924 resultados para Catalogs, Subject.
Automatic classification of scientific records using the German Subject Heading Authority File (SWD)
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The following paper deals with an automatic text classification method which does not require training documents. For this method the German Subject Heading Authority File (SWD), provided by the linked data service of the German National Library is used. Recently the SWD was enriched with notations of the Dewey Decimal Classification (DDC). In consequence it became possible to utilize the subject headings as textual representations for the notations of the DDC. Basically, we we derive the classification of a text from the classification of the words in the text given by the thesaurus. The method was tested by classifying 3826 OAI-Records from 7 different repositories. Mean reciprocal rank and recall were chosen as evaluation measure. Direct comparison to a machine learning method has shown that this method is definitely competitive. Thus we can conclude that the enriched version of the SWD provides high quality information with a broad coverage for classification of German scientific articles.
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Thesis (Ph. D.)--University of Washington, 2005.
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This paper employs the Lyapunov direct method for the stability analysis of fractional order linear systems subject to input saturation. A new stability condition based on saturation function is adopted for estimating the domain of attraction via ellipsoid approach. To further improve this estimation, the auxiliary feedback is also supported by the concept of stability region. The advantages of the proposed method are twofold: (1) it is straightforward to handle the problem both in analysis and design because of using Lyapunov method, (2) the estimation leads to less conservative results. A numerical example illustrates the feasibility of the proposed method.
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Contient : « Receuil de ce qui c'est passé au Parlement touchant les thèzes de Mr Gabriel de Villeneufve, bachelier en théologie, et frère Laurens Desplantes, Bernardin, en l'année 1663 »
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Signed by George Sullivan and thirty-three other Federalist members.
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March 23, 1808. Printed by order of the House of Representatives.
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13th Cong., 3d sess. House. Doc. no. 12.
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20th Congress, 2nd session. House Doc. no.3.
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The material is a printed record of two dispatches sent by Sir Peregrine Maitland, Lieutenant Governor of Upper Canada to secretary of state for the colonies, the first in 1827 to Earl Bathurst, the second in 1828 to Right Hon. W. Huskisson. The dispatches concern funding for the canal as well as an introduction of William Hamilton Merritt as managing agent of the Welland Canal Company. It was the intention of the Welland Canal Company to send Mr. Merritt to England to gain further assistance from the government and private investors.
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March 23, 1808. Printed by order of the House of Representatives.
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13th Cong., 3d sess. House. Doc. no. 12. October 27, 1814. Laid before the House by the Chairman of the Committee and ordered to be printed.