Sheikh Abujar

Sheikh Abujar

Ph.D. Candidate, Department of Computer Science
University of Alabama at Birmingham
Machine Learning · Healthcare AI

SREB State Doctoral Scholar (selected 2026) · UAB Blazer Fellow (2022–2024) · IEEE IRI Best Student Paper Award (2026)

Birmingham, Alabama
Phone: (321) 367-4199
Email: sabujar@uab.edu
Google Scholar  ·  GitHub  ·  LinkedIn  ·  ORCID

U.S. Permanent Resident



About

I am a Ph.D. candidate in Computer Science at the University of Alabama at Birmingham, advised by Prof. Chengcui Zhang, with graduation expected in Spring 2027. I develop adaptive machine-learning methods for heterogeneous temporal and multimodal data. My research connects multivariate time-series forecasting with healthcare AI, including longitudinal clinical prediction, multimodal fusion, and medical image analysis.

I am on the academic job market, seeking tenure-track assistant professor positions beginning Fall 2027.

I bring university teaching experience across core computer science and AI courses, experience developing curricula, and a record of mentoring undergraduate research through peer-reviewed publication. I founded and led the DIU NLP & ML Research Lab (2017–2021) and previously interned with the Bixby ML Team at Samsung Research America.


Research Interests

My research develops adaptive machine-learning methods for heterogeneous temporal and multimodal data. My primary methodological work focuses on multivariate time-series forecasting through signal-aware representations, learned contextual encodings, adaptive mixture-of-experts routing, and directed cross-variable dependency learning. In a complementary research direction, I develop healthcare AI methods for longitudinal clinical prediction, multimodal fusion, LLM-derived contextual representations of clinical narratives, and medical image analysis.


Education

University of Alabama at Birmingham

Birmingham, Alabama, USA

Ph.D. in Computer Science (Fall 2022–Spring 2027 (expected))

Advisor: Prof. Chengcui Zhang.

Jahangirnagar University

Savar, Bangladesh
M.S. in Computer Science

Daffodil International University

Dhaka, Bangladesh
B.Sc. in Computer Science and Engineering


Honors and Awards

SREB State Doctoral Scholars Program Fellowship (Doctoral Award) (2026)

Best Student Paper Award, IEEE IRI 2026 (2026)

IEEE TCMC Travel Grant (2026)

Barrett R. & Oceana A. Bryant Endowed Award (2026)

Trainee Travel Award and Oral Presentation Selection, AI in Nephrology Conference (2026)

UAB Blazer Fellowship (2022–2024)

Bangladesh Sweden Trust Fund Travel Grant (2022)

Best Researcher Award, Daffodil International University (2019, 2020)

Best Paper Award, IEMIS (2018)


Academic and Research Appointments

University of Alabama at Birmingham

Birmingham, Alabama

Graduate Research Assistant, Department of Computer Science (Aug. 2022–Present)

Samsung Research America

Mountain View, California

Machine Learning Research Intern, Bixby ML Team (May 2024–Aug. 2024)

Independent University, Bangladesh

Dhaka, Bangladesh

Lecturer; on approved doctoral study leave since Dec. 2021 (Feb. 2021–Present)

Apurba Technologies Ltd.

Dhaka, Bangladesh

Research Consultant, Bangla OCR (part-time) (2019–2021)

Conducted Bangla OCR data preparation and model development with the DIU NLP & ML Research Lab.

Daffodil International University

Dhaka, Bangladesh

Senior Lecturer, Department of Computer Science & Engineering (Nov. 2019–Jan. 2021)

Lecturer, Department of Computer Science & Engineering (Sept. 2017–Nov. 2019)

Founder and Research Lead, DIU NLP & ML Research Lab (2017–2021)

Britannia University

Cumilla, Bangladesh

Lecturer (Feb. 2015–Aug. 2017)


Selected Research Contributions

Adaptive Multivariate Time-Series Forecasting

Longitudinal and Multimodal Healthcare AI

Temporal Information and Low-Resource Language Technologies

Low-Resource Vision and Applied Machine Learning


Peer-Reviewed Publications

Sheikh Abujar is shown in bold. † Student work primarily mentored or co-supervised by Sheikh Abujar. See also Google Scholar.

