Search Results for author: Waleed A. Yousef

Found 14 papers, 5 papers with code

On Statistical Learning of Branch and Bound for Vehicle Routing Optimization

1 code implementation15 Oct 2023 Andrew Naguib, Waleed A. Yousef, Issa Traoré, Mohammad Mamun

Recently, machine learning of the branch and bound algorithm has shown promise in approximating competent solutions to NP-hard problems.

Decision Making Graph Attention

UN-AVOIDS: Unsupervised and Nonparametric Approach for Visualizing Outliers and Invariant Detection Scoring

1 code implementation19 Nov 2021 Waleed A. Yousef, Issa Traore, William Briguglio

Among them is designing a visualization aided anomaly detection (VAAD), a type of software that aids analysts by providing UN-AVOIDS' detection algorithm (running in a back engine), NCDF visualization space (rendered to plots), along with other conventional methods of visualization in the original feature space, all of which are linked in one interactive environment.

Anomaly Detection Data Visualization

Classifier Calibration: with application to threat scores in cybersecurity

1 code implementation9 Feb 2021 Waleed A. Yousef, Issa Traore, William Briguglio

A calibrator is a function that maps the arbitrary classifier score, of a testing observation, onto $[0, 1]$ to provide an estimate for the posterior probability of belonging to one of the two classes.

Binary Classification Classifier calibration

Machine Learning in Precision Medicine to Preserve Privacy via Encryption

1 code implementation5 Feb 2021 William Briguglio, Parisa Moghaddam, Waleed A. Yousef, Issa Traore, Mohammad Mamun

Precision medicine is an emerging approach for disease treatment and prevention that delivers personalized care to individual patients by considering their genetic makeups, medical histories, environments, and lifestyles.

BIG-bench Machine Learning

Method and System for Image Analysis to Detect Cancer

no code implementations26 Aug 2019 Waleed A. Yousef, Ahmed A. Abouelkahire, Deyaaeldeen Almahallawi, Omar S. Marzouk, Sameh K. Mohamed, Waleed A. Mustafa, Omar M. Osama, Ali A. Saleh, Naglaa M. Abdelrazek

(1) We develop a novel algorithm for image enhancement so that mammograms acquired from any digital mammography machine look qualitatively of the same clarity to radiologists' inspection; and is quantitatively standardized for the detection algorithms.

Image Enhancement

Estimating the standard error of cross-Validation-Based estimators of classifier performance

no code implementations1 Aug 2019 Waleed A. Yousef

First, we analyze the variance of the Cross Validation (CV)-based estimators used for estimating the performance of classification rules.

General Classification

On The Smoothness of Cross-Validation-Based Estimators Of Classifier Performance

no code implementations31 Jul 2019 Waleed A. Yousef

We show that the latter is the only among the three versions that is "smooth" and hence looks mathematically like estimating the mean performance of the classification rules.

Prudence When Assuming Normality: an advice for machine learning practitioners

no code implementations30 Jul 2019 Waleed A. Yousef

In a binary classification problem the feature vector (predictor) is the input to a scoring function that produces a decision value (score), which is compared to a particular chosen threshold to provide a final class prediction (output).

BIG-bench Machine Learning Binary Classification

Machine Learning Assessment: implications to cybersecurity

no code implementations30 Jul 2019 Waleed A. Yousef

This chapter provides a concise review of this literature to establish a coherent theoretical framework for these methods that can estimate both the error rate (a one-sample statistic) and the AUC (a two-sample statistic).

BIG-bench Machine Learning

Machine Learning Construction: implications to cybersecurity

no code implementations24 Jun 2019 Waleed A. Yousef

We mean by \textit{construction} designing or inventing an appropriate algorithm that learns from the input data and achieves a good performance according to some optimality criterion.

BIG-bench Machine Learning Optical Character Recognition +4

Nested Cavity Classifier: performance and remedy

no code implementations23 Jun 2019 Waleed A. Mustafa, Waleed A. Yousef

We coin the term Nested Cavity Discriminant Analysis (NCDA) for the resulting classifier.

Learning meters of Arabic and English poems with Recurrent Neural Networks: a step forward for language understanding and synthesis

2 code implementations7 May 2019 Waleed A. Yousef, Omar M. Ibrahime, Taha M. Madbouly, Moustafa A. Mahmoud

Recognizing a piece of writing as a poem or prose is usually easy for the majority of people; however, only specialists can determine which meter a poem belongs to.

Poem meters classification

Matlab vs. OpenCV: A Comparative Study of Different Machine Learning Algorithms

no code implementations3 May 2019 Ahmed A. Elsayed, Waleed A. Yousef

The best of two worlds can be achieved by exploring using Matlab or similar environments to select the most successful algorithm; then, implementing the selected algorithm using OpenCV or similar environments to gain a speed factor.

BIG-bench Machine Learning Data Visualization

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