Efficient Biological Data Acquisition through Inference Set Design

• URL: http://arxiv.org/abs/2410.19631v1
• Date: Fri, 25 Oct 2024 15:34:03 GMT
• Title: Efficient Biological Data Acquisition through Inference Set Design
• Authors: Ihor Neporozhnii, Julien Roy, Emmanuel Bengio, Jason Hartford,
• Abstract summary: In this work, we aim to select the smallest set of candidates in order to achieve some desired level of accuracy for the system as a whole. We call this mechanism inference set design, and propose the use of an uncertainty-based active learning solution to prune out challenging examples.
• Score: 3.9633147697178996
• License:
• Abstract: In drug discovery, highly automated high-throughput laboratories are used to screen a large number of compounds in search of effective drugs. These experiments are expensive, so we might hope to reduce their cost by experimenting on a subset of the compounds, and predicting the outcomes of the remaining experiments. In this work, we model this scenario as a sequential subset selection problem: we aim to select the smallest set of candidates in order to achieve some desired level of accuracy for the system as a whole. Our key observation is that, if there is heterogeneity in the difficulty of the prediction problem across the input space, selectively obtaining the labels for the hardest examples in the acquisition pool will leave only the relatively easy examples to remain in the inference set, leading to better overall system performance. We call this mechanism inference set design, and propose the use of an uncertainty-based active learning solution to prune out these challenging examples. Our algorithm includes an explicit stopping criterion that stops running the experiments when it is sufficiently confident that the system has reached the target performance. Our empirical studies on image and molecular datasets, as well as a real-world large-scale biological assay, show that deploying active learning for inference set design leads to significant reduction in experimental cost while obtaining high system performance.

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