Improving Decision Tree Performance Methods - 1479 Words

There are several improvement methods are available to improve decision tree performance in terms of accuracy, and modelling time. Since experimenting with every available method is impossible, some of the methods are selected that are proven to increase decision tree performances. Selected improvement methods and their experimental setups are presented in this chapter. 4.1 Correlation-Based Feature Selection Feature selection is a method used for reducing number of dimensions of a dataset by removing irrelevant and redundant attributes. Given a set of attributes F and a target class C, goal of feature selection is to find a minimum set of F that will yield highest accuracy (for C) for the classification task. Although†¦show more content†¦Also, method is performing well for C4.5 algorithm is likely to perform well for ID3 algorithm. Previous studies show that CFS method increases accuracy for CART algorithm although not as much as the C4.5 algorithm does (Doraisamy et al., 2008). CFS uses a search algorithm and feature evaluation algorithm which uses a heuristic that measures goodness of attributes subsets. Hall and Smith (1998) define this goodness heuristic as Good feature subsets contain features highly correlated with the class, yet uncorrelated with each other. Equation 1 below shows heuristic formula. G_x=(k ¯(r_ci ))/√(k+k(k-1) ¯(r_ii )) Where G_x is the heuristic of goodness of an attribute subset x that contains k features,  ¯(r_ci ) is average attribute-class correlation which points predictive power of the attribute subset to a class, and  ¯(r_ii ) is average attribute inter-correlation that indicates the redundancy among attributes. A version of correlation-based attribute selection to be included in experiment setup is called Fast Correlation-Based Feature Selection (FCBF) that initially developed by Yu and Liu (2004). This algorithm is preferred over other available correlation-based attribute selection algorithms since while other implementations of CFS using forward-sequential or greedy search methods (e.g. MRMR/CFS developed by Schoewe,Show MoreRelatedAnalyzing Various Factors That Drive Learning Analytics Essay1489 Words   |  6 Pagesanalytics. Whereas educational data mining focuses on how to extract useful data from a large learning dataset, learning analytics focuses on optimizing opportunities in online learning environment. Academic analytics, on the other hand, focuses on improving learning opportunities and educational results across national and international levels. The authors also identify a future set of challenges to be addressed by learning analytics like establishing clear set of e thical guidelines, coupling with recentRead MoreAnalyzing Healthcare Issues And Their Solutions1042 Words   |  5 Pagesthe process performances and improvements should be studied and derived, respectively, for improving the performance of a system. ïÆ'Ëœ Identification of performance parameters: A process parameter can be both objective and subjective. To derive process performance, it is important to identify the factors and develop a framework that can be used to analyse the factors. ïÆ'Ëœ Measure current performance: To measure the performances of all processes, data collection and analysis of the performance measurementRead MoreData Mining is a Technique Used to Clarify and Classify Data1431 Words   |  6 Pageshandled like numerical data, non-numeric data, image data...etc. In classification tree modelling the data is classified to make predictions about new data. Using old data to predict new data has the danger of being too fitted on the old data. In this we evaluated different types of data to be collected from UCI repository for classify the data using the different classification algorithms J48, Naive Bayes, Decision Tree, IBK. This paper evaluates the classification accuracy before applying the featureRead MoreThe Transpose Technique On Number Of Transactions Of Apriori Algorithm1282 Words   |  6 Pagesone of the essentially used and interesting research areas. Mining association rule is one of the important research techniques in data mining field . Many algorithms for mining association rules are proposed on the basis of Apriori algorithm and improving the algorithm strategy but most of these algorithms not concentrate on the structure of database. The proposed technique includes transposition of database with further enhancement in this particular transposition technique. This approach will reduceRead MoreThe Use Of Feature Engineering794 Words   |  4 Pagestechniques like Box Plot and Histogram our employee detect outliers, which she studied during her Maters under the course ‘Introduction To Applied Analytics’. 