Hamed Vahdat-Nejad

Associate Professor, IEEE SM’19 Address & Contact Information Address: Pervasive and Cloud Computing Laboratory, Department of Computer Engineering and Information Technology, University of Birjand, Avini Blvd., Birjand, Iran Postal code: 9717434765 Email: vahdat.nejad [at]  gmail.com, vahdatnejad [at]  birjand.ac.ir Web: http://perlab.birjand.ac.ir/vahdatnejad/ Google Scholar Citations

Education & Research

Current Research Interests

• Natural language processing
• Internet of things
• Ubiquitous computing

Teaching Experience

• B.Sc.:
  • Data Structures
  • Discrete Mathematics
  • Introduction to Databases
  • Design and Analysis of Algorithms
  • Concurrent Programming
  • Advanced Algorithms
• M.Sc.:
  • Software Architecture
  • Distributed Systems
  • Pervasive Computing
  • Cloud Computing
  • Parallel Algorithms

Position in Events

Activities

• Associate Editor of Elsevier Computers and Electrical Engineering
• Guest editor of the Special Issue on “New Generation Computing” of the “Journal of Computing and Security”
• Guest editor of the Special Issue on “Pervasive and Context-Aware Middleware” of the “Elsevier Computers and Electrical Engineering journal” (IF = 0.928)
• TPC member of ICCKE, IWCMC, ISIEA, ICCIT-WCS, PerCAM, ChinaCOM, MELECON 2014, COGNITIVE 2014, IBMSGS 2015, EMERGING 2015, ICACCI, ADMMET 2015, ICCME 2015, CoCoNet 15, AR4MET 2016, REEGETECH 2016.
• Senior member of IACSIT (International Association of Computer Science and Information Technology)
• Member of the International Program Committee of AICIT (International Association for Information, Culture, Human and Industry Technology) international conference series.
• Founder of the Pervasive & Cloud computing Lab at University of Birjand

