نتایج جستجو برای: random forest

تعداد نتایج: 374258  

2011
John Perez-Garcia

Forest resources represent many competing uses in society. The allocation of forest resources depends primarily on the society's value for each use. The problem with allocating forest resources among its different uses lies in differences in societal values across the globe for a single use, across uses and even within political boundaries. These differences in values held by societies across t...

Journal: :Remote Sensing 2017
Siheng Wang Lifu Zhang Changping Huang Na Qiao

Remote sensing of high-latitude forests phenology is essential for understanding the global carbon cycle and the response of vegetation to climate change. The normalized difference vegetation index (NDVI) has long been used to study boreal evergreen needleleaf forests (ENF) and deciduous broadleaf forests. However, the NDVI-based growing season is generally reported to be longer than that based...

Journal: :Social Networks 2016
Eric Giannella Claude S. Fischer

We apply Random Forests to detailed survey data of social relations in order to derive an inductive typology of egocentric networks. Beginning with over 40 descriptors of 1050 northern California respondents’ networks, we combine 21 of these into seven dimensions, the extent to which those networks display: (1) interaction with nonkin, (2) proximity to kin, (3) overall involvement with kin (inc...

2012
Douglas Cenzer Rebecca Weber

We investigate the -randomness of unions and intersections of random sets under various notions of randomness corresponding to di erent probability measures. For example, the union of two relatively MartinL of random sets is not Martin-L of random but is random with respect to the Bernoulli measure 3 4 under which any number belongs to the set with probability 3 4 . Conversely, any 3 4 random...

Journal: :Int. J. Applied Earth Observation and Geoinformation 2013
Clement Adjorlolo Onisimo Mutanga Moses Azong Cho Riyad Ismail

13 In this paper, a user-defined inter-band correlation filter function was used to resample 14 hyperspectral data and thereby mitigate the problem of multicollinearity in classification 15 analysis. The proposed resampling technique convolves the spectral dependence information 16 between a chosen band-centre and its shorter and longer wavelength neighbours. Weighting 17 threshold of inter-ban...

2016
Marjolein de Vries Pieter Spronck

In our research, we aim to predict attributes of human players based on observations of their gameplay. If such predictions can be made with sufficient accuracy, games can use them to automatically adapt to the player’s needs. In previous research, however, no conventional classification techniques have been able to achieve accuracies of sufficient height for this purpose. In the present paper,...

Journal: :Discrete Mathematics 2002
Gregory L. McColm

We use Ehrenfeucht-type games to prove that Monadic Second Order logic admits labelled zero-one laws for random free trees, generating the complete almost sure theory. Our method will be to dissect random trees to get a picture of what almost all random free trees look like. We will use elementary (second moment) methods to obtain probability results. Abstract Key words: random labelled trees, ...

2017
Byoung Chul Ko Deok-Yeon Kim Ji-Hoon Jung Jae-Yeal Nam

2016
Pierre-Edouard Honnet Philip N. Garner

We are interested in emphasis for text to speech synthesis. In speech to speech translation, emphasising the correct words is important to convey the underlying meaning of a message. In this paper, we propose to use a generalised command-response (CR) model of intonation to generate emphasis in synthetic speech. We first analyse the differences in the model parameters between emphasised words i...

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