2026

  1. S. Abujar and C. Zhang, “STAR: Spectral and Trend Adaptive Regime-Guided Forecasting for Multivariate Time Series,” 2026 IEEE International Conference on Information Reuse and Integration for Data Science (IRI), pp. 110–117, 2026. [Best Student Paper Award]
  2. M. Syed, M. Silaghi, S. Abujar, and S. Akter, “Chronofy: A Temporal-Logical Decay Architecture for Information Validity in Time-Aware RAG,” 2026 IEEE International Conference on Information Reuse and Integration for Data Science (IRI), 2026.
  3. M. Syed, M. Silaghi, S. Abujar, and S. A. Khushbu, “TOML: Transistor Operations for Machine Learning: A Physics-Grounded Energy Efficiency Framework,” Proceedings of the 39th International FLAIRS Conference (FLAIRS-39), 2026.
  4. M. Syed, S. Abujar, and S. Akter, “MCP-Edge: Extending the Model Context Protocol to Constrained IoT Devices,” 2026 IEEE Cloud Summit, pp. 80–85, 2026.
  5. M. Syed, M. C. Silaghi, S. Abujar, S. A. Khushbu, and A. E. Ahmad, “The Environmental Cost of Digital Sovereignty: Water, Energy, and Emissions Impacts of Sovereign AI Infrastructure in the Global South,” 2026 IEEE Global Humanitarian Technology Conference (GHTC) 2026.

2025

  1. C. E. Kew, T. R. Wei, S. Abujar, A. Tamhane, J. Chen, C. Taylor, and G. Agarwal, “Diagnostic Performance of Polymerase Chain Reaction in Diagnosing BK Virus-Associated Nephropathy: A Decade-Long, Single-Center Experience,” Journal of the American Society of Nephrology, vol. 36, no. 10S, Abstract PUB343, October 2025.

2024

  1. A. K. M. S. A. Rabby, P. Saha, S. Abujar, and F. Rahman, “One Model Multiple Insights: CNNs for Medical Image Classification,” 2024 IEEE International Conference on Big Data (BigData), pp. 3935–3941, 2024. †
  2. A. K. M. Rabby, H. Ali, M. M. Islam, S. Abujar, and F. Rahman, “Enhancement of bengali ocr by specialized models and advanced techniques for diverse document types,” Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision, pp. 1102–1109, 2024. †
  3. F. Zhao, C. Zhang, and S. Abujar, “Deep Body Fitness,” 2024 IEEE International Conference on Information Reuse and Integration for Data Science (IRI), pp. 67–68, 2024.

2023

  1. M. F. Hossain, M. A. A. Supto, Z. Chowdhury, H. S. Chowdhury, and S. Abujar, “BAAD: A multipurpose dataset for automatic Bangla offensive speech recognition,” Data in Brief, vol. 48, pp. 109067, 2023. †
  2. A. K. M. Masum, N. Badhon, S. M. S. I. Badhon, N. J. Ria, S. Abujar, M. M. Syed, and N. Mahmud, “Comparative evaluation of transfer learning for classification of brain tumor using MRI,” 2023 International Conference on Machine Learning and Applications (ICMLA), pp. 697–702, 2023. †
  3. F. Zhao, C. Zhang, and S. Abujar, “A multimodal approach for evaluating algal bloom severity using deep learning,” 2023 IEEE International Conference on Multimedia and Expo Workshops (ICMEW), pp. 506–509, 2023.

