Alaeddine Hmidi

Prof. Dr. Alaeddine Hmidi


Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2021 in Computational Intelligence and Neuroscience
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Journal Article
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AHAlaeddine Hmidi
Alaeddine Hmidi
MJMalek Jihene
Malek Jihene
Deep network in network (DNIN) model is an efficient instance and an important extension of the convolutional neural network (CNN) consisting of alternating convolutional layers and pooling layers. In this model, a multilayer perceptron (MLP), a nonlinear function, is exploited to replace the linear filter for convolution. Increasing the depth of DNIN can also help improve classification accuracy while its formation becomes more difficult, learning time gets slower, and accuracy becomes saturated and then degrades. This paper presents a new deep residual network in network (DrNIN) model that represents a deeper model of DNIN. This model represents an interesting architecture for on‐chip implementations on FPGAs. In fact, it can be applied to a variety of image recognition applications. This model has a homogeneous and multilength architecture with the hyperparameter “L” (“L” defines the model length). In this paper, we will apply the residual learning framework to DNIN and we will explicitly reformulate convolutional layers as residual learning functions to solve the vanishing gradient problem and facilitate and speed up the learning process. We will provide a comprehensive study showing that DrNIN models can gain accuracy from a significantly increased depth. On the CIFAR‐10 dataset, we evaluate the proposed models with a depth of up to L = 5 DrMLPconv layers, 1.66x deeper than DNIN. The experimental results demonstrate the efficiency of the proposed method and its role in providing the model with a greater capacity to represent features and thus leading to better recognition performance.

24 May 2020 in Neural Computing and Applications
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Journal Article
Closed access
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AHAlaeddine Hmidi
Alaeddine Hmidi
MJMalek Jihene
Malek Jihene

5 April 2023 in Multimedia Tools and Applications
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Journal Article
Closed access
PDF file
AHAlaeddine Hmidi
Alaeddine Hmidi
MJMalek Jihene
Malek Jihene

20 August 2022 in Multimedia Tools and Applications
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Journal Article
Closed access
PDF file
AHAlaeddine Hmidi
Alaeddine Hmidi
MJMalek Jihene
Malek Jihene

1 January 2021
Verified
Book Chapter
Closed access
AHAlaeddine Hmidi
Alaeddine Hmidi
MJMalek Jihene
Malek Jihene
The reduction in the size of convolution filters has been shown to be effective in image classification models. They make it possible to reduce the calculation and the number of parameters used in the operations of the convolution layer while increasing the efficiency of the representation. The authors present a deep architecture for classification with improved performance. The main objective of this architecture is to improve the main performances of the network thanks to a new design based on CONVblock. The proposal is evaluated on a classification database: CIFAR-10 and MNIST. The experimental results demonstrate the effectiveness of the proposed method. This architecture offers an error of 1.4% on CIFAR-10 and 0.055% on MNIST.

1 January 2020
Verified
Book Chapter
Closed access
AHAlaeddine Hmidi
Alaeddine Hmidi
MJMalek Jihene
Malek Jihene
Deep Learning is a relatively modern area that is a very important key in various fields such as computer vision with a trend of rapid exponential growth so that data are increasing. Since the introduction of AlexNet, the evolution of image analysis, recognition, and classification have become increasingly rapid and capable of replacing conventional algorithms used in vision tasks. This study focuses on the evolution (depth, width, multiple paths) presented in deep CNN architectures that are trained on the ImageNET database. In addition, an analysis of different characteristics of existing topologies is detailed in order to extract the various strategies used to obtain better performance.