Skip to main content
stochastic process

stochastic process

9.8
A series of random events that change over time
  • noun
  • /stəˈkæs.tɪk ˈprəʊ.sɛs/
  • Specialized
translation icon : proceso estocástico
  • In machine learning, a stochastic process can help predict outcomes based on random variables changing continually.

Examples

  • This method utilizes a stochastic process for modeling grain nucleation and a deterministic process to model grain growth.

    Academic text (2018)
  • So Markov chain is an example of a stochastic process, which basically just means random variables evolving over time.

  • And so this is now a stochastic process, this thing.

  • OK, we have a stochastic process which now is multivariate.

  • So you have this stochastic process and at time T you are at XT.

  • Markov chains are stochastic processes transitioning in discrete time steps through a finite set of states.

    Academic text (2018)
  • Assuming that connection formation is a stochastic process, which implies that connection probability declines with spatial distance, this process leads to a higher connection probability between areas that are generated during nearby time windows.

    Academic text (2018)
  • Sugihara and May (1990), for example, noted that a tailored stochastic process can mimic the patterns found in a given complex deterministic process.

    Academic text (2012)
  • Signals generated by purely stochastic processes can appear identical to those generated by a complex nonlinear system when viewed through the lens of certain data-analysis tools.

    Academic text (2012)
  • A stochastic process is often used to model stock prices that fluctuate randomly over time.

How Random

stochastic process
  • Specialized
9.8
deterministic
  • Specialized
8 7.7

Surface Forms

Morphology

stochastic + process

The meaning 'a process involving randomness' is directly and compositionally derived from 'stochastic' (involving random variables/probability) modifying 'process' (a sequence of changes over time). This follows a standard adjective+noun pattern common across languages and would be understandable to a B1 learner who already knows the constituent words, despite the term's technical register.

Etymology

Stochastic process comes from a simple image: process is a series of steps and stochastic means 'by chance', like a walker who flips a coin at each step to decide where to go. So, a stochastic process means 'something that changes over time in a way you cannot predict'.