2022

  1. A. Bhardwaj, M. Kumar, T. Stephan, A. Shankar, M. R. Ghalib, and S. Abujar, “IAF: IoT attack framework and unique taxonomy,” Journal of Circuits, Systems and Computers, vol. 31, no. 02, pp. 2250029, 2022.
  2. M. Islam, N. J. Ria, J. F. Ani, A. K. M. Masum, S. Abujar, and S. A. Hossain, “Deep learning based classification system for recognizing local spinach,” Advances in Deep Learning, Artificial Intelligence and Robotics: Proceedings of the 2nd International Conference on Deep Learning, Artificial Intelligence and Robotics,(ICDLAIR) 2020, pp. 1–14, 2022. †
  3. J. Al Nahian, A. K. M. Masum, M. M. Syed, and S. Abujar, “An insight into the intricacies of lingual paraphrasing pragmatic discourse on the purpose of synonyms,” Bulletin of Electrical Engineering and Informatics, vol. 11, no. 5, pp. 2958–2967, 2022. †

2021

  1. S. Abujar, A. K. M. Masum, A. Bhattacharya, S. Dutta, and S. A. Hossain, “English to Bengali neural machine translation using global attention mechanism,” Emerging Technologies in Data Mining and Information Security: Proceedings of IEMIS 2020, Volume 3, pp. 359–369, 2021.
  2. M. Keya, A. K. M. Masum, S. Abujar, S. Akter, and S. A. Hossain, “Bengali context–question similarity using universal sentence encoder,” Emerging Technologies in Data Mining and Information Security: Proceedings of IEMIS 2020, Volume 2, pp. 305–315, 2021. †
  3. M. Rafidul Hasan Khan, U. S. Afroz, A. K. M. Masum, S. Abujar, and S. A. Hossain, “A deep learning approach to detect depression from Bengali text,” Emerging Technologies in Data Mining and Information Security: Proceedings of IEMIS 2020, Volume 2, pp. 777–785, 2021. †
  4. M. M. Islam, M. Islam, A. K. M. Masum, S. Abujar, and S. A. Hossain, “Abstraction based bengali text summarization using bi-directional attentive recurrent neural networks,” Emerging Technologies in Data Mining and Information Security: Proceedings of IEMIS 2020, Volume 2, pp. 317–327, 2021. †
  5. S. M. Z. Islam, Akteruzzaman, and S. Abujar, “Semantics exploration for automatic bangla speech recognition,” Emerging Technologies in Data Mining and Information Security: Proceedings of IEMIS 2020, Volume 2, pp. 171–179, 2021. †
  6. M. R. Bhuiyan, M. Keya, A. K. M. Masum, S. A. Hossain, and S. Abujar, “An approach for Bengali news headline classification using LSTM,” Emerging Technologies in Data Mining and Information Security: Proceedings of IEMIS 2020, Volume 1, pp. 299–308, 2021. †
  7. A. K. M. Masum, S. Abujar, S. Akter, N. J. Ria, and S. A. Hossain, “Transformer based bengali chatbot using general knowledge dataset,” 2021 20th IEEE International Conference on Machine Learning and Applications (ICMLA), pp. 1235–1238, 2021. †
  8. S. Abujar, S. M. S. I. Badhon, and P. Duraisamy, “Handwritten Text Recognition for Non-Latin Languages using Deep Learning-Bangla,” 2021 12th International Conference on Computing Communication and Networking Technologies (ICCCNT), pp. 1–6, 2021.
  9. N. J. Ria, J. F. Ani, M. Islam, A. K. M. Masum, T. Choudhury, and S. Abujar, “NPABT: naming pattern analysis of bengali text to detect various community using machine learning approach,” 2021 12th International Conference on Computing Communication and Networking Technologies (ICCCNT), pp. 1–6, 2021. †
  10. S. M. Saiful Islam Badhon, F. R. Rupon, M. Habibur Rahaman, and S. Abujar, “A language-independent speech data collection and preprocessing technique,” Emerging Technologies in Data Mining and Information Security: Proceedings of IEMIS 2020, Volume 2, pp. 77–86, 2021. †

