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Text MiningText mining is also known as text analysis. It is the procedure of transforming unstructured text into structured data for simple analysis. Text mining applies natural language processing (NLP), enabling machines to know the human language and process it automatically.It can be defined as the process of extracting essential information from standard language text. Some data that it can generate via text messages, records, emails, files are written in common language text. Text mining is generally used to draw beneficial insights or patterns from such data.Text mining is an automatic method that uses natural language processing to derive valuable ... Read More
Text mining is also known as text analysis. It is the procedure of transforming unstructured text into structured data for simple analysis. Text mining applies natural language processing (NLP), enabling machines to know the human language and process it automatically.It is defined as the procedure of extracting significant information from standard language text. Some data that it can generate via text messages, records, emails, files are written in common language text. Text mining is generally used to draw beneficial insights or patterns from such data.There are various applications of text mining which are as follows −Risk Management − Risk Management ... Read More
Text mining is also known as text analysis. It is the procedure of transforming unstructured text into structured data for simple analysis. Text mining applies natural language processing (NLP), enabling machines to know the human language and process it automatically.It is defined as the procedure of extracting significant information from standard language text. Some data that it can generate via text messages, records, emails, files are written in common language text. Text mining is generally used to draw beneficial insights or patterns from such data.There are the following areas of text mining in data mining which are as follows −Information ... Read More
Spatial Data MiningSpatial data mining is the application of data mining to spatial models. In spatial data mining, analysts use geographical or spatial records to create business intelligence or multiple results. This needed specific techniques and resources to obtain the geographical information into relevant and useful formats.The evolution of spatial data and extensive usage of spatial databases has governed spatial knowledge discovery. Spatial data mining can be learned as a process that decides some astonishing and hypothetically valuable patterns from spatial databases.There are several challenges involved in spatial data mining include recognizing patterns or discovering objects that are relevant to ... Read More
Various Systems of Power TransmissionFor the transmission of electrical power from the generating stations to the substations for distribution, there are various types of power transmission systems are adopted. However, for the transmission of electric power, three-phase three wire transmission system is universally adopted.The different possible systems for electric power transmission are discussed below.DC Transmission SystemWhen the electrical power is transmitted using direct current or voltage, then the transmission system is called the DC transmission system. The transmission system can be further classified into following three types −DC Two-Wire SystemDC Two-Wire with Mid-Point EarthedDC Three-Wire SystemSingle Phase AC SystemWhen the ... Read More
Depreciation of Power Station EquipmentThe reduction in the value of the equipment and other property of the power station every year is known as depreciation. Therefore, a suitable amount, called depreciation charge, must be set aside annually so that by the time the life span of the power plant is over, the collected amount equals to the cost of the replacement of the power plant.Sinking Fund Method of DepreciationIn the sinking fund method of depreciation, a fixed depreciation charge is made every year and the interest is compounded on it annually. The constant depreciation charge is such that the sum ... Read More
Units of EnergyThe capability of an object to do work is called its energy. In electrical engineering, the most important forms of energy are electrical energy, mechanical energy and thermal energy. Different units of measurement are used for the various forms of energy. Although, the units of electrical, mechanical and thermal energies are interchangeable.The units of various forms of energy are described as follows −Mechanical EnergyThe mechanical energy is defined as the product of force and distance, i.e., $$\mathrm{\mathrm{Mechanical \:energy\:=\:Force\: in \:Newton\:\times \:distance\: in \:meters}}$$Therefore, the SI unit of mechanical energy is Newton-meter (Nm) or Joules (J).The mechanical energy of ... Read More
ETLETL stands for Extract, transform, and load. It is the process data-driven organizations use to gather data from multiple sources and then bring it together to support discovery, reporting, analysis, and decision-making.It is tempting to think a creating a Data warehouse is simply extracting data from multiple sources and loading it into the database of a Data warehouse. The ETL process needed active inputs from multiple stakeholders including developers, analysts, testers, top administration, and is technically difficult.It can support its value as a tool for decision-makers. Data warehouse system needs to change with business development. ETL is a constant activity ... Read More
ELT stands for Extract, Load, and Transform. It is a data integration process for transferring raw data from a source server to a data system (such as a data warehouse or data lake) on a target server and then fitting the data for downstream uses.The extract and load procedure can be isolated from the transformation phase. Isolating the load phase from the transformation process deletes an inherent dependency between these phases. It can include the data necessary for the transformations, the extract and load process can include an element of data that can be essential in the future. The load ... Read More
ETL stands for Extract, transform, and load. It is the process data-driven organizations use to gather data from multiple sources and then bring it together to support discovery, reporting, analysis, and decision-making.The data sources can be divergent in type, format, volume, and reliability, hence the data required to be processed to be helpful when delivered together. The target data stores can be databases, data warehouses, or data lakes, based on the objectives and technical execution. There are the following steps of ETL which are as follows −Extract − During extraction, ETL recognizes the data and duplicate it from its sources, ... Read More