9 research outputs found
Genotypic and Environmental Effects on the Volatile Chemotype of Valeriana jatamansi Jones
Valeriana jatamansi Jones is an aromatic medicinal herb and important alternative to V. officinalis, which is utilized for medicinal purposes in China and India and also as spices in India. Bioactive ingredients of V. jatamansi vary in different regions. However, no information is currently available on influence of genotype and environmental factors in the volatile compounds, especially when germplasms and planting locations need to be selected. Based on the results of SNP and volatile constituents from GC-MS analysis, this study found various genotypes and chemotypes of V. jatamansi for wild plants from seven regions in China and common-garden samples; correlations between genotype and chemotype were revealed for the plants. Two distinct populations (PX, FY) were distinguishable from five others (GJ, YL, SY, DD, DY) according to their genotypes and volatile profiles, the consistency of which was observed showing that genotype could significantly influence chemotype. Wild populations and common-garden samples were also separated in their volatile profiles, demonstrating that environmental factors strongly affected their chemotypes. Compounds contributing to the discrimination were identified as discriminatory compounds. This investigation has explored and provided essential information concerning the correlation between genotype and chemotype as well as environmental factors and chemotype of V. jatamansi in some regions of China. Feasible plantation and conservation strategies of V. jatamansi could be further explored based on these results
Towards Robust SDRTV-to-HDRTV via Dual Inverse Degradation Network
Recently, the transformation of standard dynamic range TV (SDRTV) to high
dynamic range TV (HDRTV) is in high demand due to the scarcity of HDRTV
content. However, the conversion of SDRTV to HDRTV often amplifies the existing
coding artifacts in SDRTV which deteriorate the visual quality of the output.
In this study, we propose a dual inverse degradation SDRTV-to-HDRTV network
DIDNet to address the issue of coding artifact restoration in converted HDRTV,
which has not been previously studied. Specifically, we propose a
temporal-spatial feature alignment module and dual modulation convolution to
remove coding artifacts and enhance color restoration ability. Furthermore, a
wavelet attention module is proposed to improve SDRTV features in the frequency
domain. An auxiliary loss is introduced to decouple the learning process for
effectively restoring from dual degradation. The proposed method outperforms
the current state-of-the-art method in terms of quantitative results, visual
quality, and inference times, thus enhancing the performance of the
SDRTV-to-HDRTV method in real-world scenarios.Comment: 10 page
ALLSH: Active Learning Guided by Local Sensitivity and Hardness
Active learning, which effectively collects informative unlabeled data for
annotation, reduces the demand for labeled data. In this work, we propose to
retrieve unlabeled samples with a local sensitivity and hardness-aware
acquisition function. The proposed method generates data copies through local
perturbations and selects data points whose predictive likelihoods diverge the
most from their copies. We further empower our acquisition function by
injecting the select-worst case perturbation. Our method achieves consistent
gains over the commonly used active learning strategies in various
classification tasks. Furthermore, we observe consistent improvements over the
baselines on the study of prompt selection in prompt-based few-shot learning.
These experiments demonstrate that our acquisition guided by local sensitivity
and hardness can be effective and beneficial for many NLP tasks.Comment: NAACL 2022 (finding); Our code is publicly available at
https://github.com/szhang42/alls
Vichy-season : artistique et mondain ["puis" (ancien Réveil de Vichy) : littéraire, artistique et mondain]
03 juillet 19021902/07/03.Appartient à l’ensemble documentaire : Auvergn
Table_2_Genotypic and Environmental Effects on the Volatile Chemotype of Valeriana jatamansi Jones.xls
<p>Valeriana jatamansi Jones is an aromatic medicinal herb and important alternative to V. officinalis, which is utilized for medicinal purposes in China and India and also as spices in India. Bioactive ingredients of V. jatamansi vary in different regions. However, no information is currently available on influence of genotype and environmental factors in the volatile compounds, especially when germplasms and planting locations need to be selected. Based on the results of SNP and volatile constituents from GC-MS analysis, this study found various genotypes and chemotypes of V. jatamansi for wild plants from seven regions in China and common-garden samples; correlations between genotype and chemotype were revealed for the plants. Two distinct populations (PX, FY) were distinguishable from five others (GJ, YL, SY, DD, DY) according to their genotypes and volatile profiles, the consistency of which was observed showing that genotype could significantly influence chemotype. Wild populations and common-garden samples were also separated in their volatile profiles, demonstrating that environmental factors strongly affected their chemotypes. Compounds contributing to the discrimination were identified as discriminatory compounds. This investigation has explored and provided essential information concerning the correlation between genotype and chemotype as well as environmental factors and chemotype of V. jatamansi in some regions of China. Feasible plantation and conservation strategies of V. jatamansi could be further explored based on these results.</p
Image_1_Genotypic and Environmental Effects on the Volatile Chemotype of Valeriana jatamansi Jones.JPEG
<p>Valeriana jatamansi Jones is an aromatic medicinal herb and important alternative to V. officinalis, which is utilized for medicinal purposes in China and India and also as spices in India. Bioactive ingredients of V. jatamansi vary in different regions. However, no information is currently available on influence of genotype and environmental factors in the volatile compounds, especially when germplasms and planting locations need to be selected. Based on the results of SNP and volatile constituents from GC-MS analysis, this study found various genotypes and chemotypes of V. jatamansi for wild plants from seven regions in China and common-garden samples; correlations between genotype and chemotype were revealed for the plants. Two distinct populations (PX, FY) were distinguishable from five others (GJ, YL, SY, DD, DY) according to their genotypes and volatile profiles, the consistency of which was observed showing that genotype could significantly influence chemotype. Wild populations and common-garden samples were also separated in their volatile profiles, demonstrating that environmental factors strongly affected their chemotypes. Compounds contributing to the discrimination were identified as discriminatory compounds. This investigation has explored and provided essential information concerning the correlation between genotype and chemotype as well as environmental factors and chemotype of V. jatamansi in some regions of China. Feasible plantation and conservation strategies of V. jatamansi could be further explored based on these results.</p