Selected Publications
- 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.
- 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.
- 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).
- 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.
- 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.
- 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).
- 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).
- 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.
- 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.
- 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.
- 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.
- 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).
- 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).
- 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).