Conditional Random Fields: Probabilistic Models for Segmenting and Labeling Sequence Data
ICML '01 Proceedings of the Eighteenth International Conference on Machine Learning
RoadRunner: Towards Automatic Data Extraction from Large Web Sites
Proceedings of the 27th International Conference on Very Large Data Bases
Table extraction using conditional random fields
Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval
Extracting structured data from Web pages
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
Mining data records in Web pages
Proceedings of the ninth ACM SIGKDD international conference on Knowledge discovery and data mining
Automatic web news extraction using tree edit distance
Proceedings of the 13th international conference on World Wide Web
Fully automatic wrapper generation for search engines
WWW '05 Proceedings of the 14th international conference on World Wide Web
Web data extraction based on partial tree alignment
WWW '05 Proceedings of the 14th international conference on World Wide Web
2D Conditional Random Fields for Web information extraction
ICML '05 Proceedings of the 22nd international conference on Machine learning
Simultaneous record detection and attribute labeling in web data extraction
Proceedings of the 12th ACM SIGKDD international conference on Knowledge discovery and data mining
A Survey of Web Information Extraction Systems
IEEE Transactions on Knowledge and Data Engineering
Web page title extraction and its application
Information Processing and Management: an International Journal
Dynamic hierarchical Markov random fields and their application to web data extraction
Proceedings of the 24th international conference on Machine learning
A Unified Approach to Researcher Profiling
WI '07 Proceedings of the IEEE/WIC/ACM International Conference on Web Intelligence
News article extraction with template-independent wrapper
Proceedings of the 18th international conference on World wide web
Template-independent news extraction based on visual consistency
AAAI'07 Proceedings of the 22nd national conference on Artificial intelligence - Volume 2
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Most previous woks on web news article extraction only focus on its content and title. To meet the growing demand for the various web data integration applications, more useful news attributes, such as publication date, author, etc., need to be extracted structured stored for further processing. In this paper, we study the problem of automatically extracting multiple news attributes from news pages. Unlike the traditional ways(e.g. extracting news attributes separately or generating template-dependent wrappers), we propose an automatic, unified approach to extract them based on the visual features of news attributes which includes independent visual features and dependent visual features. The basic idea of our approach is that, first, the candidates of each news attribute are extracted from the news page based on their independent visual features, and then, the true value of each attribute is identified from the candidates based on dependent visual features(the layout relations among news attributes). The extensive experiments using a large number of news pages show that the proposed approach is highly effective and efficient.