In order to alleviate the huge demand for annotated datasets for different tasks, many recent natural language processing datasets have adopted automated pipelines for fast-tracking usable data. However, model training with such datasets poses a chal
lenge because popular optimization objectives are not robust to label noise induced in the annotation generation process. Several noise-robust losses have been proposed and evaluated on tasks in computer vision, but they generally use a single dataset-wise hyperparamter to control the strength of noise resistance. This work proposes novel instance-adaptive training frameworks to change single dataset-wise hyperparameters of noise resistance in such losses to be instance-wise. Such instance-wise noise resistance hyperparameters are predicted by special instance-level label quality predictors, which are trained along with the main classification models. Experiments on noisy and corrupted NLP datasets show that proposed instance-adaptive training frameworks help increase the noise-robustness provided by such losses, promoting the use of the frameworks and associated losses in NLP models trained with noisy data.
This paper presents a study to reduction of heavy crude oil viscosity by
heating, where we select the best of temperature for all types instead of
constant temperature, whatever composition and viscosity of crude oil.
204 samples were collected from various body samples
during the year 2016. These 204 samples distributed as
follows: 133 from urine , 37 swabs of wounds and burns,
10 swabs from the ear and pharynx, 12 from feces, 8
from CSF, 4 from blood. This s
tudy distinctly showed that
gram negative bacilli were the most isolates 136 (67%)
while 68 isolates (33%) were gram positive bacteria .
E. coli dominated (39.68%) of the total gram negative
bacilli.
This study distinctly showed an increase in the ratio of
E. coli resistance to one or more types of antibiotics , we
found that E. coli resistance to all antibiotics except
specific and expensive antibiotics, and we found that its
complete resistance to the second ,third and fourth
generation of cephalosporins , resistance to specific and
antibiotics such as Imipenem.
The aim of this study is to determine the percentage of loss in yield of some durum wheat varieties against wheat leaf rust, and to identify whether the slow rusting has a positive effect in limiting yield loss. The study was carried out in the field
s of experiments at Faculty of Agriculture, Aleppo University, Aleppo, Syria, 2015, included six durum wheat varieties (Cham1, Cham5, Douma1, Cham9, Beltagy and Massine).
Using high strength concrete made a big step in designing and
constructing reinforced concrete structures. In this research, shear
resistance of high strength concrete beams with average resistance
of (65Mpa) and without shear reinforcement was ca
lculated by
making Experimental tests, also we studied the effect of cross
section shape on shear resistance, and measured the deflection in the
middle of the beams then we compared these results with the
mathematical results and with results from other researchers, finally
we developed a relationship to determine shear capacity in high
strength concrete T beams.
In this research the effects of various parameters on flux and fouling in
Dead -End Flat Sheet Ultrafiltration (DEFS) were studied using saline
solutions contaminated by humic acid as fouling material.
The change is really going on in all the surrounding
environment, and it makes developments in all environment:
economic, technology, cultural and others, which leads us to
the continuous adaptation with change circumstances to
keep up with all-n
ew condition, in order to stay in competitive
state or at least maintain a presence, but this change may be
a nuisance for those whom affected, and it forces them to
face and respond it, due to personal or general reasons, so it
is necessary to know 'what is the change, its causes, method
of implementation, the objectives, how of the team respond to
it, and see if the construction projects has special or unique
features and if there is differences between them.
A questionnaire conducted to find out these facts and try to
infer the characteristics of public and private construction
projects and compare between them, and offer suggestions
and solutions for managers to learn how to deal with the
circumstances and workers within the team, in order to in
develop the project.
The study was conducted to evaluate the efficiency of Pseudomonas chlororaphis MA342,
Serratia plymuthica HRO-C48K, Bacillus subtillis B2g, B. subtillis FZB27 to induce systemic
resistance in Tomato plants against Cucumber mosaic virus (CMV) under
greenhouse conditions.
Tomato seeds submerged in suspension of Pseudomonas chlororaphis MA342, Serratia
plymuthica HRO-C48, Bacillus subtillis B2g and B. subtillis FZB27 9×109cfu . plants emerged
from these seed were inoculated with CMV after 10 days of planting. The time of beginning
symptoms was recorded, Disease incidence, disease severity, area under disease progress curve
AUDPC, progress of infection disease degrees during the study period were calculated using
virtual symptoms . pyroxidas enzyme activity was determined, Some growth parameters such as
Plant height, foliage fresh weight, root fresh weight , foliage dry weight, root dry weight were
observed after 30 DAI. Results of this study showed that seed treatment with Pseudomonas
chlororaphis MA342, Serratia .plymuthica HRO-C48, Bacillus subtillis B2g, B. subtillis FZB27
significantly decreased the diseases incidence on treated and inculated plants which ranged
between 40% - 66.66% ,compared with un treated and inculated control 93.33% Without the
presence of significant differences between the bacterial treatments. significantly decreased the
diseases severity on treated plants which ranged between 45.53 %- 62.2% compared with inculated
and un treated control 88.86% .Without the presence of significant differences between the
bacterial treatments. Peroxidas activity on treated plants increased by Compared with untreated
plants. Seed treatments with bacteria significantly increased the plant growth. The plant height ,
fresh and dry weight of foliage, fresh and dry weight of root on treated plants were significantly
higher than those of inculated and un-treated plants according to LSD 5%.where bacteria reduced
the rate of stunting and the rate of decline mild and dry weight of foliage and mild and dry weight
of the root occurring due to infection with the Cucumber mosaic virus (CMV).
This research aims to study the effect of adding Zinc Borate and
Aluminum Hydroxide as flame retardants to Low Density
polyethylene.
Specimens have been prepared through pouring them in a mold.
Results have revealed that replacement of certain am
ount of
Aluminum Hydroxide with Zinc Borate could lead to improving the
resistance of flame spread in Low Density polyethylene.
these improvements were basically due to further contribution of
Zinc Borate to the physical barrier mechanism of Aluminum
Hydroxide in both gas and solid phases.
Syrian Steeps has formed the most important ecosystem in
Syria ,in particular on both side , biodiversity vegetation and
wildlife. Despite of this fact, the structure of communities have
been changed by many effects ,thus Syrian steeps has lost it
s
balance .This study aimed to analysis the impact of topography
on characteristics of communities , We found 38% of variance
return back to elevation and landscape ,specially between the
low sites ( often Depression , valleys and Terraces ) and the
high sites (often summit of mountains and plains).
