نتایج جستجو برای: boosting

تعداد نتایج: 14818  

1996
J. Ross Quinlan

Several empirical studies have connrmed that boosting class-iier-learning systems can lead to substantial improvements in predictive accuracy. This paper reports early experimental results from applying boosting to ffoil, a rst-order system that constructs deenitions of functional relations. Although the evidence is less convincing than that for propositional-level learning systems, it suggests...

2004
Zhi-Hua Zhou Dan Wei Gang Li Honghua Dai

In this paper, the impact of the size of the training set on the benefit from ensemble, i.e. the gains obtained by employing ensemble learning paradigms, is empirically studied. Experiments on Bagged/ Boosted J4.8 decision trees with/without pruning show that enlarging the training set tends to improve the benefit from Boosting but does not significantly impact the benefit from Bagging. This ph...

2008
Andreas Buja Yoav Freund

We thank the authors for writing a thought-provoking piece that may ruffle the feathers of recent orthodoxies in boosting. We also thank JMLR for publishing this article! Since the late 1990s, boosting has undergone the equivalent of a simultaneous X-ray, fMRI and PET exam, and the common view these days is that boosting is a kind of model fitting. As such, it is subjected to assumptions that a...

2001
Tapio Elomaa Matti Kääriäinen

Branching programs are a generalization of decision trees. From the viewpoint of boosting theory the former appear to be exponentially more eecient. However, earlier experience demonstrates that such results do not necessarily translate to practical success. In this paper we develop a practical version of Mansour and McAllester's 13] algorithm for branching program boosting. We test the algorit...

2007
Claudia Henry Richard Nock Frank Nielsen

In the past ten years, boosting has become a major field of machine learning and classification. This paper brings contributions to its theory and algorithms. We first unify a well-known top-down decision tree induction algorithm due to [Kearns and Mansour, 1999], and discrete AdaBoost [Freund and Schapire, 1997], as two versions of a same higher-level boosting algorithm. It may be used as the ...

2016
Jan Doutreloigne

This paper describes two methods for the reduction of the peak input current during the boosting of Dickson charge pumps. Both methods are implemented in the fully integrated Dickson charge pumps of a high-voltage display driver chip for smart-card applications. Experimental results reveal good correspondence with Spice simulations and show a reduction of the peak input current by a factor of 6...

2013
Alexey Natekin Alois Knoll

Gradient boosting machines are a family of powerful machine-learning techniques that have shown considerable success in a wide range of practical applications. They are highly customizable to the particular needs of the application, like being learned with respect to different loss functions. This article gives a tutorial introduction into the methodology of gradient boosting methods with a str...

2009
JAN DOUTRELOIGNE

This paper describes two methods for the reduction of the peak input current during the boosting of Dickson charge pumps. One of the methods is implemented in the fully integrated Dickson charge pumps of a high-voltage display driver chip for smart-card applications. Experimental results reveal good correspondence with Spice simulations and show a reduction of the peak input current by a factor...

2017
Marin Kukovacec Juraj Malenica Ivan Mrsic Antonio Sajatovic Domagoj Alagic Jan Snajder

This paper describes our system for humor ranking in tweets within the SemEval 2017 Task 6: #HashtagWars (6A and 6B). For both subtasks, we use an off-the-shelf gradient boosting model built on a rich set of features, handcrafted to provide the model with the external knowledge needed to better predict the humor in the text. The features capture various cultural references and specific humor pa...

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