Results 1 to 10 of about 137,972 (308)

Regularization Paths for Generalized Linear Models via Coordinate Descent

open access: yesJournal of Statistical Software, 2010
We develop fast algorithms for estimation of generalized linear models with convex penalties. The models include linear regression, two-class logistic regression, and multi- nomial regression problems while the penalties include ℓ1 (the lasso), ℓ2 (ridge
Jerome Friedman   +2 more
doaj   +1 more source

Biofilm formation is correlated with low nutrient and simulated microgravity conditions in a Burkholderia isolate from the ISS water processor assembly

open access: yesBiofilm, 2023
The International Space Station (ISS) Water Processor Assembly (WPA) experiences intermittent dormancy in the WPA wastewater tank during water recycling events which promotes biofilm formation within the system.
Angie Diaz   +6 more
doaj   +1 more source

The reciprocal Bayesian LASSO [PDF]

open access: yesStatistics in Medicine, 2021
AbstractA reciprocal LASSO (rLASSO) regularization employs a decreasing penalty function as opposed to conventional penalization approaches that use increasing penalties on the coefficients, leading to stronger parsimony and superior model selection relative to traditional shrinkage methods.
Himel Mallick   +3 more
openaire   +4 more sources

Spatial Characterization of Microbial Communities on Multi-Species Leafy Greens Grown Simultaneously in the Vegetable Production Systems on the International Space Station

open access: yesLife, 2021
The establishment of steady-state continuous crop production during long-term deep space missions is critical for providing consistent nutritional and psychological benefits for the crew, potentially improving their health and performance.
Mary E. Hummerick   +13 more
doaj   +1 more source

Persistence of Escherichia coli in the microbiomes of red Romaine lettuce (Lactuca sativa cv. ‘Outredgeous’) and mizuna mustard (Brassica rapa var. japonica) - does seed sanitization matter?

open access: yesBMC Microbiology, 2021
Background Seed sanitization via chemical processes removes/reduces microbes from the external surfaces of the seed and thereby could have an impact on the plants’ health or productivity.
Anirudha R. Dixit   +11 more
doaj   +1 more source

Simulated galactic cosmic ray exposure activates dose-dependent DNA repair response and down regulates glucosinolate pathways in arabidopsis seedlings

open access: yesFrontiers in Plant Science, 2023
Outside the protection of Earth’s magnetic field, organisms are constantly exposed to space radiation consisting of energetic protons and other heavier charged particles.
Anirudha R. Dixit   +8 more
doaj   +1 more source

Hi-LASSO: High-Dimensional LASSO [PDF]

open access: yesIEEE Access, 2019
High-throughput genomic technologies are leading to a paradigm shift in research of computational biology. Computational analysis with high-dimensional data and its interpretation are essential for the understanding of complex biological systems. Most biological data (e.g., gene expression and DNA sequence data) are high-dimensional, but consist of ...
Youngsoon Kim   +4 more
openaire   +2 more sources

Discriminative Lasso [PDF]

open access: yesCognitive Computation, 2016
Lasso-type variable selection has been demonstrated to be effective in handling high-dimensional data. From the biological perspective, traditional Lasso-type models are capable of learning which stimuli are valuable while ignoring the many that are not, and thus perform feature selection.
Zhihong Zhang 0001   +6 more
openaire   +2 more sources

Povýběrová Inference: Lasso & Skupinové Lasso

open access: yes, 2017
The lasso is a popular tool that can be used for variable selection and esti- mation, however, classical statistical inference cannot be applied for its estimates. In this thesis the classical and the group lasso is described together with effici- ent algorithms for the solution.
Bouř, Vojtěch
openaire   +2 more sources

Microbiological and Nutritional Analysis of Lettuce Crops Grown on the International Space Station

open access: yesFrontiers in Plant Science, 2020
The ability to grow safe, fresh food to supplement packaged foods of astronauts in space has been an important goal for NASA. Food crops grown in space experience different environmental conditions than plants grown on Earth (e.g., reduced gravity ...
Christina L. M. Khodadad   +8 more
doaj   +1 more source

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