CSDatawarehousing-and -DataMining · CSCharp-and-Dot-Net- Framework · CS System Software · CSArtificial-IntelligenceReg. Syllabus. DATA WAREHOUSING AND MINING UNIT-II DATA WAREHOUSING Data Warehouse Components, Building a Data warehouse, Mapping Data. To Download the Notes with Images Click HERE UNIT III DATA MINING Introduction – Data – Types of Data – Data Mining Functionalities.

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lecturer notes in cs2032

Data discrimination is a comparison of the general features of target class data objects with the general features of objects from one or a set of contrasting classes. We will provide you with customized solutions and equipment according to your individual needs. More Info “placeholder or filler text.

Post was not sent – check your email addresses! Background knowledge, or information regarding the domain under study, may be used to guide the discovery process and allow discovered patterns to be expressed in concise terms and at different levels of abstraction.

Web services that provide keyword-based searches without understanding the context behind the Web pages can only offer limited help to users.

This approach is highly desirable because it facilitates efficient nores of data mining functions, high system performance, and an integrated information processing environment. Customized products and complete solutions.

Other examples of domain knowledge are additional interestingness constraints or jotes, and metadata e. Mining data streams involves the efficient discovery of general patterns and nnotes changes within stream data.

The AllElectronics company is described by the following relation tables: That is, emphasis is placed on efficient and scalable data mining techniques. Because relational databases and data warehouses are widely used, the development of efficient and effective data mining systems for such data is cs032. For improved readability, only some of the cube cell values are shown. A sophisticated data mining system will often adopt multiple data mining techniques or work out an effective, integrated technique that combines the merits of a few individual approaches.


The data stored in a database may reflect noise, exceptional cases, or incomplete data objects. Data mining systems can be categorized according to the kinds of knowledge they mine, that is, based on data mining functionalities, such as characterization, discrimination, association and correlation analysis, classification, prediction, clustering, outlier analysis, and evolution analysis.

Data transformation operations, such as normalization and aggregation, are additional data preprocessing procedures that would contribute toward the success of the mining process.

We examine each of these schemes, nnotes follows: What Motivated Data Mining? Data can be associated with classes or concepts. Fundamentals of data mining. For example, in the AllElectronics store, classes of items for nootes include computers and printersand concepts of customers include bigSpenders and budgetSpenders.

Cs20322 that AllElectronics is a successful international company, with branches around the world. To introduce the concept of Data Warehousing and study in detail about the various components of the Data warehouse. In addition, consider expert system technologies, which typically rely on users or domain experts to manually input knowledge into knowledge bases.

Object-relational databases are constructed based on an object-relational data model.

lecturer notes in cs

So this Important Questions may or may not come to examinations so concentrate more on these important questions, and also other things. Tables can also be used to represent the relationships between or among multiple relation tables.

However, in some applications such as fraud detection, the rare events can be more interesting than the more regularly occurring cd2032.

For efficient data mining, it is highly recommended to push the evaluation of pattern interestingness as deep as possible into the mining notess so as to confine the search to only the interesting patterns. However, in industry, in media, and in the database research milieu, the term data mining is becoming more popular than the longer term of knowledge discovery from data.


This association rule involves a single attribute or predicate i. Alternatively, the pattern evaluation module may be integrated with the mining module, depending on the implementation of the data mining method used. Conceptually, the object-relational data model inherits the essential concepts of object-oriented databases, where, in general terms, each entity is considered as an object.

cs2032 data warehouse and mining important question

We are the leading service provider and supplier in the field of noes equipment and solutions. Thus it is difficult for computers to understand the semantic meaning of diverse Web pages and structure them in an organized way for systematic information retrieval and data mining.

Such a decision tree may help you understand the impact of the given sales campaign and design a more effective campaign for the future. Data mining queries and functions are optimized based on mining query analysis, data structures, indexing schemes, and query processing methods of a DB or DW notfs. The standard deviation, notss, of the observations is the square root of the variance, s2. The data you wish to analyze by data mining techniques are incomplete lacking attribute values or certain attributes of interest, or containing only aggregate data jn, noisy containing errors, or outlier values that deviate from the expectedand inconsistent e.

The first quartile, denoted by Q 1, is the 25th percentile; the third quartile, denoted by Q 3, is the 75th percentile.

Such knowledge can include concept hierarchies, used to organize attributes or attribute values into different levels of abstraction.

Efficiency and scalability of data mining algorithms:

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