نتایج جستجو برای: predictors

تعداد نتایج: 102022  

2017
Valery Manokhin

Inductive (IVAP) and cross (CVAP) Venn–Abers predictors are computationally efficient algorithms for probabilistic prediction in binary classification problems. We present a new approach to multi-class probability estimation by turning IVAPs and CVAPs into multiclass probabilistic predictors. The proposed multi-class predictors are experimentally more accurate than both uncalibrated predictors ...

Journal: :Inf. Syst. 2006
Ben He Iadh Ounis

The prediction of query performance is an interesting and important issue in Information Retrieval (IR). Current predictors involve the use of relevance scores, which are time-consuming to compute. Therefore, current predictors are not very suitable for practical applications. In this paper, we study six predictors of query performance, which can be generated prior to the retrieval process with...

2017
Sheng Chen Binjie Zhao Wei Wang Ligen Shi Cesar Reis Jianmin Zhang

Despite years of effort, intracerebral hemorrhage (ICH) remains the most devastating form of stroke with more than 40% 30-day mortality worldwide. Hematoma expansion (HE), which occurs in one third of ICH patients, is strongly predictive of worse prognosis and potentially preventable if high-risk patients were identified in the early phase of ICH. In this review, we summarize data from recent s...

ژورنال: علوم آب و خاک 2004
امین شیروانی, , سیدمحمدجعفر ناظم السادات, ,

In Iran, about 75% of national rice production is supplied in Gilan and Mazandaran proviences which have the highest amount of precipitation. Seasonal prediction of rainfall induces significant improvement on yield production and on preventing climate hazardz over these feritle areas. Canonical correlation analysis (CCA) model was carried out evaluates the possibility of the prediction of win...

asiri, shahla, hoseinzadeh, touba, kazemnezhad, ehsan, paryad, ezat,

Introduction: Coronary artery disease is one of the most prevalent cardiovascular diseases in developed countries. Following a healthy diet and lifestyle decline emergence of the disease complication and readmission rate due to unstable angina and myocardial infarction. Promotion of self-efficacy after a cardiovascular event is the outcome that plays a vital role in increasing rehabilitation sk...

Journal: :research in cardiovascular medicine 0
avisa tabib heart valve disease research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran seyed ehsan abrishami heart valve disease research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran; heart valve disease research center, rajaie cardiovascular medical and research center, valiasr ave, niayesh blvd, tehran, ir iran. tel: +98-9132951707 mohammad mahdavi heart valve disease research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran hojjat mortezaeian heart valve disease research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran ziae totonchi heart valve disease research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran

conclusions the results of this study indicated that pmv predictors could be specific for each center and a good administration program is needed for each pediatric cardiac surgery center for the preoperative management of patients undergoing congenital heart surgeries. results a total of 300 patients, 56.7% male, were enrolled in this study. their mean age was 32 ± 40 months .the median durati...

2007
Saad Biaz Nitin H. Vaidya

y Abstract In the context of TCP, several researchers have proposed heuristics to detect or predict congestion in the network. In this paper, the term congestion predictors refers to such heuristics. Past proposals require TCP sender to reduce its window size when congestion is detected or predicted (otherwise, the heuristic may dictate that the sender window be held constant or increased). The...

In large open pit mines prediction of Peak Particle Velocity (PPV) provides useful information for safe blasting. At Sungun Copper Mine (SCM), some unstable rock slopes facing to valuable industrial facilities are both expose to high intensity daily blasting vibrations, threatening their safty. So, controlling PPV by developing accurate predictors is essential. Hence, this study proposes improv...

Hatefnia, Effat , Lotfi, Razieh, Rahimzadeh, Mitra,

Background: Men are more likely than women to have cancer and die from it. In addition, the likelihood of using healthcare services and preventive measures, such as screening for cancer, is much lower among men than women. This study aimed to determine the predictors of cancer screening behavior in middle-aged men employed in universities using the Health Belief Model. Materials and Methods: Th...

Background: Physicians’ and nurses’ experience of the COVID-19 pandemic and its physical and psychological consequences can be associated with changes in biological and hormonal levels, experienced as fatigue, restlessness, disruptions in one's mood, and sleep quality. This study examined the role of depression and death anxiety in contracting COVID-19 among healthcare staff. Methods: The stat...

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