منابع مشابه
Classification and Regression Tree Method for Forecasting
Sentiment classification is a special task of text classification whose objective is to classify a text according to the sentimental polarities of opinions it contains e.g., favorable or unfavorable, positive or negative. This is especially a problem for the tweets sentiment analysis. Since the topics in Twitter are very diverse, it is impossible to train a universal classifier for all topics. ...
متن کاملImage Enhancement Based on a Nonlinear Multiscale Method Using Dual-Tree Complex Wavelet Transform
Absirac--This paper proposes a new nonlinear multiseale monslrmction method for image enhancement using dual-tree complex wavelet hansfona The enhanced image is obtained by succ&vely combining each coarser d e image with the corresponding nonlinearly modified iniersesle (detail) images. This image enhancement method reduces additive noise wbile presema the sharpnesc of the image. Simulation res...
متن کاملMultiscale Support Vector Regression Method On Spheres with Data Compression
In this manuscript, we investigate the multiscale support vector regression (SVR) method with data compression for approximation of functions on the unit sphere. The data are obtained at scattered sites on the sphere and may contain noise. The Vapnik ε-intensive loss function, which has been well-developed in learning theory, is introduced to obtain a local regularized approximation at each ste...
متن کاملA Hybrid Tree and Quantile Regression Method for Incident Duration
and Manuscript Text: 5137 39 Number of Tables and Figures: 9 (= 2250 words) 40
متن کاملA Novel Method for Building Regression Tree Models for QSAR Based on Artificial Ant Colony Systems
Among the multitude of learning algorithms that can be employed for deriving quantitative structure-activity relationships, regression trees have the advantage of being able to handle large data sets, dynamically perform the key feature selection, and yield readily interpretable models. A conventional method of building a regression tree model is recursive partitioning, a fast greedy algorithm ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Frontiers in Applied Mathematics and Statistics
سال: 2018
ISSN: 2297-4687
DOI: 10.3389/fams.2018.00063