ORCID iD

Skills and Experiences (Deep Learning, AI, and Programming Languages)

a) Statistical Machine Learning Algorithms: I have expertise on Python/R, scikit-learn, pandas, grid searching, random searching and Bayesian Optimization techniques of machine learning algorithms, such as, Decision Tree, Random Forest, SVM, XGBoost, AdaBoost, MLP, and Different Classification and Clustering Algorithms, KNN, Baysen Methods, Cluster Analysis, Pattern Recognition, Multi-dmentional Data Analysis and Visualization.

b) Deep Learning Algorithms: DNN, CNN, Residual Network, Temporal Convolutional Network, Dense Network, Convolutional Encoder-Decoder, Multimodal Learning, Generative Adversarial Networks, Transfer Learning, Unsupervised Learning, Transformer Network, Language Model, Self-Atten Network, Vision Transformer, Reinforcement Learning, and Explainable AI.

c)     I am experienced in using Python, OpenCV, TensorFlow, PyTorch, R, and Keras on the Linux platform for above deep learning algorithm implementation.

d)    I have expertise on Python assisted GPU programming for Big Data Processing, Data Pipelining, including Data Analytics, engineering pipelines (data aggregation and processing, database management, analysis, and visualisation).

e) I have strong expertise on Java, C/C++, Java, .NET, MATLAB, SQL, and PHP.

Responses Experiences

I have 10.5 years of academic-industrial research collaboration, team work, team management in Australia, Bangladesh, Canada, and Japan as summarized below:

a)     Research Fellow in Machine Learning (Jan 2024 to Dec 2024), Queensland University of Technology, Brisbane, Australia. Design Machine Learning, Deep Learning, Transfer Learning Algorithms for Big Data processing, including other Computer Science applications.

b)    Researcher in a Multidisciplinary Collaborative Research Team, University of Rajshahi, Bangladesh [August 2021 to date]. We are doing multidisciplinary research, such as medical decision support systems, cybersecurity and information retrieval, superconductive material discovery, and computational bioinformatics.

c)     Research Assistant in Machine Learning/Signal Processing to Prof. Kuldip K. Paliwal, Griffith University, Australia (Oct 2017 to April 2021) [3.5 Years, Academic Research].

Research Title: Design Machine Learning Algorithms for Speech Enhancement.

My Role in the Research: During my candidature (3.5 years), my main research focus was investigating machine learning algorithms for signal processing and image processing applications.

d)    Research Assistant to Prof. Wei-Ping Zhu, Dept. of Electrical and Computer Engineering, Concordia University, Montreal, Canada (May 2013 to April 2016) [3 Years, Industrial Collaborative Research Project]. I was working as a Researcher and Algorithm Developer at CRD Projects:

    i) Subtitle Failure Detection for Real-time TV Broadcasting Channel using Speech Activity Detection (May 2013-Dec 2013) for Miranda Technology (Canada).

      ii) Single and Multi-Microphone Techniques of Speech Enhancement for Reliable Voice Communications under Adverse Acoustic Conditions--Part I (Mar  2014-Mar 2015) and Part II (May 2015-Feb 2016) sponsored by Microsemi (Canada).

e) Research Assistant to Prof. M. K. I Molla, University of Rajshahi, Bangladesh, and Prof. K. Hirose, Tokyo University, Japan (Mar 2010-Mar 2012) [2 Years, Academic Collaborative Research]: I was working on a collaborative research project in the areas of Speech Enhancement, Pitch Estimation, Speech Activity Detection.

f) PhD Researcher (2017-2021), School of Engineering and Built Environment, Griffith University, Brisbane,Australia.

g) M.Sc Researcher: Dept. of Computer Science & Engineering, University of Rajshahi, Bangladesh (May, 2008 to January 2010).

h) M.A.Sc Researcher: Dept. of Electrical & Computer Engineering, Concordia University, Canada (May 2013 to September 2015).

1. S. K Roy, “Workshop on Signal Transformation Techniques,” Organized by Dept. of Statistics, University of Rajshahi, Bangladesh, May 2012.
2. S. K Roy, “Workshop on Time Series Analysis and Outlier Detection using Data Adaptive Time-domain Filtering Techniques,” Organized by Dept. of Statistics, University of Rajshahi, Bangladesh, Dec 2012.

Reviewer Experiences

1. IEEE Access
2. IEEE Transaction on Audio, Speech, and Music Processing
3. IEEE Transactions on Instrumentation & Measurement
   
4. Speech Communication.
5. Journal of the Franklin Institute.
6. IET Journal  on Signal Processing.
7. ETRI Journal
   
8. IEEE Co-Sponsored Conferences,  namely DSP, ICAEE, IC4ME2.
   

Research Interests

  Design Machine/Deep learning algorithms for big data analysis, including medical image analysis, wearable sensor data analysis, Cybersecurity, and speech intelligibility       enhancement.

