113,789 research outputs found
Development of Integrative Bioinformatics Applications using Cloud Computing resources and Knowledge Organization Systems (KOS).
Use of semantic web abstractions, in particular of domain neural Knowledge Organization Systems (KOS), to manage distributed, cloud based, integrative bioinformatics infrastructure. This presentation derives from recent publication:

Almeida JS, Deus HF, Maass W. (2010) S3DB core: a framework for RDF generation and management in bioinformatics infrastructures. BMC Bioinformatics. 2010 Jul 20;11(1):387. [PMID 20646315].

These PowerPoint slides were presented at Semantic Web Applications and Tools for Life Sciences December 10th, 2010, Berlin, Germany (http://www.swat4ls.org/2010/progr.php), keynote 9-10 am
On the Intersection Property of Conditional Independence and its Application to Causal Discovery
This work investigates the intersection property of conditional independence.
It states that for random variables and we have that
independent of given and independent of given implies
independent of given . Under the assumption that the joint
distribution has a continuous density, we provide necessary and sufficient
conditions under which the intersection property holds. The result has direct
applications to causal inference: it leads to strictly weaker conditions under
which the graphical structure becomes identifiable from the joint distribution
of an additive noise model
On the sign-imbalance of partition shapes
Let the sign of a standard Young tableau be the sign of the permutation you
get by reading it row by row from left to right, like a book. A conjecture by
Richard Stanley says that the sum of the signs of all SYTs with n squares is
2^[n/2]. We present a stronger theorem with a purely combinatorial proof using
the Robinson-Schensted correspondence and a new concept called chess tableaux.
We also prove a sharpening of another conjecture by Stanley concerning
weighted sums of squares of sign-imbalances. The proof is built on a remarkably
simple relation between the sign of a permutation and the signs of its
RS-corresponding tableaux.Comment: 12 pages. Better presentatio
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