Publications

• Books
  • Hamed Vahdat-Nejad, Tahereh Tamadon, Fatemeh Salmani, Zeynab Kiani-Zadegan, Sajedeh Abbasi, and Fateme-Sadat Seyyedi. “A Survey on Crowdsourcing Applications in Smart Cities.” In the book entitled: Recent Innovations in Artificial Intelligence and Smart Applications, Springer (2022): 239-253.
  • Hamed Vahdat-Nejad, Zahra Mazhar Farimani, Arezoo Tavakolifar, “Social Internet of Things and New Generation Computing- A Survey“, In the book entitled: “Toward Social Internet of Things (SIoT): Enabling Technologies, Architectures and Applications“, Springer (2020)
  • MB Patel, C Bhatt, Hamed Vahdat-Nejad, HB Patel, “Smart city based on MQTT using wireless sensors“, In the book entitled: “Protocols and Applications for the Industrial Internet of Things“, IGI (2018)
  • Sepideh Poorejbari, Hamed Vahdat-Nejad, Wathiq Mansoor, “Diabetes Patients Monitoring by Cloud Computing“, Book Chapter, In the book entitled: “Cloud Computing System and Applications in Healthcare“, IGI (2017)
  • Hamed Vahdat-Nejad, “Context-Aware Middleware: A Review“, Book Chapter, In the book entitled: “Context in Computing“, Springer (2014)
  • Michael O’Grady, Hamed Vahdat-Nejad, et al. “Evolving Ambient Intelligence.” Springer (2013)
• Journal Papers
  • Faezeh Azizi, Hamed Vahdat-Nejad, and Hamideh Hajiabadi. “Temporal Analysis of Topic Modeling Output by Machine Learning Techniques,” Springer International Journal of Data Science and Analytics, 2024.
  • Ehsanullah Zia, Hamed Vahdat-Nejad, Mohammad Ali Zeraatkar, Javad Hassannataj Joloudari, Seyyed Ali Hoseini, “3ENB2: End-to-End EfficientNetB2 Model with Online Data Augmentation for Fire Detection,” Springer Signal, Image and Video Processing, 2024.
  • Sajedeh Abbasi, Hamed Vahdat-Nejad, and Hossein Moradi. “Harnessing trustable crowdsourcing power for flood disaster evaluation.” Natural Hazards, Springer (2024): 1-19.
  • Faezeh Azizi, Hamideh Hajiabadi, Hamed Vahdat-Nejad, and Mohammad Hossein Khosravi. “Detecting and analyzing topics of massive COVID-19 related tweets for various countries.” Computers and Electrical Engineering, Elsevier, Vol 106 (2023): 108561.
  • Hamed Vahdat-Nejad, Tahereh Mohammadi, and Wathiq Mansoor. “CATMI: Context-Aware Traffic Management at Autonomous Un-Signalized Intersections.” International Journal of Intelligent Transportation Systems Research, Springer (2023): 1-14.
  • Mohadese Jamalian, Hamed Vahdat-Nejad, Wathiq Mansoor, Abigail Copiaco, and Hamideh Hajiabadi. “Analyzing the Effect of COVID-19 on Education by Processing Users’ Sentiments” Big Data and Cognitive Computing Vol 7, no. 1 (2023): 28.
  • Mahdi Hajiabadi, Hamed Vahdat-Nejad, and Hamideh Hajiabadi. “COVID-19 and tourism: extracting public attitudes.” Current Issues in Tourism, Taylor & Francis (2022).
  • Hamid Bahadori, Hamed Vahdat-Nejad, and Hossein Moradi. “CrowdBIG: crowd-based system for information gathering from the earthquake environment.” Natural Hazards, Springer (2022).
  • Hamed Vahdat-Nejad. “CAMID: architectural support of middleware for multiple-domain ubiquitous computing and IoT.” The Journal of Supercomputing, Springer, (2022).
  • Zongbao Ma, Mohammad Hossein Nejat, Hamed Vahdat-Nejad, Behnam Barzegar, and Saeed Fatehi. “An Efficient Hybrid Ranking Method for Cloud Computing Services Based On User Requirements.” IEEE Access, Vol 10, (2022), 72988-73004
