# Efficient Evaluation and Approximation of Well-designed Pattern Trees

> Research article (Proceedings of the 34th ACM SIGMOD-SIGACT-SIGAI  Symposium on Principles of Database Systems, 2015) · cited 23× · AI/ML

**Wikidata**: [openalex:W1967827263](https://www.wikidata.org/wiki/openalex:W1967827263)  
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