Results 21 to 30 of about 14,330 (285)

Optimization, maxent models, and conditional estimation without magic [PDF]

open access: yesProceedings of the 2003 Conference of the North American Chapter of the Association for Computational Linguistics on Human Language Technology Tutorials - NAACL '03, 2003
This tutorial aims to cover the basic ideas and algorithms behind techniques such as maximum entropy modeling, conditional estimation of generative probabilistic models, and issues regarding the use of models more complex than simple Naive Bayes and Hidden Markov Models.
Christopher D. Manning, Dan Klein 0001
openaire   +2 more sources

Potential distribution prediction of Deyeuxia angustifolia in the Tumen River Basin and analysis of major impact factors

open access: yesFrontiers in Environmental Science, 2022
Deyeuxia angustifolia acts as an indicator of the changes in wetland ecosystems and plays an important ecological role in their functions. Previous studies have shown that the Tumen River Basin is of wide global interest as a transboundary basin area ...
Jin Zong   +11 more
doaj   +1 more source

Collinearity in ecological niche modeling: Confusions and challenges

open access: yesEcology and Evolution, 2019
Ecological niche models are widely used in ecology and biogeography. Maxent is one of the most frequently used niche modeling tools, and many studies have aimed to optimize its performance.
Xiao Feng   +4 more
doaj   +1 more source

Maximum Entropy Modeling for the Prediction of Potential Plantation Distribution of Arabica coffee under the CMIP6 Mode in Yunnan, Southwest China

open access: yesAtmosphere, 2022
As one of three major beverages in the world, coffee ranks first in terms of production, consumption, and economic output. However, little is known about the habitat of Arabica coffee and the key environmental factors that influence its ecological ...
Shuo Zhang   +5 more
doaj   +1 more source

Detecting fingerprints of landslide drivers: A MaxEnt model [PDF]

open access: yesJournal of Geophysical Research: Earth Surface, 2013
Landslides are important geomorphic events that sculpt river basins by eroding hillslopes and providing sediments to coastal areas. However, landslides are also hazardous events for socio‐ecological systems in river basins causing enormous biodiversity, economic, and social impacts. We propose a probabilistic spatially explicit model for the prediction
Convertino M.   +2 more
openaire   +3 more sources

Distribution area changes of Cenchrus spinifex in China under climate change scenarios

open access: yesGuangxi Zhiwu, 2023
Cenchrus spinifex is one of the invasive plant species in China, which seriously affects the animal husbandry and ecological environment in China. In order to predict the change of suitable distribution area of C.
Xiaoli ZHANG, Zening CHEN, Zhengjun WU
doaj   +1 more source

The Most Important Factors that Affect the Potential of Groundwater Resources Piranshahr Watershed (West Azarbaijan) Using the MaxEnt Model and the GIS [PDF]

open access: yesپژوهش‌های آبخیزداری, 2020
Groundwater is the most important and vital natural resource in arid and semi-arid regions. The purpose of the study is to determine the potential of groundwater in different areas of the watershed and prioritize the factors affecting it.
Mehdi Teimouri, Omid Asadi Nalivan
doaj   +1 more source

Maxent-Stress Optimization of 3D Biomolecular Models

open access: yesCoRR, 2017
Accepted by 25th Annual European Symposium on Algorithms (ESA 2017)
Michael Wegner   +3 more
openaire   +4 more sources

Modelling Distributions of Asian and African Rice Based on MaxEnt

open access: yesSustainability, 2023
Rice landraces, including Asian rice (Oryza sativa L.) and African rice (Oryza glaberrima Steud.), provide important genetic resources for rice breeding to address challenges related to food security. Due to climate change and farm destruction, rice landraces require urgent conservation action.
Yunan Lin   +7 more
openaire   +1 more source

Global potential distribution prediction of Xanthium italicum based on Maxent model [PDF]

open access: yesScientific Reports, 2021
AbstractAlien invasive plants pose a threat to global biodiversity and the cost of control continues to rise. Early detection and prediction of potential risk areas are essential to minimize ecological and socio-economic costs. In this study, the Maxent model was used to predict current and future climatic conditions to estimate the potential global ...
Yang Zhang   +4 more
openaire   +3 more sources

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