@conference {hodovan2017tree, title = {Tree Preprocessing and Test Outcome Caching for Efficient Hierarchical Delta Debugging}, booktitle = {Proceedings of the 12th IEEE/ACM International Workshop on Automation of Software Testing (AST 2017)}, year = {2017}, pages = {23{\textendash}29}, address = {Buenos Aires, Argentina}, keywords = {select:itsec2}, author = {Hodov{\'a}n, Ren{\'a}ta and {\'A}kos Kiss and Tibor Gyim{\'o}thy} }