243,626 Hits in 3.1 sec

Distributed Representations of Expertise

Fangqiu Han, Shulong Tan, Huan Sun, Mudhakar Srivatsa, Deng Cai, Xifeng Yan
2016 Proceedings of the 2016 SIAM International Conference on Data Mining  
We embed all historical task data in a lower dimension space and learn vector representations of expertise based on both solved and unsolved tasks.  ...  The learnt vector representations can be used to compare expertise in a large organization and optimize expert allocation.  ...  In this paper, we developed two models to learn distributed representations of expertise which can convey both aspects.  ... 
doi:10.1137/1.9781611974348.60 dblp:conf/sdm/HanTSSCY16 fatcat:teqolc7tubhshjp4flmuibfigm

Computational approaches to the development of perceptual expertise

Thomas J. Palmeri, Alan C-N. Wong, Isabel Gauthier
2004 Trends in Cognitive Sciences  
representations [11] .  ...  Perceptual expertise might tune perceptual representations; perception might not just passively describe the world, but change according to experience and goals [8 -10].  ...  The authors wish to thank members of the Perceptual Expertise Network (funded by JSMF) for helpful discussions.  ... 
doi:10.1016/j.tics.2004.06.001 pmid:15335465 fatcat:3jo52eaj5na37pj7s4p4hbelui

Expert programmers have fine-tuned cortical representations of source code [article]

Yoshiharu Ikutani, Takatomi Kubo, Satoshi Nishida, Hideaki Hata, Kenichi Matsumoto, Kazushi Ikeda, Shinji Nishimoto
2020 bioRxiv   pre-print
Our results suggest that programming expertise is built up on fine-tuned cortical representations specialized for the domain of programming.  ...  We here address this issue by associating the cortical representation of source code with individual programming expertise using a data-driven decoding approach.  ...  programming expertise and domainspecific cortical representations in these brain areas widely distributed in the frontal, parietal, and temporal cortices.  ... 
doi:10.1101/2020.01.28.923953 fatcat:6ua7hwim7vblfam3o6da56o3aq

Inferring Expertise in Knowledge and Prediction Ranking Tasks

Michael D. Lee, Mark Steyvers, Mindy de Young, Brent Miller
2012 Topics in Cognitive Science  
We apply a cognitive modeling approach to the problem of measuring expertise on rank ordering problems.  ...  We show that our model-based measure of expertise outperforms self-report measures, taken both before and after completing the ordering of items, in terms of correlation with the actual accuracy of the  ...  This article is based on a paper presented at the 2011 Annual Conference of the Cognitive Science Society.  ... 
doi:10.1111/j.1756-8765.2011.01175.x pmid:22253187 fatcat:zapkpmpevrbrhikkyp66lg22ua

Expert programmers have fine-tuned cortical representations of source code

Yoshiharu Ikutani, Takatomi Kubo, Satoshi Nishida, Hideaki Hata, Kenichi Matsumoto, Kazushi Ikeda, Shinji Nishimoto
2020 eNeuro  
This study provides evidence that outstanding performances of expert programmers are associated with domain-specific cortical representations in these widely distributed brain areas.  ...  Our results suggest that programming expertise is built on fine-tuned cortical representations specialized for the domain of programming.  ...  The combination of recent decoding/encoding approaches and distributed representations of source code may enable us to build a computational model of program comprehension that connects semantic features  ... 
doi:10.1523/eneuro.0405-20.2020 fatcat:c6tntnw35bajdjeyvcsnwx7cpm

Active Learning for Crowdsourcing Using Knowledge Transfer

Meng Fang, Jie Yin, Dacheng Tao
This paper studies the active learning problem in crowdsourcing settings, where multiple imperfect annotators with varying levels of expertise are available for labeling the data in a given task.  ...  To overcome data scarcity we propose a new probabilistic model that transfers knowledge from abundant unlabeled data in auxiliary domains to help estimate labelers' expertise.  ...  The proposed model explicitly represents the expertise of labelers as a distribution over a higher-level representation learned by sparse coding, and unlabeled data are exploited from a related domain  ... 
doi:10.1609/aaai.v28i1.8993 fatcat:2ynw4ua6izboniesuebtbfsuw4

Dynamic Partition Models [article]

Marc Goessling, Yali Amit
2017 arXiv   pre-print
We present a new approach for learning compact and intuitive distributed representations with binary encoding.  ...  Rather than summing up expert votes as in products of experts, we employ for each variable the opinion of the most reliable expert.  ...  A popular model family with latent binary representation are products of experts (Hinton, 2002) . In such a model the individual distributions P k are multiplied together and renormalized.  ... 
arXiv:1702.04832v1 fatcat:2utzaq3a4zegphpccair3di544

Collaborative Recommendation of Temporally-Discounted Tag-Based Expertise for Community Question Answering [chapter]

Gianni Costa, Riccardo Ortale
2020 Lecture Notes in Computer Science  
These representations are inferred by means of Gibbs sampling under a new Bayesian probabilistic model of discounted user expertise and asking-answering behavior.  ...  Instead, the discounted expertise under not yet replied tags is predicted via a latent-factor representation of both answerers and tags.  ...  Otherwise, if the expertise of u under t is an unknown entry of E, then E ut is suitably predicted by resorting to the latent-factor representations of u and t under ENGAGE.  ... 
doi:10.1007/978-3-030-47426-3_4 fatcat:aiyfg6bjnbczpj6gc2iyz2i4se

