The Faculty of Information Technology Held an Online Academic Seminar

The Faculty of Information Technology of Macau University of Science and Technology held an online academic seminar on July 28, 2021 (Zoom ID: 95785981417). We invited 3 professors to be the guest speakers of this seminar.

1. Speaker: Professor Lin Xiaodong, University of Guelph, Canada

Title: File Carving - Challenges and Research Directions 


It is not unusual that we accidentally deleted an important file or lost files after a computer crash. Also, it is very often that criminals try to hide their wrongdoings by deleting digital evidences (e.g., downloaded illicit images or stolen confidential data or trade secret), which could indict them in the court. Therefore, it has been in high demand to recover deleted or lost files, which is the most common and widely used digital forensic investigation technique. In this talk, we will discuss technological advances in file recovery techniques. Specifically, we look at file carving techniques, which is the process of reconstructing files based solely on their contents. Also, we identify and discuss major challenges and research issues to be addressed in the development of file carving solutions. For example, privacy concerns may keep many people from assisting with an investigation or seeking professional assistance since they are afraid of embarrassment and humiliation, especially, when sensitive data are involved.


Xiaodong Lin received the PhD degree in Information Engineering from Beijing University of Posts and Telecommunications, China, and the PhD degree (with Outstanding Achievement in Graduate Studies Award) in Electrical and Computer Engineering from the University of Waterloo, Canada. He is currently a Professor of Computer Science in the School of Computer Science, University of Guelph, Canada. His research interests include wireless communications and network security, computer forensics, software security, and applied cryptography. Dr. Lin serves as an Associate Editor for many international journals. He has served or is serving as a guest editor for many special issues of IEEE, Elsevier and Springer journals, and as a symposium chair or track chair for IEEE/ACM conferences. He also served on many program committees of international conferences. He was Chair of Communications and Information Security Technical Committee (CISTC) – IEEE Communications Society (2016-2017). He is a Fellow of the IEEE.

2. Speaker: Prof. Fu Songnian, Guangdong University of Technology

Title: Machine learning techniques in high-speed fiber optic communication systems


In order to meet the growing demand of network applications, the new generation of fiber optic communication system is developing toward ultra-high speed, high capacity and dynamic flexibility. With the development of artificial intelligence technology, machine learning technology is gradually applied to high-speed fiber optic communication systems due to its advantages of autonomous feature extraction and mapping, intelligent response, and less human intervention. This presentation will share the research progress of machine learning technology in the direction of optical performance monitoring and nonlinear equalization of digital coherent fiber optic communication systems and discuss the development trend of related technologies.


Songnian Fu is a professor and doctoral supervisor in the School of Information Engineering of Guangdong University of Technology. He received his bachelor, master and doctoral degrees from Xiamen University and Beijing Jiaotong University, respectively. He has completed the National 973 Project, the National 863 Project, the Ministry of Science and Technology's Special Project for the Development of Major Scientific Instruments, the Natural Science Foundation and the Ministry of Education's Fund for Returnees to China. He is currently a senior member of IEEE, a member of the Optical Communication and Information Network Technology Working Committee of the Chinese Society of Optical Engineering, and a member of the editorial board of Applied Optics, an optical communication journal of the Optical Society of America.

3. Speaker: Prof. Cui Chunyi, Dalian Maritime University

Title: Multi-objective holistic decision making for energy pile system design using ontology based multi-domain knowledge orchestration


Traditional way of designing energy pile system is mostly single domain / objective oriented, which lacks means to coherently consider different relevant factors across domains. The cost for life cycle design, construction and maintenance, return of investment, CO2 emission related sustainable requirements and so on also need to be considered in a systematic manner along with the main functional design objective for loading capacity and robustness. This talk presents a novel multi-objective holistic approach for energy pile system design using ontology based multi-domain knowledge orchestration, which can holistically provide the designers with across domain factors regarding financial, safety and environmental impact, for smart and holistic consideration during the early design stage. A prototypical ontology-based decision tool has been developed aiming at the holistic optimization for energy pile system by combining ontology and SWRL rules. A case study was conducted to illustrate the details on how to leverage knowledge query to provide a series of design alternatives autonomously through considering different design parameters. The method has demonstrated its practicability and scientific feasibility, it also shows the potential to be adopted and extended for other domains when dealing with multi-objective holistic design making.


Prof. Cui Chunyi received his PhD degree in Geotechnical Engineering from Dalian University of Technology in 2007, and was engaged in postdoctoral research at the State Key Laboratory of Offshore and Coastal Engineering of Dalian University of Technology and the Key Laboratory of Ministry of Education of Beijing University of Technology in 2009 and 2013, respectively. He is also a member of the Energy Subsurface Structure and Engineering Committee of the Chinese Civil Engineering Society, a member of the Youth Engineering Committee of the Geotechnical and Geotechnical Engineering Branch, a member of the Disaster Prevention and Mitigation Engineering Branch of the Chinese Society of Earthquake Engineering, a director of the Liaoning Civil Engineering and Construction Society, a director of the Liaoning Mechanical Society, an expert of the National Natural Foundation of China, an expert of the Postdoctoral Fund of China, and an expert of the Award of the Chinese Society of Ocean Engineering. He is also a member of Journal of Sound and Vibration, International Journal for Numerical and Analytical Methods in Geomechanics, Engineering Analysis with Boundary Elements, Computers and Geomechanics, Soil dynamics and Earthquake Engineering, Journal of Geotechnical Engineering, Journal of Vibration Engineering, Chinese Journal of Highway Engineering and other 10 international journals and first-class journals in China. He has completed 3 National Natural Science Foundation of China (NSFC) projects and 1 Chinese Postdoctoral Science Foundation (CPSF) project, and other more than 30 research projects. He has published more than 90 papers including more than 50 papers in SCI and EI journals and 1 highly cited paper in ESI, 2 professional books and 1 textbook, more than 30 granted and filed invention patents, and 5 authorized software copyrights.

Fig. 1 Presentation of Prof. Lin Xiaodong

Fig. 2 Presentation of Prof. Fu Songnian

Fig. 3 Presentation of Prof. Cui Chunyi