2020

  1. S. Abujar, A. K. M. Masum, M. Sanzidul Islam, F. Faisal, and S. A. Hossain, “A bengali text generation approach in context of abstractive text summarization using rnn,” Innovations in Computer Science and Engineering: Proceedings of 7th ICICSE, pp. 509–518, 2020.
  2. R. K. Mamun, S. Abujar, R. Islam, K. B. M. Badruzzaman, and M. Hasan, “Bangla speaker accent variation detection by MFCC using recurrent neural network algorithm: A distinct approach,” Innovations in Computer Science and Engineering: Proceedings of 7th ICICSE, pp. 545–553, 2020. †
  3. H. Ali, M. F. Hossain, M. M. Hasan, and S. Abujar, “Covid-19 dataset: worldwide spread log including countries first case and first death,” Data in Brief, vol. 32, pp. 106173, 2020. †
  4. M. R. Bhuiyan, A. K. M. Masum, M. Abdullahil-Oaphy, S. A. Hossain, and S. Abujar, “An approach for bengali automatic question answering system using attention mechanism,” 2020 11th International Conference on Computing, Communication and Networking Technologies (ICCCNT), pp. 1–5, 2020. †
  5. M. M. Islam, A. K. M. Masum, S. Abujar, and S. A. Hossain, “Prediction of chronic insomnia using machine learning techniques,” 2020 11th International Conference on Computing, Communication and Networking Technologies (ICCCNT), pp. 1–7, 2020. †
  6. M. S. A. Pran, M. R. Bhuiyan, S. A. Hossain, and S. Abujar, “Analysis of Bangladeshi people's emotion during COVID-19 in social media using deep learning,” 2020 11th International Conference on Computing, Communication and Networking Technologies (ICCCNT), pp. 1–6, 2020. †
  7. S. M. S. I. Badhon, M. H. Rahaman, F. R. Rupon, and S. Abujar, “State of art research in Bengali speech recognition,” 2020 11th International Conference on Computing, Communication and Networking Technologies (ICCCNT), pp. 1–6, 2020. †
  8. M. M. Hasan, H. Ali, M. F. Hossain, and S. Abujar, “Preprocessing of continuous bengali speech for feature extraction,” 2020 11th International Conference on Computing, Communication and Networking Technologies (ICCCNT), pp. 1–4, 2020. †
  9. M. A. I. Talukder, S. Abujar, A. K. M. Masum, S. Akter, and S. A. Hossain, “Comparative study on abstractive text summarization,” 2020 11th International Conference on Computing, Communication and Networking Technologies (ICCCNT), pp. 1–4, 2020. †
  10. M. R. H. Khan, U. S. Afroz, A. K. M. Masum, S. Abujar, and S. A. Hossain, “Sentiment analysis from bengali depression dataset using machine learning,” 2020 11th international conference on computing, communication and networking technologies (ICCCNT), pp. 1–5, 2020. †
  11. M. Keya, A. K. M. Masum, B. Majumdar, S. A. Hossain, and S. Abujar, “Bengali question answering system using seq2seq learning based on general knowledge dataset,” 2020 11th International Conference on Computing, Communication and Networking Technologies (ICCCNT), pp. 1–6, 2020. †
  12. S. M. S. I. Badhon, H. Rahaman, F. R. Rupon, and S. Abujar, “Bengali accent classification from speech using different machine learning and deep learning techniques,” Soft Computing Techniques and Applications: Proceeding of the International Conference on Computing and Communication (IC3 2020), pp. 503–513, 2020. †
  13. A. Abdullha and S. Abujar, “COVID-19: data analysis and the situation prediction using machine learning based on Bangladesh perspective,” 2020 15th International Joint Symposium on Artificial Intelligence and Natural Language Processing (iSAI-NLP), pp. 1–8, 2020. †

