... structure in conversation while jointly incorporating a participant-level social component. Specifically, we explicitlymodel an individual’s tendency to introduce a topic. After outlining inference in ... model of topical trends. In Knowledge Discoveryand Data Mining, Knowledge Discovery and Data Min-ing.87Proceedings of the 50th Annual Meeting of the Association for Computational Linguistics, ... Continuous time dynamic topic models. In Proceedings of Uncertainty in Artificial Intelligence.[Wang and McCallum, 2006]Wang, X. and McCallum, A.(2006). Topics over time: a non-Markov continuous-time...