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  2. L1-norm principal component analysis - Wikipedia

    en.wikipedia.org/wiki/L1-norm_principal...

    In ()-(), L1-norm ‖ ‖ returns the sum of the absolute entries of its argument and L2-norm ‖ ‖ returns the sum of the squared entries of its argument.If one substitutes ‖ ‖ in by the Frobenius/L2-norm ‖ ‖, then the problem becomes standard PCA and it is solved by the matrix that contains the dominant singular vectors of (i.e., the singular vectors that correspond to the highest ...

  3. Lp space - Wikipedia

    en.wikipedia.org/wiki/Lp_space

    Techniques which use an L1 penalty, like LASSO, encourage sparse solutions (where the many parameters are zero). [14] Elastic net regularization uses a penalty term that is a combination of the L 1 {\displaystyle L^{1}} norm and the squared L 2 {\displaystyle L^{2}} norm of the parameter vector.

  4. Regularization (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Regularization_(mathematics)

    A comparison between the L1 ball and the L2 ball in two dimensions gives an intuition on how L1 regularization achieves sparsity. Enforcing a sparsity constraint on can lead to simpler and more interpretable models. This is useful in many real-life applications such as computational biology. An example is developing a simple predictive test for ...

  5. Normalization (machine learning) - Wikipedia

    en.wikipedia.org/wiki/Normalization_(machine...

    Query-Key normalization (QKNorm) [32] normalizes query and key vectors to have unit L2 norm. In nGPT , many vectors are normalized to have unit L2 norm: [ 33 ] hidden state vectors, input and output embedding vectors, weight matrix columns, and query and key vectors.

  6. System Management Mode - Wikipedia

    en.wikipedia.org/wiki/System_Management_Mode

    SMM is a special-purpose operating mode provided for handling system-wide functions like power management, system hardware control, or proprietary OEM designed code. It is intended for use only by system firmware (BIOS or UEFI), not by applications software or general-purpose systems software. The main benefit of SMM is that it offers a ...

  7. Structured systems analysis and design method - Wikipedia

    en.wikipedia.org/wiki/Structured_systems...

    Structured systems analysis and design method (SSADM) is a systems approach to the analysis and design of information systems. SSADM was produced for the Central Computer and Telecommunications Agency , a UK government office concerned with the use of technology in government, from 1980 onwards.

  8. CPU cache - Wikipedia

    en.wikipedia.org/wiki/CPU_cache

    A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost (time or energy) to access data from the main memory. [1] A cache is a smaller, faster memory, located closer to a processor core, which stores copies of the data from frequently used main memory locations.

  9. Normalization - Wikipedia

    en.wikipedia.org/wiki/Normalization

    Normalization model, used in visual neuroscience; Normalization in quantum mechanics, see Wave function § Normalization condition and normalized solution; Normalization (sociology) or social normalization, the process through which ideas and behaviors that may fall outside of social norms come to be regarded as "normal"