body, such as hunger, not subject to the rules and regulations that have come to define and confine sexual behavior? Source: SparkNotes Editors. (n.d.). SparkNote on The History of Sexuality: An Introduction, Volume 1. Retrieved February 14, 2012. Foucault, M. (1978) The History of Sexuality, Volume 1: An Introduction. United States: Random House. Foucault, M. (1985) The History of Sexuality, Volume 2: The Use of Pleasure. United States: Random House. Foucault, M. (1986) The History of Sexuality, Volume 3: The Care of the Self. United States: Random House.

This is a rewrite Essay Example | Topics and Well Written Essays - 750 words

This is a rewrite - Essay Example After taking the course, certification is necessary to identify qualified nurses, and show their level of competence. This is useful in ensuring efficiency of their services are enhanced, which is beneficial to all stakeholders in the health sector. During the evaluation stage, each nurse is asked questions and the level of competency in answering the questions correctly indicates how knowledgeable s/he is. This process is necessary to identify slow and fast learners and the best method to be used in coaching each group to ensure that their skills are greatly improved. In United States of America, certification is a requirement during the recruitment of various health professionals to ensure that they are in a capacity to meet the need of the patients effectively and in a timely manner. This leads to higher level of confidence on the practitioners, which is very essential in undertaking challenging tasks. Theoretical knowledge background is very useful when undertaking practical acti vities as it reduces the probability of commission of errors as well as being in a position to make sound judgement when in critical situations. There are different theories that are used to address various situations we encounter, but the choice of the theory to be applied is dependent on its capacity to handle the situation at hand. In this case, the information presented during learning is in line with constructivism learning theory, which argues on the importance of experience in the development of knowledge; it derives its roots from cognitive psychology. In this regard, the teaching strategies to be implemented are aimed at having a long lasting impact on the learner, by ensuring that they will be better placed to use the knowledge in future. To ensure that they have gained from the learning process, evaluation is necessary and will be carried out in line with the class setting as well as the materials available. Practice test and verbal communication evaluation approaches wil l be used to evaluate the capability of learners presenting various concepts that were covered during the training as well as their capacity to apply the knowledge gained to the practical field. While undertaking the training, the level and type of interaction among the learners can be used to gauge their understanding of the concepts presented. Integration of the practical aspects and the theoretical aspect of learning is necessary in ensuring that the learners are well versed with the applicability of the theoretical concepts learnt. In this case, understanding the anatomy and the cycles in the body is indispensible. This approach brings forth conversation between the instructor and the learners, whereby the learners can pose various questions and get them answered by the instructor. Additionally, the presence of a physical specimen is thought provoking and thus useful to the learners’ intellectual development. Additionally, learners are able to work in teams and improve on their interpersonal interactions, which is necessary for their professional development The rationale to be used in the learning process is aimed at strengthening the current knowledge and using it for further professional development, which is in line with the constructivism learning theory. The communication exercise provides an effective platform for understanding the lung sounds. Through training, various challenges encountered in the medical field are addressed, and

Sexual Offenders Registration Essay Example | Topics and Well Written Essays - 1000 words

Sexual Offenders Registration - Essay Example Registering sexual offenders is similar to indication that they are not welcomed back to society even after serving their sentences. Registering sexual offenders with local authorities amounts to interference with their personal freedoms. Sexual offenders should not be registered with local authorities. Sexual offenders should not be registered with local communities after they serve their sentences whether in prison, juvenile centers or probation centers. When sexual offenders are served with sentences, it means that the justice system has given a ruling that is just both to the offender and the person that was offended. Therefore, when the offender serves his or her sentence and comes back to society, the local authorities should not register them because this is a way of indicating that the sentences they served is not enough and that they have not paid for they did the way they should (Meiners 32). The system of registering sexual offenders is approved because it is seen as one w ay that will prevent sexual offenders from repeating the mistake they did because the local authorities will be able to monitor them. However, this is a wrong assumption because when a sexual offender is sentenced, he or she serves the sentence term while undergoing rehabilitation and treatment where he or she learns that a mistake was done and should never be repeated