284 Hits in 5.4 sec

Group Size and Conformity in Charitable Giving: Evidence from a Donation-Based Crowdfunding Platform in Japan

Shusaku Sasaki
2017 Social Science Research Network  
The main variables are the modal amount among the preceding five donations and their appearance along the sequence.  ...  Using data for 9,989 donations and exploring the model propounded by Smith et al. (2015), we construct variables to explain information a donor sees on the webpage.  ...  This result implies that subsequent donors could recognize that many previous donors contributed the same amount, when multiple modal donations appear not only at no interval but also at some intervals  ... 
doi:10.2139/ssrn.2972403 fatcat:66oyyaqyerbsbmgz24vxk7ct7e

DeepNAG: Deep Non-Adversarial Gesture Generation [article]

Mehran Maghoumi, Eugene M. Taranta II, Joseph J. LaViola Jr
2020 arXiv   pre-print
Through evaluations, we compare the utility of DeepGAN and DeepNAG against two alternative techniques for training five recognizers using data augmentation over six datasets.  ...  We find that DeepNAG outperforms DeepGAN in accuracy, training time (up to 17x faster), and realism, thereby opening the door to a new line of research in generator network design and training for gesture  ...  Jackknife [42] is a 1-nearest neighbor DTW-based template matching recognizer. Data generation methods.  ... 
arXiv:2011.09149v1 fatcat:jhaqzmowtnd7jifx3dr5sppcau

Adaptive Decision Fusion for Audio-Visual Speech Recognition [chapter]

Jong-Seok Lee, Cheol Hoon
2008 Speech Recognition  
Since it is practically impossible to use the data of all possible noise conditions, we use only speech data for a few sampled conditions.  ...  To increase reliability of the experiments, we use the jackknife method; the data of 56 speakers are divided into four groups and we repeat the experiment with the data of the three groups (42 speakers  ...  How to reference In order to correctly reference this scholarly work, feel free to copy and paste the following: Jong-Seok Lee and Cheol Hoon Park (2008) .  ... 
doi:10.5772/6364 fatcat:545qoyk4qja7ll5icxwlpq3ary

Estimating terrestrial biodiversity through extrapolation

Robert K. Colwell, Jonathan A. Coddington, David L. Hawksworth
1994 Philosophical Transactions of the Royal Society of London. Biological Sciences  
in fewer samples than it should, especially at the edge of its range, assuming a modal distribution.  ...  In this case, two small samples might underestimate complementarity by yielding the same few common species, missing many rare species that would differentiate the sites in a larger sample.)  ... 
doi:10.1098/rstb.1994.0091 pmid:7972351 fatcat:r7v6ccgz6ra3hpbfeoabyy5m2a

Fallacies of Agreement

Theophanis Tsandilas
2018 ACM Transactions on Computer-Human Interaction  
First, we show that raw agreement rates disregard agreement that occurs by chance and do not reliably capture how participants distinguish among referents.  ...  We also demonstrate how to use common resampling techniques to support statistical inference with interval estimates.  ...  I would also like to thank Gilles Bailly, Edwin Chan, Audrey Girouard, Thammathip Piumsomboon, Martin Weigel, and their supervisors or co-authors for sharing their data with us and allowing us to reanalyze  ... 
doi:10.1145/3182168 fatcat:kx7urnwrdrebdobkd6dhqtlwyy

Combining Biometric Evidence for Person Authentication [chapter]

J. Bigun, J. Fierrez-Aguilar, J. Ortega-Garcia, J. Gonzalez-Rodriguez
2005 Lecture Notes in Computer Science  
Humans are excellent experts in person recognition and yet they do not perform excessively well in recognizing others only based on one modality such as single facial image.  ...  In particular, fingerprint and speech based systems will serve as illustration. A signal adaptive supervisor based on the input biometric signal quality is evaluated.  ...  It is reliably observed in a number of studies that negative bias in ability to recognize faces of another racial group versus own racial group exists [4, 5, 6] .  ... 
doi:10.1007/11493648_1 fatcat:4fge63alsjcp3oqoy5ccvpw6cm

DNA-DNA Hybridization Evidence for Subfamily Structure among Hummingbirds

Robert Bleiweiss, Juan Carlos Matheus
1994 The AUK: A Quarterly Journal of Ornithology  
Analyses of complete matrices of ATto and ATmoa, statistics among eight hummingbird genera and a swift generated the same fully resolved topology, which bootstrapping and jackknifing analyses supported  ...  The data are consistent with monophyly for the traditional hermit (Phaethornithinae) and nonhermit (Trochilinae) subfamilies, and with placement of the hermitlike Tooth-billed Hummingbird (Androdon aequatorialis  ...  Dickerman's program BOOTTEMP, which samples the original matrix with replacement.  ... 
doi:10.2307/4088500 fatcat:7cfspkztmjfzjmxkcusvrmbdb4

Data exploration in phylogenetic inference: scientific, heuristic, or neither

Taran Grant, Arnold G Kluge
2003 Cladistics  
congruence with a "known" phylogeny.  ...  [T]he cult of impressive technicalities or the cult of precision may get the better of us, and interfere with our search for clarity, simplicity, and truth [Popper, 1983, p. 60.  ...  a an Faivovich, Darrel Frost, Gonzalo Giribet, Maureen Kearney, Jyrki Muona, Diego Pol, Leo Smith, Mark Siddall, Ward Wheeler, and two anonymous reviewers.  ... 
doi:10.1111/j.1096-0031.2003.tb00311.x pmid:34905832 fatcat:vxway5dbqjahbpbcylbrwn6cxm

