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  2. Computerized adaptive testing - Wikipedia

    en.wikipedia.org/wiki/Computerized_adaptive_testing

    Computerized adaptive testing (CAT) is a form of computer-based test that adapts to the examinee's ability level. For this reason, it has also been called tailored testing . In other words, it is a form of computer-administered test in which the next item or set of items selected to be administered depends on the correctness of the test taker's ...

  3. List of undecidable problems - Wikipedia

    en.wikipedia.org/wiki/List_of_undecidable_problems

    Though undecidable languages are not recursive languages, they may be subsets of Turing recognizable languages: i.e., such undecidable languages may be recursively enumerable. Many, if not most, undecidable problems in mathematics can be posed as word problems : determining when two distinct strings of symbols (encoding some mathematical ...

  4. Solomonoff's theory of inductive inference - Wikipedia

    en.wikipedia.org/wiki/Solomonoff's_theory_of...

    The general scenario is the following: Given a class S of computable functions, is there a learner (that is, recursive functional) which for any input of the form (f(0),f(1),...,f(n)) outputs a hypothesis (an index e with respect to a previously agreed on acceptable numbering of all computable functions; the indexed function may be required ...

  5. Kruskal's tree theorem - Wikipedia

    en.wikipedia.org/wiki/Kruskal's_tree_theorem

    The version given here is that proven by Nash-Williams; Kruskal's formulation is somewhat stronger. All trees we consider are finite. Given a tree T with a root, and given vertices v, w, call w a successor of v if the unique path from the root to w contains v, and call w an immediate successor of v if additionally the path from v to w contains no other vertex.

  6. Course-of-values recursion - Wikipedia

    en.wikipedia.org/wiki/Course-of-values_recursion

    One known example is Ackermann's function, which is of the form A(m,n) and is provably not primitive recursive. Indeed, every new value A ( m +1, n ) depends on the sequence of previously defined values A ( i , j ), but the i -s and j -s for which values should be included in this sequence depend themselves on previously computed values of the ...

  7. Catalan number - Wikipedia

    en.wikipedia.org/wiki/Catalan_number

    Given a polygon P with n + 2 sides and a triangulation, mark one of its sides as the base, and also orient one of its 2n + 1 total edges. There are (4n + 2)C n such marked triangulations for a given base. Given a polygon Q with n + 3 sides and a (different) triangulation, again mark one of its sides as the base. Mark one of the sides other than ...

  8. Answer set programming - Wikipedia

    en.wikipedia.org/wiki/Answer_set_programming

    An early example of answer set programming was the planning method proposed in 1997 by Dimopoulos, Nebel and Köhler. [3] [4] Their approach is based on the relationship between plans and stable models. [5] In 1998 Soininen and Niemelä [6] applied what is now known as answer set programming to the problem of product configuration. [4]

  9. Catmull–Clark subdivision surface - Wikipedia

    en.wikipedia.org/wiki/Catmull–Clark_subdivision...

    Catmull–Clark surfaces are defined recursively, using the following refinement scheme. [1]Start with a mesh of an arbitrary polyhedron.All the vertices in this mesh shall be called original points.