Abstract: Continuous Normalizing Flows (CNFs) have emerged as a powerful class of generative models, distinguished by their capacity for both high-fidelity sample generation and highly expressive density modeling. By leveraging neural ordinary differential equations (ODEs), CNFs construct a continuous-time, invertible mapping that smoothly transforms a tractable base distribution, such as standard Gaussian, into a complex, high-dimensional target data distribution. In this talk, we will explore the theoretical foundations and computational mechanisms underpinning CNFs. Building on these principles, we will examine the versatility of this framework across a broad spectrum of modern statistical and machine learning tasks. Specifically, we will highlight how the exact invertibility and tractable density evaluation inherent to CNFs can be uniquely leveraged to characterize conditional independence, advance counterfactual estimation in causal inference, provide rigorous uncertainty quantification in conformal prediction, and enable dynamic trajectory modeling in motion generation.
Dr.
Jian Huang is a Chair Professor of Data Science and
Analytics in the Department of Applied Mathematics at The Hong
Kong Polytechnic University. He obtained his Ph.D. degree in
Statistics from the University of Washington in Seattle. His
current research interests include deep generative models and
inference, statistical inference in deep learning, deep neural
network approximation theory, representation learning, and
statistical analysis leveraging pretrained large models. He has
published widely in the fields of Statistics, Biostatistics,
Machine Learning, Bioinformatics and Econometrics. He was
designated a highly cited researcher in the field of Mathematics
from 2015 to 2019 by the Web of Science group at Clarivate and
included in the list of top 2% of the world's most cited
scientists by Elsevier BV and Stanford University (2019-2024).
He serves on the editorial boards of the Journal of the American
Statistical Association and Journal of the Royal Statistical
Society (Series B). Professor Huang is a fellow of the American
Statistical Association and a fellow of the Institute of
Mathematical Statistics.
Abstract: This report focuses on speech emotion recognition technology and its applications in AI-driven intelligent marketing, examining three practical scenarios in the automotive industry: live streaming and short-video marketing, telemarketing, and AI tele-robot marketing, to explore its technical framework, implementation, and business value. For live streaming and short-video marketing, a CNN-based speech emotion recognition model is built using a dataset of 9,303 audio clips with MFCC features to quantify hosts’ positive emotions, a key factor in conversion. For telemarketing customer conversion prediction, an emotion-enhanced dual-attention model fusing speech Mel spectrograms and textual dialogue data is proposed, achieving an AUC of 0.921 and significantly improving efficiency while reducing costs. The report also establishes a state-space model-based AI tele-robot framework integrating ASR, TTS, and large language models, with continuously enhanced conversion performance. Finally, a theoretical framework for intelligent speech marketing centered on cost, trust, and benefit is proposed, highlighting the technology’s extensibility to education, healthcare, and public sectors and providing a reference for the integration of speech technology and digital marketing.
Dr.
Hannsheng Wang is Professor and PhD Supervisor, Department
of Business Statistics and Econometrics, Guanghua School of
Management, Peking University. He is a recipient of the National
Science Fund for Distinguished Young Scholars, a Changjiang
Distinguished Professor appointed by the Ministry of Education,
and the Founding President of the Young Statisticians
Association of the Chinese Industrial Statistics Teaching and
Research Association. He is an IMS Fellow, ASA Fellow, and
Elected Member of the ISI. He has served as Associate Editor or
Editor for 10 international academic journals. He has published
over 200 papers in professional journals worldwide, co-authored
one English monograph and five Chinese textbooks. He has been
selected as an Elsevier Highly Cited Chinese Researcher in
Mathematics (2014–2019), Applied Economics (2020), and
Statistics (2021–2025).
Abstract: TBA
Dr. Tian
Zheng Professor of Statistics at Columbia University. She
obtained her Ph.D. from Columbia in 2002. In her research, she
develops novel methods for exploring and understanding patterns
in complex data from different application domains such as
biology, psychology, climatology, and etc. Her current projects
are in the fields of statistical machine learning,
spatiotemporal modeling, and social network analysis,
collaborating with ecologists and earth scientists. Professor
Zheng’s research has been recognized by the 2008 Outstanding
Statistical Application Award from the American Statistical
Association (ASA), the Mitchell Prize from ISBA, and a Google
research award. She became a Fellow of the American Statistical
Association in 2014. Professor Zheng is passionate about
education and mentoring. From 2015-2016, she was one of the
series creators for Columbia’s edX Massive Online Open Course
(MOOC) series on data science. From 2017-2020, she was associate
director for education of Columbia Data Science Institute. She
led a number of education programs, including the MS in Data
Science program at Columbia, data science capstone projects with
data ethics components, DSI Scholars program that connects
students with academic research projects in data science, the
Collaboratory program for interdisciplinary data science
curriculum development, a number of popular Data Science boot
camps. She created DSI’s working group on Data Science Education
and has been coordinating data science education efforts across
Columbia. Professor Zheng is the receipt of the 2017 Columbia’s
Presidential Award for Outstanding Teaching. In 2021, she was
recognized by a Lenfest Distinguished Columbia Faculty Award
that recognizes the excellence of faculty as teachers and
mentors of both undergraduate and graduate students.