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  2. Efficiency - Wikipedia

    en.wikipedia.org/wiki/Efficiency

    Efficiency. Efficiency is the often measurable ability to avoid making mistakes or wasting materials, energy, efforts, money, and time while performing a task. In a more general sense, it is the ability to do things well, successfully, and without waste. In more mathematical or scientific terms, it signifies the level of performance that uses ...

  3. Efficiency (statistics) - Wikipedia

    en.wikipedia.org/wiki/Efficiency_(statistics)

    Efficiency (statistics) In statistics, efficiency is a measure of quality of an estimator, of an experimental design, [1] or of a hypothesis testing procedure. [2] Essentially, a more efficient estimator needs fewer input data or observations than a less efficient one to achieve the Cramér–Rao bound. An efficient estimator is characterized ...

  4. Effectiveness - Wikipedia

    en.wikipedia.org/wiki/Effectiveness

    Effectiveness. Look up effectiveness in Wiktionary, the free dictionary. Effectiveness or effectivity[1] is the capability of producing a desired result or the ability to produce desired output. When something is deemed effective, it means it has an intended or expected outcome, or produces a deep, vivid impression.

  5. Cost-effectiveness analysis - Wikipedia

    en.wikipedia.org/wiki/Cost-effectiveness_analysis

    Cost-effectiveness analysis (CEA) is a form of economic analysis that compares the relative costs and outcomes (effects) of different courses of action. Cost-effectiveness analysis is distinct from cost–benefit analysis, which assigns a monetary value to the measure of effect. [1] Cost-effectiveness analysis is often used in the field of ...

  6. NTU method - Wikipedia

    en.wikipedia.org/wiki/NTU_Method

    The number of transfer units (NTU) method is used to calculate the rate of heat transfer in heat exchangers (especially parallel flow, counter current, and cross-flow exchangers) when there is insufficient information to calculate the log mean temperature difference (LMTD). Alternatively, this method is useful for determining the expected heat ...

  7. Economic efficiency - Wikipedia

    en.wikipedia.org/wiki/Economic_efficiency

    Economic efficiency. In microeconomics, economic efficiency, depending on the context, is usually one of the following two related concepts: [ 1 ] Allocative or Pareto efficiency: any changes made to assist one person would harm another. Productive efficiency: no additional output of one good can be obtained without decreasing the output of ...

  8. Evaluation measures (information retrieval) - Wikipedia

    en.wikipedia.org/wiki/Evaluation_measures...

    Evaluation measures (information retrieval) Evaluation measures for an information retrieval (IR) system assess how well an index, search engine, or database returns results from a collection of resources that satisfy a user's query. They are therefore fundamental to the success of information systems and digital platforms.

  9. Overall equipment effectiveness - Wikipedia

    en.wikipedia.org/.../Overall_equipment_effectiveness

    Overall equipment effectiveness. Overall equipment effectiveness[1] (OEE) is a measure of how well a manufacturing operation is utilized (facilities, time and material) compared to its full potential, during the periods when it is scheduled to run. It identifies the percentage of manufacturing time that is truly productive.