DBScholar

Back to papers

Monadic Datalog and the Expressive Power of Languages for Web Information Extraction

Summary: Monadic datalog over ranked/unranked trees is equivalent to full MSO for web wrapping, proposing MSO as the expressiveness yardstick. Elog- (Lixto kernel) exactly captures MSO while remaining visually specifiable; formal comparisons to other wrappers. (summarized by gpt-5-mini on Feb 09 2026)

Paper ID
1247
Venue
PODS
Year
2002
Pagerank
9.0110009e-05
Overall Rank
2,180 | 85.05%
DOI
10.1145/543613.543617

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@inproceedings{gottlob_pods02,
        address = {New York, NY, USA},
        series = {{PODS} '02},
        title = {{Monadic Datalog and the Expressive Power of Languages for Web Information Extraction}},
        url = {https://dl.acm.org/doi/10.1145/543613.543617},
        doi = {10.1145/543613.543617},
        booktitle = {Proceedings of the {ACM} {SIGMOD} Symposium on {Principles} of {Database} {Systems}},
        publisher = {Association for Computing Machinery},
        author = {Gottlob, Georg and Koch, Christoph},
        year = {2002}
}

Incoming Citations (Sorted by Pagerank)

Showing 15 of 15 citing papers.

Previous Page 1 / 1 Next

Outgoing Citations (Sorted by Pagerank)

Showing 4 of 4 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank Cited Paper Year Venue Pagerank
348 Regular Path Queries with Constraints 1997 PODS 0.00020518814
2,564 Visual Web Information Extraction with Lixto 2001 VLDB 8.4118854e-05
2,708 Cut and Paste 1997 PODS 8.2272626e-05
2,969 Expressive and efficient pattern languages for tree-structured data (extended abstract) 2000 PODS 7.9147299e-05
Previous Page 1 / 1 Next

Semantically Similar Papers