There are various components of focused web crawlers which are as follows −Seed detector − The service of the Seed detector is to decide the seed URLs for the definite keyword by fetching the first n URLs. The seed pages are identified and assigned a priority depending on the PageRank algorithm or the hits algorithm or algorithm same to that.Crawler Manager − The Crawler Manager is an essential component of the system following the Hypertext Analyzer. The component downloads the files from the global web. The URLs in the URL repository are retrieved and created to the buffer in the ... Read More

A focused web crawler is a hypertext system that investigates, acquires, indexes, and supports pages on a definite set of subjects that define a relatively narrow segment of the web. It requires a very small investment in the hardware and web resources and yet manages respectable coverage at a quick rate, simply because there is relatively small to do.The focused web crawler is conducted by a classifier that learns to identify relevance from examples embedded in a topic taxonomy, and a distiller which recognizes topical vantage points on the internet.Focused web crawlers use vertical search engines to crawl web pages ... Read More

Data Warehousing is an approach that can collect and handle data from multiple sources to give the business a meaningful business insight. A data warehouse is specifically designed to support management decisions.In simple terms, a data warehouse defines a database that is maintained independently from an organization’s operational databases. Data warehouse systems enable the integration of multiple application systems. They provide data processing by offering a solid platform of consolidated, historical information for analysis.Data warehouses generalize and centralize data in multidimensional space. The development of data warehouses includes data cleaning, data integration, and data transformation and can be viewed as ... Read More

Backup and recovery define the process of backing up records in the method of a loss and setting up systems that enable that data recovery because of data loss. Backing up data needed copying and archiving computer information, so that it is applicable in case of data deletion or corruption.The goal of the backup is to make a copy of data that can be renewed in the event of a primary data failure. Primary data failures can be the outcome of hardware or software failure, data corruption, or a human-caused event, including a malicious attack (virus or malware), or accidental ... Read More

Data Warehousing is an approach that can collect and handle data from several sources to provide the business a meaningful business insight. A data warehouse is specifically designed to support management decisions.In simple terms, a data warehouse defines a database that is maintained independently from an organization’s operational databases. Data warehouse systems enable the integration of multiple application systems. They provide data processing by offering a solid platform of consolidated, historical information for analysis.Data warehouses generalize and centralize data in multidimensional space. The construction of data warehouses contains data cleaning, data integration, and data transformation and can be looked at ... Read More

Backup and recovery define the process of backing up records in the method of a loss and setting up systems that enable that data recovery because of data loss. Backing up data needed copying and archiving computer information, so that it is applicable in case of data deletion or corruption.The goal of the backup is to make a copy of data that can be renewed in the event of a primary data failure. Primary data failures can be the outcome of hardware or software failure, data corruption, or a human-caused event, including a malicious attack (virus or malware), or accidental ... Read More

Data Warehousing is an approach that is generally used to collect and handle data from multiple sources to give the business significant business insight. A data warehouse is specifically designed to support management decisions.In simple terms, a data warehouse defines a database that is maintained independently from an organization’s operational databases. Data warehouse systems enable the integration of multiple application systems. They provide data processing by offering a solid platform of consolidated, historical information for analysis.Data warehouses generalize and centralize data in multidimensional space. The construction of data warehouses contains data cleaning, data integration, and data transformation and can be ... Read More

Data mining is the process of finding useful new correlations, patterns, and trends by transferring through a high amount of data saved in repositories, using pattern recognition technologies including statistical and mathematical techniques.It is the analysis of factual datasets to discover unsuspected relationships and to summarize the records in novel methods that are both logical and helpful to the data owner.It is the procedure of selection, exploration, and modeling of high quantities of information to find regularities or relations that are at first unknown to obtain clear and beneficial results for the owner of the database.By outsourcing data mining, all ... Read More

There are various features of OLAP Servers which are as follows −Multidimensional conceptual view − A user view of the enterprise data is multidimensional. The conceptual view of OLAP models should be multidimensional. The multidimensional models can be manipulated more easily and intuitively than in the case of single-dimensional models.Transparency − A user should be able to get full value from an OLAP engine without regarding the source of the data. The OLAP system’s technology, underlying database, and computing architecture, and the heterogeneity of input data sources should be transparent to users to preserve their productivity and proficiency with familiar ... Read More

It is the process that manages the queries and speeds them up by directing queries to the most effective data source. This process also ensures that all the system resources are used most effectively, usually by scheduling the execution of queries. The query management process monitors the actual query profiles that are used to determine which aggregations to generate.This process services at all times that the data warehouse is created accessible to end-users. There are no major consecutive steps within this process, rather there are a set of facilities that are constantly in operations.OLAP is an element of software technology ... Read More