Sana Boujnah

dblp:234/3307 · DBLP profile ↗
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6ranked-venue papers
4as first author
4since 2021 · last 2024
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Graphics, computer vision, multimedia, augmented reality and games · 4 · 3 first-author · 3 since 2021Human-computer interaction and ubiquitous computing · 3 · 2 first-author · 3 since 2021Applied, interdisciplinary, general and emerging computing · 2 · 1 first-author · 1 since 2021Artificial intelligence and machine learning · 1 · 1 first-authorSystems, architecture and hardware · 1 · 1 first-authorSoftware engineering, systems software and programming languages · 1 · 1 since 2021
YearPublicationVenuePosition
2024 A Novel Handcrafted Features and Deep BiLSTM Neural Network for Lymphoma Recognition
abstract
The human lymphatic system is commonly affected by two primary forms of lymphoma disease: Hodgkin lymphoma and non-Hodgkin lymphoma. The second type, in particular, has emerged as a leading cause of patient mortality. Therefore, achieving a correct and early diagnosis is crucial for healthcare practitioners to devise suitable therapeutic strategies. For these reasons, in this work, We suggest the development of a computer-aided diagnosis system utilizing a novel hybrid approach that incorporates Handcrafted features and BiLSTM networks for the discrimination and analysis of patients with evolving lymphoma from those with residual masses who do not need re-treatment. Our proposed approach combines the concatenation of all extracted features obtained through various handcrafted methods (including histogram analysis, textural, and shape analysis) to analyze the functional, morphological, and anatomical aspects of each lesion. The "LWBDWMRI" databases were utilised for the experiment. We compared the experimental results of the suggested approach to each model: BiLSTM, LSTM, and VGG16. This comparison was conducted across five different approach cases: concatenating functional features only, textural features only, morphological features only, combining textural and morphological features to obtain global anatomical features, and incorporating both functional and anatomical criteria. The proposed approach achieved 96%, 97%, 98%, and 26.11 seconds for Accuracy, F1-score, Recall, and execution time, respectively.
Radhia Ferjaoui, Sana Boujnah, Anouar Ben Khalifa
CoDIT2
2023 Hybrid approach for speaker recognition based on formant and pitch extraction
abstract
Human voice is an ideal data source for identifying people in many applications. Because of the increasing need for security in different public places, voice biometrics may be a good solution, as we can easily take voice records. This paper provides a brief overview of the approaches utilized in recognizing speakers, and then presents a novel approach for recognizing speakers in degraded smart-home conditions. The suggested approach includes a pre-processing phase, a feature extraction phase, and a classification phase, where the feature extraction phase consists of formant extraction to get the spectrum energy maxima of speech audio, dynamic time warping (DTW)to find an optimal alignment between two provided temporal sequences under definite restrictions, and refinement process to improve the results of the DTW system output. The experiments are carried out on a database containing 1,248 samples in order to validate the suggested approach. The latter has good results as regards the state of the art with 94.5% accuracy.
Sana Boujnah, Radhia Ferjaoui, Anouar Ben Khalifa
CW1
2023 Person Identification with Voice and Ear-print in Degraded Conditions for Smart Home Access
abstract
Since the smartphone is adapted to the ambient intelligence and the smart home systems are remotely accessed through the smartphones, there is a need for a secure authentication system based on some biometrics proprieties that can be taken from a smartphone. The identification of persons through ear and voice print is one of the basic biometric matters. The earlier research in ear recognition have shown that human ear is one of the representative human biometrics with uniqueness and stability. Indeed, the human voice is a perfect source of data for person identification in many applications. In this paper, we propose a fusion between the ear and voice biometrics in degraded conditions in a smart home context at 3 levels (feature, score, and decision). The experiments are conducted on the EVDDC database and a chimeric database (TIMIT and USTB-I). The best results are obtained with the feature level fusion (95.8%) with the KNN classifier.
Sana Boujnah, Radhia Ferjaoui, Anouar Ben Khalifa
CW1
2023 A Novel Public Database of Lymphoma for Whole Body Diffusion-Weighted MRI
abstract
Lymphoma affects the human lymphatic system, it has become one of the leading causes of patient deaths. Hence, accurate diagnosis is essential to help doctors prescribe a suitable treatment. In this work, we propose a new database that contains 50 volunteer patients treated for lymphoma on Whole Body (head/neck, chest, abdomen, and pelvis regions). These collected databases contain some MRI sequences and medical information of patients which tells whether that lesion is evolutive lymphoma or residual masses. It is mainly composed of 100000 images on axial, coronal, and sagittal plans. To highlight the utility of this dataset, we used a computer-aided diagnosis (CAD) system to recognize evolutive lymphoma from residual masses. This recognition is very important from a medical point of view, as it helps identify patients who may need additional therapy. After successful steps of database preparation, features extraction and selection, we evaluated several Machine Learning models such as Random Forest, Decision Tree, Naive Bayes, Extreme Gradient Boost, Logistic Regression, K-Nearest Neighbors (K-NN), and Support Vector Machine (SVM). The metrics of Accuracy, Precision, Sensitivity, Specificity, confusion matrix, Positive Predictive Value, Negative Predictive Value, Fl-score, missed classification, and Recall was measured to evaluate our CAD system based on AI models. The best obtained results reach 95% accuracy for SVM with RBF kernel. In addition, the proposed approach was compared to three literature works, and it gives much better results that can correctly recognize more than 64 lesions out of 67 cases. Interested researchers could contact the author to acquire the database.
Radhia Ferjaoui, Sana Boujnah, Nour El Houda Kraiem, Tarek Kraiem, Anouar Ben Khalifa
CW2
2018 Person's Identification with Partial Fingerprint Based on a Redefinition of Minutiae Features
abstract
The identification of persons through partial fingerprint is one of the basic biometrie matters. The context of use is situated particularly in forensics. The main issue is the insufficiency of information contained in the partial fingerprint, it depends from the size of the proportion found in the crime scene. In this paper, we propose a novel approach for the identification of persons through partial fingerprint which uses redefined characteristics of minutiae extracted from the fingerprint image. To validate our work, we exploit two complete databases FVC 2004 and POLYU HRF to form our dataset. The proposed approach reaches recognition rates up to 98.06% and 98.82% when using datasets extracted from POLYU HRF database and FVC 2004 database respectively. It outperforms four state-of-the-art methods in term of recognition rates in different percentage of incomplete fingerprint image.
Sana Boujnah, Sami Jaballah, Anouar Ben Khalifa, Mohamed Lassaad Ammari
AICCSA1
2018 Smartphone-Captured Ear and Voice Database in Degraded Conditions
abstract
The identification of persons through earprint and voice print is one of the basic biometric matters. The context of use is situated in smart homes. The main issue is the lack of databases containing voice records and ear images from the same persons collected with a smart phone. In this paper, we propose a new database for the persons identification through ear and voice print in degraded conditions. The database contains 111 subjects with more than 12 samples for each one. The new database is collected in degraded conditions, the ear images have different occlusion as scarf, hair, glasses, earrings while the voice records are collected with different types of noise in the background as music, cars, street, conversation. Interested researchers could contact the author to acquire the database.
Sana Boujnah, Sami Jaballah, Mohamed Lassaad Ammari
IPAS1