  • Hamed Vahdat-Nejad, Wathiq Mansoor, Sajedeh Abbasi, Mahdi Hajiabadi, Fatemeh Salmani, Faezeh Azizi, “Impact of the Internet of Things on Psychology: A Survey“, Smart Cities, Vol 5, No 3 (2022), 1193-1207.
  • Hamed Vahdat-Nejad, Faezeh Azizi, Mahdi Hajiabadi, Fatemeh Salmani, Sajedeh Abbasi, Mohadese Jamalian, Reyhane Mosafer, Hamideh Hajiabadi, and Wathiq Mansoor. “Large-Scale Twitter Mining for Extracting the Psychological Impacts of COVID-19.” International Journal of Information and Communication Technology Research, Vol 14, No. 2, (2022): 23-31.
  • Hamed Vahdat-Nejad, Fatemeh Salmani, Mahdi Hajiabadi, Faezeh Azizi, Sajedeh Abbasi, Mohadese Jamalian, Reyhaneh Mosafer, Parsa Bagherzadeh, and Hamideh Hajiabadi. “Extracting Feelings of People Regarding COVID-19 by Social Network Mining.” Journal of Information & Knowledge Management, Worldscientific, Vol 21, No 1, (2022).
  • Mohammad Hossein Nejat, Homayun Motameni, Hamed Vahdat-Nejad, and Behnam Barzegar. “Efficient Cloud Service Ranking Based on Uncertain User Requirements.” Cluster Computing, Vol 25, no. 1 (2022): 485-502
  • Mohammad Hossein Nejat, Homayun Motameni, Hamed Vahdat-Nejad, “An Integrated Optimal Method for Cloud Service Ranking“, Turkish Journal of Electrical Engineering & Computer Sciences Vol 29.No 7 (2021): 2983-3003.
  • Elham Asani, Hamed Vahdat-Nejad, and Javad Sadri. “Restaurant recommender system based on sentiment analysis.” Machine Learning with Applications, Vol 6 (2021): 100114
  • Zahra Abbasi-Moud, Hamed Vahdat-Nejad, and Javad Sadri. “Tourism Recommendation System Based on Semantic Clustering and Sentiment Analysis.” Expert Systems with Applications 167, Elsevier (2021).
  • Hadi Ghasemian, Fahimeh Ghasemian, and Hamed Vahdat-Nejad. “Human urbanization algorithm: A novel metaheuristic approach.” Mathematics and Computers in Simulation, Elsevier (2020).
  • Homa Radgohar, Hamed Vahdat-Nejad, and Saber Mohammadzadeh Rezaie. “Infant’s growth and nutrition monitoring system.” SN Applied Sciences, Springer, Vol 2, no. 9 (2020).
  • Hamed Vahdat-Nejad, Hossein Khosravi-Mahmouei, Mohammad Ghanei-Ostad, and Azam Ramazani, “Survey on Context-Aware Tour Guide Systems.” IET Smart Cities, Vol 2, No 1, (2020).
  • Hamed Vahdat-Nejad, Shaghayegh Izadpanah, and Shaghayegh Ostadi-Eilaki, “Context-aware Cloud-based Systems: Design Aspects.”, Cluster Computing, (22)5, 11601-17, Springer (2019): 1-17.
  • Hamed Vahdat-Nejad, Elham Asani, Zohreh Mahmoodian, M. H. Mohseni, “Context-aware computing for mobile crowd sensing: A survey“, Future Generation Computer Systems, Elsevier (Q1) (2019).
  • Hamed Vahdat-Nejad, Mahdi Kari, “Architecture design of a context-aware recommender system in the tourism domain“, Computer modeling and new technologies, 23. 1, (2019)
  • Hamed Vahdat-Nejad, Mahsa Asef, “Architecture design of the air pollution mapping system by mobile crowd sensing“, IET Wireless sensor systems, IET (2018).
  • Mahdi Kherad, Hamed Vahdat-Nejad, and Morteza Araghi, “Trasfugen: Traffic assignment of urban by an approximation fuzzy genetic algorithm“, International Journal of Modeling, Simulation, and Scientific Computing, World Scientific, Vol. 9, No. 4 (2018).
  • Hamed Vahdat-Nejad, Mojtaba Dehghan-Manshadi, and Mahdi Kherad, “A fuzzy genetic approach for velocity estimation in wind-tunnel“, Soft Computing, Springer, Vol 23, No 10, (2019).
  • Hamed Vahdat-Nejad, Mohammad Sadeq Navabi, and Hosein Khosravi-Mahmouei, “A context-aware museum-guide system based on cloud computing“, International Journal of Cloud Applications and Computing (IJCAC) 8.4 (2018): 1-19.