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Importance of web pages to be downloaded hasRead MoreTaking a Look Weyerhaeuser1858 Words   |  7 Pageson the process of seeds, planting of seeds, and relocation of saplings. They have orders placed with them and in turn place orders to get what seed they do not already grow and produce. They turn the seed they get or already have and start a baby tree and res ale or plant those trees. Frederick Weyerhaeuser and 15 partners in January of 1900 started the company. They started by purchasing 900,000 acres of land from Northern Pacific Railway in Washington. At the time that was the largest privateRead MoreUsing Multimodal Wearable Technology Essay749 Words   |  3 Pagesof the data collected. Framework to interpret and analyze this data is not very mature. Proposed Solution The authors here develop interactive, real-time interventions to detect conflict and suggest remedies for improving couples’ relationship. The model is based on a binary decision tree classification on dataset of numerous features. For this purpose, authors have picked the features like Physiological indices, Language and acoustic features, Context and interaction indices and Conflict featuresRead MoreVietnam s Economic Growth On The Economy1320 Words   |  6 PagesTable of Content: 1. Abstract 2 2. Introduction 2 3. Method 2 4. Results: 4 5. Discussion: 4 6. Conclusion 5 7. References 5 â€Æ' Tasks: Outline Introduction: Guide using this manual. Chapter 1: Overview of construction field in Viet Nam and the situation of Coteccons company – leading construction company. 1.1 Overview of Viet Nam economy and construction field: Vietnam has changed from one of the poorest countries in the world to a lower middle-incomeRead MoreTaking a Look at Web Services1323 Words   |  5 Pagesmutation, and natural selection in a design based on the concepts of natural evolution process. †¢ Decision trees: Tree-shaped structures that represent sets of decisions. The decisions generate rules for classification of a dataset. Specific decision tree methods include Classification and Regression Trees (CART) and Chi Square Automatic Interaction Detection (CHAID). CART and CHAID are decision tree techniques used for classification of a dataset. They provide a set of rules that you can apply to

The Effect Of Organizational Silence On Organization...

Problem statement: â€Å"Impact of organization silence on organization citizenship behaviour, job performance, counterproductive work behaviour and creativity† Aim of study is to determine the relationship between organization silence and organization citizenship behaviour, job performance, counterproductive work behaviour and creativity. Either this relationship has positive influence or negative. Purpose of study: Objective of this quantitative study is to determine the influence of organizational silence on organization citizenship behaviour, job performance, counterproductive work behaviour and creativity. To check either organization silence has positive relation with organization citizenship behaviour, job performance, counter productive work behaviour, and creativity or negative. Secondly, Purpose is to check what behaviours are realistically acceptable at work place and what actually they are representing. Significance of the study: This study has great significance, it can be demonstrated by the following components: Firstly past research on organization silence is very limited as it is emerging topic in research field. There is no direct relationship defined of organization silence with organization citizenship behaviour, job performance, counter productive work and creativity. Silence within organization refers to quieting, restriction, containment, marginalization, trivialization, omission, ghettoization and other form of Exemption (Hazen 2006, Deniz, Noyan, Show MoreRelatedEmployee Silence And Promoting Free Environment1283 Words   |  6 Pagessuccess of organizations. They possess critical abilities of exerting creativity, innovation and change. Yet these sources of success are not always applied, due to silence in the workplace. Breaking this employee silence and promoting free climate to encourage speaking up are obstacles managers face. The degree of communication and connection between managers and employees in organizations is vital when determining organizational outcomes. Detert and Burris (2016) has found that an organization has lowerRead MoreOrganizational Beh.3758 Words   |  16 PagesToronto Delhi Mexico City Sao Paulo Sydney Hong Kong Seoul Singapore Taipei Tokyo Preface 22 1 1 What Is Organizational Behavior? 3 7 The Importance of Interpersonal Skills 38 What Managers Do 39 Management Functions 40 †¢ Management Roles 40 †¢ Management Skills 42 †¢ Effective versus Successful Managerial Activities 42 †¢ A Review of the Manager s Job 43 Enter Organizational Behavior 44 Complementing Intuition with Systematic Study 45 Disciplines That Contribute to the OB Field 47 PsychologyRead MoreStephen P. Robbins Timothy A. Judge (2011) Organizational Behaviour 15th Edition New Jersey: Prentice Hall393164 Words   |  1573 PagesOrganizational Behavior This page intentionally left blank Organizational Behavior EDITION 15 Stephen P. Robbins —San Diego State University Timothy A. Judge —University of Notre Dame i3iEi35Bj! Boston Columbus Indianapolis New York San Francisco Upper Saddle River Amsterdam Cape Town Dubai London Madrid Milan Munich Paris Montreal Toronto Delhi Mexico City Sao Paulo Sydney Hong Kong Seoul Singapore Taipei Tokyo Editorial Director: Sally Yagan Director of Editorial Services:Read MoreOrganizational Behavior7738 Words   |  31 PagesOrganizational Behavior BUS 502 Md. Lutfar Rahman Faculty College of Business Administration IUBAT—International University of Business Agriculture and Technology Text †¢ Organizational Behavior 13th Edition †¢ Author: Stephen P. 