Results 31 to 40 of about 1,655,569 (337)

Retention Time and Ion Abundance Ratio of 8 Common Drugs (Poisons) by LC-MS/MS Qualitative Analysis#br# [PDF]

open access: yesFayixue Zazhi, 2020
Objective To investigate the maximum allowable deviations of retention time and ion abundance ratio of the 8 common drugs (poisons) from 3 categories, poisons (methamphetamine, morphine, ketamine), benzodiazepines (estazolam, midazolam, diazepam ...
MIN Tao, LIU Shao-dan, XIN Guo-bin, et al.
doaj   +1 more source

Median Absolute Deviation for BGP Anomaly Detection

open access: yesFuture Internet
The stability and reliability of the global Internet infrastructure heavily rely on the Border Gateway Protocol (BGP), a crucial protocol that facilitates the exchange of routing information among various Autonomous Systems, ensuring seamless ...
Maria Andrea Romo-Chavero   +3 more
doaj   +1 more source

Detecting Outliers in the Simple Linear Regression for Children Affected with Leukemia in Mosul City

open access: yesTikrit Journal of Pure Science, 2022
In this study, the problem of outlier detection in “linear regression” analysis is studied using the “median” and “mean” “absolute deviation” about the median.
Shaymaa Riyadh Thanoon   +1 more
doaj   +1 more source

Least Absolute Deviation Support Vector Regression [PDF]

open access: yesMathematical Problems in Engineering, 2014
Least squares support vector machine (LS‐SVM) is a powerful tool for pattern classification and regression estimation. However, LS‐SVM is sensitive to large noises and outliers since it employs the squared loss function. To solve the problem, in this paper, we propose an absolute deviation loss function to reduce the effects of outliers and derive a ...
Wang, Kuaini   +3 more
openaire   +1 more source

Correlation of electrocardiogram changes with epicardial and myocardial perfusion in ST-elevation myocardial infarction

open access: yesJournal of Indian College of Cardiology, 2023
Background: The present study was aimed to find the correlation of electrocardiographic changes with epicardial thrombolysis in myocardial infarction (TIMI) flow grade and TIMI myocardial perfusion grade (TMPG) after reperfusion in ST-elevation ...
Mahesh Kharade   +4 more
doaj   +1 more source

VAR Portfolio Optimal: Perbandingan Antara Metode Markowitz dan Mean Absolute Deviation

open access: yesJurnal Siasat Bisnis, 2009
Portfolio selection method which have been introduced by Harry Markowitz (1952) used variance or deviation standard as a measure of risk. Kanno and Yamazaki (1991) introduced another method and used mean absolute deviation as a measure of risk instead of
R. Agus Sartono, Arie Andika Setiawan
doaj   +4 more sources

Absolute Deviation-Based Control Charts for Monitoring Mean of Weibull Distribution With Type-I Censoring

open access: yesIEEE Access, 2021
This article presents deviation based exponentially weighted moving average control charts to monitor type-I censored data. Due to practical applications, this study considers Weibull distribution to assess the performance of the proposed memory-type ...
Sajid Ali   +4 more
doaj   +1 more source

Belief Propagation Algorithm for Portfolio Optimization Problems

open access: yes, 2010
The typical behavior of optimal solutions to portfolio optimization problems with absolute deviation and expected shortfall models using replica analysis was pioneeringly estimated by S. Ciliberti and M. M\'ezard [Eur. Phys. B.
Shinzato, Takashi, Yasuda, Muneki
core   +3 more sources

Sutte Indicator: an approach to predict the direction of stock market movements [PDF]

open access: yes, 2018
The purpose of this research is to apply technical analysis of Sutte Indicator in stock trading which will assist in the investment decision making process i.e. buying or selling shares. This research takes data of "A" on the Indonesia Stock Exchange(IDX
Ahmar, Ansari Saleh
core   +2 more sources

Direct Least Absolute Deviation Fitting of Ellipses [PDF]

open access: yesMathematical Problems in Engineering, 2020
Scattered data from edge detection usually involve undesired noise which seriously affects the accuracy of ellipse fitting. In order to alleviate this kind of degradation, a method of direct least absolute deviation ellipse fitting by minimizing the ℓ1 algebraic distance is presented.
Gang Zhou   +3 more
openaire   +1 more source

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