  • Mohammad Ghane’i-Ostad, Hamed Vahdat-Nejad, Majid Abdolrazzagh-Nezhad, “Detecting overlapping communities in LBSNs by fuzzy subtractive clustering“, Social Network Analysis and Mining, Springer (2018), 1-11.
  • Hamed Vahdat-Nejad, Shaghayegh Ostadi Eilaki, and Shaghayegh Izadpanah, “Towards a Better Understanding of Ubiquitous Cloud Computing“, International Journal of Cloud Applications and Computing (IJCAC), 8.1 (2018): 1-20.
  • Mostafa Behi, , Mohammad GhasemiGol, and Hamed Vahdat-Nejad, “A New Approach to Quantify Network Security by Ranking of Security Metrics and Considering Their Relationships“, International Journal of Network Security, 20.1 (2018): 141-148.
  • Shaghayegh Izadpanah, Hamed Vahdat-Nejad, and Hamid Saadatfar, “A Framework for ranking ubiquitous computing services by AHP analysis“, International Journal of Modeling, Simulation, and Scientific Computing, World Scientific (2017), Vol 9, No 4, (2018).
  • Azam Ramazani, Hamed Vahdat-Nejad, “CANS: Context-Aware Traffic Estimation and Navigation System“, IET Intelligent Transport Systems, IET, 2017
  • Mojtaba Dehghan-Manshadi, Hamed Vahdat-Nejad, Mohammad Kazemi-Esfeh, Muhammed Alavi, “Speed Detection in Wind-tunnels by Processing Schlieren Images“, International Journal of Engineering, 2016
  • Hamed Vahdat-Nejad, Massimo Panella, Gaetan Rey, “Introduction to the special section on pervasive computing“, Computers and Electrical Engineering, Elsevier, 2016
  • Hussein Shirvani, Hamed Vahdat-Nejad, “A New Scheme for Storage and Retrieval of Shared Text Files“, Journal of Computing and Security, University of Isfahan, 2016
  • Hussein Shirvani, Hamed Vahdat-Nejad, “Storing Shared Documents that are Customized by Users in Cloud Computing“, Journal of Computing, Springer Vienna, 2016
  • Hamed Vahdat-Nejad, Azam Ramazani, Tahereh Mohammadi ,Wathiq Mansoor, “A Survey on Context-Aware Vehicular Network Applications ,”Vehicular Communications, Elsevier, 2016
  • Hamed Vahdat-Nejad, Tor-Morten Grønli, “Introduction to the Special Issue on Pervasive and Context-Aware Middleware“, Computers and Electrical Engineering, Elsevier, 2015
  • Soroor Mohammadi Bezanaj, Hamed Vahdat-Nejad, “A Comparative Study on Quality of Privacy in Pervasive Computing in Health-care Systems“, Journal of Advances in Computer Research (JACR), Vol. 6, No. 2, 2015
  • Hamed Vahdat-Nejad, Kamran Zamanifar, Nasser Nematbakhsh, “A New Community-Based Context Distribution Approach for Large-Scale Pervasive Systems“, International Journal of Ad Hoc and Ubiquitous Computing, Inderscience, 2013
  • Hamed Vahdat-Nejad, Kamran Zamanifar, Nasser Nematbakhsh, “Context-Aware Middleware Architecture for Smart Home Environment“, International Journal of Smart Home, SERSC, Vol. 7, No. 1, 2013
  • Hamed Vahdat-Nejad, Mohammad Ali Nematbakhsh, Kamran Zamanifar, Nasser Nematbakhsh, “Context Driven Concept Based Image Retrieval“, International Journal of Information Science and Management, Vol. 9, No. 2 (2011)
  • Hamed Vahdat-Nejad,  Behrouz Tork-Ladani, Kamran Zamanifar, Nasser Nematbakhsh, “A Novel Algorithm for Impulse Noise Classification in Digital Images”, International Review on Computers and Software,Vol. 4, No. 6 (2009): 627-632
  • Hamed Vahdat-Nejad, Kamran Zamanifar, “A New Randomized Algorithm for Handling Scheduling Conflicts in Grids”  Advances in Electrical and Computer Engineering (Stefan cel Mare University of Suceava),Vol. 9, No. 3 (2009).

