Interview with Zahra Ghorrati: creating frameworks for human exercise recognition utilizing wearable sensors

On this interview sequence, we’re assembly a few of the AAAI/SIGAI Doctoral Consortium members to search out out extra about their analysis. Zahra Ghorrati is creating frameworks for human exercise recognition utilizing wearable sensors. We caught up with Zahra to search out out extra about this analysis, the facets she has discovered most attention-grabbing, and her recommendation for potential PhD college students.

Inform us a bit about your PhD – the place are you learning, and what’s the matter of your analysis?

I’m pursuing my PhD at Purdue College, the place my dissertation focuses on creating scalable and adaptive deep studying frameworks for human exercise recognition (HAR) utilizing wearable sensors. I used to be drawn to this matter as a result of wearables have the potential to remodel fields like healthcare, aged care, and long-term exercise monitoring. In contrast to video-based recognition, which might elevate privateness issues and requires fastened digicam setups, wearables are moveable, non-intrusive, and able to steady monitoring, making them supreme for capturing exercise information in pure, real-world settings.

The central problem my dissertation addresses is that wearable information is usually noisy, inconsistent, and unsure, relying on sensor placement, motion artifacts, and system limitations. My purpose is to design deep studying fashions that aren’t solely computationally environment friendly and interpretable but additionally strong to the variability of real-world information. In doing so, I purpose to make sure that wearable HAR methods are each sensible and reliable for deployment outdoors managed lab environments.

This analysis has been supported by the Polytechnic Summer season Analysis Grant at Purdue. Past my dissertation work, I contribute to the analysis neighborhood as a reviewer for conferences reminiscent of CoDIT, CTDIAC, and IRC, and I’ve been invited to overview for AAAI 2026. I used to be additionally concerned in neighborhood constructing, serving as Native Organizer and Security Chair for the twenty fourth Worldwide Convention on Autonomous Brokers and Multiagent Programs (AAMAS 2025), and persevering with as Security Chair for AAMAS 2026.

May you give us an outline of the analysis you’ve carried out up to now throughout your PhD?

To this point, my analysis has centered on creating a hierarchical fuzzy deep neural community that may adapt to various human exercise recognition datasets. In my preliminary work, I explored a hierarchical recognition method, the place less complicated actions are detected at earlier ranges of the mannequin and extra complicated actions are acknowledged at increased ranges. To boost each robustness and interpretability, I built-in fuzzy logic ideas into deep studying, permitting the mannequin to higher deal with uncertainty in real-world sensor information.

A key energy of this mannequin is its simplicity and low computational value, which makes it significantly effectively fitted to real-time exercise recognition on wearable units. I’ve rigorously evaluated the framework on a number of benchmark datasets of multivariate time sequence and systematically in contrast its efficiency in opposition to state-of-the-art strategies, the place it has demonstrated each aggressive accuracy and improved interpretability.

Is there a side of your analysis that has been significantly attention-grabbing?

Sure, what excites me most is discovering how completely different approaches could make human exercise recognition each smarter and extra sensible. As an example, integrating fuzzy logic has been fascinating, as a result of it permits the mannequin to seize the pure uncertainty and variability of human motion. As an alternative of forcing inflexible classifications, the system can purpose when it comes to levels of confidence, making it extra interpretable and nearer to how people truly assume.

I additionally discover the hierarchical design of my mannequin significantly attention-grabbing. Recognizing easy actions first, after which constructing towards extra complicated behaviors, mirrors the way in which people typically perceive actions in layers. This construction not solely makes the mannequin environment friendly but additionally offers insights into how completely different actions relate to 1 one other.

Past methodology, what motivates me is the real-world potential. The truth that these fashions can run effectively on wearables means they may ultimately help personalised healthcare, aged care, and long run exercise monitoring in individuals’s on a regular basis lives. And because the strategies I’m creating apply broadly to time sequence information, their impression might prolong effectively past HAR, into areas like medical diagnostics, IoT monitoring, and even audio recognition. That sense of each depth and flexibility is what makes the analysis particularly rewarding for me.

