Information extraction from HTML: application of a general machine learning approach
AAAI '98/IAAI '98 Proceedings of the fifteenth national/tenth conference on Artificial intelligence/Innovative applications of artificial intelligence
Learning Information Extraction Rules for Semi-Structured and Free Text
Machine Learning - Special issue on natural language learning
Information Extraction: Techniques and Challenges
SCIE '97 International Summer School on Information Extraction: A Multidisciplinary Approach to an Emerging Information Technology
Relational learning techniques for natural language information extraction
Relational learning techniques for natural language information extraction
Automatic acquisition of domain knowledge for Information Extraction
COLING '00 Proceedings of the 18th conference on Computational linguistics - Volume 2
Amilcare: adaptive information extraction for document annotation
SIGIR '02 Proceedings of the 25th annual international ACM SIGIR conference on Research and development in information retrieval
Adaptive information extraction for document annotation in amilcare
SIGIR '02 Proceedings of the 25th annual international ACM SIGIR conference on Research and development in information retrieval
Human Language Technologies for Knowledge Management
IEEE Intelligent Systems
MnM: Ontology Driven Semi-automatic and Automatic Support for Semantic Markup
EKAW '02 Proceedings of the 13th International Conference on Knowledge Engineering and Knowledge Management. Ontologies and the Semantic Web
S-CREAM - Semi-automatic CREAtion of Metadata
EKAW '02 Proceedings of the 13th International Conference on Knowledge Engineering and Knowledge Management. Ontologies and the Semantic Web
User-System Cooperation in Document Annotation Based on Information Extraction
EKAW '02 Proceedings of the 13th International Conference on Knowledge Engineering and Knowledge Management. Ontologies and the Semantic Web
WWW '03 Proceedings of the 12th international conference on World Wide Web
A maximum entropy approach to information extraction from semi-structured and free text
Eighteenth national conference on Artificial intelligence
Bottom-up relational learning of pattern matching rules for information extraction
The Journal of Machine Learning Research
Towards the self-annotating web
Proceedings of the 13th international conference on World Wide Web
LearningPinocchio: adaptive information extraction for real world applications
Natural Language Engineering
Information Extraction from the Web: System and Techniques
Applied Intelligence
ACM SIGKDD Explorations Newsletter
Gimme' the context: context-driven automatic semantic annotation with C-PANKOW
WWW '05 Proceedings of the 14th international conference on World Wide Web
Mining web sites using adaptive information extraction
EACL '03 Proceedings of the tenth conference on European chapter of the Association for Computational Linguistics - Volume 2
Unsupervised learning of generalized names
COLING '02 Proceedings of the 19th international conference on Computational linguistics - Volume 1
Closing the gap: learning-based information extraction rivaling knowledge-engineering methods
ACL '03 Proceedings of the 41st Annual Meeting on Association for Computational Linguistics - Volume 1
Unsupervised named-entity extraction from the web: an experimental study
Artificial Intelligence
Mining information extraction rules from datasheets without linguistic parsing
IEA/AIE'2005 Proceedings of the 18th international conference on Innovations in Applied Artificial Intelligence
Using HLT for acquiring, retrieving and publishing knowledge in AKT: position paper
HLTKM '01 Proceedings of the workshop on Human Language Technology and Knowledge Management - Volume 2001
Generating extraction patterns from a large semantic network and an untagged corpus
SEMANET '02 Proceedings of the 2002 workshop on Building and using semantic networks - Volume 11
Ontology-based linguistic annotation
LingAnnot ;03 Proceedings of the ACL 2003 workshop on Linguistic annotation: getting the model right - Volume 19
IEEE Intelligent Systems
Adapting Web information extraction knowledge via mining site-invariant and site-dependent features
ACM Transactions on Internet Technology (TOIT)
Combining Information Extraction Systems Using Voting and Stacked Generalization
The Journal of Machine Learning Research
Hierarchical rule generalisation for speaker identification in fiction books
SAICSIT '06 Proceedings of the 2006 annual research conference of the South African institute of computer scientists and information technologists on IT research in developing countries
Cascading use of soft and hard matching pattern rules for weakly supervised information extraction
COLING '04 Proceedings of the 20th international conference on Computational Linguistics
Automatic extraction of paraphrastic phrases from medium size corpora
COLING '04 Proceedings of the 20th international conference on Computational Linguistics
Composition of conditional random fields for transfer learning
HLT '05 Proceedings of the conference on Human Language Technology and Empirical Methods in Natural Language Processing
Extraction and use of linguistic patterns for modelling medical guidelines
Artificial Intelligence in Medicine
Ontologies as facilitators for repurposing web documents
International Journal of Human-Computer Studies
The Journal of Machine Learning Research
ARE: instance splitting strategies for dependency relation-based information extraction
COLING-ACL '06 Proceedings of the COLING/ACL on Main conference poster sessions
Ontology based document annotation: trends and open research problems
International Journal of Metadata, Semantics and Ontologies
Negation recognition in medical narrative reports
Information Retrieval
Ontology-based information extraction and integration from heterogeneous data sources
International Journal of Human-Computer Studies
Using the Web to Reduce Data Sparseness in Pattern-Based Information Extraction
