The DOI matches its Crossref record; 23 of the 23 references it cites were found in a registry or an index.
Recovering semantics of tables on the web
Abstract
The Web offers a corpus of over 100 million tables [6], but the meaning of each table is rarely explicit from the table itself. Header rows exist in few cases and even when they do, the attribute names are typically useless. We describe a system that attempts to recover the semantics of tables by enriching the table with additional annotations. Our annotations facilitate operations such as searching for tables and finding related tables. To recover semantics of tables, we leverage a database of class labels and relationships automatically extracted from the Web. The database of classes and relationships has very wide coverage, but is also noisy. We attach a class label to a column if a sufficient number of the values in the column are identified with that label in the database of class labels, and analogously for binary relationships. We describe a formal model for reasoning about when we have seen sufficient evidence for a label, and show that it performs substantially better than a simple majority scheme. We describe a set of experiments that illustrate the utility of the recovered semantics for table search and show that it performs substantially better than previous approaches. In addition, we characterize what fraction of tables on the Web can be annotated using our approach.
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Chu, X., Morcos, J., Ilyas, I. F., Ouzzani, M., Papotti, P., Tang, N., & Ye, Y. (2015) · Proceedings of the 2015 ACM SIGMOD International Conference on Management of Data · doi:10.1145/2723372.2749431 · Cited by 279
Metadata
- Authors
- Venetis, P., Halevy, A., Madhavan, J., Paşca, M., Shen, W., Wu, F., Miao, G., & Wu, C.
- Venue
- Proceedings of the VLDB Endowment
- Published
- 2011-06
- Volume
- 4
- Issue
- 9
- Pages
- 528-538
- ISSN
- 2150-8097 (ISSN-L)
- OpenAlex
- W2092364718
- Cited by
- 340
- References
- 23
- FWCI
- 76.76
- Type
- journal article
- Language
- en
- Open access
- closed
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