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  2. Minimum mean square error - Wikipedia

    en.wikipedia.org/wiki/Minimum_mean_square_error

    Standard method like Gauss elimination can be used to solve the matrix equation for .A more numerically stable method is provided by QR decomposition method. Since the matrix is a symmetric positive definite matrix, can be solved twice as fast with the Cholesky decomposition, while for large sparse systems conjugate gradient method is more effective.

  3. Orthogonality principle - Wikipedia

    en.wikipedia.org/wiki/Orthogonality_principle

    Geometrically, we can see this problem by the following simple case where is a one-dimensional subspace: We want to find the closest approximation to the vector x {\displaystyle x} by a vector x ^ {\displaystyle {\hat {x}}} in the space W {\displaystyle W} .

  4. MMSE - Wikipedia

    en.wikipedia.org/wiki/MMSE

    MMSE can refer to: Mini–mental state examination, a questionnaire to measure cognitive impairment; Minimum mean square error, an estimation method that minimizes the mean square error; Multimedia Messaging Service Environment, the servers in a mobile telephony network required for Multimedia Messaging Service messaging.

  5. List of unsolved problems in chemistry - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Protein folding problem: Is it possible to predict the secondary, tertiary and quaternary structure of a polypeptide sequence based solely on the sequence and environmental information? Inverse protein-folding problem: Is it possible to design a polypeptide sequence which will adopt a given structure under certain environmental conditions?

  6. Mini–mental state examination - Wikipedia

    en.wikipedia.org/wiki/Mini–Mental_State...

    The mini–mental state examination (MMSE) or Folstein test is a 30-point questionnaire that is used extensively in clinical and research settings to measure cognitive impairment. [1] [2] It is commonly used in medicine and allied health to screen for dementia. It is also used to estimate the severity and progression of cognitive impairment and ...

  7. Addenbrooke's Cognitive Examination - Wikipedia

    en.wikipedia.org/wiki/Addenbrooke's_Cognitive...

    The Addenbrooke's Cognitive Examination [2] was originally developed as a theoretically motivated extension of the mini–mental state examination (MMSE) [3] which attempted to address the neuropsychological omissions and improve the screening performance of the latter. [4]

  8. The top 7 mental health challenges of the holidays and how to ...

    www.aol.com/top-7-mental-health-challenges...

    4. Overindulgence. Especially when entire days are spent roasting turkeys and hams, and bars are stocked for festive gatherings, overindulging in food or alcohol is common during the holiday season.

  9. Photographic developer - Wikipedia

    en.wikipedia.org/wiki/Photographic_developer

    The reversal process can also be carried out using 800 footcandle-seconds of light, which is used by process engineers to troubleshoot reversal bath chemistry problems. Next, the film is developed to completion in the colour developer bath, which contains CD-3 as the colour developing agent.