again. Therefore, rehabilitation and treatment programs are enough because if they offer the right treatment and rehabilitation, then the offender should be able to rehabilitate and live a normal life in the society. Therefore, the need to register them becomes unnecessary. Moreover, in case treatment and rehabilitation programs fail, then registering them for the reason of monitoring will not work in any way. This is because registering a sexual offender does not mean that he or she will be followed anywhere he or she goes or anything they do every time. Therefore, when sexual offenders are served with sentences, whi ch they serve, registration with local authorities is not helpful because the justice programs remain with their records (Levenson, et al. 138). Registering sexual offenders is similar to indication that they are not welcomed back to society even after serving their sentences. Each person does a mistake at a certain point in his or her lives whether it is seen as a serious mistake or a minor one or whether a person knows it or not. However, for people to coexist peacefully in society, forgiveness must exist where people forgive each other for the mistakes they do at one point. Without this, the society will be a place of commotions where people cannot live peacefully. Thus, registering sexual offenders with local authorities amounts to stating that the sexual offenders are not forgiven and they are not welcomed back in society. The justice system has a role in the society to provide justice for everyone irrespective of whether one is an offender or the offended person. When the just ice system serves a sentence to sexual offenders, this should be enough for the sexual offenders to serve their sentence, undergo through rehabilitation and treatment and integrate with the society without difficulty. Registering offenders makes them feel unwanted in the society because of a mistake they may have done knowingly or unknowingly. In fact, registering offenders is like putting those who were sentenced wrongly, those who actually did it knowingly, and others unknowingly

Multiple Churn Prediction Techniques And Algorithms Computer Science Essay

Multiple Churn Prediction Techniques And Algorithms Computer Science Essay Abstract-Customer churn is the business term that is used to describe loss of clients or customers. Banks, Telecom companies, ISPs, Insurance firms, etc. use customer churn analysis and customer churn rate as one of their key business metrics, because retaining an existing customer is far less than acquiring a new one. Corporates have dedicated departments which attempt to win back defecting clients, because recovered long term customers can be worth much more to a company than newly recruited clients. Customer Churn can be categorized into voluntary churn and involuntary churn. In voluntary churn, customer decides to switch to another service provider, whereas in involuntary churn, the customer leaves the service due to relocation, death, etc. Businesses usually exclude involuntary churn from churn prediction models, and focus on voluntary churn, because it usually occurs due to company-customer relationship, on which the company has full control. Churn is usually measured as gross churn and net churn. Gross churn is calculated as loss of previous customers and their associated recurring revenue, generated by those customers. Net churn is measured as sum of Gross Churn and addition of new similar customers. This is often measure as Recurring Monthly Revenue (RMR) in the Financial Systems. INTRODUCTION Predicting and preventing customer churn is becoming the primary focus of many enterprises. Every enterprise wants to retain its each and every customer, in order to maximize maximum profits and revenue from them. With the introduction of business and management systems, and automation of operation flow, corporates have gathered lots of customer and business related data during the daily operating activities, which give data mining techniques a good ground for working and predicting. Lots of data mining algorithms and models have emerged to rescue from this issue of customer loss. These algorithms have been widely used, from past decades, in this field. For prediction of customer churn, many algorithms and models have been applied. Most common of them are Decision tree [1], Artificial Neural Network [2], Logistic Regression [8]. In addition, other algorithms such as Bayesian Network [4], Support Vector Machine [], Rough set [5], and Survival Analysis [6] have also been used. In addition of algorithms and models, other techniques, such as input variable selection, feature selection, outlier detection, etc. have also been applied to get better results out of the above algorithms. First three models i.e. Decision tree, Artificial Neural Network and Logistic Regression have been applied maturely at multiple corporates. Each algorithm has been improved over multiple iterations, and are now pretty much stable. But as the operation and activities of business are growing, it is becoming more and more complex challenge to solve the problem of customer churn, and this is requesting for the generation of new churn prediction models, which are fast and robust, and which can quickly be trained and scored on large amounts of data. Literature review Jiayin and Yuanquan [1] presented a step by step approach on selecting effective input variables for customer churn prediction model in telecommunication industry. In telecommunication industry, there are usually very large number of input variables is available for churn prediction models. Of all these variables, there