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A Markov chain is a type of Markov process that has either a discrete state space or a discrete index set (often representing time), but the precise definition of a Markov chain varies. [6] For example, it is common to define a Markov chain as a Markov process in either discrete or continuous time with a countable state space (thus regardless ...
A Tolerant Markov model (TMM) is a probabilistic-algorithmic Markov chain model. [6] It assigns the probabilities according to a conditioning context that considers the last symbol, from the sequence to occur, as the most probable instead of the true occurring symbol. A TMM can model three different natures: substitutions, additions or deletions.
Continuous-time Markov chain. A continuous-time Markov chain (CTMC) is a continuous stochastic process in which, for each state, the process will change state according to an exponential random variable and then move to a different state as specified by the probabilities of a stochastic matrix. An equivalent formulation describes the process as ...
The term Markov assumption is used to describe a model where the Markov property is assumed to hold, such as a hidden Markov model. A Markov random field extends this property to two or more dimensions or to random variables defined for an interconnected network of items. [2] An example of a model for such a field is the Ising model.
Push–pull strategy. The original meaning of push and pull, as used in operations management, logistics and supply chain management. In the pull system production orders begin upon inventory reaching a certain level, while on the push system production begins based on demand (forecasted or actual demand). The CONWIP is a hybrid between a pure ...
Board games played with dice. A game of snakes and ladders or any other game whose moves are determined entirely by dice is a Markov chain, indeed, an absorbing Markov chain. This is in contrast to card games such as blackjack, where the cards represent a 'memory' of the past moves. To see the difference, consider the probability for a certain ...
The Supply Chain Operations Reference (SCOR) model is a process reference model originally developed and endorsed by the Supply Chain Council, now a part of ASCM, as the cross-industry, standard diagnostic tool for supply chain management. [1] The SCOR model describes the business activities associated with satisfying a customer's demand, which ...
t. e. Supply and demand stacked in a conceptual chain. A supply chain is a complex logistics system that consists of facilities that convert raw materials into finished products and distribute them [ 1 ] to end consumers [ 2 ] or end customers. [ 3 ] Meanwhile, supply chain management deals with the flow of goods in distribution channels within ...