Daniel Lassiter: “Nested and informative epistemics in a graphical models framework”

Loading Events

« All Events

  • This event has passed.

Daniel Lassiter: “Nested and informative epistemics in a graphical models framework”

April 10, 2015 @ 2:00 pm - 3:30 pm

| Stevenson Fireside Lounge | Free

daniel lassiterWe propose a new semantics and pragmatics for epistemic statements which builds on the systems of Yalcin (2012) and Moss (2015), but offers several empirical advantages. The key improvements stem from (a) modeling information states using probabilistic graphical models, a framework for knowledge representation that is highly influential in psychology, AI, and philosophy; and (b) a new method of treating probabilities as ordinary random variables, making it possible to condition information states on probability statements such as Rain is likely [roughly, P(rain) > .5]. This feature makes it possible to account for the dynamic effects of epistemic sentences while maintaining a thoroughgoing Bayesianism, with conditioning as the only update operation. Nested epistemic statements are also given a natural interpretation in terms of higher-order probability, which is implicitly defined once probabilities are treated as random variables. This approach simplifies Moss’ account and avoids some of its less desirable features, but the simplification re-introduces certain empirical challenges, which are discussed in conclusion.

Daniel Lassiter is Assistant Professor of Linguistics at Stanford University.

Details

Date:
April 10, 2015
Time:
2:00 pm - 3:30 pm
Cost:
Free
Event Category:
Event Tags:

Organizer

Linguistics Department
Phone:
(831) 459-2386
Email:
mjzimmer@ucsc.edu
Website:
http://linguistics.ucsc.edu/

Venue

Stevenson Fireside Lounge
Fireside Lounge‎, University of California Santa Cruz, Stevenson College
Santa Cruz, CA 95064 United States
+ Google Map
Phone:
831.459.5655
Website:
http://maps.ucsc.edu/content/7367/map_detail

This is a unique website which will require a more modern browser to work! Please upgrade today!