Results 71 to 80 of about 204,288 (176)

Cross-entropy and linguistic typology [PDF]

open access: yesProceedings of the Joint Conferences on New Methods in Language Processing and Computational Natural Language Learning - NeMLaP3/CoNLL '98, 1998
The idea of "familial relationships" among languages is well-established and accepted, although some controversies persist in a few specific instances. By painstakingly recording and identifying regularities and similarities and comparing these to the historical record, linguists have been able to produce a general "family tree" incorporating most ...
openaire   +1 more source

Alpha-Backpropagation Algorithm: Probability Estimation for One-Hot and Quasi-One-Hot Teachers

open access: yesIEEE Access
This study proposes theories and applications of probabilistic divergences to neural network training. This theory generalizes the cross-entropy method for backpropagation to the alpha-divergence method.
Yasuo Matsuyama
doaj   +1 more source

A Cross-Entropy-Based Hybrid Membrane Computing Method for Power System Unit Commitment Problems

open access: yesEnergies, 2019
The cross-entropy based hybrid membrane computing method is proposed in this paper to solve the power system unit commitment problem. The traditional unit commitment problem can be usually decomposed into a bi-level optimization problem including unit ...
Min Xie   +4 more
doaj   +1 more source

An Infrared Image Defect Detection Method for Steel Based on Regularized YOLO

open access: yesSensors
Steel surfaces often display intricate texture patterns that can resemble defects, posing a challenge in accurately identifying actual defects. Therefore, it is crucial to develop a highly robust defect detection model.
Yongqiang Zou, Yugang Fan
doaj   +1 more source

Deep Common Semantic Space Embedding for Sketch-Based 3D Model Retrieval

open access: yesEntropy, 2019
Sketch-based 3D model retrieval has become an important research topic in many applications, such as computer graphics and computer-aided design. Although sketches and 3D models have huge interdomain visual perception discrepancies, and sketches of the ...
Jing Bai, Mengjie Wang, Dexin Kong
doaj   +1 more source

Updating weighting matrices by cross-entropy [PDF]

open access: yesInvestigaciones Regionales - Journal of Regional Research, 2011
The classical approach to estimate spatial models lays on the choice of a spatial weights matrix that reflects the interactions among locations. The rule used to define this matrix is supposed to be the most similar to the «true» spatial relationships, but for the researcher is difficult to elucidate when the choice of this matrix is right and when is ...
openaire   +3 more sources

The Differentiable Cross-Entropy Method

open access: yes, 2019
We study the cross-entropy method (CEM) for the non-convex optimization of a continuous and parameterized objective function and introduce a differentiable variant that enables us to differentiate the output of CEM with respect to the objective function's parameters.
Amos, Brandon, Yarats, Denis
openaire   +2 more sources

MVarGOSIM: an MPS algorithm for characterizing complex structures with multiple variables

open access: yesFrontiers in Earth Science
Creating a highly accurate geological model at a large scale presents a considerable challenge, primarily due to constraints imposed by sparse data availability.
Yonghua Chen   +6 more
doaj   +1 more source

a cross-entropy based multiagent approach for multiclass activity chain modeling and simulation [PDF]

open access: yes
This paper attempts to model complex destination-chain, departure time and route choices based on activity plan implementation and proposes an arc-based cross entropy method for solving approximately the dynamic user equilibrium in multiagent-based ...
Jean-Patrick Lebacque, Tai-Yu Ma
core  

A minimum cross entropy model to generate disaggregated agricultural data at the local level [PDF]

open access: yes
This work presents an entropy approach to disaggregate agricultural data at a local level. It comprises two different steps. In a first one, an information prior at disaggregated level based on experts’ opinions, available cartography of land use and ...
Fragoso, Rui Manuel de Sousa   +2 more
core   +1 more source

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