could be variables which have positive effect on the model, and few which are redundant. These redundant variables cause overload for the churn prediction model. So it is always better to select only important features and remove redundant, noisy and less informative variables. In their study, they have proposed Area under ROC (AUC) method for calculating classifying abilities of the variable, where ROC is Receiver Operating Characteristics, and then selecting variables which have the highest classifying abilities. In addition, he also proposed to compute mutual information among all selected variables and finally selecting variables which have relatively low mutual i nformation co-efficient. Huang and Kechadi [11] proposed a new technique for Feature Selection for the churn prediction models. As their primary focus was telecommunication industry, and in telecom the amount of input variables / feature is very large, and it is always better to select a subset of features, which have the most ability to classify the target classes. Otherwise running algorithm on all the input variables will be too much to time and resource consuming. Most commonly used techniques for selection of features only judges whether an input feature is helpful to classify the classes or not. The approach proposed by them takes into account the relationship between the specified categorical value of the feature and a class for selecting or removing the feature. Luo, Shoa and Lie [2] proposed the customer churn prediction using Decision Tree for Personal Handyphone System Service (PHSS), where the number of variables in input data set is very small. Decision Tree is probably the most commonly used data mining algorithm. Decision Tree model is a predictive model that predicts using a classification process. It is represented as upside down Tree, in which root is at the top and leaves are at the bottom. Decision Trees is the representation of rules. This helps us in understanding, why a record has been classified in a particular way. And these rules can be used to find records that fall into some specific category. In their work they found out the optimal values of input dataset with reference to time sub-period, cost of misclassification and sampling method. With their research, they came up to conclusion that 10-days of sub-period, 1:5 cost of misclassification and random sampling method are the most optimal parameters when training a data m odel using decision trees, when the number of input variables is very small. Ming, Huili and Yuwei [4] proposed a model for churn prediction using Bayesian Network. The concept of Bayesian Network was initially proposed by Judea Pearl (1986). This is a kind of graphics mode used to show the joint probability among different variables. It provides a natural way to describe the causality information which could be used in discovering the potential relations in data. This algorithm has been successively used in knowledge representation of expert system, data mining and machine learning. Recently, it has also been applied in fields of artificial intelligence, including causal reasoning, uncertain knowledge representation, pattern recognition cluster analysis and etc. A Bayesian network consists of many nodes representing attributes connected by some lines, so the problems are concerned that more than one attribute determine another one which involving the theory of multiple probability distribution. Besides, since different Bayesian networks have different structures and some conceptions in graph theory such as tree, graph and directed acyclic graph can describe these structures clearly, graph theory is an important theoretical foundation of Bayesian networks as well as the probability theory, thus the results of Customer Churn using Bayesian network are very promising. Jiayin, Yangming, Yingying and Shuang [10] proposed a new algorithm for churn prediction and called it TreeLogit. This algorithm is combination of ADTree and Logistic Regression models. It incorporates the advantages of both algorithms and making it equally good as TreeNet ® Model which won the best prize in 2003 customer churn prediction contest. As Treelogit combines the advantages of both base algorithms so it becomes very powerful tool for customer churn prediction. The Modeling process of TreeLogit starts by Designing Customers character variables based on prior knowledge. Then the character variables are categorized into m sub-vectors, and a decision tree for each sub-vector is created. Once we have the decision tree for each sub-vector, then we develop logistic regression models for each sub-vector. And finally we evaluate the accuracy and interpretability of the model. If they are acceptable then the customer retention process is started, otherwise the model is re-tuned for better results. Jing and Xinghua [5] in their work on customer churn prediction, presented a model based on Support Vector Machines. Support Vector Machines are developed on the basis of statistical learning theory which is regarded as the best theory for the small sample estimation and predictive learning. The studies on the machine learning of finite sample were started by Vapnik in sixties of last century and a relatively complete theoretical system called statistical learning theory was set up in nineties. After that, Support Vector Machines, a new learning machine was proposed. SVM is built on the structural risk minimization principle that is to minimize the real error probability and is mainly used to solve the pattern recognition problems. Because of SVMs complete theoretical framework and the good