Showing 25 pages using this property.
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Data pre-processing + | 1. Data preprocessing is a data mining technique that involves transforming raw data into an understandable format. Real-world data is often incomplete, inconsistent, and/or lacking in certain behaviors or trends, and is likely to contain many errors. Data preprocessing is a proven method of resolving such issues. Data preprocessing prepares raw data for further processing., 2. Data preprocessing describes any type of processing performed on raw data to prepare it for another processing procedure. Commonly used as a preliminary data mining practice, data preprocessing transforms the data into a format that will be more easily and effectively processed for the purpose of the user -- for example, in a neural network. There are a number of different tools and methods used for preprocessing, including: sampling, which selects a representative subset from a large population of data; transformation, which manipulates raw data to produce a single input; denoising, which removes noise from data; normalization, which organizes data for more efficient access; and feature extraction, which pulls out specified data that is significant in some particular context. |
Data quality + | 1. Data quality refers to the level of quality of data., 2. The fitness for use of information; information that meets the requirements of its authors, users, and administrators. (Martin Eppler) |
Database + | 0. A database is an organized collection of data. It is the collection of schemas, tables, queries, reports, views and other objects, 1. A comprehensive collection of related data organized for convenient access, generally in a computer., 2. A database is a collection of information that is organized so that it can be easily accessed, managed and updated |
Database Managment System + | 1. A DBMS is a computer software for managing and editing databases., 2. The Software "pgAdmin" is a DBMS for PostgreSQL-Databases. |
Database management system + | 0. A database management system (DBMS) is system software for creating and managing databases., 1. a software system that facilitates the creation and maintenance and use of an electronic database, 2. is a computer software application that interacts with the user, other applications, and the database itself to capture and analyze data. |
Database schema + | 2. The formal definition of a database schema is a set of formulas (sentences) called integrity constraints imposed on a database. These integrity constraints ensure compatibility between parts of the schema. All constraints are expressible in the same language., 1. A database schema of a database system is its structure described in a formal language supported by the database management system. |
Database server + | 1. A database server is a computer program that provides database services to other computer programs or computers, as defined by the client–server model., 2. A Database server is a network computer that hosts a database |
Database system + | 1. A DBS is a database that is managed and processed with a DBMS. |
Database trigger + | 1. A database trigger is procedural code that is automatically executed in response to certain events on a particular table or view in a database. The trigger is mostly used for maintaining the integrity of the information on the database. For example, when a new record (representing a new worker) is added to the employees table, new records should also be created in the tables of the taxes, vacations and salaries., 2. A trigger is a named database object that is associated with a table, and that activates when a particular event occurs for the table. Some uses for triggers are to perform checks of values to be inserted into a table or to perform calculations on values involved in an update. |
Dataleak + | 1. Data loss incidents turn into data leak incidents in cases where media containing sensitive information is lost and subsequently acquired by an unauthorized party. However, a data leak is possible without losing the data on the originating side. Other terms associated with data leakage prevention are information leak detection and prevention (ILDP), information leak prevention (ILP), content monitoring and filtering (CMF), information protection and control (IPC) and extrusion prevention system (EPS), as opposed to intrusion prevention system. In data leakage incidents, sensitive data is disclosed to unauthorized parties by either malicious intent or an inadvertent mistake. Sensitive data includes private or company information, intellectual property (IP), financial or patient information, credit-card data and other information., 2. Data loss is any process or event that results in data being corrupted, deleted and/or made unreadable by a user and/or software or application., It occurs when one or more data elements can no longer be utilized by the data owner or requesting application., Data loss is also known as data leakage. |
Delimiter + | 2. A delimiter is one or more characters that separates text strings. Common delimiters are commas (,), semicolon (;), quotes ( ", ' ), braces ({}), pipes ( |
