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Edge Postprocessing - A Comparative Study

E. R. Hancock, J. Kittler
1989 Procedings of the Alvey Vision Conference 1989  
The use of contextual information is a vital ingredient in the successful postprocessing of edge information.  ...  The available contextual information exists in the form of measurements provided by the gradient-vectors in pixel neighbourhoods and knowledge of acceptable edge structure which is expressed symbolically  ...  On the basis of this analysis, we select some algorithms for experimental comparison with the relaxation approaches; this demonstrates some of the performance advantages of the relaxation methods.  ... 
doi:10.5244/c.3.42 dblp:conf/bmvc/HancockK89 fatcat:nbvjsqk7brep3ke2gws3b22pam

An Analysis of Reinforcement Learning for Malaria Control [article]

Ndivhuwo Makondo, Arinze Lawrence Folarin, Simphiwe Nhlahla Zitha, Sekou Lionel Remy
2021 arXiv   pre-print
The problem has been formulated as multi-armed bandits, contextual bandits and a Markov Decision Process in isolation.  ...  In this work, we formally study the formulation of Malaria control and present a comprehensive analysis of several formulations used in the literature.  ...  Discrete actions Some algorithms analyzed here assume a discrete action space. One solution is to discretize each dimension, d, of the action space.  ... 
arXiv:2107.08988v1 fatcat:4n7bpmlc2bdh7nwaqxlkwttbcq

Local and Contextual Controlled Fourth Order Partial Differential Equations for Noise Removal

Xianghua Tan
2012 Procedia Engineering  
In this paper, we propose a local and contextual controlled (LCC) fourth order PDE method for noise removal.  ...  In our method, two discontinuity measures are incorporated into a LCC fourth order PDE, where the joint use of the two discontinuity measures leads to a complementary effect for edge preservation.  ...  Comparison of different methods on "Barbara" image for image denoising.  ... 
doi:10.1016/j.proeng.2012.01.246 fatcat:frx5b75av5cknop4fhklaw6cje

Developing a Spatial-Temporal Contextual and Semantic Trajectory Clustering Framework [article]

Ivens Portugal, Paulo Alencar, Donald Cowan
2017 arXiv   pre-print
, the structure of space and time as well as the contextual and semantic trajectory properties.  ...  Trajectory analysis methods based on clustering techniques heavily often rely on a similarity definition to properly provide insights.  ...  , and a comparison of small, point to point relationships to improve the overall trajectory comparison.  ... 
arXiv:1712.03900v1 fatcat:ezz7gy5w6bafvdvp4fjvcut6te

COBE: Contextualized Object Embeddings from Narrated Instructional Video [article]

Gedas Bertasius, Lorenzo Torresani
2020 arXiv   pre-print
On the other hand, contextual cues (e.g., the presence of a knife, a cutting board, a strainer or a pan) are often strongly indicative of how the object appears in the scene.  ...  We leverage the semantic and compositional structure of language by training a visual detector to predict a contextualized word embedding of the object and its associated narration.  ...  Comparing COBE to a Discrete Detector To the best of our knowledge, there are no prior published methods that we can directly include in our comparisons for the contextualized object detection task.  ... 
arXiv:2007.07306v2 fatcat:5jue4bytinhhnel2cafk5ydpxy

Service Recommendation Model based on Rating Matrix and Context-Embedded LSTM

Zhao Chenyang, Wang Junling
2019 International Journal of Performability Engineering  
In this model, for a given user, based on different rating contexts, the rating matrix is firstly improved to have embedded contextual information, and then a sequence of service vectors is obtained from  ...  However, most of the existing works do not make full use of contextual information when acquiring latent preference features of users.  ...  ) in University of Henan Province (No. 17IRTSTHN011).  ... 
doi:10.23940/ijpe.19.09.p17.24322441 fatcat:fg5uf6abvjejlcynpy7zetv5sm

Sparse associative memory based on contextual code learning for disambiguating word senses [article]

Max Raphael Sobroza, Tales Marra, Deok-Hee Kim-Dufor, Claude Berrou
2019 arXiv   pre-print
Sense Disambiguation (WSD), a challenging problem in the field of Natural Language Understanding (NLU).  ...  case of WSD.  ...  Discrete activations of contextual codes are human readable.  ... 
arXiv:1911.06415v1 fatcat:ke5tob7t2nfydmlbjdql75no5e

Pavlovian conditioning to contexts that precede the place where shock occurs as measured by freezing and activity suppression in mice

Lynn J. Hammond
1995 Animal Learning and Behavior  
control could be operant, Pavlovian, or some combination of both.  ...  In discrete stimulus conditioning, it has been repeatedly demonstrated (see, e.g., Kehoe, 1982) that conditioning to the more distal of serially presented conditioned stimuli (CSs) can take place.  ...  some set of contextual stimuli.  ... 
doi:10.3758/bf03198932 fatcat:xwne45p5nreo7lwt7dvzd2rcry

