Weka Ashish Penti
Computer Science Department
University of North Carolina - Charlotte Charlotte, NC, U.S.A
ABSTRACT
Weka (Waikato Environment for Knowledge Analysis) is a collection of machine learning algorithms developed on Java platform by University of Waikato, New Zealand. It is a data analyzing tool used for data modeling and predictive analysis. It is licensed under GNU General Public License. As it is implemented in Java it is platform independent. It is a comprehensive collection of various data preprocessing and modeling techniques. Some of the operations performed using Weka like classification, clustering etc. are discussed here. It provides implementation of various algorithms which can be applied on any kind of datasets.
It has wide range of features which perfectly suits for a data mining process. This includes preprocessing of data to clean and structure the data. Then it is followed by data classification/clustering by choosing appropriate algorithm. Weka contains four different types of interface. Each one has its own specifications. Explorer is the simple and basic interface whereas Experimenter is the most efficient of all these. Using Java Database Connectivity, it provides access to SQL databases and can be used to process the result obtained from database queries.
This article provides a brief introduction to Weka, list of few algorithms in Weka, how it is used, some of the merits and demerits of Weka and some of the future implementations that
To fulfill all the requirements, Boots decided to use Customer Data Analysis System (CDAS) by giving advice from IBM. According to the support of this system, most queries response times were 30 times faster than before even though the database has reached 1.200 GB. Because of this, the analysts of Boots were delighted. CDAS includes IBM’s intelligent Miner for Data being used for more advanced data mining such as segmentation and
Predictive Analytics: The Power to Predict Who Will Click, Buy, Lie, or Die is a
ABSTRACT Decision tree induction and Clustering are two of the most prevalent data mining techniques used separately or together in many business applications. Most commercial data mining software tools provide these two techniques but few of them satisfy business needs. There are many criteria and factors to choose the most appropriate software for a particular organization. This paper aims to provide a comparative analysis for three
In this module, the class label for the testing data is predicted. The n – dimensional feature vector for the testing data is converted from query tree of testing data in the manner similar to the data pre – processing phase. The SQLIA classifier determines the new testing feature vector is normal or malicious, by using optimized SVM classification model.
experiment the performance of three classifiers are compared. The three classifiers used are Naïve Bayes,
Abstract - In the Data mining process, we can identify the patterns in the data that is hard to find using normal analysis. Several Mathematical and statistical algorithms are used in this approach to determine the probability of the event or scenario. The main aim of this process in terms of technical representation is to find the correlation amongst the attributes. There is a huge amount of discovery being carried out in this field creating a huge scope and jobs in this area. Several data mining algorithms are present that could determine different features present in the data that could lead in prediction and future analysis. Main Study report would consist of these algorithms that could help us predict and some sample data that we
Data Mining is a technique used in various domains to give meaning to the available data and different types of Data to be handled 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 feature selection algorithms and comparing the classification accuracy after applying the feature selection with learning algorithms.
The creation of our graphical and Command Line interface came about as a means of testing our algorithms. Since we were attempting to mine associations from large datasets, it made sense to test our mining algorithms on artificially created datasets so as to check whether or not our algorithms were successful. Therefore, we devised the graphical interface to allow us to create sufficiently large datasets based upon association rules. This allowed us to plant specific rules with set supports and confidence with in our test datasets. We were then able to run our test datasets through our association mining algorithms to verify whether or not the algorithms correctly identified the rules which we had planted with the correct
2. Classification stage – applying the algorithm on the dataset to get FDT (Fuzzy Decision Tree) and analyse them to get results.
Data mining is defined as the process of exploration and analysis of large data sets, and discovering meaningful patterns and rules. The main objective of data mining is to design and work efficiently with large data sets. Data mining helps resolving problems that are time consuming when traditional techniques are used. Data mining techniques are used to predict future trends and to make wise decisions. There are multiple Data Mining techniques available to the Data diggers to make their life easy. In my study report I will be discussing about the different mining techniques, advantages and disadvantages and also about a use case of the data mining techniques on shark attack dataset to predict the attack of sharks based on various attributes.
In the next paragraphs, this thesis paper discussed various factors of 3 mentioned MDSS like main motivation for the implementation of new MDSS, different data mining (DM) algorithms used, techniques used to improve the
This research paper is about the Comparative analysis of three data mining software’s selected based on four important criteria Performance, Functionality, Usability and Ancillary Tasks support. “Data Mining is a field of study that is gaining importance and is used to explore data in search of patterns or relationships between variables and is applied to new data used for predictions”. (Statistics – Textbook. (n.d.). Retrieved November 17, 2015). Selection of the appropriate data mining tools is critical to any research or business and this could impact the business in terms of money, resources and time. Data experts
Data mining has become a key technology for companies and researchers in many fields , The number and diversity of applications is growing over the years it is expected a significant increase in this growth and there are many commercial space worked on DM prematurely recently been applied DM in all areas in the banking, insurance, retail, telecommunications and pharmacy, health and government and all e-business types and many of domain (Figure 2 ) Data mining applications in 2008(http://www. kdnuggets. com).,The authors highlight the importance of developing a appropriate back testing environment that become the collection of Enough evidence to convince the end users that the system can be used in practice
A constituent member of Symbiosis International (Deemed University) (SIDU), Estd. Under Section 3 of UGC Act, 1956 by Notification No. F.9-12/2001-U-3 of Govt. of India
Abstract— Data mining is the method of extracting the data from large database. Various data mining techniques are clustering, classification, association analysis, regression, summarization, time series analysis and sequence analysis, etc. Clustering is one of the important tasks in mining and is said to be unsupervised classification. Clustering is the techniques which is used to group similar objects or processes. In this work four clustering algorithms (K-Means, Farthest first, EM, Hierarchal) have been analyzed to cluster the data and to find the outliers based on the number of clusters. Here the WEKA (Waikato Environment for Knowledge Analysis) for analyzing the clustering techniques. Here the time, Clustered and un-clustered