نتایج جستجو برای: logistic regression lr

تعداد نتایج: 337462  

Journal: :محیط شناسی 0
حمیدرضا کامیاب کارشناسی ارشد مهندسی منابع طبیعی- محیط زیست دانشگاه تربیت مدرس تهران عبدالرسول سلمان ماهینی دانشیار گروه محیط زیست دانشگاه علوم کشاورزی و منابع طبیعی گرگان سید محسن حسینی دانشیار گروه جنگلداری دانشگاه تربیت مدرس تهران مهدی غلامعلی فرد دانشجوی دورة دکتری آلودگی دریا دانشگاه تربیت مدرس تهران

the logistic regression (lr) method, as an empirical estimation method, was used to model urban growth in gorgan city between the years 1987-2001. three groups of variables including social-economic, land use and biophysical variables were used. similarity among variables is probable. to remove the correlated variables, covariance was calculated and distance to administrative, sporting centers ...

2011
Jojene R. Santillan Enrico C. Paringit

This paper presents a technique to detect oil spills in ENVISAT Advanced Synthetic Aperture Radar (ASAR) images using radar backscatter thresholding and logistic regression analysis. We developed and tested this technique using 4 Envisat ASAR images that were acquired many days after the M/T Solar I oil spill incident occurred on August 11, 2006 in Panay Gulf, southwest of Guimaras Island in Vi...

2017
Soyoung Park Se-Yeong Hamm Hang-Tak Jeon Jinsoo Kim

This study mapped and analyzed groundwater potential using two different models, logistic regression (LR) and multivariate adaptive regression splines (MARS), and compared the results. A spatial database was constructed for groundwater well data and groundwater influence factors. Groundwater well data with a high potential yield of ≥70 m3/d were extracted, and 859 locations (70%) were used for ...

Journal: :CoRR 2012
Jingwei Liu

To enhance the accuracy of protein–protein interaction function prediction, a 2-order graphic neighbor information feature extraction method based on undirected simple graph is proposed in this paper , which extends the 1-order graphic neighbor featureextraction method. And the chi-square test statistical method is also involved in feature combination. To demonstrate the effectiveness of our 2-...

Journal: :Ground water 2001
B T Nolan

Characteristics of nitrogen loading and aquifer susceptibility to contamination were evaluated to determine their influence on contamination of shallow ground water by nitrate. A set of 13 explanatory variables was derived from these characteristics, and variables that have a significant influence were identified using logistic regression (LR). Multivariate LR models based on more than 900 samp...

2013
Herng-Chia Chiu Te-Wei Ho King-Teh Lee Hong-Yaw Chen Wen-Hsien Ho

The aim of this present study is firstly to compare significant predictors of mortality for hepatocellular carcinoma (HCC) patients undergoing resection between artificial neural network (ANN) and logistic regression (LR) models and secondly to evaluate the predictive accuracy of ANN and LR in different survival year estimation models. We constructed a prognostic model for 434 patients with 21 ...

Social media allows people interact to express their thoughts or feelings about different subjects. However, some of users may write offensive twits to other via social media which known as cyber bullying. Successful prevention depends on automatically detecting malicious messages. Automatic detection of bullying in the text of social media by analyzing the text "twits" via one of the machine l...

Journal: :Water 2022

Machine learning algorithms are commonly employed in landslide susceptibility assessments. Recently, that utilize artificial intelligence have come into prominence. This study attempts to adapt the most fundamental framework of deep and introduces fuzzy theory concepts analyze while updating network parameters with trial-and-error methods. The final analysis results will compare those logistic ...

2010
F. Mancini

This study focuses on landslide susceptibility mapping in the Daunia area (Apulian Apennines, Italy) and achieves this by using a multivariate statistical method and data processing in a Geographical Information System (GIS). The Logistic Regression (hereafter LR) method was chosen to produce a susceptibility map over an area of 130 000 ha where small settlements are historically threatened by ...

2014
W. Holmes Finch Jocelyn H. Bolin Ken Kelley

Classification using standard statistical methods such as linear discriminant analysis (LDA) or logistic regression (LR) presume knowledge of group membership prior to the development of an algorithm for prediction. However, in many real world applications members of the same nominal group, might in fact come from different subpopulations on the underlying construct. For example, individuals di...

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