. Make appropriate use of diagrams to illustrate the underlying concepts/components of database management system and information retrieval system. Differentiate between structured and non structured data. Give examples for each. Answer Structured data is defined as a data that are record and being filed in the database to make it can be used efficiently.
The origins of fuzzy logic based techniques can be traced in fuzzy set theory. These techniques have found mass appeal in various computational and manufacturing engineering domains. Fuzzy logic have been successfully used to solve variety of problems in system identification, signal processing and control –. Recently a lot of attention is being paid towards application of fuzzy logic in various software engineering processes and artifacts such as project management, quality assurance, software testing and traceability etc. A fuzzy model structure can be represented by a set of fuzzy If-Then rules .
It includes buying and selling any item over the Internet, electronic fund transfer, shipment tracking, and all other methods of conducting business over digital networks. Also, there is consumer-to-consumer e-commerce that involves consumers selling products directly to each other using the internet. A good example will be the auction site eBay. Clearly, E-commerce will change the face of business forever. Companies that are thousands of miles away can complete business transactions in a matter of seconds as well as exchange information.
You can access any site, anywhere in the world from the comfort of your own chair. Now the consumer has access to several things they didn't before. The consumer now has diversity. With the entire internet at ... ... middle of paper ... ...rica Goes On-Line). There are several security issues and risks involved in e- business.
GAMS -- a high-level modeling system for mathematical programming problems. DISGCL -- an interpreter language based on plotting library DISLIN. Glish (within AIPS++ system) -- a language/environment for data acquisition/analysis. Isaac -- scientific calculator and programming language. MAX -- Xbase compiler with integrated database engine.
1.2 What is Data Mining? Structure of Data Mining Generally, data mining can be associated with classes and concepts. data mining (sometimes called data or knowledge discovery) is the process of analyzing data from different perspectives and summarizing it into useful information - information that can be used to increase revenue, cuts costs, or both. Data mining software is the best analytical tools for analyzing data. It allows users to analyze data from many different dimensions or angles, categorize it, and summarize the relationships identified.
Data stream mining is a stimulating field of study that has raised challenges and research issues to be addressed by the database and data mining communities. The following is a discussion of both addressed and open research issues . Handling the continuous flow of data streams This is a data management issue. Traditional database management systems are not capable of dealing with such continuous high data rate. Novel indexing, storage and querying techniques are required to handle this non stopping fluctuated flow of information streams.
Techniques in Text Mining The application of techniques from different areas such as Information Extraction, Information Retrieval, Natural Language Processing(NLP), Query Processing, Categorization and Clustering. All these stages of Text Mining process can be combined into a single workflow. Figure 1: Techniques in Text Mining Information Extraction Information Extraction is the process of extracting information from unstructured document using the techniques. The main objective of Information Extraction is to find specific data or information in natural language text. This information is stored in database like patterns and it can be available for further use.
The third concept in the object model is the Encapsulation which is the concept of including processing or behavior with the object instances defined by the class. Encapsulation allows code and data to be packaged together. The third database model would be the UML model that stands for Unified Modeling Language used for writing software blue prints. The UML can be used to visualize, specify, construct, and document the artifacts of a software-intensive system. (Safari Tech Books Online, 2002, chap.
The aim of UML’s implementation is to provide software developers , system architects, and software engineers with tools for analysis, design and implementation of software-based systems. We can find that there are a few types of UML including class, use case, object, collaboration, sequence, activity, component deployment and statechart. For class diagrams, it become the backbone of almost every object oriented method and describe the static structure of a system. Other than that, we using actors and use cases in uses case diagram to represent the system functionality. Object diagrams was function as describing the static structure of a system at a particular time.