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20: Random Walks

  • Page ID
    • Eric Lehman, F. Thomson Leighton, & Alberty R. Meyer
    • Google and Massachusetts Institute of Technology via MIT OpenCourseWare
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    Random Walks are used to model situations in which an object moves in a sequence of steps in randomly chosen directions. For example, physicists use threedimensional random walks to model Brownian motion and gas diffusion. In this chapter we’ll examine two examples of random walks. First, we’ll model gambling as a simple 1-dimensional random walk—a walk along a straight line. Then we’ll explain how the Google search engine used random walks through the graph of world-wide web links to determine the relative importance of websites.

    This page titled 20: Random Walks is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by Eric Lehman, F. Thomson Leighton, & Alberty R. Meyer (MIT OpenCourseWare) .

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