نتایج جستجو برای: loss functions

تعداد نتایج: 911381  

2012
Sakrapee Paisitkriangkrai Chunhua Shen Anton van den Hengel

In this document we provide a complete derivation for multi-class boosting with group sparsity and a full explanation of admm algorithm presented in the main paper. 1 Multi-class boosting with group sparsity We first provide the derivation for multi-class logistic loss with 1,2-norm. We then show the difference between our boosting with 1,2-norm and 1,∞-norm. We then briefly discuss our group s...

2012
Yun Li Su-Yan Gao Songcan Chen

Recently, besides the performance, the stability (robustness, i.e., the variation in feature selection results due to small changes in the data set) of feature selection is received more attention. Ensemble feature selection where multiple feature selection outputs are combined to yield more robust results without sacrificing the performance is an effective method for stable feature selection. ...

Journal: :CoRR 2017
Théo Trouillon Maximilian Nickel

Embeddings of knowledge graphs have received significant attention due to their excellent performance for tasks like link prediction and entity resolution. In this short paper, we are providing a comparison of two state-of-the-art knowledge graph embeddings for which their equivalence has recently been established, i.e., COMPLEX and HOLE [Nickel, Rosasco, and Poggio, 2016; Trouillon et al., 201...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم انسانی 1390

iv abstract this study examined the linguistic behaviors of two iranian efl teachers each of them teaching learners of two similar proficiency levels, a beginner level and an intermediate level, to investigate the relationship between the learners proficiency levels and the amounts and purposes for l1 use by the two teachers. the study was carried out to investigate whether there were differe...

2015
Joel Veness Marcus Hutter Laurent Orseau Marc G. Bellemare

This paper revisits the problem of learning a k-CNF Boolean function from examples, for fixed k, in the context of online learning under the logarithmic loss. We give a Bayesian interpretation to one of Valiant’s classic PAC learning algorithms, which we then build upon to derive three efficient, online, probabilistic, supervised learning algorithms for predicting the output of an unknown k-CNF...

2015
Branislav Gerazov Pierre-Edouard Honnet Aleksandar Gjoreski Philip N. Garner

Intonation modelling is an integral part of text-to-speech systems from their very beginnings. This has led to the proliferation of various intonation models, each with its own relative strengths and weaknesses. Only a few of these intonation models are based on physiology, despite the advantage that such models are language independent. We propose a new intonation model inspired by the physiol...

1994
David B. Rosen

We present a new way to understand and characterize the choice of scoring, objective , or loss function for a model, machine, or expert estimating (i.e. predicting) the probabilities of events or outcomes (such as class membership). The ultimate value of a probability estimate lies in the actual payoo (utility) accruing to those who use this information to make a decision. We allow that we ofte...

2005
H. P. Uranus E. van Groesen

Using a finite-element mode solver, the modes of a commercial endlessly single-mode photonic crystal fiber (ESM-PCF) were investigated. Based on the loss discrimination between the dominant and the nearest higher order mode, we set-up a criterion for the single-modeness. Using that measure, we verified the single-modeness of the corresponding ESM-PCF and found that the endlessly single-modeness...

ژورنال: توانبخشی 2013

Objective: Since the written language is based on spoken language, hearing impairments may cause delays and defects in reading skills. This study is aimed to investigate reading problems in children with hearing loss and comparison of reading skills of fifth-grade elementary students’ reading skills suffering severe hearing loss. Materials & Methods: In this cross-sectional comparative study...

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