Reader Variance in ROC Studies—Generalizability to Reader Population at High and Low Performance Levels

2006 ◽  
Vol 13 (8) ◽  
pp. 1004-1010 ◽  
Author(s):  
David Gur ◽  
Andriy I. Bandos ◽  
Amy H. Klym ◽  
Howard E. Rockette
Keyword(s):  
Performance Levels ◽  
Low Performance

scholarly journals Discrete Stochastic Dynamics of Income Inequality in Education: An Applied Stochastic Model and a Case Study

2007 ◽  
Vol 2007 ◽  
pp. 1-15 ◽  
Author(s):  
Ahmet Kara
Keyword(s):  
Higher Education ◽  
Income Inequality ◽  
Stochastic Model ◽  
Stochastic Dynamics ◽  
Subsidy Policy ◽  
Performance Levels ◽  
Turkish Higher Education ◽  
Inequality In Education ◽  
Low Performance

This paper develops a model for the discrete stochastic dynamics of economic inequality-induced outcomes in education and demonstrates, in the context of the Turkish higher education sector, that higher incomes lead to higher performance levels; and hence income inequality matters. The paper formulates a stochastic subsidy policy that could help the sector to escape the low performance equilibria, and that could stabilize the sector at relatively higher performance levels.

scholarly journals Responses to song playback vary with the vocal performance of both signal senders and receivers

2013 ◽  
Vol 280 (1768) ◽  
pp. 20131401 ◽  
Author(s):  
Dana L. Moseley ◽  
David C. Lahti ◽  
Jeffrey Podos
Keyword(s):  
High Performance ◽  
Animal Species ◽  
Vocal Performance ◽  
Performance Levels ◽  
Mating Signals ◽  
Two Factors ◽  
Melospiza Georgiana ◽  
Low Performance ◽  
Aggressive Signals ◽  
Song Playback

Mating signals of many animal species are difficult to produce and thus should indicate signaler quality. Growing evidence suggests that receivers modulate their behaviour in response to signals with varying performance levels, although little is known about if and how responses are affected by receiver attributes. To explore this topic we conducted two experiments with swamp sparrows, Melospiza georgiana , in which we challenged territorial males with playback of songs with trill rates that were natural, digitally reduced, or digitally elevated (control-, low- and high-performance stimuli, respectively). In our first experiment, we found that males responded more aggressively to control songs than to low-performance stimuli, that low-performance stimuli with the most severe trill-rate reductions elicited the weakest aggressive responses, and that the subjects' own trill rates predicted aggressive responses. In our second experiment, we found that male responses to high-performance stimuli varied significantly, in ways predicted by two factors: the degree to which we had elevated stimulus performance levels of high-performance stimuli, and subjects' own vocal performance levels. Specifically, males were less aggressive towards stimuli for which we had elevated performance levels to higher degrees, and subject males with higher vocal performances themselves responded more aggressively. These findings together offer a novel illustration of how responses to aggressive signals may rely not just on signal attributes, but also on attributes of responding animals themselves.

ANALISIS KINERJA PABRIK TEH HITAM “PAHIT MADU”

2013 ◽  
Vol 13 (3) ◽  
Author(s):  
Djawardi Djawardi ◽  
Yustiar Gunawan
Keyword(s):  
Heat Exchanger ◽  
Production Process ◽  
Black Tea ◽  
Production Equipment ◽  
Standard Means ◽  
Fluid Bed ◽  
Calculation Results ◽  
Low Performance ◽  
Equipment Utilization

The business unit's black tea processing of Perkebunan Nusantara suffered a loss of approximately Rp.60 billion. This is caused by the failure to achieve the quality and quantity of production which has been targeted by the management. Black tea processing factory "Pahit Madu" is required to improve the performance of the production process. To improve the production of black tea starts from improved production equipment through improved equipment utilization. One method ofmeasuring the effectiveness of using an apparatus is Overall EquipmentEffectiveness (OEE). OEE calculation results show that black tea factory "Pahit Madu" for four (4) years under the standard. Means, the effectiveness of utilization of equipment in the factory black tea "Pahit Madu" was still very low. This was shown by the low performance equipment in the milling unit, drying unit and sortation unit. Toimprove the performance of the plant should begin by increasing the Cutting Tearing Curling (CTC) machine in milling stations, machines Fluid Bed Dryer (FBD) and Heat Exchanger (HE) at the drying stations, and Winnower machines at the sortation stations.

Deep Learning for text in limted data settings

2020 ◽  
Author(s):  
Pathikkumar Patel ◽  
Bhargav Lad ◽  
Jinan Fiaidhi
Keyword(s):  
Machine Learning ◽  
Time Series ◽  
Deep Learning ◽  
Sentiment Analysis ◽  
Transfer Learning ◽  
Text Classification ◽  
State Of The Art ◽  
Time Series Forecasting ◽  
Text Data ◽  
Performance Levels

During the last few years, RNN models have been extensively used and they have proven to be better for sequence and text data. RNNs have achieved state-of-the-art performance levels in several applications such as text classification, sequence to sequence modelling and time series forecasting. In this article we will review different Machine Learning and Deep Learning based approaches for text data and look at the results obtained from these methods. This work also explores the use of transfer learning in NLP and how it affects the performance of models on a specific application of sentiment analysis.

Sarcopenia is an actual problem in chronic kidney disease of the 5d stage

2020 ◽  
Vol 24 (1) ◽  
pp. 60-66
Author(s):  
I. V. Lavrishcheva ◽  
A. Sh. Rumyantsev ◽  
M. V. Zakharov ◽  
N. N. Kulaeva ◽  
V. M. Somova
Keyword(s):  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Muscle Mass ◽  
Chronic Kidney Disease Stage ◽  
Age Groups ◽  
Disease Stage ◽  
Actual Problem ◽  
European Working ◽  
Low Performance ◽  
6 Minute Walk Test

BACKGROUND. The lack of data on the epidemiology of presarcopenia/sarcopenia leads to an underestimation of the role of this condition in the structure of morbidity and mortality of haemodialysis patients in theRussian Federation. THE AIM: to study the epidemiological aspects of presarcopenia /sarcopenia in patients with chronic kidney disease stage 5d. PATIENTS AND METHODS. This study comprised 317 patients receiving programmed bicarbonate haemodialysis for 8.2 ± 5.1 years, among them 171 women and 146 men, the average age was 57.1 ± 11.3 years. The assessment of the presence of sarcopenia was performed using the method recommended by the European Working Group on Sarcopenia in Older People. RESULTS. The prevalence of presarcopenia was 0.7 % and sarcopenia 29.6 %. The incidence of skeletal muscle mass deficiency according to muscle mass index (IMM) was 30.3 %, 48.7 % showed a decrease in muscle strength according to dynamometry, and low performance of skeletal muscles according to 6 minute walk test was determined in 42.8 %. Sarcopenia patients were significantly characterized by lower body mass index, as well as higher body fat mass values. The duration of haemodialysis (χ2 = 22.376, p = 0.0001) and the patient's age (χ2 = 10.545 p = 0.014) were an independent risk factors for the development of sarcopenia. CONCLUSION. Sarcopenia is recorded more frequently in hemodialysis patients than presarcopenia. Its prevalence increases among patients of older age groups and with a hemodialysis duration of more than 5 years. The age and experience of dialysis make their independent contribution to the development of this syndrome.

Understanding the Persistent Low Performance of African Agriculture

2006 ◽  
Author(s):  
Sylvain Dessy ◽  
Jacques Ewoudou ◽  
Isabelle Ouellet
Keyword(s):  
Low Performance ◽  
African Agriculture
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