Results 111 to 120 of about 13,798,376 (223)

Can normalized difference vegetation index and climate data be used to estimate soil carbon, nitrogen, and phosphorus and their ratios in the Xizang grasslands?

open access: yesFrontiers in Earth Science
Accurately quantifying the relative effects of climate change and human activities on soil carbon, nitrogen, and phosphorus in alpine grasslands and their feedback is an important aspect of global change, and high-precision models are the key to solving ...
Shaohua Wang   +6 more
doaj   +1 more source

Direct Policy Search for a Risk‐Based Levee Design Framework With Scenario Reduction

open access: yesJournal of Flood Risk Management, Volume 19, Issue 3, September 2026.
ABSTRACT Risk‐based management of coastal flood risk using realistic, process‐based models poses computational challenges, particularly when addressing uncertainties like sea‐level rise. This study explores the use of direct policy search (DPS) as a state‐dependent, adaptive decision‐making approach for upgrading levee systems.
Jingya Wang, David R. Johnson
wiley   +1 more source

New Approach: Customer Segmentation using RFM Model and Demand Classification

open access: yes
This research introduces an integrated data mining framework that combines RFM (Recency, Frequency, Monetary) analysis with demand pattern classification—encompassing Smooth, Erratic, Intermittent, and Lumpy categories—to refine customer segmentation ...
Muhammad Fermi Pasha   +2 more
core   +1 more source

Customer Segmentation Using an Extended RFM Model and Clustering Algorithms in E-Commerce

open access: yesJournal of Theoretical and Applied Electronic Commerce Research
Customer segmentation is a critical step in the efficient utilization of customer data and maximization of profitability in the e-commerce sector.
Tuncay Ozcan
doaj   +1 more source

Wittgenstein, Heidegger, and the Paradox of Ineffability

open access: yesPhilosophy Compass, Volume 21, Issue 5, September/October 2026.
ABSTRACT Wittgenstein and Heidegger are often cited as the greatest philosophers of the 20th Century. However, they are often taken to be very different kinds of philosopher, foundational to very different kinds of philosophy. While Wittgenstein is listed as one of the founders of the analytic tradition, Heidegger is listed as one of the founders of ...
David Lindeman
wiley   +1 more source

A Fuzzy Linguistic RFM Model Applied to Campaign Management

open access: yes, 2018
In the literature there are some proposals for integrated schemes for campaign management based on segmentation from the results of the RFM model. RFM is a technique used to analyze customer behavior by means of three variables: Recency, Frequency and Monetary value.
Carrasco González, Ramón Alberto   +1 more
openaire   +1 more source

Optokinetic stimulation modulates vestibular contribution to postural control

open access: yesThe Journal of Physiology, Volume 604, Issue 17, Page 7337-7350, 1 September 2026.
Abstract figure legend Healthy young adults completed repeated standing balance trials while receiving stochastic vestibular stimulation (SVS) with or without optokinetic visual motion. Vestibular contributions to postural control were quantified from the frequency‐domain coupling between SVS and mediolateral ground reaction forces using coherence and ...
Antonio S. Pierre   +4 more
wiley   +1 more source

Association between relative fat mass and obstructive sleep apnea and the potential mediating effect of hypertension: based on NHANES 2005-2008 and 2015-2018

open access: yesNutrition Journal
Background Obesity has been identified as one of the contributing factors to obstructive sleep apnea (OSA). The current obesity assessment indicators have poor ability to distinguish between fat and muscle.
Qizheng Guo   +7 more
doaj   +1 more source

Customer segmentation using RFM analysis

open access: yes, 2020
This paper is a research on the segmentation of customers. The clustering of customers is done based on the variables recency, frequency and monetary value. Such a clustering is called an RFM-model.
van Burg, J.M. (author)
core  

RFM analysis optimized [PDF]

open access: yes, 2005
In the classic recency, frequency and monetary approach to market segmentation, i.e. RFM analysis, given a time frame, customers are clustered together into an arbitrary number of segments according to their most recent day of purchase, the number of ...
Schmitz, Eber Assis   +5 more
core  

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