Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"directed information"”.
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Estimating directed information to infer causal relationships between neural spike trains and approximating discrete probability distributions with causal dependence trees
"This work examines an information theoretic quantity known as directed information, which measures statistically causal influences between processes. It is shown to be a general quantity, applicable to arbitrary probability distributions. It is interpreted in terms of prediction, communication …
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Identification and approximation of the structure of networks of stochastic processes
… the graphs, and techniques to estimate directed information, an information theoretic quantity that measures influence, from data. We demonstrate the utility of the methods by identifying influences between neurons in a primate as well as between news agencies and users in the Twitter …
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Causal structure of networks of stochastic processes
… influences between markets and causal flow of information between media sites. We study the statistical and functional dependencies in network of processes. Statistical dependencies can be encoded by directed information graphs (DIGs) and functional relationships using functional dependency …
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Addressing Indirect Functional Connectivity in Neuroscience via Graphical Information Theory: Causality and Coherence
… Our first model-free framework, graphical directed information (GDI), enables pairwise directed functional connections to be conditioned on substantially more processes, producing a more accurate graph of direct causal functional connectivity in the time domain. GDI correctly inferred the …
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Agent-based models to couple natural and human systems for watershed management analysis
… agents’ bounded rationality on their behavior. A directed information graph (DIG) algorithm is used to exploit the causal relationships between agents’ decisions (i.e., groundwater irrigation depth) and time-series of environmental, socio-economical and institutional variables, and a machine …
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Making Meaning Together: Information, Rumor, and Propaganda in British Literature of the First World War
… and John Buchan, this dissertation examines information as a category as it exists under conditions of modernity, and how the contours of and changes in definitions and understandings of modern information become more visible, and are likely accelerated by, the complex information challenges …
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Agoric computation: trust and cyber-physical systems
… agent technologies are, however, ill suited for information-based environments, making it difficult to formalise and implement multiagent systems based on inherently dynamical functional concepts such as trust and reliability, which present special challenges when scaling from small to large …
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Multiscale Views of Multi-agent Interactions in the Context Of Collective Behavior
… in larger scale, where we are interested in the information exchange in a group and how it enables the group to reach a common decision, and the other in a smaller scale, where we are focused in the presence and directionality in the information exchange in a pair of individuals. To understand …