Michael Kampffmeyer from UiT The Arctic University of Norway presented a talk at MBZUAI on representation learning for deep clustering and few-shot learning. The talk covered deep clustering in multi-view settings and the influence of geometrical representation properties on few-shot classification performance. He specifically discussed embedding representations on the hypersphere and its connection to the hubness phenomenon. Why it matters: This highlights MBZUAI's role in hosting discussions on advanced machine learning topics like few-shot learning, which are crucial for addressing data scarcity challenges in the region and beyond.
This seminar explores vision systems through self-supervised representation learning, addressing challenges and solutions in mainstream vision self-supervised learning methods. It discusses developing versatile representations across modalities, tasks, and architectures to propel the evolution of the vision foundation model. Tong Zhang from EPFL, with a background from Beihang University, New York University, and Australian National University, will lead the talk. Why it matters: Advancing vision foundation models is crucial for expanding AI applications, especially in the Middle East where computer vision can address challenges in areas like urban planning, agriculture, and environmental monitoring.
The paper introduces TimeHUT, a new method for learning time-series representations using hierarchical uniformity-tolerance balancing of contrastive representations. TimeHUT employs a hierarchical setup to learn both instance-wise and temporal information, along with a temperature scheduler to balance uniformity and tolerance. The method was evaluated on UCR, UAE, Yahoo, and KPI datasets, demonstrating superior performance in classification tasks and competitive results in anomaly detection.