Zobrazeno 1 - 10
of 139
pro vyhledávání: '"Roy E. Welsch"'
Autor:
Marie-Laure Charpignon, Bella Vakulenko-Lagun, Bang Zheng, Colin Magdamo, Bowen Su, Kyle Evans, Steve Rodriguez, Artem Sokolov, Sarah Boswell, Yi-Han Sheu, Melek Somai, Lefkos Middleton, Bradley T. Hyman, Rebecca A. Betensky, Stan N. Finkelstein, Roy E. Welsch, Ioanna Tzoulaki, Deborah Blacker, Sudeshna Das, Mark W. Albers
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-17 (2022)
Previous observational studies of the diabetes drugs metformin vs. sulfonylureas have yielded mixed results about whether metformin reduces the risk of dementia, relative to the sulfonylureas. Here, the authors apply a novel competing risks approach
Externí odkaz:
https://doaj.org/article/6c6653ae33484933bc4f68d1094c553c
Publikováno v:
Education Sciences, Vol 13, Iss 2, p 187 (2023)
Video conferencing has enabled synchronous communication in a classroom and created multi-sensory content to stimulate learners. Artificial intelligence involves complex equations that are better taught using a constructive pedagogy where students ex
Externí odkaz:
https://doaj.org/article/2f626dc90aea4fc586ff2ffe3007f7ff
Publikováno v:
IEEE Access, Vol 8, Pp 91265-91275 (2020)
The imbalanced classification problem has become greatest issue in many fields, especially in fraud detection. In fraud detection, the transaction datasets available for training are extremely imbalanced, with fraudulent transaction logs considerably
Externí odkaz:
https://doaj.org/article/7bc0e6fad5f4467087ec4e33e9a3a7ec
Publikováno v:
Sensors, Vol 21, Iss 23, p 7847 (2021)
It is found that nodes in Delay Tolerant Networks (DTN) exhibit stable social attributes similar to those of people. In this paper, an adaptive routing algorithm based on Relation Tree (AR-RT) for DTN is proposed. Each node constructs its own Relatio
Externí odkaz:
https://doaj.org/article/47c4ad9871b14b1a942911acb80bbff8
Publikováno v:
NeuroImage: Clinical, Vol 25, Iss , Pp - (2020)
Functional modules in the human brain support its drive for specialization whereas brain hubs act as focal points for information integration. Brain hubs are brain regions that have a large number of both within and between module connections. We arg
Externí odkaz:
https://doaj.org/article/fa5de3af78654747ab9abf6b5fdccca9
Autor:
Roy E. Welsch, Xinfeng Zhou
Publikováno v:
Revstat Statistical Journal, Vol 5, Iss 1 (2007)
Many strategies for asset allocation involve the computation of the expected value and the covariance matrix of the returns of financial instruments. How much of each instrument to own is determined by an attempt to minimize risk — the variance of
Externí odkaz:
https://doaj.org/article/23bb73bede09412faf49cd44c6474085
Publikováno v:
Information Sciences. 611:18-29
Publikováno v:
Neurocomputing. 489:429-440
Publikováno v:
Neurocomputing. 465:228-237
Video engagement is important in online advertisements where there is no physical interaction with the consumer. Engagement can be directly measured as the number of seconds after which a consumer skips an advertisement. In this paper, we propose a m
Publikováno v:
ICC 2022 - IEEE International Conference on Communications.