A DESCRIPTIVE PETROGRAPHY OF THE IGNEOUS ROCKS : INTRODUCTION, TEXTURES, CLASSIFICATIONS AND GLOSSARY/
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Subjects / keywords: JOHANNSEN, ALBERT; THE UNIVERSITY OF CHICAGO PRESS; 552.1 J65d2
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Influencia de las costras físicas y biológicas del suelo en el balance de agua en ecosistemas semiáridos
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E-book
In arid and semiarid areas, the interplant spaces are usually covered by physical and biological soil crusts. These crusts, though representing an almost negligible portion of the soil profile, have a number of crucial r...
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Material complementarioSubspace Mapping of Noisy Text Documents
Article
Article
Subspace mapping methods aim at projecting high-dimensional data into a subspace where a specific objective function is optimized. Such dimension reduction allows the removal of collinear and irrelevant variables for cre...
Idioma English
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Open AccessDiscriminação de fitofisionomias de floresta de várzea a partir do algoritmo Iterated Conditional Modes aplicado aos dados SAR/R99 (QUAD-POL/Banda L) Discrimination among flooded forest phytophysiognomies from Iterated Conditional Modes algorithm applied to SAR Data R99 (QUAD POL/L-Band)
Article
Article
Utilizando-se dados do sensor aerotransportado SAR R99, adquiridos na banda L (1,28 GHz) em amplitude e com quatro polarizações (HH, VV, HV e VH), avaliou-se a distinção de fitofisionomias de floresta de várzea exis...
LCC LCC:Science (General)Idioma English
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Open AccessSentiment analysis in microblogging: a practical implementation
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Text / resource
This paper presents a system that can take short messages relevant to a particular topic from a microblogging service such as Twitter or Facebook, analyze the messages for the sentiments they carry on, and classify them....
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