Bring Lectures to Life: An Interactive Video System Powered by AI Avatars
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Researchers have developed a new system that uses artificial intelligence to create dynamic, responsive lectures, allowing users to ask questions and receive contextualized explanations in real-time.

![ReaSeq transcends traditional sequential modeling by fully leveraging the reasoning capabilities of large language models, enriching representations to overcome limitations in identifying user interests and expanding behavioral perception beyond the constraints of logged data-a process achieved through the application of reasoning techniques to unlock pre-existing world knowledge within the model [latex] \rightarrow [/latex] enabling a more comprehensive understanding of user behavior.](https://arxiv.org/html/2512.21257v1/x1.png)

![The agent autonomously constructs state abstractions within a dynamic office environment, learning policies for multi-item delivery through parameterized actions-each defined by a precision-calibrated interval [latex] [a, b) [/latex], where the length [latex] b - a [/latex] directly reflects the granularity of control achieved in navigating the space.](https://arxiv.org/html/2512.20831v1/plots/office2.png)


