Download e-book for iPad: Advances in Automatic Differentiation (Lecture Notes in by Christian H. Bischof, H. Martin Bücker, Paul Hovland, Uwe

By Christian H. Bischof, H. Martin Bücker, Paul Hovland, Uwe Naumann, Jean Utke

ISBN-10: 3540689354

ISBN-13: 9783540689355

ISBN-10: 3540689427

ISBN-13: 9783540689423

This assortment covers advances in computerized differentiation concept and perform. desktop scientists and mathematicians will know about fresh advancements in automated differentiation idea in addition to mechanisms for the development of sturdy and robust computerized differentiation instruments. Computational scientists and engineers will enjoy the dialogue of assorted purposes, which supply perception into powerful ideas for utilizing automated differentiation for inverse difficulties and layout optimization.

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Extra info for Advances in Automatic Differentiation (Lecture Notes in Computational Science and Engineering)

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Our foundational certification of the forward mode AD is an extension of relational Hoare logic calculus since the assertions for the input code are augmented for the AD transformed code. 6 Conclusions and Future Work We have presented an approach to ensuring trust in the AD transformation framework. It is based on the proof-carrying code paradigm: an AD tool must provide a machine checkable certificate for an AD generated code, which can be checked by an AD user in polynomial time in the size of the certificate by using a simple and easy to certify program.

The inverse function f (t) is obtained as a Laguerre expansion: f (t) = eσ t ∞ ∑ ck e−bt Lk (2bt), k=0 ck = Φ (k) (0) k! (2) 46 Salvatore Cuomo, Luisa D’Amore, Mariarosaria Rizzardi, and Almerico Murli where Lk (2bt) is the Laguerre polynomial of degree k, σ > σ0 and b are parameters. The ck values are McLaurin’s coefficients of the function Φ obtained from F.

It is based on the proof-carrying code paradigm: an AD tool must provide a machine checkable certificate for an AD generated code, which can be checked by an AD user in polynomial time in the size of the certificate by using a simple and easy to certify program. We then focused on the foundational aspects of providing 32 Emmanuel M. Tadjouddine such a proof. We have shown that the most important data flow analysis performed by most AD tools (activity analysis), simple code transformations or AD canonicalizations, and the actual semantics augmentation performed by forward mode AD can be certified using a Hoare-style calculus.

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Advances in Automatic Differentiation (Lecture Notes in Computational Science and Engineering) by Christian H. Bischof, H. Martin Bücker, Paul Hovland, Uwe Naumann, Jean Utke


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