نتایج جستجو برای: lssvm

تعداد نتایج: 355  

Abdolhamid Sameni, Ali Chamkalani

The problem of slow drilling in deep shale formations occurs worldwide causing significant expenses to the oil industry. Bit balling which is widely considered as the main cause of poor bit performance in shales, especially deep shales, is being drilled with water-based mud. Therefore, efforts have been made to develop a model to diagnose drilling effectivity. Hence, we arrived at graphical cor...

Journal: :Atmosphere 2022

Wind speed (WS) is an important factor in wind power generation. Because of this, drastic changes the WS make it challenging to analyze accurately. Therefore, this study proposed a novel framework based on stacking ensemble machine learning (SEML) method. The application for modeling was developed at sixteen stations Iran. SEML method consists two levels. In particular, eleven (ML) algorithms s...

Journal: :BCP business & management 2022

Climate change has an unprecedented impact on the world, and it is also important era proposition to be solved in China's development. Carbon emissions trading occupies position, which aims adapt global carbon neutrality context implement sustainable development requirements. The market mechanism of China deal with climate change, position. Based emission price data Guangdong Province from 2015...

با توجه به نیاز شبیه سازی سری های زمانی بارش در مقیاس های مختلف برای مقاصد مهندسی از یک طرف و عدم ثبت این پارامترها در مقیاس های ریز بدلیل مشکلات اجرایی و اقتصادی از طرف دیگر، ریزمقیاس کردن بارش به مقیاس مورد نظر، یک امر ضروری می باشد. در این مطالعه، برای ریزمقیاس کردن سری زمانی بارش ایستگاه های تبریز و سهند، با توجه به ویژگی های غیرخطی مقیاس های زمانی، مدل ترکیبی موجک – حداقل مربعات ماشین بردا...

2014
Weipeng Zhang Jie Shen Guangcan Liu Yong Yu

As a fundamental technique that concerns several vision tasks such as image parsing, action recognition and clothing retrieval, human pose estimation (HPE) has been extensively investigated in recent years. To achieve accurate and reliable estimation of the human pose, it is well-recognized that the clothing attributes are useful and should be utilized properly. Most previous approaches, howeve...

Journal: :TELKOMNIKA (Telecommunication Computing Electronics and Control) 2020

Journal: :International Journal of Chemical Engineering 2022

The main aim of this work is the determination aromaticity in biochar from easier accessible parameters (e.g., elemental composition). To end, two machine learning models, including adaptive neurofuzzy inference system (ANFIS) and least-squares support vector (LSSVM), were used to predict constant form 98 dataset gathered earlier reported sources. outputs statistical showed that LSSVM model has...

Journal: :ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences 2023

Abstract. Flood causes several threats with outcomes which include peril to human and animal life, damage property, adversity agricultural fields. Hence, flood prediction is highly significant for the mitigating municipal environmental damage. The aim of this study was assessing performance different machine learning methods in predicting Karkheh basin. To this, we used Support Vector Machine (...

Journal: :Indonesian Journal of Electrical Engineering and Computer Science 2021

Air temperature is an essential climatic component particularly in water resources management and other agro-hydrological/meteorological activities planning This paper examines the prediction capability of three machine learning models, least square support vector (LSSVM), group method data handling neural network (GMDHNN) classification regression trees (CART) air forecasting using monthly Ast...

Journal: :Applied sciences 2022

A reliability analysis method based on least squares support vector machines with an improved particle swarm optimization algorithm (IPSO-LSSVM) is proposed to calculate the of concrete gravity dams when explicit nonlinear limit-state functions are difficult obtain accurately. First, main failure modes and their influencing factors determined. Second, Latin hypercube sampling used create sample...

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