Search

• Geometry-driven tensorization coupled with the tensor-train decomposition yields a hierarchical compression scheme. • A new streaming data compression scheme, in which batches of simulation data can be efficiently incorporated to a compressed representation as soon as they are generated. • Demonstration of high compression ratios (1 K-10 M fold reductions) of discrete element vehicle-over-soil simulation dataset. We propose a framework for discrete scientific data compression based on the tensor-train (TT) decomposition. Our approach is tailored to handle unstructured output data from discrete element method (DEM) simulations, demonstrating its effectiveness in compressing both raw (e.g. particle position and velocity) and derived (e.g. stress and strain) datasets. We show that geometry-driven "tensorization" coupled with the TT decomposition (known as quantized TT) yields a hierarchical compression scheme, achieving high compression ratios for key variables in these DEM datasets. [ABSTRACT FROM AUTHOR]

Abstract: Local economic development (LED) strategies are increasingly being recommended as an alternative or a complement to traditional development strategies. However, beyond a limited number of areas where ‘best practices’ have been identified, there has been little systematic monitoring of whether LED really works. This paper uses a purpose-built database of 898 municipalities in Mexico in order to assess, using a quantitative approach, whether the implementation of seven different components of LED – development plan, sustainability, entrepreneurship, capacity building, participation mechanisms, development links, and autonomy – has delivered greater human development across Mexican local governments. The results of the analysis indicate that municipalities engaging in LED during the last two decades have witnessed significant improvements in human development, relative to those which have overlooked LED strategies. The increase in human development has been greatest for those local authorities which have pursued capacity building, the establishment of additional development links and which have drafted a development plan. Greater independence from federal or state initiative has, by contrast, been detrimental for changes in human development at the local level. [Copyright &y& Elsevier]