Vassar College Digital Library

Vassar Scholarship

Vassar Scholarship, the institutional repository formerly known as Digital Window, reflects the research and scholarly output of the Vassar College community.  It provides access to a variety of collections, including senior theses and projects across a wide range of disciplines.

Armstrong's Axioms and Navigation Strategies

Publication Date
2018-February-02
Document Type
Department or Program
Document Type
Abstract

The paper investigates navigability with imperfect information. It shows that the properties of navigability with perfect recall are exactly those captured by Armstrong's axioms from database theory. If the assumption of perfect recall is omitted, then Armstrong's transitivity axiom is...

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Landscape Consequences of Pennsylvanian Natural Gas Development: Fragmentation effects of unconventional gas development upon the future of Pennsylvania's old growth forests.

Publication Date
2013-January-01
Document Type
Authors
Document Type
Abstract

Pennsylvania's forests share a long and deep history that has been affected throughout the years by a number of external factors. The most recent threat to forest health is the development of unconventional shale gas production from the Marcellus Shale...

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