Vahid Haji Hashemi

According to our database, Vahid Haji Hashemi authored at least 14 papers between 2014 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

Hybrid time-spatial video saliency detection method to enhance human action recognition systems.

Abdorreza Alavi Gharahbagh, Vahid Hajihashemi, Marta Campos Ferreira, José J. M. Machado, João Manuel R. S. Tavares

Multim. Tools Appl., September, 2024

A Hybrid Hierarchical Mathematical Heuristic Solution of Sparse Algebraic Equations in Sentiment Analysis.

Maryam Jalali, Morteza Zahedi, Abdorreza Alavi Gharahbagh, Vahid Hajihashemi, José J. M. Machado, João Manuel R. S. Tavares

Inf., September, 2024

2023

A Hierarchical modified AV1 codec for compression cartesian form of holograms in holo and object planes.

Vahid Hajihashemi, Abdorreza Alavi Gharahbagh, Azam Bastanfard, Hugo S. Oliveira, Gonçalo Almeida, Zhen Ma, João Manuel R. S. Tavares

Multim. Tools Appl., March, 2023

Deep Learning Approach for Human Action Recognition Using a Time Saliency Map Based on Motion Features Considering Camera Movement and Shot in Video Image Sequences.

Abdorreza Alavi Gharahbagh, Vahid Hajihashemi, José J. M. Machado, João Manuel R. S. Tavares

Inf., 2023

Audio Event Detection Based on Cross Correlation in Selected Frequency Bands of Spectrogram.

Vahid Hajihashemi, Abdorreza Alavi Gharahbagh, José J. M. Machado, João Manuel R. S. Tavares

Proceedings of the Information Systems and Technologies, 2023

Camera Movement Cancellation in Video Using Phase Congruency and an FFT-Based Technique.

Abdorreza Alavi Gharahbagh, Vahid Hajihashemi, José J. M. Machado, João Manuel R. S. Tavares

Proceedings of the Information Systems and Technologies, 2023

2022

Classification of Heart Sounds Using Chaogram Transform and Deep Convolutional Neural Network Transfer Learning.

Ali Harimi, Yahya Majd, Abdorreza Alavi Gharahbagh, Vahid Hajihashemi, Zeynab Esmaileyan, José J. M. Machado, João Manuel R. S. Tavares

Sensors, 2022

Binaural Acoustic Scene Classification Using Wavelet Scattering, Parallel Ensemble Classifiers and Nonlinear Fusion.

Vahid Hajihashemi, Abdorreza Alavi Gharahbagh, Pedro Miguel Cruz, Marta Campos Ferreira, José J. M. Machado, João Manuel R. S. Tavares

Sensors, 2022

Deep anomaly detection in hyperspectral images based on membership maps and object area filtering.

Mahdi Yousefan, Hamid Esmaeili Najafabadi, Hossein Amirkhani, Henry Leung, Vahid Hajihashemi

Expert Syst. Appl., 2022

2021

A novel high-efficiency holography image compression method, based on HEVC, Wavelet, and nearest-neighbor interpolation.

Vahid Hajihashemi, Hamid Esmaeili Najafabadi, Abdorreza Alavi Gharahbagh, Henry Leung, Mahdi Yousefan, João Manuel R. S. Tavares

Multim. Tools Appl., 2021

Novel Time-Frequency Based Scheme for Detecting Sound Events from Sound Background in Audio Segments.

Vahid Hajihashemi, Abdorreza Alavi Gharahbagh, Hugo S. Oliveira, Pedro Miguel Cruz, João Manuel R. S. Tavares

Proceedings of the Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications, 2021

2019

Hybrid Algorithms of Whale optimization algorithm and k-nearest neighbor to Predict the liver disease.

Vahid Hajihashemi, Zeinab Hassani, Iman Sahraei Dehmajnoonie, Keivan Borna

EAI Endorsed Trans. Context aware Syst. Appl., 2019

Perceptual evaluation of speckle noise reduction techniques for phase shifting holograms.

Elsa Susana Reis Fonseca, Paulo Torrão Fiadeiro, Vahid Hajihashemi, Marco V. Bernardo, António M. G. Pinheiro, Manuela Pereira

Proceedings of the 11th International Conference on Quality of Multimedia Experience QoMEX 2019, 2019

2014

An improved genetic algorithm with a local optimization strategy and an extra mutation level for solving traveling salesman problem.

Keivan Borna, Vahid Haji Hashemi

CoRR, 2014