@InProceedings{balle_et_al:LIPIcs.ICALP.2021.118, author = {Balle, Borja and Lacroce, Clara and Panangaden, Prakash and Precup, Doina and Rabusseau, Guillaume}, title = {{Optimal Spectral-Norm Approximate Minimization of Weighted Finite Automata}}, booktitle = {48th International Colloquium on Automata, Languages, and Programming (ICALP 2021)}, pages = {118:1--118:20}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-195-5}, ISSN = {1868-8969}, year = {2021}, volume = {198}, editor = {Bansal, Nikhil and Merelli, Emanuela and Worrell, James}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ICALP.2021.118}, URN = {urn:nbn:de:0030-drops-141873}, doi = {10.4230/LIPIcs.ICALP.2021.118}, annote = {Keywords: Weighted finite automata, approximate minimization, Hankel matrices, AAK Theory} }