The Effect Level of Expertise on the Didactic Functionalities for the Teaching Gestuality of Athletic Activities: The Shot Put

Houda Dammak, Liwa Masmoudi, Salma Abedelmalek, Khouloud Aloui, Nizar Souissi
2016 OALib  
The aim of this study is to investigate the effect of expertise on didactic functionality of the teaching gesture of two teachers with different expertise and similar experience.  ...  Indeed, the expert teacher uses more representational gestures in comparison with the polyvalent that uses the manipulations in favour of other actions.  ...  Distribution of gestural categories of teachers.  ... 
doi:10.4236/oalib.1103052 fatcat:cszzcxbt2zdwnlpnle2a3yanaa

Social representations of wine and culture: A comparison between France and New Zealand

Marion Mouret, Grégory Lo Monaco, Isabel Urdapilleta, Wendy V. Parr
2013 Food Quality and Preference  
The aim of the present study was to investigate social representations of wine as a function of wine expertise and culture.  ...  The objective of this research was to study the influence of expertise on social representations of wine from French and New Zealanders.  ...  Table 1 1 Participants' age distribution across culture and level of expertise. Level of expertise Experts M.Mouret et al. / Food Quality and Preference 30 (2013) 102-107  ... 
doi:10.1016/j.foodqual.2013.04.014 fatcat:d2xc2calhvewldfciprxuu7jl4

A Cognitive Model for Aggregating People's Rankings

Michael D. Lee, Mark Steyvers, Brent Miller, Linda Chao
2014 PLoS ONE  
We develop a cognitive modeling approach, motivated by classic theories of knowledge representation and judgment from psychology, for combining people's rankings of items.  ...  We implement the cognitive model as a Bayesian graphical model, and use computational sampling to infer an aggregate ranking and measures of the individual expertise.  ...  Acknowledgments We thank Pernille Hemmer and Mindy de Young for their assistance in data collection, and Tom Wallsten and an anonymous reviewer for helpful comments on an earlier version of this paper.  ... 
doi:10.1371/journal.pone.0096431 pmid:24816733 pmcid:PMC4015936 fatcat:5fjmq5gqavardjvhrhzcv272ie

Similar researcher search in academic environments

Sujatha Das Gollapalli, Prasenjit Mitra, C. Lee Giles
2012 Proceedings of the 12th ACM/IEEE-CS joint conference on Digital Libraries - JCDL '12  
In response to a 'researcher name' query, the goal of a researcher recommender system is to output the list of researchers that have similar expertise as that of the queried researcher.  ...  We propose models for computing similarity between researchers based on expertise profiles extracted from their publications and academic homepages.  ...  KL Divergence (KLD): In this representation, a researcher profile is represented in terms of a probability distribution.  ... 
doi:10.1145/2232817.2232849 dblp:conf/jcdl/GollapalliMG12 fatcat:opljsvgag5hgfkwukfirut4ze4

How Visual Expertise Changes Representational Geometry: A Behavioral and Neural Perspective

Stefanie Duyck, Farah Martens, Chiu-Yueh Chen, Hans Op de Beeck
2021 Journal of Cognitive Neuroscience  
This study illustrates the potential of an analysis of representational geometry to understand to what extent expertise changes neural information processing.  ...  We present a multivariate fMRI study focusing upon the representational similarity among objects of expertise at the subordinate level.  ...  Results indicated the presence of distributed expertise-related neural changes for both domains of expertise, with more widespread effects for ornithology compared to mineralogy.  ... 
doi:10.1162/jocn_a_01778 pmid:34748633 fatcat:si7xrm67nneb7ef6vdy2qakqka

Expertise visualization: An implementation and study based on cognitive fit theory

Zan Huang, Hsinchun Chen, Fei Guo, Jennifer J. Xu, Soushan Wu, Wun-Hwa Chen
2006 Decision Support Systems  
These systems have successfully applied many information technologies developed for document management to support collection, processing, and distribution of expertise information.  ...  In this paper, we report a study on the potential of applying visualization techniques to support more effective and efficient exploration of the expertise information space.  ...  field distribution patterns in the table.  ... 
doi:10.1016/j.dss.2006.01.006 fatcat:6z62jt5tu5buzceybjzuvalr7m

Interaction Design, mass communication and the challenge of distributed expertise [chapter]

2013 Design and Ethics  
Interaction design, mass communication and the challenge of distributed expertise.  ...  If it is true that we are evolving from an era of representation to one of productivity, from expert provision to 'distributed expertise,' what does this mean for interaction design?  ...  If the era of semiotic and political representation is indeed giving way to a new paradigm based on mass creativity, consumer productivity and distributed expertise, then the design professions, and those  ... 
doi:10.4324/9780203123973-16 fatcat:suokszpqtzhzxic6l74y6pyb6e
« Previous Showing results 1 — 15 out of 243,626 results