نتایج جستجو برای: multiple causes and multiple indicators jel classification e17

تعداد نتایج: 16990846  

Journal: :CoRR 1997
Eric V. Siegel

Fourteen linguistically-motivated numerical indicators are evaluated for their ability to categorize verbs as either states or events. The values for each indicator are computed automatically across a corpus of text. To improve classification performance, machine learning techniques are employed to combine multiple indicators. Three machine learning methods are compared for this task: decision ...

Bo-Chu Wang Qi-Yi He Shui-Ping Yang xian yang, Xiao-Dong Yu Xue Zhang

The aim of this paper is to develop a rapid, and highly sensitive quantitative HPLC fingerprint method with multiple indicators by using the Compound Chinese Medicine Wuwei Changyanning granule and 5 herbs in the prescription. The quantitative fingerprint chromatogram with multiple indicators was investigated. ⅰ)6 compositions included rutin, gallic acid, chlorogenic acid, atractylenolideⅠ, pac...

The lack of a comprehensive index to measure the changes in human capital in various dimensions of the quantity and quality of education in the country has caused educational planners and policy makers to face a lack of information for planning the country's education.  This research was inspired by the model of making composite indicators published by the Organization for Economic Cooperation ...

Bo-Chu Wang Qi-Yi He Shui-Ping Yang xian yang, Xiao-Dong Yu Xue Zhang

The aim of this paper is to develop a rapid, and highly sensitive quantitative HPLC fingerprint method with multiple indicators by using the Compound Chinese Medicine Wuwei Changyanning granule and 5 herbs in the prescription. The quantitative fingerprint chromatogram with multiple indicators was investigated. ⅰ)6 compositions included rutin, gallic acid, chlorogenic acid, atractylenolideⅠ, pac...

Alavi, Azam , Golkar, Golamreza ,

Introduction: Medical error causes severe emotional responses in health care providers and makes them second victims. This study aimed to explain the experience of second victims of medical mistakes leading to death or permanent complication. Method: This research was conducted with a qualitative approach and content analysis method in 2020. Using a purposeful sampling method, ten physicians a...

2001
William J Browne Harvey Goldstein

In the social and other sciences many data are collected with a known but complex underlying structure. Over the past two decades there has been an increase in the use of multilevel modelling techniques that account for nested data structures. Often however the underlying data structures are more complex and cannot be fitted into a nested structure. First, there are cross-classified models wher...

2017
Alessandro Barbarino Efstathia Bura

Factor models are widely used in summarizing large datasets with few underlying latent factors and in building time series forecasting models for economic variables. In these models, the reduction of the predictors and the modeling and forecasting of the response y are carried out in two separate and independent phases. We introduce a potentially more attractive alternative, Sufficient Dimensio...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زیست شناسی 1388

126 abstract: in this research we studied the effects of cyclic hydration and dehydration of cysts of artemia urmiana and artemia parthenogenetica on the hatching percentage, survival and growth. the experiment was carried out in 3 treatments (1-3 hydration/dehydration cycles) with 3 replicates for each treatment. later effects of cold preservation at -20°c during three time periods were ...

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