Topological structure of complex predictions
Topological structure of complex predictions
复制标题
复杂预测的拓扑结构
DOI:
10.1038/s42256-023-00749-8
复制
发表时间:
2023
影响因子:
23.8
通讯作者:
Gleich, David F.
中科院分区:
文献类型:
--
作者:
Liu, Meng;Dey, Tamal K.;Gleich, David F.
Current complex prediction models are the result of fitting deep neural networks, graph convolutional networks or transducers to a set of training data. A key challenge with these models is that they are highly parameterized, which makes describing and interpreting the prediction strategies difficult. We use topological data analysis to transform these complex prediction models into a simplified topological view of the prediction landscape. The result is a map of the predictions that enables inspection of the model results with more specificity than dimensionality-reduction methods such as tSNE and UMAP. The methods scale up to large datasets across different domains. We present a case study of a transformer-based model previously designed to predict expression levels of a piece of DNA in thousands of genomic tracks. When the model is used to study mutations in theBRCA1gene, our topological analysis shows that it is sensitive to the location of a mutation and the exon structure ofBRCA1in ways that cannot be found with tools based on dimensionality reduction. Moreover, the topological framework offers multiple ways to inspect results, including an error estimate that is more accurate than model uncertainty. Further studies show how these ideas produce useful results in graph-based learning and image classification.
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DOI:
10.1017/9781009099950
发表时间:
2022-02
期刊:
--
影响因子:
--
作者:
T. Dey;Yusu Wang
通讯作者:
T. Dey;Yusu Wang
影响因子:
64.8
作者:
Esteva A;Kuprel B;Novoa RA;Ko J;Swetter SM;Blau HM;Thrun S
通讯作者:
Thrun S
DOI:
10.1073/pnas.1900654116
发表时间:
2019-10-29
影响因子:
11.1
作者:
Murdoch, W. James;Singh, Chandan;Yu, Bin
通讯作者:
Yu, Bin
影响因子:
23.8
作者:
Bergomi, Mattia G.;Frosini, Patrizio;Quercioli, Nicola
通讯作者:
Quercioli, Nicola
影响因子:
0.7
作者:
J. Christiansen
通讯作者:
J. Christiansen