What are your plans for constructing in your analysis up to now throughout the PhD – what facets will you be investigating subsequent?

Transferring ahead, I plan to additional improve the scalability and flexibility of my framework in order that it may possibly successfully deal with massive scale datasets and help real-time purposes. A serious focus will likely be on enhancing each the computational effectivity and interpretability of the mannequin, guaranteeing it’s not solely highly effective but additionally sensible for deployment in real-world situations.

Whereas my present analysis has centered on human exercise recognition, I’m excited to broaden the scope to the broader area of time sequence classification. I see nice potential in making use of my framework to areas reminiscent of sound classification, physiological sign evaluation, and different time-dependent domains. This may permit me to display the generalizability and robustness of my method throughout various purposes the place time-based information is crucial.

In the long run, my purpose is to develop a unified, scalable mannequin for time sequence evaluation that balances adaptability, interpretability, and effectivity. I hope such a framework can function a basis for advancing not solely HAR but additionally a broad vary of healthcare, environmental, and AI-driven purposes that require real-time, data-driven decision-making.

What made you wish to examine AI, and specifically the realm of wearables?

My curiosity in wearables started throughout my time in Paris, the place I used to be first launched to the potential of sensor-based monitoring in healthcare. I used to be instantly drawn to how discreet and non-invasive wearables are in comparison with video-based strategies, particularly for purposes like aged care and affected person monitoring.

Extra broadly, I’ve at all times been fascinated by AI’s skill to interpret complicated information and uncover significant patterns that may improve human well-being. Wearables supplied the right intersection of my pursuits, combining cutting-edge AI strategies with sensible, real-world impression, which naturally led me to focus my analysis on this space.

What recommendation would you give to somebody considering of doing a PhD within the subject?

A PhD in AI calls for each technical experience and resilience. My recommendation can be:

• Keep curious and adaptable, as a result of analysis instructions evolve rapidly, and the power to pivot or discover new concepts is invaluable.
• Examine combining disciplines. AI advantages enormously from insights in fields like psychology, healthcare, and human-computer interplay.
• Most significantly, select an issue you’re really keen about. That zeal will maintain you thru the inevitable challenges and setbacks of the PhD journey.

Approaching your analysis with curiosity, openness, and real curiosity could make the PhD not only a problem, however a deeply rewarding expertise.

May you inform us an attention-grabbing (non-AI associated) truth about you?

Outdoors of analysis, I’m keen about management and neighborhood constructing. As president of the Purdue Tango Membership, I grew the group from simply 2 college students to over 40 lively members, organized weekly courses, and hosted massive occasions with internationally acknowledged instructors. Extra importantly, I centered on making a welcoming neighborhood the place college students really feel linked and supported. For me, tango is greater than dance, it’s a solution to convey individuals collectively, bridge cultures, and stability the depth of analysis with creativity and pleasure.

I additionally apply these expertise in educational management. For instance, I function Native Organizer and Security Chair for the AAMAS 2025 and 2026 conferences, which has given me hands-on expertise managing occasions, coordinating groups, and creating inclusive areas for researchers worldwide.

About Zahra

Zahra Ghorrati is a PhD candidate and instructing assistant at Purdue College, specializing in synthetic intelligence and time sequence classification with purposes in human exercise recognition. She earned her undergraduate diploma in Laptop Software program Engineering and her grasp’s diploma in Synthetic Intelligence. Her analysis focuses on creating scalable and interpretable fuzzy deep studying fashions for wearable sensor information. She has offered her work at main worldwide conferences and journals, together with AAMAS, PAAMS, FUZZ-IEEE, IEEE Entry, System and Utilized Tender Computing. She has served as a reviewer for CoDIT, CTDIAC, and IRC, and has been invited to overview for AAAI 2026. Zahra additionally contributes to neighborhood constructing as Native Organizer and Security Chair for AAMAS 2025 and 2026.