A Novel HMM-Based TTS System using Both Continuous HMMS and Discrete HMMS

Jian Yu, Meng Zhang, Jianhua Tao, Xia Wang
2007 2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07  
To resolve the two problems, the paper presents a new HTS framework using both continuous HMMs and discrete HMMs.  ...  Experimental results show that the using of both continuous HMMs and discrete HMMs significantly improves the voice quality of synthesized speech.  ...  The work was supported by the National Natural Science Foundation of China (No. 60575032) and the 863 Program (No. 2006AA01Z138)  ... 
doi:10.1109/icassp.2007.367011 dblp:conf/icassp/YuZTW07 fatcat:vlkiok3b2zajjkme2zljj5z65i

Toward more accurate contextualization of the CEO effect on firm performance

Donald C. Hambrick, Timothy J. Quigley
2013 Strategic Management Journal  
We do this by examining the CEO effects in subsamples of low-, medium-, and high-discretion industries.  ...  We introduce multiple refinements to the standard method for assessing CEO effects on performance, variance partitioning methodology, more accurately contextualizing CEOs' contributions.  ...  ACKNOWLEDGMENTS We are grateful for feedback on earlier versions of this paper provided by Craig Crossland, Vilmos Misangyi, Srikanth Paruchuri, and Andrew Ward.  ... 
doi:10.1002/smj.2108 fatcat:2orrh3uboredjn37qoghk67o4i

The Effect of Contextual Interference on Acquisition and Learning Badminton Skills among Children aged from 10 to 12

Kimiya Sadri, Hassan Mohommadzadeh, Mostafa Khani
2013 Annals of Applied Sport Science  
The authors carefully suggest that elementary school physical education teachers should use blocked practice methods for badminton practice to help children build a suitable motor skills scheme and encourage  ...  them to repeat the desired skills because of the motivational feedback of blocked practice as a result of greater success in practice sessions.  ...  One of the planning methods of the practice variability is a phenomenon called "Contextual interference."  ... 
doaj:cd7ff16c64e64aefac159da55684213b fatcat:2tkvkp7usndwhkh3piralg56fe

Computational methods in number theory, Part I

1984 Discrete Applied Mathematics  
Voorhoeve: Factorization algorithms of exponential order. C. Pomerance: Analysis and comparison of some integer factoring algorithms. H. J. .I.  ...  Models of non- contextual hidden-variable theories; exceptional states. Local contextual hidden-variable theories; Bell's inequalities. References.  ... 
doi:10.1016/0166-218x(84)90119-7 fatcat:2nvaf7k6xbhetnqpnhqkxob4xe

Computational methods in number theory, Part II

1984 Discrete Applied Mathematics  
Voorhoeve: Factorization algorithms of exponential order. C. Pomerance: Analysis and comparison of some integer factoring algorithms. H. J. .I.  ...  Models of non- contextual hidden-variable theories; exceptional states. Local contextual hidden-variable theories; Bell's inequalities. References.  ... 
doi:10.1016/0166-218x(84)90120-3 fatcat:yozkfg7ba5h27aak5msdkjfzue

The Müller-Lyer contrast illusion: A computational approach

Gordon M. Redding, Georgia D. Winson, Richard O. Temple
1993 Perception & Psychophysics  
When a temporal delay is interposed between the contextual elements (wings) and the focal element (central axis) of the Miiller-Lyer figures, the usual assimilation illusion changes to an illusion of contrast  ...  Presentation time for the preceding contextual wings on the order of 1 sec or more was needed to produce contrast effects in judgments of the following focal axis (Experiment 3) and, given sufficient presentation  ...  Method The method employed in the first two experiments was based on Jordan and UhIarik's (1986) Experiment 1, but with a manipulated dark interval between contextual and focal stimuli instead of a constant  ... 
doi:10.3758/bf03211775 pmid:8255715 fatcat:uqqa7e6kgjeyjgqfhhzqbsgyta

The influence of context on distinct facial expressions of disgust

Peter J. Reschke, Eric A. Walle, Jennifer M. Knothe, Lukas D. Lopez
2018 Emotion  
These findings provide support that physical similarity within discrete categories of facial expressions is mutable and plays an important role in affective face perception.  ...  Face perception is susceptible to contextual influence and perceived physical similarities between emotion cues.  ...  These results suggest that face perception is susceptible to varying levels of contextual influence as a function of the structural variability within a given facial expression.  ... 
doi:10.1037/emo0000445 pmid:29888935 fatcat:h4cxr5smvrbffcjj6xlgdjnbqy
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