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Multi-Objective Intrinsic Reward Learning for Conversational Recommender Systems

Neural Information Processing Systems

Conversational Recommender Systems (CRS) actively elicit user preferences to generate adaptive recommendations. Mainstream reinforcement learning-based CRS solutions heavily rely on handcrafted reward functions, which may not be aligned with user intent in CRS tasks.


The Best Amazon Echo Deal for Prime Day (October 2025): The Echo Spot

WIRED

Only one smart speaker out of Amazon's lineup is worth investing in during Prime Day. For any other speaker, it's better to wait. All products featured on WIRED are independently selected by our editors. However, we may receive compensation from retailers and/or from purchases of products through these links. I've tried nearly every single Echo Amazon has made, from the tower-like original Echo that sat in my first postgrad apartment to the swath of Echo Show devices you can find in my home right now while I test Alexa+'s early access .


A Details of the empirical setup in Section 3.4

Neural Information Processing Systems

Our model is one of the simplest possible that studies specialization in the supply-side marketplace. First, the infinite, high-dimensional content embedding space captures that digital goods can't be cleanly clustered into categories, but rather, are often mixtures of different dimensions (e.g. a movie can be both a drama and a comedy). See Anderson et al. [ 1992 ] for a textbook treatment. The assumption that all producers share the same cost function is also simplifying, but, potentially surprisingly, still allows us to study specialization. Proposition 4. F or any set of users and any 1, a pure strategy equilibrium does not exist.