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  2. Prediction by partial matching - Wikipedia

    en.wikipedia.org/wiki/Prediction_by_partial_matching

    Prediction by partial matching (PPM) is an adaptive statistical data compression technique based on context modeling and prediction. PPM models use a set of previous symbols in the uncompressed symbol stream to predict the next symbol in the stream. PPM algorithms can also be used to cluster data into predicted groupings in cluster analysis.

  3. Motion compensation - Wikipedia

    en.wikipedia.org/wiki/Motion_compensation

    Motion compensation in computing is an algorithmic technique used to predict a frame in a video given the previous and/or future frames by accounting for motion of the camera and/or objects in the video. It is employed in the encoding of video data for video compression, for example in the generation of MPEG-2 files. Motion compensation ...

  4. Shock-capturing method - Wikipedia

    en.wikipedia.org/wiki/Shock-capturing_method

    The Euler equations are the governing equations for inviscid flow. To implement shock-capturing methods, the conservation form of the Euler equations are used. For a flow without external heat transfer and work transfer (isoenergetic flow), the conservation form of the Euler equation in Cartesian coordinate system can be written as + + + = where the vectors U, F, G, and H are given by

  5. Streeter–Phelps equation - Wikipedia

    en.wikipedia.org/wiki/Streeter–Phelps_equation

    In order to make a more accurate model it is possible to include these factors using an expanded model. The expanded model is a modification of the traditional model and includes internal sources (reaeration and photosynthesis) and sinks (BOD, background BOD, SOD and respiration) of DO. It is not always necessary to include all of these parameters.

  6. Pulse-position modulation - Wikipedia

    en.wikipedia.org/wiki/Pulse-position_modulation

    Pulse-position modulation (PPM) is a form of signal modulation in which M message bits are encoded by transmitting a single pulse in one of possible required time shifts. [ 1 ] [ 2 ] This is repeated every T seconds, such that the transmitted bit rate is M / T {\displaystyle M/T} bits per second.

  7. Insurance company halts plan to put time limits on coverage ...

    www.aol.com/news/doctors-raising-alarm-insurance...

    He said that experts tried to explain the way anesthesia billing works — that one specific billing code could be used for nearly 200 different procedures, leaving great variability in the amount ...

  8. Everything at Old Navy is still 50% off for extended Cyber ...

    www.aol.com/lifestyle/everything-at-old-navy-is...

    We have good news and bad news. The good news is that Old Navy is running 50% off the entire site during Cyber Monday. The bad news is that it ends at midnight — and lots of our favorite styles ...

  9. Amplitude and phase-shift keying - Wikipedia

    en.wikipedia.org/wiki/Amplitude_and_phase-shift...

    DVB-Flexible Serially Concatenated Convolutional Turbo Codes with Near-Shannon bound performance for telemetry applications, CCSDS-131.2-O-1. Xiang, Xingyu; Valenti, Matthew C (2012-10-17). "Closing the Gap to the Capacity of APSK: Constellation Shaping and Degree Distributions".