Supervisor Experiences

1. Capstone Project: Human Robot Interaction through Voice Command (Jointly with Dr. Wei-Ping Zhu, Dept. of ECE, Concordia University, Canada) (Awarded as the best Capstone project 2013-14).
2. Undergraduate Project: 9 Projects at Dept. of Computer Science & Engineering, University of Rajshahi, Bangladesh (2010-2012; 2016-2017)

Awards & Scholarships

1.      Awarded Award of Excellence in the Research Thesis from Dean, Griffith Graduate Research School, Griffith University, Australia, May 2021. This award is given to a very high standard PhD thesis according to the unanimous agreement of thesis examiners.   

2.      Considered for the Chancellor’s Medal for Excellence in the PhD Thesis 2021, Griffith University, Australia.

3.      Best Supervisor Award from Dept. of Electrical and Computer Engineering, Concordia University, Montreal, Canada for supervising capstone project for 2013-2014 entitled “Human-Robot Communication Through Voice Command”.

4.      Won the First Prize in Scientific Poster Contest for the paper entitled “Single Channel Speech Enhancement Using Subband Iterative Kalman Filter” (accepted at IEEE ISCAS 2016, Montreal, Canada) organized by ReSMIQ Quebec, Canada (May 2016).

5.      Griffith University International Postgraduate Research Scholarship (GUIPRS), Australia (Oct. 2017 to Oct. 2020 and Oct. 2020 to April 2021 (6 Month Extension)) (Cover full tuition fees for PhD study and health insurance).

6.      Griffith University Postgraduate Research Scholarship (GUPRS), Australia (Oct. 2017 to Oct. 2020 and Oct. 2020 to April 2021 (6 Month Extension)) (AUD 26, 682 per year).

7.      Griffith University Engineering (Top-Up) Scholarship, Australia, from Oct. 2017 to Oct. 2018 and Oct. 2018 to Oct. 2019 (AUD 14000 per year: renewed each year based on excellent performance in research).

8.      Griffith University Engineering LumSum Scholarship, Australia, from Oct. 2019 to Oct 2020 (AUD 14000 per year for excellent performance in research).

9.      Griffith University Engineering LumSum Scholarship, Australia, from Oct. 2020 to April 2021 (6 Month Extension) (AUD 7000 for excellent performance in research).

10.   Griffith University Engineering LumSum Scholarship, Australia, from April 2021 to June 2021 (AUD 3000 for finishing Post PhD activities after Graduation).

11.   Griffith University Conference Travel Grant, Australia, (Covers conference registration fee, return air fare, and hotel accommodations) for presenting a conference paper accepted in IEEE ICSPCS 2018, Cairns, Australia.

12.   GGRS-IEIS Conference Travel Grant, Griffith University, Australia, (AUD 1500) for presenting a conference paper accepted in IEEE ISCAS 2020, Spain.

13.   Griffith University Recreation Allowance, Australia, Oct. 2017 (AUD 1200 one-time allowance upon arrival for PhD study).

14.   Graduate Research Fellowship (GSSP) Award from Concordia University, Montreal, Canada (CAD 10, 000 per year from May 2013 to Dec 2015).

15.   International Tuition Fee Remission Award from Concordia University, Montreal, Canada (May 2013 to Dec 2015).

16.   NSERC-CRD Research Assistant Grant from Concordia University, Montreal, Canada (CAD 8, 000 per year from May 2013 to April 2016).

17.   Teaching Assistance (TA) Grant from Concordia University, Montreal, Canada (May 2015 to Dec 2015).

18.   Conference Travel Grant from Concordia University, Montreal, Canada for presenting a paper accepted in IEEE CCECE 2014, Toronto, Canada.

19. Merit Scholarship from University of Rajshahi, Bangladesh for B. Sc. (Honours) result with distinction.

Country Visited

Canada, Qatar, Australia, Singapore, Turkey.

Membership and other Community Work

1. IEEE Membership (Signal Processing Society, Circuits and Systems Society).
2. International Speech Communication Association (ISCA). 
3. Asia Pacific Signal and Information Processing Association (APSIPA)
   
4. Academic Committee Member, Dept. of Computer Science & Engineering, University of Rajshahi, Bangladesh (Since 2010, now on a study leave)
5. International Speech Communication Association (ISCA) (Since 2020).
   
6. Technical Consultant of Network Extension and Office Automation Project of University of Rajshahi, Bangladesh (Mar 2010-Mar 2013, Funded by: World Bank).
7. Programming Contest, Cultural and Event Management Committee Member, Dept. of Computer Science & Engineering, University of Rajshahi, Bangladesh (Since 2010, now on a study leave).