2019

  1. M. A. I. Talukder, S. Abujar, A. K. M. Masum, F. Faisal, and S. A. Hossain, “Bengali abstractive text summarization using sequence to sequence RNNs,” 2019 10th International Conference on Computing, Communication and Networking Technologies (ICCCNT), pp. 1–5, 2019. †
  2. S. Abujar, A. K. M. Masum, M. Mohibullah, S. A. Hossain, et al., “An approach for bengali text summarization using word2vector,” 2019 10th International Conference on Computing, Communication and Networking Technologies (ICCCNT), pp. 1–5, 2019.
  3. A. K. M. Masum, S. Abujar, R. T. H. Tusher, F. Faisal, and S. A. Hossain, “Sentence similarity measurement for Bengali abstractive text summarization,” 2019 10th International Conference on Computing, Communication and Networking Technologies (ICCCNT), pp. 1–5, 2019. †
  4. A. K. M. Masum, S. Abujar, M. A. I. Talukder, A. K. M. S. A. Rabby, and S. A. Hossain, “Abstractive method of text summarization with sequence to sequence RNNs,” 2019 10th international conference on computing, communication and networking technologies (ICCCNT), pp. 1–5, 2019. †
  5. A. K. M. S. A. Rabby, R. Mamata, M. A. Laboni, S. Abujar, et al., “Machine learning applied to kidney disease prediction: Comparison study,” 2019 10th international conference on computing, communication and networking technologies (ICCCNT), pp. 1–7, 2019. †
  6. M. J. R. Rifat, S. Abujar, S. R. H. Noori, and S. A. Hossain, “Bengali Named Entity Recognition: A survey with deep learning benchmark,” 2019 10th International Conference on Computing, Communication and Networking Technologies (ICCCNT), pp. 1–5, 2019. †
  7. S. Abujar, A. K. M. Masum, S. M. M. H. Chowdhury, M. Hasan, and S. A. Hossain, “Bengali text generation using bi-directional RNN,” 2019 10th International Conference on Computing, Communication and Networking Technologies (ICCCNT), pp. 1–5, 2019.
  8. F. Khatun, S. M. M. H. Chowdhury, Z. N. Tumpa, S. K. F. Rabby, S. A. Hossain, and S. Abujar, “Sentiment analysis of Amazon book review data using lexicon based analysis,” International Conference On Computational Vision and Bio Inspired Computing, pp. 1303–1309, 2019. †
  9. A. A. A. Rafat, M. Salehin, F. R. Khan, S. A. Hossain, and S. Abujar, “Vector representation of bengali word using various word embedding model,” 2019 8th International Conference System Modeling and Advancement in Research Trends (SMART), pp. 27–30, 2019. †
  10. M. Salehin, A. A. A. Rafat, F. R. Khan, and S. Abujar, “Generating bengali news headlines: An attentive approach with sequence-to-sequence networks,” 2019 8th International Conference System Modeling and Advancement in Research Trends (SMART), pp. 256–261, 2019. †

2018

  1. S. Abujar, M. Hasan, and S. A. Hossain, “Sentence similarity estimation for text summarization using deep learning,” Proceedings of the 2nd International Conference on Data Engineering and Communication Technology: ICDECT 2017, pp. 155–164, 2018.
  2. S. Islam, S. S. S. Mousumi, A. K. M. S. A. Rabby, S. A. Hossain, and S. Abujar, “A potent model to recognize bangla sign language digits using convolutional neural network,” Procedia computer science, vol. 143, pp. 611–618, 2018. †
  3. A. K. M. S. A. Rabby, S. Haque, S. Abujar, and S. A. Hossain, “Ekushnet: using convolutional neural network for bangla handwritten recognition,” Procedia computer science, vol. 143, pp. 603–610, 2018. †
  4. A. K. M. S. A. Rabby, S. Haque, S. A. Shahinoor, S. Abujar, and S. A. Hossain, “A universal way to collect and process handwritten data for any language,” Procedia computer science, vol. 143, pp. 502–509, 2018. †
  5. A. S. A. Rabby, S. Haque, S. Islam, S. Abujar, and S. A. Hossain, “Bornonet: Bangla handwritten characters recognition using convolutional neural network,” Procedia computer science, vol. 143, pp. 528–535, 2018. †
  6. A. K. M. S. A. Rabby, S. Abujar, S. Haque, and S. A. Hossain, “Bangla handwritten digit recognition using convolutional neural network,” Emerging Technologies in Data Mining and Information Security: Proceedings of IEMIS 2018, Volume 1, pp. 111–122, 2018.[Best Paper Award] †
  7. A. K. M. S. A. Rabby, S. Haque, M. S. Islam, S. Abujar, and S. A. Hossain, “Ekush: A multipurpose and multitype comprehensive database for online off-line bangla handwritten characters,” International conference on recent trends in image processing and pattern recognition, pp. 149–158, 2018. †