Data exploration in phylogenetic inference: scientific, heuristic, or neither

T Grant
2003 Cladistics  
congruence with a "known" phylogeny.  ...  [T]he cult of impressive technicalities or the cult of precision may get the better of us, and interfere with our search for clarity, simplicity, and truth [Popper, 1983, p. 60].  ...  a an Faivovich, Darrel Frost, Gonzalo Giribet, Maureen Kearney, Jyrki Muona, Diego Pol, Leo Smith, Mark Siddall, Ward Wheeler, and two anonymous reviewers.  ... 
doi:10.1016/s0748-3007(03)00074-4 fatcat:zouqfmenvnecpadgqxlobpykl4

A comparative analysis of terrestrial arthropod assemblages from a relict forest unveils historical extinctions and colonization differences between two oceanic islands

Mário Boieiro, Thomas J. Matthews, Carla Rego, Luis Crespo, Carlos A. S. Aguiar, Pedro Cardoso, François Rigal, Isamberto Silva, Fernando Pereira, Paulo A. V. Borges, Artur R. M. Serrano, Franck Courchamp
2018 PLoS ONE  
Citation for published version (Harvard): Matthews, T 2018, 'A comparative analysis of terrestrial arthropod assemblages from a relict forest unveils historical extinctions and colonization differences  ...  Isabel Amorim, Israel Silva, Pedro Silva and Sérvio Ribeiro were a great help during fieldwork while Carlos Palma and Catarina Castro assisted in laboratory work.  ...  Acknowledgments We thank Madeira Natural Park for logistic support and permissions for the collection of specimens.  ... 
doi:10.1371/journal.pone.0195492 pmid:29694360 pmcid:PMC5918893 fatcat:pjiakvsnhbch7ft3kqbm6xgosu

Characterizing and Comparing Phylogenies from their Laplacian Spectrum

Eric Lewitus, Helene Morlon
2015 Systematic Biology  
Phylogenetic trees are central to many areas of biology, ranging from population genetics and epidemiology to microbiology, ecology, and macroevolution.  ...  Here we present a graph-theoretical approach that provides such a framework. We show how to construct the spectral density profile of a phylogenetic tree from its Laplacian graph.  ...  ACKNOWLEDGMENTS We would like to thank Mike Steel, two anonymous reviewers, and Olivier Gascuel for their counsel, as well Julien Clavel, Jonathan Drury, Nancy Irwin, Marc Manceau, and Olivier Missa for  ... 
doi:10.1093/sysbio/syv116 pmid:26658901 fatcat:7c5q2vqijfdvnjqh5ikdpomqhu

Systematic Review of Functional MRI Applications for Psychiatric Disease Subtyping

Lucas Miranda, Riya Paul, Benno Pütz, Nikolaos Koutsouleris, Bertram Müller-Myhsok
2021 Frontiers in Psychiatry  
However, to date, this subfield is at an incipient exploratory stage, and all retrieved studies were mostly proofs of principle where further validation and increased sample sizes are craved for.  ...  Even with technology progressing and costs decreasing, this might incentivize the search for more accessible, clinically ready functional proxies in the future.  ...  Lastly, in addition to questionnaires and more traditional clinical datasets, a data modality that gained momentum over the last few years is digitomics (electronic health records, mobile sensor data)  ... 
doi:10.3389/fpsyt.2021.665536 pmid:34744805 pmcid:PMC8569315 fatcat:jmcxqcdzjba5bhvcpcrj2zvv3i

The use of Artificial Neural Networks to classify primate vocalizations: a pilot study on black lemurs

Luca Pozzi, Marco Gamba, Cristina Giacoma
2009 American Journal of Primatology  
Our results show that ANNs were able to recognize all seven vocal categories previously described (92.5-95.6%) and perform better than either statistical analysis (76.1-88.4%).  ...  We designed an automatic procedure to extract both spectral and temporal features from signals, and performed a comparative analysis between a supervised Multilayer Perceptron and two statistical approaches  ...  ACKNOWLEDGMENTS We are grateful to Sergio Castellano for his help in MATLAB analyses and for advice and support throughout the preparation of this article.  ... 
doi:10.1002/ajp.20786 pmid:20034021 fatcat:npabi54q2jcwpp25lhclsugca4

Fingers gestures early-recognition with a unified framework for RGB or depth camera

Sotiris Manitsaris, Apostolos Tsagaris, Alina Glushkova, Fabien Moutarde, Frédéric Bevilacqua
2016 Proceedings of the 3rd International Symposium on Movement and Computing - MOCO '16  
It aims to recognize finger motion patterns for hand with a semiclosed palm while fingers are simultaneously moving.  ...  Communication patterns that are used in the everyday life of human beings can be a basis to develop novel natural communication modalities between humans and computers.  ...  ACKNOWLEDGMENTS A part of the research project is implemented within the framework of the Action «Supporting Postdoctoral Researchers» of the Operational Program "Education and Lifelong Learning" (Action's  ... 
doi:10.1145/2948910.2948947 dblp:conf/moco/ManitsarisTGMB16 fatcat:5uzrqb4albbw5gwbjsypk3sria

An interview with Ivette Gomes

Isabel Fraga Alves, Miguel de Carvalho
2015 Extremes  
Acknowledgements We would like to thank Antónia Amaral-Turkman and Manuela Neves for sharing with us materials, memories, and for many other interesting revelations.  ...  But many other senior people recognize what we can now call a Portuguese 'school of extremes.' Jef Teugels and Ivette, SPE Conference, Serra da Estrela, 2006.  ...  And some resampling methodologies like the jackknife and the bootstrap are very effective for bias-reduction purposes and in the choice of optimal sample fractions, among other topics in the field of extremes  ... 
doi:10.1007/s10687-015-0223-3 fatcat:dlxqq6ge4reu5n2cdgdzbkggqa
« Previous Showing results 1 — 15 out of 284 results