Selected Publications

  1. Lihe, T., Kasap, B., Vali, K., and Ghiasi, S. (2026). HDFusion: Hierarchical Data Fusion for Robust Fetal Heart Rate Estimation Using Transabdominal PPG Signals. ACM Transactions on Computing for Healthcare.
  2. Fowler, R., Kasap, B., Qian, W., Joarder, R., Vali, K., Mani, S., and Ghiasi, S. (2026). Fetal pHocus: A Novel Approach to Non-Invasive Fetal Arterial Blood pH Assessment via Near-Infrared Spectroscopy. ACM transactions on computing for healthcare.
  3. Vali, K., Kasap, B., Vafi, A., and Ghiasi, S. (2025). JOIN: Optimized Light Source Activation for Deep Tissue Optical Sensing. ACM/IEEE 16th International Conference on Cyber-Physical Systems (ICCPS).
  4. Kasap, B., Vali, K., Qian, W., Mo, L., Chithiwala, Z. H., Curtin, A. C., Ghiasi, S., and Hedriana, H. L. (2024). Transcutaneous Discrimination of Fetal Heart Rate from Maternal Heart Rate: A Fetal Oximetry Proof-of-Concept. Reproductive Sciences.
  5. Vali, K., Vafi, A., Kasap, B., and Ghiasi, S. (2023). BASS: Safe Deep Tissue Optical Sensing for Wearable Embedded Systems. ACM Transactions on Embedded Computing Systems.
  6. Kasap, B., Vali, K., Qian, W., Saffarpour, M., Fowler, R., and Ghiasi, S. (2023). Robust Fetal Heart Rate Tracking through Fetal Electrocardiography (ECG) and Photoplethysmography (PPG) Fusion. IEEE 45th International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC).
  7. Vafi, A., Vali, K., Kasap, B., Hu, J. C., Kurzrock, E. A., and Ghiasi, S. (2023). Towards Non-Invasive Bladder Volume Sensing via Bio-Impedance Spectroscopy: Feasibility Demonstration in Ex-Vivo Bladder Models. ACM/IEEE 14th International Conference on Cyber-Physical Systems (ICCPS).
  8. Saffarpour, M., Basu, D., Radaei, F., Vali, K., Adams, J. Y., Chuah, C.-N., and Ghiasi, S. (2023). Physiowise: A Physics-Aware Approach to Dicrotic Notch Identification. ACM Transactions on Computing for Healthcare.
  9. Kasap, B., Vali, K., Qian, W., Mo, L., Chithiwala, Z. H., Hedriana, H. L., and Ghiasi, S. (2023). Use of a Novel Transabdominal Fetal Pulse Oximeter (TFO) in Human Pregnancy: A Proof-of-Concept. American Journal of Obstetrics and Gynecology.
  10. Qian, W., Vali, K., Kasap, B., Pivetti, C. D., Theodorou, C. M., Kulubya, E. S., Yamashiro, K. J., Wang, A., Hedriana, H. L., Farmer, D. L., and Ghiasi, S. (2023). Continuous Transabdominal Fetal Pulse Oximetry (TFO) in Pregnant Ewe Models under Induced Fetal Hypoxia. American Journal of Obstetrics and Gynecology.
  11. Kasap, B., Vali, K., Qian, W., Saffarpour, M., and Ghiasi, S. (2023). KUBAI: Sensor Fusion for Non-Invasive Fetal Heart Rate Tracking. IEEE Transactions on Biomedical Engineering.
  12. Vali, K., Kasap, B., Qian, W., Vafi, A., Saffarpour, M., and Ghiasi, S. (2021). Estimation of Fetal Blood Oxygen Saturation from Transabdominally Acquired Photoplethysmogram Waveform. IEEE 43rd International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC).
  13. Kasap, B., Vali, K., Qian, W., Chak, W. H., Vafi, A., Saito, N., and Ghiasi, S. (2021). Multi-Detector Signal Extraction Method for Transabdominal Fetal Pulse Oximetry. IEEE 43rd International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC).
  14. Fong, D. D., Vali, K., and Ghiasi, S. (2020). Contextually-aware fetal sensing in transabdominal fetal pulse oximetry. ACM/IEEE 11th International Conference on Cyber-Physical Systems (ICCPS).