Abstract not found

Abstract not found

Abstract. Electricity theft is estimated to cost billions of dollars per year in many countries. To reduce electricity theft, electric utilities are leveraging data collected by the new Advanced Metering Infrastructure (AMI) and using data analytics to identify abnormal consumption trends and possible fraud. In this paper, we propose the first threat model for the use of data analytics in detecting electricity theft, and a new metric that leverages this threat model in order to evaluate and compare anomaly detectors. We use real data from an AMI system to validate our approach. 1

For thirty years a~fter its recognition as a new element platinum resisted all attpmpts to melt i t, .first in the early porcelain furnaces and later by means 0.f enormous burning glasses. Then in April 1782, just two hundred years ago, Antoine Laurent Lavoisier finally succeeded in bringing about its fusion on a small scale by using a blast of oxygen, the gaseous element discovered a few years earlier by Joseph Priestley. Lavoisier repeated his experiment three months later before a most distinguished audience at the Acad6mie Royale des Sciences in Paris. When European scientists first became aware of platinum in about 1750 they were much puzzled by its refractory nature and its apparent infusibility. Many attempts were made during the next twenty years to bring about its fusion, but unless it was alloyed or mixed with other metals of much lower melting point, such

Deliverable D2.3: 1 st Project Workshop Proceedings Abstract: This document contains the pre-proceedings of the SysSec 1 st Project Workshop, which took place in Amsterdam on July the 6th, colocated with the DIMVA 2011 conference.

Includes a chapter on Middle Dutch

Methods for computing triangular decompositions of polynomial systems can be classified into two groups. First, those computing a series of regular chains C1...,Ce such that for each irreducible component V of the variety of the input system, one of the Ci’s encodes a generic zero of V. An example is the algorithm of Michael Kalkbrener in his PhD thesis. Secondly are those methods computing a series of characteristic sets C1...,Cf (in the sense of Wu Wen Tsün) such that the variety of the input system is the union of the quasi-components of the Ci’s. A large variety of methods fall in the second family, in particular the one proposed in 1987 by Wu Wen Tsün in the 1st volume of the MM Research Preprints. Some methods belong to both families, this is the case for those proceeding in an incremental manner, that is, solving one equation after another. These latter methods rely on an operation for computing the intersection of an hypersurface and the quasi-component of a regular chain. This is an attractive operation since its input can be regarded as well-behaved geometrical objects. However, known algorithms (the one of Daniel Lazard in 1991 and the one of the second author in 2000) are quite involved and difficult to analyze. We revisit this intersection operation. We show that under “genericity assumptions” a simple algorithm can be stated and analyzed. In this context, it follows a classical projection-extension scheme. However, we shall see that the cost of the extension step can be neglected in comparison to that of the projection, which itself “essentially” reduces to a cost that all such intersection algorithms have to pay. In our experimental results, realized with the RegularChains library in Maple, our new intersection outperforms the one of the second author by several orders of magnitude on sufficiently

préparée au sein de l ’ European Synchrotron Radiation Facility

and other vernacular versions of

This dissertation explores attitudes toward literary form in fourteenth-century London’s trilingual culture and what it means to package science, politics, and social upheaval as literature. John Gower, the author of substantial poems in the three languages of his day treating topics as varied as clerical greed, aristocratic vice, rebellion, astronomy, and alchemy, writes at the intersection of literature, history, and science. Though called a historian and a compiler, Gower was foremost a poet whose political, cultural, and scientific writings grew out of his sense of poetry as a whole built from smaller pieces. Division was a force Gower feared, yet exploited. Though Gower critiques the broken political body, most famously in his treatment of the 1381 Rebellion but also throughout his many writings on politics, division could also signify marvelous design. To Gower, the music of the mythical harper Arion is not pure magic but a technical product of “mesure, ” a word signifying notes organized in a pattern. Similarly, the stars of the zodiac are divided into signs, and alchemy, though it transforms diverse metals, requires divided elements before it can unite them through