effects in practical application, it has been widely valued in machine learning field. Rough set Xu E, Liangeshan Shao, XXuedong Gao and Zhai Baofeng introduced Rough set algorithm for customer churn prediction [2]. Dengh Hu also studied the applications of rough set for customer churn prediction[5]. According to them, Rough set is a data analysis theory proposed by Z. Pawlak. Its main idea is to export the decision or classification rules by knowledge reduction at the premise of keeping the classification ability unchanged. This theory has some unique views such as knowledge granularity which make Rough set theory especially suitable for data analysis. Rough set is built on the basis of classification mechanism and the spaces partition made by equivalence relation is regarded as knowledge. Generally speaking, it describes the imprecise or uncertain knowledge using the knowledge that has been proved. In this theory, knowledge is regarded as a kind of classification ability on data and the objects in the universe are usually described by decision table that is a two-dimensional t able whose row represents an object and column an attribute. The attribute consists of decision attribute and condition attribute. The objects in the universe can be distributed into decision classes with different decision attributes according to the condition attributes of them. One of the core contents in the rough set theory is reduction that is a process in which some unimportant or irrelevant knowledge are deleted at the premise of keeping the classification ability unchanged. A decision table may have several reductions whose intersection was defined as the core of the decision table. The attribute of the core is important due to the effect to classification. Survival Analysis Survival analysis is a kind of Statistical Analysis method to analyze and deduce the life expectancy of the creatures or products according to the data comes from surveys or experiments. It always combines the consequences of some events and the corresponding time span to analyze some problems. It was initially used in medical science to study the medicines influence to the life expectancy of the research objects. The survival time should be acknowledged widely, that is, the duration of some condition in nature, society or technical process. In this paper, the churn of a customer is regarded as the end of the customers survival time. In the fifties of last century, the statisticians began to study the reliability of industrial products, which advanced the development of the survival analysis in theory and application. The proportional hazard regression model is a commonly used survival analysis technique which was first proposed by Cox in 1972. CRITICAL REVIEW Jiayin and Yuanquan [1] proposed a very simple method for the variable selection. The method proposed is very effective and practical, But there are more systematic methods available, which use advance neural network, induction algorithms and rough set. Huangs and Kechadis [11] concept for taking into account the categorical values into account when feature selection is being performed, is good. But their concept is limited to categorical values and continues values cant be applied on their approach. Continues values need to be discretized into categorical values, before their feature selection concept could be applied, but this conversion from continues to discrete may result in loss of information. Luo, Shoa and Lie [2] selected Decision Tree as their choice of data mining algorithm for churn prediction, which is the simplest and understandable algorithm for classification. Its simplicity also makes it the most widely used algorithm. But decision tree has its own limitations, they are very unstable and a very little change in the input variables, such as addition of newer ones, require rebuilding and re-training of complete decision tree. In addition, they should have also focused on how to enrich the input variables, by adding new derived variables that could enhance the efficiency of the model. Ming, Huili and Yuwei [4] Bayesian network model has advantages and some short comings. It has the ability to product best results even when the input datasets are incomplete. In addition, it has the ability to take connections into account when predicting churn and to take prior knowledge into consideration. This algorithm also has the ability to effectively prevent over fitting. But if the dataset is large, the structure learning of the Bayesian networks will be too difficult. Thus this model is not fit for telecom, where the dataset is always very large. Jiayin, Yangming, Yingying and Shuang [10] TreeLogit combines the advantages of both algorithms i.e. ADTree and logistic regression, thus it is both data-driven and assumption-driven and it has the capability of analyzing objects with incomplete information. Moreover, its efficiency is not affected by the bad quality data and it generates continues output with relatively low complexity. Jing and Xinghua [5] used Support Vector Machine algorithm for Churn Prediction. This algorithm is best if you have a limited number of sample records, but on the other hand its theory is very complex and there are many variations in it. So it is difficult to find the version which best suites your problem. Conclusion There are multiple solutions available for customer churn prediction. Each has its own advantages and disadvantages. So a single solution might not be best for any organization. The organization may have to use the combination of algorithms and techniques to get the best results for churn prediction.