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Some managers are more likelyRead MoreHow to Convert a Traditional Organization to a Learning Organization6474 Words   |  26 PagesWorkplace Formal communication is organized and managed information that is shared with relevant individuals in order to secure coordinated action throughout the organization. Formal communication channels are based on an individual’s role in the organization and distributed in an organized way according to the established chain in organizational charts. Typically, formal communication flows â€Å"downward† from executives to directors to managers to staff regarding company direction and instruction and â€Å"upward†Read MoreOrganizational Heroes Essay5612 Words   |  23 PagesORGANIZATIONAL HEROES: COMMUNICATING WHAT MATTERS MOST EXECUTIVE OVERVIEW Who are our organizational heroes? What makes an organizational hero? And why do we need heroes in the organization? We attempted to find the answers from a group of middle-level executives in Hong Kong. They were asked to identify critical incidents showing behaviors of their bosses, peers, or ordinary employees who have acted in ways perceived as being heroic. The respondents represent a broad sample of companiesRead MoreSteve Jobs Leadership Assessment2120 Words   |  9 Pages Steve Jobs’ Leadership Assessment Katina King Brenau University â€Æ' Steve Jobs’ Leadership Assessment Many organizations are successful because of the formulated relationships between its leaders and followers. These organizations spend countless amounts of money on new leadership training. However, researchers have been studying and debating leadership for centuries and there is still not a concrete definition for leadership. 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Literary Utopian Societies Essay Example For Students

Literary Utopian Societies Essay Literary Utopian Societies The vision of one century is often the reality of the next (Nelson 108). Throughout time, great minds have constructed their own visions of utopia. Through the study of utopias, one finds that these perfect societies have many flaws. For example, most utopias tend to have an authoritarian nature (Manuel 3). Also, another obvious imperfection found in the majority of utopias is that of a faulty social class system (Thomas 94). But one must realized that the flaws found in utopian societies serve a specific purpose. These faults are used to indicate problems in contemporary society (Eurich 5, Targowski 1). Over the years, utopian societies have been beneficial in setting improved standards for society. By pointing out the faults of society, improvement is the most likely next step. Citizens should take advantage of utopian literature in order to better future societal conditions (Nelson 104). Because it is impossible to create a perfect society in which every ones needs can be met, society must analyze utopias in order to improve their existing environment. Platos Republic was the first true work considered to be utopian literature. In fact, the Republic influenced almost all later text written on the subject of utopia (Manuel 7). Although the Republic was one of the most influential works in utopian literature, the society that it represented also had many obvious flaws. First, Platos utopia had a distinct class system (Morely iii, Bloom xiii). The privileged class that ruled the society also enforced censorship in order to keep control over the Republic (Manuel 5). To perform all of the lowly tasks of the society, a system of slavery was enforced (Manuel 9). In addition, different forms of propaganda were used to keep the citizens in check (Manuel 5, Bloom xiv). The political and economic systems, in which the wealthy class controlled all the funds, were extremely restrictive (Mumford 4, Bloom xiii). With the society being in opposition to change, it would have obviously failed. A static society, in which propaganda is used to promote the State, disrupts the creative thinking process. And, without the creative thinking process, intellectual growth as a whole also slows (Mumford 4, Benz 3). Yet another famous Utopian society that appears to thrive on the surface is that of Sir Thomas Mores Utopia. Mores society was similar to Platos Republic in many ways (Will 1). The State, in Mores Utopia, controlled the masses through the use of propaganda just as in Platos Republic (Adams 154). Speaking out against the State was made an unthinkable action (Adams 253). The government of Mores Utopia was so centralized, that it was unable to adapt to changes and face problems (Mumford 4). This