Demand + | Generally, the need for energy, Colloquially referred to as energy consumption |
Demand sectors + | 1. General term for different consumptions (households; industry; commercial sector; transport), 2. It includes only energy demand sectors |
Depreciation + | 1. The planned or unplanned impairment, for example by aging or wear, of an asset., 2. Depreciation is the reduction in the value of assets. This impairment is due to wear and tear, changes in the market price or other factors of diminution. |
Derived Result + | Quantity which is calculated during post-processing by appropriate formulae (e.g. efficiency, mean value, full load hour, electricity generation costs, cumulative amount of energy). Key performance indicators (KPI) should be suitable to quantify differences between the scenarios. The definition of a KPI depends on the research topic. Usually it is necessary to define various KPIs. |
Developer + | 1. A person who creates or edits software and/or models |
Developer Documentation + | Proof of the individual versions on the basis of changes, the underlying goals and requirements and the concepts used as specifications (eg in specifications and specifications); involved persons and organizational units; successful and unsuccessful development directions; Planning and decision documents etc |
Device driver + | 1. In program engineering, a driver is a device driver, a subprogram or a control program that adapts an operating system or standard program to unsupported bus systems and interfaces of peripherals such as keyboards, printers, screens. Therefore, the names device driver, printer driver or screen driver., 2. A device driver is a computer program that operates or controls a particular type of device that is attached to a computer. A driver provides a software interface to hardware devices, enabling operating systems and other computer programs to access hardware functions without needing to know precise details of the hardware being used. |
Diffuse sky radiation + | 1., solar radiation reaching the Earth's surface after having been scattered from the direct solar beam by molecules or suspensoids in the atmosphere; reason for changes in the color of the sky ., 2. Diffuse Sky Radiation is the sun's radiation that has been scattered by molecules or particles in the Atmospere before it reaches the earth's Surface. |
Diffusion + | 1. Diffusion is the net movement of molecules or atoms from a region of high concentration (or high chemical potential) to a region of low concentration (or low chemical potential). This is also referred to as the movement of a substance down a concentration gradient., 2. The passive movement of molecules or particles along a concentration gradient, or from regions of higher to regions of lower concentration. |
Dimension + | Dimension representing a single value or a timeseries. |
Diode + | 1. In electronics, a diode is a two-terminal electronic component that conducts primarily in one direction (asymmetric conductance); it has low (ideally zero) resistance to the current in one direction, and high (ideally infinite) resistance in the other. A semiconductor diode, the most common type today, is a crystalline piece of semiconductor material with a p–n junction connected to two electrical terminals., 2. A diode is an electrical component designed to conduct electric current in only one direction. It has two ends (or terminals), each with an electrode of a different charge. The "anode" end has a positive charge relative to the negatively charged "cathode" end. Current naturally flows in the direction from the anode to the cathode. |
Direct Current + | 1. Direct current (DC) is the unidirectional flow of electric charge. Direct current is produced by sources such as batteries, power supplies, thermocouples, solar cells, or dynamos. Direct current may flow in a conductor such as a wire, but can also flow through semiconductors, insulators, or even through a vacuum as in electron or ion beams. The electric current flows in a constant direction, distinguishing it from alternating current (AC)., 2. Direct current (DC) is electrical current which flows consistently in one direction. The current that flows in a flashlight or another appliance running on batteries is direct current. |
Direct Normal Irradiation + | 1. Direct normal irradiation is the amount of direct solar irradiance that is received per unit area by a surface which is perpendicular to the sun’s rays., 2. Direct irradiance is the quotient of the radiant flux on a given plane receiver surface received from a small solid angle centered on the sun’s disk to the area of that surface. If the plane is perpendicular to the axis of the solid angle, direct normal solar irradiance is received |
Discrete Data + | 1.Data that can only take certain values. For example: The number of students in a class. You can't have half a student., 2. Discrete data are vectors or raster data storage systems, which represents objects. A discrete object has known and definable boundaries. It is easy to define precisely where the object begins and where it ends. For example: A lake is a discrete object within the surrounding landscape. |