Pengyuan Li 0007

dblp:291/3428 · DBLP profile ↗
← Back
3ranked-venue papers
1as first author
3since 2021 · last 2026
—ORCID · unresolved

Domains — the database's venue-derived domains; a paper can count in several

Databases, data management, data science and information retrieval · 3 · 1 first-author · 3 since 2021
YearPublicationVenuePosition
2026 In-memory Incremental Maintenance of Provenance Sketches
Pengyuan Li 0007, Boris Glavic, Dieter Gawlick, Vasudha Krishnaswamy, Zhen Hua Liu, Danica Porobic, Xing Niu 0002
EDBT1
2024 Towards an Objective Metric for Data Value Through Relevance
Boris Glavic, Pengyuan Li 0007, Dieter Gawlick, Vasudha Krishnaswamy, Danica Porobic, Zhen Hua Liu
CIDR2
2021 Provenance-based Data Skipping
abstract
Database systems use static analysis to determine upfront which data is needed for answering a query and use indexes and other physical design techniques to speed-up access to that data. However, for important classes of queries, e.g., HAVING and top-k queries, it is impossible to determine up-front what data is relevant. To overcome this limitation, we develop provenance-based data skipping (PBDS), a novel approach that generates provenance sketches to concisely encode what data is relevant for a query. Once a provenance sketch has been captured it is used to speed up subsequent queries. PBDS can exploit physical design artifacts such as indexes and zone maps.
Xing Niu 0002, Boris Glavic, Pengyuan Li 0007, Dieter Gawlick, Vasudha Krishnaswamy, Zhen Hua Liu, Danica Porobic
Proc. VLDB Endow.4