A hierarchical approach to wrapper induction
Proceedings of the third annual conference on Autonomous Agents
Generating finite-state transducers for semi-structured data extraction from the Web
Information Systems - Special issue on semistructured data
IEPAD: information extraction based on pattern discovery
Proceedings of the 10th international conference on World Wide Web
A brief survey of web data extraction tools
ACM SIGMOD Record
Automatic information extraction from semi-structured Web pages by pattern discovery
Decision Support Systems - Web retrieval and mining
RoadRunner: Towards Automatic Data Extraction from Large Web Sites
Proceedings of the 27th International Conference on Very Large Data Bases
Extracting structured data from Web pages
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
On the complexity of schema inference from web pages in the presence of nullable data attributes
CIKM '03 Proceedings of the twelfth international conference on Information and knowledge management
ViPER: augmenting automatic information extraction with visual perceptions
Proceedings of the 14th ACM international conference on Information and knowledge management
A Survey of Web Information Extraction Systems
IEEE Transactions on Knowledge and Data Engineering
Automatically maintaining wrappers for semi-structured web sources
Data & Knowledge Engineering
Extracting Web Data Using Instance-Based Learning
World Wide Web
Bootstrapping Information Extraction from Semi-structured Web Pages
ECML PKDD '08 Proceedings of the 2008 European Conference on Machine Learning and Knowledge Discovery in Databases - Part I
Information extraction for search engines using fast heuristic techniques
Data & Knowledge Engineering
Extracting Structured Data from Web Pages with Maximum Entropy Segmental Markov Model
WISE '09 Proceedings of the 10th International Conference on Web Information Systems Engineering
Extraction of user-defined data blocks using the regularity of dynamic web pages
ICIC'07 Proceedings of the intelligent computing 3rd international conference on Advanced intelligent computing theories and applications
Web news extraction based on path pattern mining
FSKD'09 Proceedings of the 6th international conference on Fuzzy systems and knowledge discovery - Volume 7
ObjectRunner: lightweight, targeted extraction and querying of structured web data
Proceedings of the VLDB Endowment
Extracting product descriptions from polish e-commerce websites using classification and clustering
ISMIS'11 Proceedings of the 19th international conference on Foundations of intelligent systems
Developer-friendly annotation-based HTML-to-XML transformation technology
Proceedings of the 11th ACM symposium on Document engineering
Extracting web data using instance-based learning
WISE'05 Proceedings of the 6th international conference on Web Information Systems Engineering
Data extraction from web pages based on structural-semantic entropy
Proceedings of the 21st international conference companion on World Wide Web
Peer matrix alignment: a new algorithm
PAKDD'12 Proceedings of the 16th Pacific-Asia conference on Advances in Knowledge Discovery and Data Mining - Volume Part II
TEX: An efficient and effective unsupervised Web information extractor
Knowledge-Based Systems
Web news extraction via path ratios
Proceedings of the 22nd ACM international conference on Conference on information & knowledge management
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Extracting information from semistructured Web documents is an important task for many information agents. Over the past few years, researchers have developed an extensive family of generic information extraction techniques based on supervised approaches that learn extraction rules from user-labeled training examples. However, annotating training data can be expensive when thousands of data sources must be wrapped. OLERA, a semisupervised IE system, produces extraction rules without detailed annotation of the training documents. Instead, it gives a rough segment that contains all that need to be extracted in one record as an example. OLERA is designed with visualization support such that it displays the discovered records in a spreadsheet-like table for schema assignment. Experiments show that OLERA performs well for program-generated Web pages with very few training pages and little user intervention.