COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. |

University of Cambridge > Talks.cam > Logic and Semantics Seminar (Computer Laboratory) > An algebraic theory of type-and-effect systems

## An algebraic theory of type-and-effect systemsAdd to your list(s) Download to your calendar using vCal - Ohad Kammar (University of Cambridge)
- Friday 13 December 2013, 13:00-14:00
- Room FW26, Computer Laboratory, William Gates Building.
If you have a question about this talk, please contact Jonathan Hayman. We present a theory of Gifford-style type-and-effect annotations, where effect annotations are sets of effects, such as memory accesses or exceptions. Our theory accounts for effect-dependent program transformations for functional-imperative languages, as used in optimising compilers. Generality is achieved by recourse to the theory of algebraic effects, a development of Moggi’s monadic theory of computational effects that emphasises the operations causing the effects at hand. The key observation is that annotation effects denote algebraic operations. After presenting our general type-and-effect system and its semantics, we validate and generalise existing optimisations and add new ones. Our theory also suggests a classification of these optimisations into three classes, structural, local, and global: structural optimisations always hold; local ones depend on the effect theory at hand; and global ones depend on the global nature of that theory, such as idempotency or absorption laws. We also give modularly-checkable necessary and sufficient conditions for validating the optimisations. Joint work with Gordon Plotkin. This talk is part of the Logic and Semantics Seminar (Computer Laboratory) series. ## This talk is included in these lists:- All Talks (aka the CURE list)
- Computer Laboratory talks
- Computing and Mathematics
- Logic and Semantics Seminar (Computer Laboratory)
- Room FW26, Computer Laboratory, William Gates Building
- School of Technology
- Trust & Technology Initiative - interesting events
Note that ex-directory lists are not shown. |
## Other listsCambridge International Development Conference 2015 Sidgwick Site Equalities Improvement Network SBR Graduate Talks## Other talksTunable Functional Magnetic Skyrmions at Room Temperature Kolmogorov Complexity and Gödel’s Incompleteness Theorems Putting Feminist New Materialism to work through affective methodologies in early childhood research Stakeholder perceptions across scales of governance: areas of controversy and consensus related to the Indonesian peatland fires Modelling seasonal acceleration of land terminating sectors of the Greenland Ice Sheet margin NatHistFest: the 99th Conversazione and exhibition on the wonders of the natural world. |