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  2. Proximity analysis - Wikipedia

    en.wikipedia.org/wiki/Proximity_analysis

    Proximity analysis is a class of spatial analysis tools and algorithms that employ geographic distance as a central principle. [1] Distance is fundamental to geographic inquiry and spatial analysis, due to principles such as the friction of distance, Tobler's first law of geography, and Spatial autocorrelation, which are incorporated into analytical tools. [2]

  3. Word error rate - Wikipedia

    en.wikipedia.org/wiki/Word_error_rate

    The general difficulty of measuring performance lies in the fact that the recognized word sequence can have a different length from the reference word sequence (supposedly the correct one). The WER is derived from the Levenshtein distance, working at the word level instead of the phoneme level. The WER is a valuable tool for comparing different ...

  4. Tellurometer - Wikipedia

    en.wikipedia.org/wiki/Tellurometer

    Typical distance measurements were between mountain tops. The tellurometer design yields high accuracy distance measurements over geodetic distances, but it is also useful for second order survey work, especially in areas where the terrain is rough and/or the temperatures extreme.

  5. Distance sampling - Wikipedia

    en.wikipedia.org/wiki/Distance_sampling

    These distances x are the detection distances that will be analyzed in further modeling. Objects are detected out to a pre-determined maximum detection distance w. Not all objects within w will be detected, but a fundamental assumption is that all objects at zero distance (i.e., on the line itself) are detected. Overall detection probability is ...

  6. True-range multilateration - Wikipedia

    en.wikipedia.org/wiki/True-range_multilateration

    There is no accepted or widely-used general term for what is termed true-range multilateration here . That name is selected because it: (a) is an accurate description and partially familiar terminology (multilateration is often used in this context); (b) avoids specifying the number of ranges involved (as does, e.g., range-range; (c) avoids implying an application (as do, e.g., DME/DME ...

  7. Tacheometry - Wikipedia

    en.wikipedia.org/wiki/Tacheometry

    Another device used in tacheometry to measure distance between the measuring station and a desired point is the subtense bar. [2] This is a rigid rod, usually of a material insensitive to change in temperature such as invar, of fixed length (typically 2 metres (6.6 ft)). The subtense bar is mounted on a tripod over the station to which the ...