RESEARCH FOCUS
My research focuses on developing a unified framework for modelling multi-source information diffusion in dynamic, evolving networks where node adoption thresholds adapt over time to internal diffusion outcomes and external environmental shocks. This includes understanding and modelling intrinsic node properties affecting cascade propagation, with planned extensions into Graph Neural Networks (GNNs) and Explainable AI (XAI).
RESEARCH EXPERIENCE
PhD Research Intern, Air Force Research Lab, Rome, NY Summer 2024
- Developed a novel fuzzy rule-based framework to enhance the interpretability of Reinforcement Learning (RL) agents in continuous action spaces, enabling transparency for 'black box' neural network models. 
- Successfully translated the complex decision-making processes of a Soft Actor-Critic (SAC) RL agent into a transparent Fuzzy Knowledge Base (FuzzyKB) composed of human-readable IF-THEN rules, effectively creating a "digital twin" for explainability. 
- Engineered the framework to capture state-action-reward trajectories from RL agent training (e.g., in LunarLanderContinuous-v2) and employed Takagi-Sugeno-Kang (TSK) fuzzy partitioning for robust state-space representation and rule extraction. 
- Demonstrated the framework's efficacy by reducing over 26,000 captured experiences from SAC training into a concise set of 74 human-readable FuzzyKB rules, showcasing the potential to explain complex neural network behaviour with significantly fewer rules. 
- Addressed the challenging problem of explainability in continuous action spaces, a key distinction from approaches focused solely on discrete actions, thereby broadening the applicability of XAI in RL. 
- The resulting framework and findings were documented in a research paper (related work "Crisp Distance Metrics for Fuzzy Rules," co-authored with C. Mohan, is being revised for new submission) and presented as a poster ("Fuzzy Rule-Based Framework for Explainable Reinforcement Learning"), with support from AFRL's Griffis Institute. 
PhD Research Assistant, Dr. Venkata Gandikota’s Lab, Syracuse, NY Summer 2025
- Working with Dr. GV and his team to develop frameworks on several fronts. This work still is in its nascent stage. 
- We are working on Graph Reconstruction from Cascades, Bi-level Optimization Using Evolutionary Methods, Louvain Communities in Deep Neural Networks. 
Research Assistant, Syracuse University, Syracuse, NY (Summer 2019 - Present)
- Led the computer science aspects of an interdisciplinary research project with the S.I. Newhouse School of Public Communication and ComScore, focusing on TV ad viewing retention and effective ad curation. My role encompassed data analysis, feature engineering, model development, and experimental design. 
- Designed and implemented machine learning models, including Random Forests and Neural Networks (using error backpropagation), to analyse extensive second-by-second ComScore TV Essentials viewing data for various programs and ad placements. 
- Developed predictive models achieving over 80% accuracy in identifying key attributes (e.g., ad pod number, program viewed percentage, originality, ad duration) that contribute to TV ad viewing retention. 
- This research contributed to the development of an ad curation model aimed at maximizing TV ad audiences and resulted in three peer-reviewed conference publications, including an award-winning paper at the Broadcast Education Association (BEA) Conference. 
- Contributed to identifying optimal program and ad attributes for maintaining ad viewership, such as focusing on the first ad pod, higher program viewing percentage, and fewer ads per break. 
- Currently spearheading PhD dissertation research focused on developing a novel, adaptive framework for modelling multi-source information diffusion in dynamic, evolving networks, incorporating user behavioural traits and adaptive node thresholds, with planned extensions into Graph Neural Networks and Explainable AI. 
PUBLICATIONS
Peer-Reviewed Conference Papers
[1]. Sanup S Araballi, Q. Ni, F. Chew, B. Egan, and C. Mohan, "Developing an ad viewing retention model for TV comedy through machine learning," presented at the Broadcast Education Association (BEA) Conference, Apr. 2021. Open Paper Competition Winner.
[2]. F. Chew, B. Egan, C. Mohan, D. Xu, and Sanup S Araballi, "Stay tuned: Predicting ad viewing retention in TV programs using machine learning," presented at the Broadcast Education Association (BEA) Conference, Apr. 2020.
[3]. Fiona Chew, Beth E. Egan, Chilukuri Mohan, Dongqing Xu, and Sanup S Araballi, "Predicting effective ad curation with neural networks and statistical analyses to maximize audiences during TV ad breaks," presented at the Advertising Research Foundation (ARF) Audience xScience Conference, Sep. 2020.
Manuscripts in Preparation
- Sanup S Araballi and C. Mohan, "Crisp Distance Metrics for Fuzzy Rules." (Revising for submission). 
- Sanup S Araballi and V. Gandikota, "Communities in Deep Neural Networks and their compression." (In preparation). 
- Sanup S Araballi and V. Gandikota, "Hybrid co-evolutionary meta modelling for bi-level optimization." (Submitted to ECTA2025). 
PROFESSIONAL SERVICES
- Peer Reviewer:- Tapia 2025 
- IJCNN 2025 
- NeurIPS 2025 
 
- Event Organization: Organizer, Departmental Research Talks, EECS, Syracuse University. 
- Mentoring: Informal Mentor to 10 graduate/undergraduate students (approx. 2020-2024). 
- Team Mentor, Hack Upstate, 2019. Conceptualized the project and provided guidance to a student team to develop and implement "Design Evolution of Objects for Their Aerodynamics Using Genetic Algorithms" project. 