2017

  1. S. Abujar, M. Hasan, M. S. I. Shahin, and S. A. Hossain, “A Heuristic Approach of Text Summarization for Bengali Documentation,” 2017 8th International Conference on Computing, Communication and Networking Technologies (ICCCNT), 2017.
  2. S. M. Chowdhury, M. Hoque, P. Ghosh, S. Hossain, S. Abujar, and M. Afrin, “Analyzing Sentimental State of Any Text Data Using Lexical Analysis and Naive Bayes Algorithm Based on Twitter Data,” 1st International Conference on Emerging Technologies in Data Mining and Information Security, 2017.

2016

  1. S. Abujar and M. Hasan, “A comprehensive text analysis for Bengali TTS using unicode,” 2016 5th International Conference on Informatics, Electronics and Vision (ICIEV), pp. 547–551, 2016.

Manuscripts in Preparation

  1. S. Abujar and C. Zhang, “CoGEAR: Covariate-Guided Expert Adaptation and Routing for Multivariate Time-Series Forecasting.”
  2. S. Abujar and C. Zhang, “Learning Which Forecast to Trust: Counterfactual Utility Routing with Residual-Distribution-Guided Correction for Multivariate Time-Series Forecasting.”
  3. S. Abujar, C. E. Kew, C. Zhang, and J. Chen, “Patient-Trajectory-Guided In-Context Learning with Dual-Teacher Supervision and Expert Gating for BK Polyomavirus Nephropathy Prediction.”
  4. S. Abujar, C. Coffee, J. D. Osborne, C. Zhang, and J. Chen, “Building an Annotated Corpus for Breast Cancer Surgical Margins: An NLP Pipeline and Classification Benchmark.”

Edited Book

  1. P. M. Jeyanthi, T. Choudhury, D. Hack-Polay, T. P. Singh, and S. Abujar, eds., Decision Intelligence Analytics and the Implementation of Strategic Business Management, Springer International Publishing, 2022.

Book series: Innovations in Communication and Computing.


Conference Presentations

  1. S. Abujar, C. E. Kew, G. Agarwal, A. Tamhane, T. R. Wei, C. Taylor, C. Zhang, and J. Chen, “Predicting BK Nephropathy Using Comprehensive Transplant-to-Biopsy Non-invasive Clinical Features.” Trainee oral presentation, Artificial Intelligence in Nephrology Conference, University of California San Diego, La Jolla, California, April 23–24, 2026. [Trainee Travel Award]

Teaching Experience

University of Alabama at Birmingham

Birmingham, Alabama
Guest Lecturer, INFO 610: Programming with Biological Data
Summer 2026

Independent University, Bangladesh

Dhaka, Bangladesh
Lecturer
Feb. 2021–Dec. 2021

Daffodil International University

Dhaka, Bangladesh
Lecturer and Senior Lecturer
Sept. 2017–Jan. 2021

Britannia University

Comilla, Bangladesh
Lecturer
Feb. 2015–Aug. 2017

Teaching Philosophy

My teaching rests on two convictions: that education is fundamentally about human development, and that a student's time is their most valuable resource. Inspired by Randy Pausch's The Last Lecture, I pair rigorous fundamentals with hands-on projects and mentor students toward independent inquiry. As I like to put it, in learning you will teach, and in teaching you will learn.


Curriculum and Instructional Development


Student Mentoring and Supervision


Invited Talks and Workshops


Academic and Professional Service

Conference and Workshop Leadership

Peer Review

Institutional and Student-Engagement Service

Professional Membership


Sheikh Abujar · Department of Computer Science, University of Alabama at Birmingham · Birmingham, Alabama
sabujar@uab.edu
Last updated .