• Conference Papers
  • Narges Abbasi, Hamed Vahdat-Nejad, Wathiq Mansoor, and Fatemeh Salmani. “Extracting Drug-Related Tweets in COVID-19 Pandemic.” 5th International Conference on Signal Processing and Information Security (ICSPIS), pp. 103-106. IEEE, 2022.
  • Sajedeh Abbasi, Hamed Vahdat-Nejad, and Hamideh Hajiabadi. “Trustable Mobile Crowd Sourcing for Acquiring Information from a Flooded Smart Area.” 6th International Conference on Smart City, Internet of Things and Applications, Iran, IEEE (2022).
  • Faezeh Azizi, Hamed Vahdat-Nejad, Hamideh Hajiabadi and M. H. Khosravi, “Extracting Major Topics of COVID-19 Related Tweets,” 11th International Conference on Computer Engineering and Knowledge (ICCKE), 2021, pp. 25-29, doi: 10.1109/ICCKE54056.2021.9721440
  • Fatemeh Salmani, Hamed Vahdat-Nejad and Hamideh Hajiabadi, “Analyzing the Impact of COVID-19 on Economy from the Perspective of User’s Reviews,” 11th International Conference on Computer Engineering and Knowledge (ICCKE), 2021, pp. 30-33, doi: 10.1109/ICCKE54056.2021.9721495
  • Hamed Vahdat-Nejad, Hamid Bahadori, Ali Abiri. “Information Gathering of Earthquake Disasters by Mobile Crowd Sourcing in Smart Cities.” 5th International Conference on Internet of Things and Applications (IoT 2021). IEEE, 2021.
  • Hamed Vahdat-Nejad, Zahra Abbasi-Moud, Seyed Abolfazl Eslami, and Wathiq Mansoor. “Survey on Context-Aware Healthcare Systems.” 11th Annual Computing and Communication Workshop and Conference (CCWC), pp. 1190-1196. IEEE, 2021.
  • Elham Asani, Hamed Vahdat-Nejad, Saeed Hosseinabadi, and Javad Sadri. “Extracting User’s Food Preferences by Sentiment Analysis.” 8th Iranian Joint Congress on Fuzzy and Intelligent Systems (CFIS), IEEE, 2020.
  • Zahra Abbasi-Moud, Hamed Vahdat-Nejad, and Wathiq Mansoor. “Detecting Tourist’s Preferences by Sentiment Analysis in Smart Cities.”  IEEE Global Conference on Internet of Things (GCIoT), IEEE, 2019.
  • Reza Rahnama-ye- Moqaddam, Hamed Vahdat-Nejad,  Designing A Pervasive, Eye Movement-based System for ALS and Paralyzed Patients, ICCKE 2015, Mashhad, Iran: IEEE, 2015
  • Azam Ramazani, Hamed Vahdat-Nejad, A New Context-Aware Approach to Traffic Congestion Estimation, ICCKE 2014, Mashhad, Iran: IEEE, 2014
  • Hussein Shirvani, Hamed Vahdat-Nejad, A New Efficient Approach to Store Data in a Cloud Server, 4th International Workshop on Pervasive and Context-Aware Middleware, Dubai, UAE: ACM, 2014
  • Sepideh Poorejbari, Hamed Vahdat-Nejad, An Introduction to Cloud-Based Pervasive Healthcare Systems, 4th International Workshop on Pervasive and Context-Aware Middleware, Dubai, UAE: ACM, 2014
  • Hamed Vahdat-Nejad, 3 rd International Workshop on Pervasive and Context-Aware Middleware, Fourth International Joint Conference on Ambient Intelligence, Dublin, Ireland, Springer,2013
  • Forough Sahafipour, Reza Javidan, Hamed Vahdatnejad, Mehdi Kadivar, “Hyrid Interactions in Pervasive Computing Settings”, International Workshop on Context Aware Middleware for Ubiquitous Computing Environments, St. Petersburg, Russia: IEEE Computer Society, 2011
  • Najmeh Ahmadian, Mohammad Ali Nematbakhsh, Hamed Vahdat-Nejad, “A Context Aware Approach to Semantic Query Expansion”, 7th International Conference on Innovations in Information Technology”, UAE: IEEE Computer Society, 2011
  • Hamed Vahdat-Nejad, Kamran Zamanifar, Nasser Nematbakhsh, “A new approach to context distribution in large-scale environments” International Conference on Trends in Information Technology and Applications”. UAE: IEEE Computer Society, 2010
  • Hamed Vahdat-Nejad, Nasser Nematbakhsh. “An Ontology based resource scheduling scheme in grids.” International Conference on Computer and Electrical Engineering. Thailand: IEEE Computer Society, 2008
  • Hasan Ebrahimi, Ahmad-Reza Naghsh-Nilchi, Hamed Vahdat-Nejad. “A New Approach to Motion Vector Estimation.” International Conference on Computer and Electrical Engineering. Thailand: IEEE Computer Society, 2008
  • Hamed Vahdat-Nejad, Reza Monsef. “Static parallel job Scheduling in Computational Grids.” International Conference on Computer and Electrical Engineering. Thailand: IEEE Computer Society, 2008
  • Hamed Vahdat-Nejad, Reza Monsefi, Hossein Deldari. “Distributed resource scheduling in grid computing using fuzzy approach.” 3rd Conference on Information and Knowledge Technology. Mashhad, 2007
  • Hamed Vahdat-Nejad, Hosneyeh Zolfaghari, Reza Monsefi. “Parallelization of Fuzzy-Classical Filters For Image Noise Reduction.” International Conference on Computational Intelligence for Measurement Systems and Applications. Italy: IEEE Computer Society, 2007
  • Hamed Vahdat-Nejad, Reza Monsefi, Mahmoud Naghibzadeh. “A New Fuzzy Algorithm for Global Job Scheduling in Multiclusters and Grids.” International Conference on omputational Intelligence for Measurement Systems and Applications. Italy: IEEE Computer Society, 2007
  • Hamed Vahdat Nejad, Hameed-Reza Pourreza, Hasan Ebrahimi. “A Novel Fuzzy Technique for Image Noise Reduction.” Proceedings of World Academy of Science, Engineering and Technology. Czech Republic, 2006.
  • Hamed Vahdat Nejad, Hossein Deldari. “A Parallel Quadtree Approach for Image Compression using Wavelets.” Proceedings of World Academy of Science, Engineering and Technology. Czech Republic, 2006
  • Hamed Vahdat Nejad, Mohammad Hossien Yaghmaee, Hamid Tabatabaee. “Fuzzy TCP: Optimizing TCP Congestion Control” Asia Pacific Conference on communication. South Korea: IEEE Computer Society, 2006