Essays about: "Polytop"
Found 3 essays containing the word Polytop.
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1. The cosmological polytope of the complete bipartite graph K_{2,n}
University essay from KTH/Matematik (Avd.)Abstract : A cosmological polytope of an undirected connected graph is a lattice polytope which when the graph is interpreted as a feynman diagram can be used to calculate the contribution of that feynman diagram to the wavefunction of some cosmological models. This contribution can be calculated using the canonical form of the cosmological polytope, which can be computed by taking the sum of the canonical forms of the facets of a subdivision of the cosmological polytope. READ MORE
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2. Interventions for Identifying Context-Specific Causal Structures
University essay from KTH/Matematik (Avd.)Abstract : The problem of causal discovery is to learn the true causal relations among a system of random variables based on the available data. Learning the true causal structure of p variables can sometimes be difficult, but it is crucial in many fields of science, such as biology, sociology and artificial intelligence. READ MORE
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3. Graph properties of DAG associahedra and related polytopes
University essay from KTH/Matematik (Avd.)Abstract : A directed acyclic graph (DAG) can be thought of as encoding a set of conditional independence (CI) relations among random variables. Assuming we sample data from a probability distribution satisfying these CI relations, a fundamental problem in causal inference is to recover the edge-structure of the underlying DAG. READ MORE
