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.
Results
Showing 1 to 17 of 17 for “"commodity flow"”.
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An Integrated Interregional Input -Output and Transportation Network Model for Assessing Economic Impacts of Unexpected Events
A model of interregional commodity flows, incorporating regional input-output relationships, and the corresponding transportation network flows is formulated and implemented for assessing the economic impacts from an unexpected event. The Integrated Commodity Flow Model (ICFM) integrates a …
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Content Distribution in Overlay Multicast
… the high throughput challenge, using multi-commodity flow theory, we establish the theoretical foundation for multi-tree overlay multicast. Based on this foundation, we propose a series of algorithms, which can achieve maximum throughput for multiple sessions, while maintaining weighted …
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Intelligent Lane Utilisation to Improve Freight Transportation Mobility on Arterials
The increase in commodity flow and just-in-time pickup/delivery activities in urban areas have increased truck traffic on urban roadways, which raises safety and operational concerns. The governing agencies are planning to improve the efficiency by adopting the Intelligent Lane Utilisation (ILU) …
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Robust optimization for network-based resource allocation problems under uncertainty
… on the class of problems referred to as multi-commodity flow problems with time-windows. These problems are at the core of many network-based resource allocation problems. Inherent data uncertainty in the problem guarantees that deterministic optimal solutions are rarely, if ever, executed. Our …
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Combinatorial optimization problems with concave costs
… and a new heuristic for concave cost multi commodity flow. In the second part, we study several concave cost problems and the corresponding combinatorial optimization problems. We develop an algorithm design technique that yields a strongly polynomial primal-dual algorithm for a concave cost …
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Modeling of Distributed Naval Ship Systems using Architecture Flow Optimization
… they are logically connected to model the energy flow through a representative design and provide insight into sizing requirements of both system components and their connections using an Architecture Flow Optimization (AFO). This thesis presents a unique method and tool to optimize naval ship …
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Machine Learning Applications For Neurological Diseases
… In Chapter 4, I discuss an improved multi-commodity flow algorithm for omics data integration and highlight its utility for understanding drug effects in glioblastoma. Chapter 5 highlights how clustering and the Prize-Collecting Steiner Forest algorithm led to a better understanding of …
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"A Democracy of Goods": An Archaeology of Commodity Landscapes in Columbia, South Carolina, 1870-1930
<p>This dissertation examines the formation of commodity landscapes that manifested between 1870 and 1930 at the Mann-Simons site, a collection of commercial and domestic spaces in downtown Columbia, South Carolina, owned and operated by the same African American family from the mid-nineteenth …
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Algorithms for the analysis of protein interaction networks
… network. Our algorithm constructs a multi-commodity flow problem that expresses the constraints described by the data and finds a sparse solution to it.
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Trade and Spatial Economic Interdependence: U.S. Interregional Trade and Regional Economic Structure
… (1) the spatial pattern of the U.S. interstate commodity flows, (2) the role of interregional trade in the U.S. economy, and (3) spatial economic interdependence in the U.S. regional economy. The first analysis explores the spatial or geographical patterns of U.S. interstate commodity flows by …
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On-Demand Relay Communication Infrastructure for Base Station Connectivity
In public safety and homeland security, reliable communication among the command center (CC), first responders (FRs) and surveillance sensors is critical to real-time monitoring and control applications. Com- manders want to check measurements from all surveillance sensors in the field and respond …
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Graph-theoretic Identification of Dynamic Networks
… case could be determined via an optimal multi-commodity flow problem with additional commodity specific constraints. Finally, we consider the problem of designing controllers for networked systems in presence of topological uncertainties.We show that, in some cases, our results in …
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Extension of a random-utility-based multi regional input-output model and applications to Texas trade
… freight vehicle trips based on economic trade flows (and loading of these trips onto a congestible network); and the explicit consideration of labor and floorspace markets (with price response). The incorporation of domestic demands, based on Commodity Flow Survey (CFS) data (BEA 1997), …
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Understanding and modeling food flow networks across spatial scales
… in an increasingly global society, in which food commodity transfers enable production and consumption activities to be separated in space via complex supply chains. Here, we refer to the movement of food commodities from one location to another as ‘food flows’, reserving the term ‘food trade’ for …
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Machine learning and combinatorial methods for discrete optimization problems
… parallel machine scheduling problems and network flow problems, which have attracted sustained research in operations research and computer science for over half a century. In this thesis, we develop and implement algorithms for variants of these two important classes of problems. Scheduling …
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Scheduling and routing of service trucks and planning of resource replenishment locations for winter roadway maintenance
… (which determine the origin/destination of multi-commodity flow).