Utopia turned out to have a number of underlying problems. Aldous Huxleys a Brave New World was another utopia with many imperfections.In the novel, the characters living in utopia were under complete control of the government. They were exposed to propaganda beginning at birth and continued to be exposed to it throughout their lives. The course a personslife would take was already determined before he was born.Basically, the citizens of this utopia were robots. They did as they were told, and they had no accurate knowledge of what was going on around them (26). Only the elite class of Controllers had an unobstructed view of the world (235). Another theme that was put forth throughout the novel was that of the class system. In Huxleys utopia, the quality of ones genes determined his social class. No person had a chance of leaving his caste, and his conditioning had programmed his mind into believing that this was all acceptable (66).When looking at utopian literature as a whole, one realizes that utopias are merely a way that man uses to imp rove himself and the environment in which he lives (Eurich 7). The purpose of texts written about utopian societies is to inform the public of current social problems and to inform them how to fix these problems (Targowski 1). Almost every utopia is an implicit criticism of the civilization that served as its background. (Mumford 2). And with this criticism, positive change arises and sets us in another direction Civic Engagement EssayThroughout time, utopias have been models of contemporary society. By examining various utopias, one finds that certain faults have been purposely inserted (Thomas 96). This is because the authors of these works intended their texts to be used as objections against troubles in modern society (Coupland 3). After publication of this utopian literature, change often arose, and the problems, which had been discussed in the text, had been resolved (Nelson 100). As a result of writing about the injustices of the time, society has set improved standards for i tself (Adams 178, Fitting 5). With more utopian experiments in the works, one can only hope that society will once again answer the call to improve, and progress into the next century. Works CitedAdams, Robert M., ed. Utopia. New York: W. W. Norton Company Inc., 1975. Benz, Phillip, ed. Utopia3. 6 Jan. 1999 . Bloom, Allan. The Republic of Plato. New York: Basic Books Inc., 1968. Coupland, Philip, ed. University of Warwick. 11 Jan. 1999 . Eurich, Nell. Science in Utopia A Mighty Design. Cambridge, Massachusetts: Harvard University Press, 1967. Fitting, Peter. The Society for Utopian Studies. 16 Jan. 1999 . Huxley, Aldous. Brave New World. New York: Harper Brothers, 1932. Kateb, George, ed. Utopia. New York: Atherton Press, 1971. Manuel, Frank E., ed. Utopias and Utopian Thought. Boston: Houghton Mifflin Company, 1966. Morley, Henry, ed. Ideal Commonwealths. New York: Kennikat Press, 1968. Mumford, Lewis. The Story of Utopias. New York: The Viking Press, 1962. Nelson, William, ed. Twentieth Century Interpretations of Utopia. Englewood Cliffs, New Jersey: Prentice-Hall, 1968. Taragowski, Henry W. Utopia. 6 Jan. 1999 . Thomas, John L., ed. Looking Backward 2000-1887. Cambridge, Massachusetts: Harvard University Press, 1967. Utopia and Utopian Philosophy. Ed. Jon Will. 1999. Utopia Pathway Association. 6 Jan. 1999 . Validation of Electronic SourcesPhillip Benz received a Masters Degree in English Literature and currently teaches in France. Philip Coupland is a professor at Warwick University. Jon Will is the Vice President of the Utopia Pathway Association. Henry Taragowski is a professor at Xavier University. Peter Fitting is the Chairman of the Society for Utopian Studies.

Pisces Iscariot free essay sample

For most people, the Smashing Pumpkins is either a band you love or hate. I worship this Chicago-based band. With their newest and quite possibly their best album, pisces iscariot, the popularity of the Smashing Pumpkins has soared to new heights. Although the majority of songs on this CD were released previously in the United Kingdom, many are new to the United States. Perhaps the reason for such popularity is the Smashing Pumpkins completely original style. Billy Corgan, the lead singer/songwriter, has great musical talent and the ability to redo old hits by classic groups like Fleetwood Mac. Landslide, written by Stevie Nicks, was recorded at the BBC. In my opinion, this was a great song when performed by Fleetwood Mac, but is tremendously improved when sung by Billy. One of the greatest qualities of the Smashing Pumpkins is their ability to combine light and heavy tunes. This is extremely evident on pisces iscariot which includes tracks like Soothe and Frail and Bedazzled. We will write a custom essay sample on Pisces Iscariot or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page If you have ever considered buying any of the Pumpkins previous albums (Siamese Dream or Gish) put pisces iscariot right at the top of your list. Anyone who is a true Smashing Pumpkins fan will definitely love this CD