@InProceedings{figueira_et_al:LIPIcs.ICDT.2023.15, author = {Figueira, Diego and Morvan, R\'{e}mi}, title = {{Approximation and Semantic Tree-Width of Conjunctive Regular Path Queries}}, booktitle = {26th International Conference on Database Theory (ICDT 2023)}, pages = {15:1--15:19}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-270-9}, ISSN = {1868-8969}, year = {2023}, volume = {255}, editor = {Geerts, Floris and Vandevoort, Brecht}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ICDT.2023.15}, URN = {urn:nbn:de:0030-drops-177575}, doi = {10.4230/LIPIcs.ICDT.2023.15}, annote = {Keywords: graph databases, conjunctive regular path queries, semantic optimization, tree-width, containment, approximation} }