نتایج جستجو برای: multi factor models

تعداد نتایج: 2089299  

پایان نامه :0 1392

nowadays in trade and economic issues, prediction is proposed as the most important branch of science. existence of effective variables, caused various sectors of the economic and business executives to prefer having mechanisms which can be used in their decisions. in recent years, several advances have led to various challenges in the science of forecasting. economical managers in various fi...

Currently, the research of emergency supplies distribution and decision models mostly focus on deterministic models and exact algorithm. A few of studies have been done on the multi-level distribution network and matheuristic algorithm. In this paper, random processes theory is adopted to establish emergency supplies distribution and decision model for multi-level network. By analyzing the char...

Journal: :journal of optimization in industrial engineering 2016
alireza eydi hiva farughi farid abdi

time, cost and quality are considered as the main components in managing each project. previous researches have mainly focused on the time-cost trade-off problems. recently quality is considered as the most important factor in project�s success, which is influenced by time acceleration that is the less time is spent the more success is gained. in time-cost-quality trade-off problems, each act...

Ali Khazaei Hossein Parhizgar Mohammad Reza Dehghani

In this work, artificial neural network (ANN) has been employed to propose a practical model for predicting the surface tension of multi-component mixtures. In order to develop a reliable model based on the ANN, a comprehensive experimental data set including 15 ternary liquid mixtures at different temperatures was employed. These systems consist of 777 data points generally containing hydrocar...

A. Mahmood, E. Jaffrot, Pierre Duhamel, S. Sadough,

This paper investigates the Multi-band OFDM (MB-OFDM) based physical (PHY) layer proposal for IEEE 802.15.3a working group on short-range high data-rate Ultra-wide-Band (UWB) communications. An overview of the MB-OFDM PHY layer architecture with its various parameters is presented and the optimal choice of critical parameters is discussed. Next, we derive the theoretical un-coded Bit Error Rate...

Journal: :Molecular bioSystems 2010
Joshua F Apgar David K Witmer Forest M White Bruce Tidor

Computational models are increasingly used to understand and predict complex biological phenomena. These models contain many unknown parameters, at least some of which are difficult to measure directly, and instead are estimated by fitting to time-course data. Previous work has suggested that even with precise data sets, many parameters are unknowable by trajectory measurements. We examined thi...

Journal: :IEEE Transactions on Information Forensics and Security 2021

Multi-factor authentication (MFA) has been widely used to safeguard high-value assets. Unlike single-factor (e.g., password-only login), t-factor ( tFA) requires a user always carry and present t specified factors so as strengthen the security of login. Nevertheless, this may restrict experience in limiting flexibility factor usage, e.g., prefer choose any at hand for login authentication. To b...

K. Gholami, Z. Ghelej Beigi

Data envelopment analysis (DEA) is a common technique in measuring the relative efficiency of a set of decision making units (DMUs) with multiple inputs and multiple outputs. ‎‎Standard DEA models are ‎‎quite limited models‎, ‎in the sense that they do not consider a DMU ‎‎at different times‎. ‎To resolve this problem‎, ‎DEA models with dynamic ‎‎structures have been proposed‎.‎In a recent pape...

Journal: :SHS web of conferences 2023

In the changing financial market, price of products fluctuates continuously over time. The study static term structure interest rate on market can no longer satisfy actual needs, and dynamic model is imperative. Compared with structure, introduces a stochastic differential basis rate. This paper shows some relevant models including Vasicek Model, Single-Factor Dynamic Multi-Factor Kalman Filter...

Alimardani, Arvin, Ghaffari, Khodayari,

The lane change maneuver is among the most popular driving behaviors. It is also the basic element of important maneuvers like overtaking maneuver. Therefore, it is chosen as the focus of this study and novel multi-input multi-output adaptive neuro-fuzzy inference system models (MANFIS) are proposed for this behavior. These models are able to simulate and predict the future behavior of a Dri...

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