Factors Affecting Failing Grade

CHAPTER 1 INTRODUCTOIN Many factors can affect academic performance, which means how a person does on schoolwork. The physical condition of the student has a great deal to do with that person's ability to do a good a good job on anything and to understand anything. For example, if the student has poor eyesight, he or she might not be able to read well. If the student has a hearing impairment, he or she might not be able to listen to and understand instructions.If the student has a disease, it might impair his or her ability to do the required work. Students with less money might not be able to purchase school supplies that could help them with their work — rulers, paper, pens, computers, books, etc. Students with less money might have household responsibilities that wealthier students do not have — babysitting for younger kids while the parents work second and third jobs, working for money outside of school, or spending homework time waiting in line for food at a food s helter.Students might live in difficult conditions without electricity or water, and might have to go away from home to take a shower, brush their teeth, have breakfast, and wash their clothing. Some students are just not disciplined and lack good organizational skills. They often fall under the pressure of their peers. Rather than using good discretion, they feel compelled to follow others (socially), when they really should be attending to their studies. Scope and limitation This Research is mainly dealt with knowing purchase and ost purchase behaviour. This Research is focuses on product output which customer get from the product. This Research is also focus on changing preference of customers because in today’s time there are so many best option for customer for every electronic product. This Research also studies that product are reaching up to the expectation of customer or not. A electronic product company differentiate its product on different grounds. So we study tha t, for which qualities company is advertising, those features that product have or not.Definition of Terms Students – A student is a learner, or someone who attends an educational institution. Academic performance – refers to how students deal with their studies and how they cope with or accomplish different tasks given to them by their teachers. Study Habits – It means you are not distracted by anything, you have a certain place to go where it is quiet everyday where you study and do homework. Basically it means that you are doing the best you can to get the grades you want.Work load – The amount of work assigned to or expected from a worker in a specified time period. Financial problems – can ultimately lead to a bad credit rating. This can affect one's ability to buy a house, purchase a car or even get a job. Emotional Condition – is an increasingly common occurrence in today’s hectic and often toxic lifestyles. Grades – in the realm of education are standardized measurements of varying levels of comprehension within a subject area. Bibliography http://herkules. oulu. fi/isbn9514265556/html/x131. tml http://www. oppapers. com/essays/Failing-Grades/847357 http://thesisworks. com/2011/casestudy-format/objectives-study-sample/ http://www. scribd. com/doc/10036097/Sample-Thesis-Chapter-1 http://www. scribd. com/doc/10036097/Sample-Thesis-Chapter-1 http://virtualmentor. ama-assn. org/2009/11/ccas2-0911. html http://www. scribd. com/doc/11822201/example-of-a-research-paper http://www. oppapers. com/essays/Factors-Affecting-Academic-Performance/624248 http://www. scribd. com/doc/12760820/Scope-and-Delimitation