Skip to main content Accessibility help

We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.

Close cookie message
×
  1. Home
  2. Search

Refine search

Refine search

Access:
Content type:
Publication date:
Apply   From and To filters
Subject: Show more
Journals Show more
Publishers: Show more
Societies Show more
Series: Show more
Collections: Show more

Actions for selected content:

Select all | Deselect all
  • View selected items
  • Export citations
  • Download PDF (zip)
  • Save to Kindle
  • Save to Dropbox
  • Save to Google Drive

Save Search

You can save your searches here and later view and run them again in "My saved searches".

Please provide a title, maximum of 40 characters.
Cancel
×

2 results

  • Chapter 10 - Reflections on the Impact of Covid-19 on Children’s Education and Mental Health

  • Edited by Katie Finning, University of Exeter, Tamsin Ford, University of Exeter, Darren A. Moore, University of Exeter
  • Book:
    Mental Health and Attendance at School
    Published online:
    24 March 2022
    Print publication:
    31 March 2022, pp 181-191

  • Summary

    At the time of writing, much of the world’s children and young people face continuing disruption to everyday life as their governments attempt to contain the Covid-19 pandemic. The scale and speed with which this particular virus swept the world and the global nature of disruption to education, social care and health services are fortunately highly unusual. There are both direct and indirect effects of infection on mental health, as well the reciprocal relationship between mental health and education, as discussed in previous chapters, which are likely to amplify the impacts of the pandemic and resulting restrictions on children and young people. This chapter reviews the evidence that has emerged to date.

  • Minimizing the learning loss in adaptive control of Markov chains under the weak accessibility condition

  • Rajeev Agrawal
  • Journal:
    Journal of Applied Probability / Volume 28 / Issue 4 / December 1991
    Published online by Cambridge University Press:
    14 July 2016, pp. 779-790
    Print publication:
    December 1991

  • We consider the adaptive control of Markov chains under the weak accessibility condition with a view to minimizing the learning loss. A certainty equivalence control with a forcing scheme is constructed. We use a stationary randomized control scheme for forcing and compute a maximum likelihood estimate of the unknown parameter from the resulting observations. We obtain an exponential upper bound on the rate of decay of the probability of error. This allows us to choose the rate of forcing appropriately, whereby we achieve a o(f(n) log n) learning loss for any function as .