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  2. Decision boundary - Wikipedia

    en.wikipedia.org/wiki/Decision_boundary

    Decision boundaries are not always clear cut. That is, the transition from one class in the feature space to another is not discontinuous, but gradual. This effect is common in fuzzy logic based classification algorithms, where membership in one class or another is ambiguous. Decision boundaries can be approximations of optimal stopping boundaries.

  3. Mapping class group of a surface - Wikipedia

    en.wikipedia.org/wiki/Mapping_class_group_of_a...

    The class of in the mapping class group ⁡ does not depend on the choice of made above, and the resulting element is called the Dehn twist about . If c {\displaystyle c} is not null-homotopic this mapping class is nontrivial, and more generally the Dehn twists defined by two non-homotopic curves are distinct elements in the mapping class group.

  4. Entity–control–boundary - Wikipedia

    en.wikipedia.org/wiki/Entity–control–boundary

    The entity–control–boundary approach finds its origin in Ivar Jacobson's use-case–driven object-oriented software engineering (OOSE) method published in 1992. [1] [2] It was originally called entity–interface–control (EIC) but very quickly the term "boundary" replaced "interface" in order to avoid the potential confusion with object-oriented programming language terminology.

  5. Linear classifier - Wikipedia

    en.wikipedia.org/wiki/Linear_classifier

    In machine learning, a linear classifier makes a classification decision for each object based on a linear combination of its features.Such classifiers work well for practical problems such as document classification, and more generally for problems with many variables (), reaching accuracy levels comparable to non-linear classifiers while taking less time to train and use.

  6. Here's how Columbia elementary school boundaries will change ...

    www.aol.com/heres-columbia-elementary-school...

    Students at elementary and middle schools in Columbia may attend a different school starting with the 2025-26 school year. The Columbia School Board finalized school attendance area boundaries ...

  7. Markov blanket - Wikipedia

    en.wikipedia.org/wiki/Markov_blanket

    The Markov boundary always exists. Under some mild conditions, the Markov boundary is unique. However, for most practical and theoretical scenarios multiple Markov boundaries may provide alternative solutions. [2] When there are multiple Markov boundaries, quantities measuring causal effect could fail. [3]

  8. Mapping class group - Wikipedia

    en.wikipedia.org/wiki/Mapping_class_group

    The term mapping class group has a flexible usage. Most often it is used in the context of a manifold M. The mapping class group of M is interpreted as the group of isotopy classes of automorphisms of M. So if M is a topological manifold, the mapping class group is the group of isotopy classes of homeomorphisms of M.

  9. Multiclass classification - Wikipedia

    en.wikipedia.org/wiki/Multiclass_classification

    Hierarchical classification tackles the multi-class classification problem by dividing the output space i.e. into a tree. Each parent node is divided into multiple child nodes and the process is continued until each child node represents only one class. Several methods have been proposed based on hierarchical classification.