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Fig. 2 | Genome Biology

Fig. 2

From: Robustness and applicability of transcription factor and pathway analysis tools on single-cell RNA-seq data

Fig. 2

Benchmark results of TF and pathway analysis tools on simulated scRNA-seq data. a Simulation strategy of single cells from an RNA-seq bulk sample. b Example workflow of DoRothEA’s performance evaluation on simulated single cells for a specific parameter combination (number of cells = 10, mean library size = 5000). 1. Step: ROC-curves of DoRothEA’s performance on single cells (25 replicates) and on bulk data including only TFs with confidence level A. 2. Step: DoRothEA performance on single cells and bulk data summarized as AUROC vs TF coverage. TF coverage denotes the number of distinct perturbed TFs in the benchmark dataset that are also covered by the gene set resource (see Additional file 1: Figure S3a) Results are provided for different combinations of DoRothEA’s confidence levels (A, B, C, D, E). Error bars of AUROC values depict the standard deviation and correspond to different simulation replicates. Step 3: Averaged difference across all confidence level combinations between AUROC of single cells and bulk data for all possible parameter combinations. The letters within the tiles indicates which confidence level combination performs the best on single cells. The tile marked in red corresponds to the parameter setting used for previous plots (Steps 1 and 2). c D-AUCell and d metaVIPER performance on simulated single cells summarized as AUROC for a specific parameter combination (number of cells = 10, mean library size = 5000) and corresponding bulk data vs TF coverage. e, f Performance results of e PROGENy and f P-AUCell on simulated single cells for a specific parameter combination (number of cells = 10, mean library size = 5000) and corresponding bulk data in ROC space vs number of footprint genes per pathway. cf Plots revealing the change in performance for all possible parameter combinations (Step 3) are available in Additional file 1: Figure S7. bf The dashed line indicates the performance of a random model

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