PKDD 2007 Proceedings of the 11th European conference on Principles and Practice of Knowledge Discovery in Databases
Self-supervised relation extraction from the Web
Knowledge and Information Systems
A method for extracting knowledge from medical texts including numerical representation
International Journal of Computer Applications in Technology
Towards a System for Ontology-Based Information Extraction from PDF Documents
OTM '08 Proceedings of the OTM 2008 Confederated International Conferences, CoopIS, DOA, GADA, IS, and ODBASE 2008. Part II on On the Move to Meaningful Internet Systems
Foundations and Trends in Databases
Learning context-free grammars to extract relations from text
Proceedings of the 2008 conference on ECAI 2008: 18th European Conference on Artificial Intelligence
CACLA '09 Proceedings of the EACL 2009 Workshop on Cognitive Aspects of Computational Language Acquisition
Automating knowledge capture in the aerospace domain
Proceedings of the fifth international conference on Knowledge capture
Regular expression learning for information extraction
EMNLP '08 Proceedings of the Conference on Empirical Methods in Natural Language Processing
Exploiting subjectivity classification to improve information extraction
AAAI'05 Proceedings of the 20th national conference on Artificial intelligence - Volume 3
Creating relational data from unstructured and ungrammatical data sources
Journal of Artificial Intelligence Research
Bayesian information extraction network
IJCAI'03 Proceedings of the 18th international joint conference on Artificial intelligence
Semantic annotation of unstructured and ungrammatical text
IJCAI'05 Proceedings of the 19th international joint conference on Artificial intelligence
Unsupervised named-entity extraction from the Web: An experimental study
Artificial Intelligence
Exploiting background knowledge to build reference sets for information extraction
IJCAI'09 Proceedings of the 21st international jont conference on Artifical intelligence
Introduction to "Rule Transformation and Extraction" Track
RuleML '09 Proceedings of the 2009 International Symposium on Rule Interchange and Applications
International Journal of Computers and Applications
Ontological technologies for user modelling
International Journal of Metadata, Semantics and Ontologies
Combining relations for information extraction from free text
ACM Transactions on Information Systems (TOIS)
Fuzzy pattern rule induction for information extraction
ISICA'07 Proceedings of the 2nd international conference on Advances in computation and intelligence
Analysis of a probabilistic model of redundancy in unsupervised information extraction
Artificial Intelligence
AND '10 Proceedings of the fourth workshop on Analytics for noisy unstructured text data
Constructing reference sets from unstructured, ungrammatical text
Journal of Artificial Intelligence Research
Authoring technical documents for effective retrieval
EKAW'10 Proceedings of the 17th international conference on Knowledge engineering and management by the masses
Using web-based knowledge extraction techniques to support cultural modeling
SBP'11 Proceedings of the 4th international conference on Social computing, behavioral-cultural modeling and prediction
Peeling back the layers: detecting event role fillers in secondary contexts
HLT '11 Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies - Volume 1
Enabling information extraction by inference of regular expressions from sample entities
Proceedings of the 20th ACM international conference on Information and knowledge management
LKMS: a legal knowledge management system exploiting semantic web technologies
ISWC'05 Proceedings of the 4th international conference on The Semantic Web
Self-supervised relation extraction from the web
ISMIS'06 Proceedings of the 16th international conference on Foundations of Intelligent Systems
ESpotter: adaptive named entity recognition for web browsing
WM'05 Proceedings of the Third Biennial conference on Professional Knowledge Management
On the need to bootstrap ontology learning with extraction grammar learning
ICCS'05 Proceedings of the 13th international conference on Conceptual Structures: common Semantics for Sharing Knowledge
Extracting structured subject information from digital document archives
ICADL'06 Proceedings of the 9th international conference on Asian Digital Libraries: achievements, Challenges and Opportunities
Learning to adapt cross language information extraction wrapper
Applied Intelligence
Bootstrapped training of event extraction classifiers
EACL '12 Proceedings of the 13th Conference of the European Chapter of the Association for Computational Linguistics
Improving recall of regular expressions for information extraction
WISE'12 Proceedings of the 13th international conference on Web Information Systems Engineering
Learning to predict from textual data
Journal of Artificial Intelligence Research
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(LP)2 is a covering algorithm for adaptive Information Extraction from text (IE). It induces symbolic rules that insert SGML tags into texts by learning from examples found in a user-defined tagged corpus. Training is performed in two steps: initially a set of tagging rules is learned; then additional rules are induced to correct mistakes and imprecision in tagging. Induction is performed by bottom-up generalization of examples in the training corpus. Shallow knowledge about Natural Language Processing (NLP) is used in the generalization process. The algorithm has a considerable success story. From a scientific point of view, experiments report excellent results with respect to the current state of the art on two publicly available corpora. From an application point of view, a successful industrial IE tool has been based on (LP)2. Real world applications have been developed and licenses have been released to external companies for building other applications. This paper presents (LP)2, experimental results and applications, and discusses the role of shallow NLP in rule induction.