Scientific leader bringing over 25 years of experience to the international AI and Data Science research communities. Spanning both rigorous academic research and industrial leadership, my career path is backed by a proven track record of translating foundational research into impactful industrial solutions and establishing globally-recognized research teams.
My expertise lies in driving large-scale research initiatives and aligning cutting-edge research with strategic business objectives. As a hands-on leader, I am deeply committed to mentoring researchers and cultivating a highly cooperative culture. My core research interests cover AI, machine learning, data mining, network science, and algorithmic fairness, with my work regularly appearing in top-tier venues such as NeurIPS, KDD, WWW, and VLDB.
Given a ranking of individuals produced by a black-box, how can we audit the black-box assessing whether the order is driven by protected attributes (e.g., gender or race) rather than task-relevant features? To solve this problem, we introduce Condor (CONditional Distance-cOrrelation for Rankings), a model-agnostic audit framework that quantifies the residual dependence of a ranking on protected attributes. By combining this test with an unconditional independence test, auditors can achieve a comprehensive causal understanding of the protected attributes’ influence.
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When subgroup sizes vary widely, traditional fairness tests often fail, producing false alarms for tiny groups and missing real issues in larger ones. Our methodology - SAFT: Size-Adaptive Hypothesis Testing for Fairness - offers a rigorous, uncertainty-aware way to evaluate fairness.
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How persuasive are LLMs within social networks, not just in one-on-one settings? We introduce a novel Reinforcement Learning (RL) pipeline that empowers LLMs to generate high-engagement content for social platforms, without requiring costly, slow live experiments.
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We introduce a scalable framework for training GNNs based on effective resistance, a standard tool in spectral graph theory. Our method progressively refines the GNN weights on a sequence of random spanning trees suitably transformed into path graphs which, despite their simplicity, are shown to retain essential topological and node information of the original input graph.
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We address the challenge of ensuring a fair distribution of visits among network nodes when handling a high volume of point-to- point path queries. In doing so, we adopt a Rawlsian notion of individual-level fairness exploiting the power of randomization.
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