Methodology of the Naïve Bayes Algorithm. Essay
In this chapter we are going to provide more insight into the Naïve Bayes algorithm. The aim is to show how the method works. We will also take a look at how our model will be developed, the various data sets that will be used in the process and how they were chosen. Then we are going to look at feature selection and how it will be applied.
THE NAÏVE BAYES CLASSIFIER
Bayes' rule:
P (E  H) x P (H)
P (H  E) = _________________ P (E)
The fundamental concept of Bayes' rule is that the result of a hypothesis or an event (H) can be calculated based on the presence of some observed evidences (E). From Bayes' rule, we have:
1. A prior probability of H or P(H): This is the probability of an event before observing …show more content…
In this chapter we are going to provide more insight into the Naïve Bayes algorithm. The aim is to show how the method works. We will also take a look at how our model will be developed, the various data sets that will be used in the process and how they were chosen. Then we are going to look at feature selection and how it will be applied.
THE NAÏVE BAYES CLASSIFIER
Bayes' rule:
P (E  H) x P (H)
P (H  E) = _________________ P (E)
The fundamental concept of Bayes' rule is that the result of a hypothesis or an event (H) can be calculated based on the presence of some observed evidences (E). From Bayes' rule, we have:
1. A prior probability of H or P(H): This is the probability of an event before observing the evidence.
2. A posterior probability of H or P(H  E): This is the probability of an event after observing the evidence.
For example to estimate the probability of a mail being classified as belonging to the Human Resources (HR) class, we usually use some evidences such as the frequency of use of words like “Employment”.
Using the equation above, let ‘HR’ be the event of a mail belonging to HR and ‘Employment’ be the evidence of the word Employment in the mail, then we have
P (Employment  HR) x P (HR)
P (HR  Employment) = _____________________
P (Employment)
P (HR  Employment) is the probability that the word Employment occurs in a mail to HR. Of course, “Employment” could occur in many other mail classes such as Joint

An Overview Of Naive Art
1831 Words  8 Pages1.1 Overview of Naive Art Born in late 19th Century, Naive art, is a particular culturalartistic movement, and its strongest characteristics are based on the fact that involved artists do not have any special instruction or expertise in drawing real life based scenes and objects, and they come from a modest socioeconomic background. Also called “art of the people”, Naive artists have a predominant tendency of outlining real community values and aesthetic. In most of the Naive paintings we can…

Genetic Algorithms And Its Applications Of Cyber Security
1709 Words  7 PagesGenetic Algorithms and its Applications to Cyber Security Paper By Sameera Chalamalasetty Guided By Dr. Mario A Garcia Abstract: Genetic algorithms (GAs) were initially proposed by John Holland, whose thoughts were connected and developed by Goldberg. GAs are a heuristic…

Gawain, noble or naïve? Essay
1064 Words  5 PagesGawain, noble or naïve? Gawain, nephew of the famed Arthur of the Round Table, is depicted as the most noble of knights in the poem Sir Gawain and the Green Knight. Nonetheless, he is not without fault or demerit, and is certainly susceptible to conflict. Gawain, bound to chivalry, is torn between his knightly edicts, his courtly obligations, and his mortal thoughts of selfpreservation. This conflict is most evident in his failure of the tests posed by the wicked Morgan le Fay. With devious tests…

A Survey On Data Mining Classification Algorithms
3556 Words  15 PagesA Survey on Data Mining Classification Algorithms Abstract: Classification is one of the most familiar data mining technique and model finding process that is used for transmission the data into different classes according to particular condition. Further the classification is used to forecast group relationship for precise data instance. It is generally construct models that are used to predict potential statistics trends. The major objective of machine data is to perfectly predict the class for…

Random Forest, An Ensemble Learning Algorithm
2238 Words  9 Pages3. ALGORITHM BASIS 3.1. Random forest The random forest is an ensemble learning algorithm that combines the ideas of “bootstrap aggregating” [20] and “random subspace method” [21] to construct randomized decision trees with controlled variation, introduced by Breiman [22]. According to the theory of random forest algorithm, for a collection of classifiers h1(x), h2(x), . . . , hK(x), and with the training set at random from sampled random vector Y, X, the margin function is termed as: (1) where…

Comparative Analysis : Classification Algorithms
3166 Words  13 PagesComparative Analysis of Classification Algorithms Abstract Data Mining is the nontrivial extraction of potentially useful information about data. In other words, Data Mining extracts the knowledge or interesting information from large set of structured data that are from different sources. There are various research domains in data mining specifically text mining, web mining, image mining, sequence mining, process mining, graph mining, etc. Data mining applications are used in a range of areas…

The Swarm Based Routing Algorithms
1441 Words  6 PagesBIOINSPIRED SWARM BASED ROUTING ALGORITHMS IN VANETs Arshpreet Kaur*, Er. Navroz Kaur Kahlon** *(Computer Engineering Department, UCOE, Punjabi University, Patiala) ** (Asst. Prof. Computer Engineering Department, Punjabi University, Patiala) (Email: *arshrai90@gmail.com, **Kahlon.navroz3@gmail.com) AbstractVehicular Adhoc Networks (VANETs) play main role in the design and development of the Intelligent Transportation Systems (ITS) who improves the road safety and transportation productivity…

Annotated Bibliography On Database Algorithms
2083 Words  9 PagesIn this we describe the Advantages done for clustering through replication. The ways in which Replication provides consistency for database, problems associated with replication. Solutions to overcome problems due to replication. Several algorithms to optimize performance with replication. Keywords: Replication: An approach to enhance consistency in large database. 1. Introduction However clustering offers us some problems in terms of Consistency. Database clusters can make new businesses…

Research Methodology
16940 Words  68 PagesRESEARCH METHODOLOGY S. Rajasekar School of Physics, Bharathidasan University, Tiruchirapalli – 620 024, Tamilnadu, India∗ P. Philominathan Department of Physics, Sri AVVM Pushpam College, Poondi, Thanjavur – 613 503, Tamilnadu, India V. Chinnathambi Department of Physics, AKGS Arts College, Srivaikundam – 628 619, Tamilnadu, India In this manuscript various components of research are listed and brieﬂy discussed. The topics considered in this writeup cover a part of the research methodology paper…

Boolean Algebra Cryptography Algorithms
2078 Words  8 PagesBAC ALGORITHM BOOLEAN ALGEBRA ESTABLISH EFFICIENT AND EFFECTIVE ASYMMETRIC KEY CRYPTOGRAPHY ALGORITHM ABSTARCT: To share information for academics effort we brought Internet, it never past for higher privacy effect. It plays vital role for people who are in online, this way is very effective and easy but able to cause harm for data cracking and hacking by malicious people. When we are using internet data must be secured and safely store. By using encryption we can secure our data by avoiding unauthorized…
More about Methodology of the Naïve Bayes Algorithm. Essay

An Overview Of Naive Art
1831 Words  8 Pages 
Genetic Algorithms And Its Applications Of Cyber Security
1709 Words  7 Pages 
Gawain, noble or naïve? Essay
1064 Words  5 Pages 
A Survey On Data Mining Classification Algorithms
3556 Words  15 Pages 
Random Forest, An Ensemble Learning Algorithm
2238 Words  9 Pages 
Comparative Analysis : Classification Algorithms
3166 Words  13 Pages 
The Swarm Based Routing Algorithms
1441 Words  6 Pages 
Annotated Bibliography On Database Algorithms
2083 Words  9 Pages 
Research Methodology
16940 Words  68 Pages 
Boolean Algebra Cryptography Algorithms
2078 Words  8 Pages