نتایج جستجو برای: data imbalance
تعداد نتایج: 2430091 فیلتر نتایج به سال:
BACKGROUND Epidemiologic evidence for work stress as a risk factor for coronary heart disease is mostly based on a single measure of stressful work known as job strain, a combination of high demands and low job control. We examined whether a complementary stress measure that assesses an imbalance between efforts spent at work and rewards received predicted coronary heart disease. METHODS This...
INTRODUCTION Month of Ramadan bring many changes in life style, especially the diet of Muslims all over the world among both fasting and nonfasting individuals. Hemodialysis patients are kept on restricted diet because of fluid and electrolytes imbalance. The aim of this study was to compare changes in the clinical and biochemical parameters in fasting and nonfasting hemodialysis patients durin...
introduction: many of those who survive following an earthquake die in the next phase due to preventable and treatable medical conditions such as hyperkalemia. the present study aimed to evaluate the trend of potassium changes in crush syndrome patients of bam earthquake. methods: in this retrospective cross-sectional study, using the database of bam earthquake victims, which were developed by ...
Electrolyte abnormalities are very common problems in clinical practice, and if chronic, their management can be difficult. Hypokalemia, defined as a serum potassium level <3.5 mmol/L, is an exceptionally common electrolyte abnormality encountered in clinical practice; >20% of hospitalized patients have been reported to have some degree of hypokalemia [1]. Hypomagnesemia is also common and has ...
Electrolyte abnormalities are among the most common reasons for patients to develop cardiac arrhythmias. Of all the electrolyte abnormalities, hyperkalemia is most rapidly fatal. A high degree of clinical suspicion and aggressive treatment of underlying electrolyte abnormalities can prevent many patients from progressing to cardiac arrest.
Comparative Analysis of Estimation Techniques for IQ Imbalance for OFDM Based WiMAX System: A Review
Wireless communication is becoming very popular now a days. Worldwide Interoperability for Microwave Access (WiMAX) system in wireless communication plays an important role and has been attracting the researchers in the last decade. WiMAX system has provided anefficient solution for ‘last mile’ access technology to provide high data rate internet access for residential as well as small business...
In this dissertation, the problem of learning from highly imbalanced data is studied. Imbalance data learning is of great importance and challenge in many real applications. Dealing with a minority class normally needs new concepts, observations and solutions in order to fully understand the underlying complicated models. We try to systematically review and solve this special learning task in t...
This thesis studies the diversity issue of classification ensembles for class imbalance learning problems. Class imbalance learning refers to learning from imbalanced data sets, in which some classes of examples (minority) are highly under-represented comparing to other classes (majority). The very skewed class distribution degrades the learning ability of many traditional machine learning meth...
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