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- W2892093980 abstract "To effectively assess the potential consequences of human interventions in model-driven analytics systems, we establish the concept of speculative execution as a visual analytics paradigm for creating user-steerable preview mechanisms. This paper presents an explainable, mixed-initiative topic modeling framework that integrates speculative execution into the algorithmic decisionmaking process. Our approach visualizes the model-space of our novel incremental hierarchical topic modeling algorithm, unveiling its inner-workings. We support the active incorporation of the user's domain knowledge in every step through explicit model manipulation interactions. In addition, users can initialize the model with expected topic seeds, the backbone priors. For a more targeted optimization, the modeling process automatically triggers a speculative execution of various optimization strategies, and requests feedback whenever the measured model quality deteriorates. Users compare the proposed optimizations to the current model state and preview their effect on the next model iterations, before applying one of them. This supervised human-in-the-loop process targets maximum improvement for minimum feedback and has proven to be effective in three independent studies that confirm topic model quality improvements." @default.
- W2892093980 created "2018-09-27" @default.
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- W2892093980 date "2019-01-01" @default.
- W2892093980 modified "2023-10-16" @default.
- W2892093980 title "Visual Analytics for Topic Model Optimization based on User-Steerable Speculative Execution" @default.
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- W2892093980 doi "https://doi.org/10.1109/tvcg.2018.2864769" @default.
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