نتایج جستجو برای: recursive algebraic approach
تعداد نتایج: 1358323 فیلتر نتایج به سال:
Algebraic data types and catamorphisms (generic folds) play a central role in functional programming as they allow programmers to define recursive tree-like data structures and operations on them uniformly by structural recursion. Likewise, in object-oriented programming recursive hierarchies of objects play a central role for the same reason, although the execution is quite different. There is...
Solutions of recursive program schemes over a given signature Σ were characterized by Bruno Courcelle as precisely the context-free (or algebraic) Σ-trees. These are the finite and infinite Σ-trees yielding, via labelling of paths, context-free languages. Our aim is to generalize this to finitary endofunctors H of general categories: we construct a monad C “generated” by solutions of recursive ...
Solutions of recursive program schemes over a given signature Σ were characterized by Bruno Courcelle as precisely the context-free (or algebraic) Σ-trees. These are the finite and infinite Σ-trees yielding, via labelling of paths, context-free languages. Our aim is to generalize this to finitary endofunctors H of general categories: we construct a monad CH “generated” by solutions of recursive...
Recursive algebraic data types (term algebras, ADTs) are one of the most well-studied theories in logic, and find application in contexts including functional programming, modelling languages, proof assistants, and verification. At this point, several state-of-the-art theorem provers and SMT solvers include tailor-made decision procedures for ADTs, and version 2.6 of the SMT-LIB standard includ...
D-finite functions and P-recursive sequences are defined in terms of linear differential and recurrence equations with polynomial coefficients. In this paper, we introduce a class of numbers closely related to D-finite functions and P-recursive sequences. It consists of the limits of convergent P-recursive sequences. Typically, this class contains many well-known mathematical constants in addit...
This paper focuses on the tracking and synchronization problems of hyperchaotic systems based on active backstepping method. The method consists of a recursive approach that interlaces the choice of a Lyapunov function with the design of feedback control. First, a nonlinear recursive active backstepping control vector is designed to track any desired trajectory in hyperchaotic Wang system. Furt...
Computation of the Cramer-Rao bound involves inversion of the Fisher information matrix (FIM). The inversion can become computationally intractable when the number of unknown parameters is large. Hero has presented a re-cursive, monotonically convergent and computationally ef-cient algorithm to invert sub-matrices of the FIM corresponding to a small region of interest in image reconstruction 1]...
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