@InProceedings{li_et_al:LIPIcs.ICDT.2019.11, author = {Li, Yuliang and Wang, Jianguo and Pullman, Benjamin and Bandeira, Nuno and Papakonstantinou, Yannis}, title = {{Index-Based, High-Dimensional, Cosine Threshold Querying with Optimality Guarantees}}, booktitle = {22nd International Conference on Database Theory (ICDT 2019)}, pages = {11:1--11:20}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-101-6}, ISSN = {1868-8969}, year = {2019}, volume = {127}, editor = {Barcelo, Pablo and Calautti, Marco}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ICDT.2019.11}, URN = {urn:nbn:de:0030-drops-103135}, doi = {10.4230/LIPIcs.ICDT.2019.11}, annote = {Keywords: Vector databases, Similarity search, Cosine, Threshold Algorithm} }