Web Record Extraction with Invariants

Summary: Introduce invariants for Web data records to relax prior assumptions of uniform schemas and linear layouts, enabling discovery of heterogeneous, nested records on modern pages. Propose Miria, a bottom-up recursive algorithm that reconstructs records from invariants and outperforms prior extractors. (summarized by gpt-5-mini on Feb 09 2026)

Paper ID: 13534
Venue: VLDB
Year: 2023
Pagerank: 5.2534872e-05
Overall Rank: 9,436 | 35.49%
DOI: 10.14778/3574245.3574276

Incoming Non-self Citations Over Time

Authors

1. Zhijia Chen (Temple University)
2. Weiyi Meng (Binghamton University)
3. Eduard Dragut (Temple University)

BibTeX Citation

@article{chen_vldb23,
        title = {{Web Record Extraction with Invariants}},
        author = {Chen, Zhijia and Meng, Weiyi and Dragut, Eduard},
        journal = {PVLDB},
        series = {{VLDB} '23},
        volume = {16},
        number = {4},
        pages = {959--972},
        doi = {10.14778/3574245.3574276},
        url = {https://doi.org/10.14778/3574245.3574276},
        year = {2023}
}

Incoming Citations (Sorted by Pagerank)

Showing 1 of 1 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
10,454	Visual Template Inference for Data Extraction from Documents	2026	SIGMOD	5.0723324e-05

Outgoing Citations (Sorted by Pagerank)

Showing 12 of 12 cited papers.

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

Rank	Cited Paper	Year	Venue	Pagerank
91	WebTables: Exploring the Power of Tables on the Web	2008	VLDB	0.00034755718
1,321	Harvesting Relational Tables from Lists on the Web	2009	VLDB	0.00011140311
2,338	Record-Boundary Discovery in Web Documents	1999	SIGMOD	8.7098749e-05
3,595	TEGRA: Table Extraction by Global Record Alignment	2015	SIGMOD	7.2661269e-05
5,575	A Hierarchical Approach to Model Web Query Interfaces for Web Source Integration	2009	VLDB	6.1537249e-05
5,936	WADaR: Joint Wrapper and Data Repair	2015	VLDB	6.019595e-05
6,843	Web Data Extraction using Hybrid Program Synthesis: A Combination of Top-down and Bottom-up Inference	2020	SIGMOD	5.7422566e-05
7,471	Meaningful Labeling of Integrated Query Interfaces	2006	VLDB	5.5936873e-05
7,849	The Smallest Extraction Problem	2021	VLDB	5.5161615e-05
8,010	DEXTER: Large-Scale Discovery and Extraction of Product Specifications on the Web	2015	VLDB	5.4935172e-05
12,508	Deep Web Integration with VisQI	2010	VLDB	5.0723324e-05
12,771	Automatic Extraction of Dynamic Record Sections From Search Engine Result Pages	2006	VLDB	5.0723324e-05

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#	Overall Rank	Paper	Year	Venue
1	1,734	Structured Querying of Web Text: A Technical Challenge	2007	CIDR
2	2,092	An Analysis of Structured Data on the Web	2012	VLDB
3	2,415	Schema Extraction for Tabular Data on the Web	2013	VLDB
4	2,338	Record-Boundary Discovery in Web Documents	1999	SIGMOD
5	12,771	Automatic Extraction of Dynamic Record Sections From Search Engine Result Pages	2006	VLDB
6	5,575	A Hierarchical Approach to Model Web Query Interfaces for Web Source Integration	2009	VLDB
7	3,947	Exploiting Content Redundancy for Web Information Extraction	2010	VLDB
8	589	Extracting Structured Data from Web Pages	2003	SIGMOD
9	3,539	Using the Structure of Web Sites for Automatic Segmentation of Tables	2004	SIGMOD
10	2,301	Extraction and Integration of Partially Overlapping Web Sources	2013	VLDB