AMRITA_CEN-NLP@FIRE 2015: CRF Based Named Entity Extractor For Twitter Microposts.
Sanjay S. P.M. Anand KumarK. P. SomanPublished in: FIRE Workshops (2015)
Keyphrases
- named entities
- named entity recognition
- information extraction
- natural language processing
- conditional random fields
- social media
- relation extraction
- question answering
- named entity extraction
- text mining
- co occurrence
- contextual features
- annotated corpus
- text documents
- named entity recognizer
- machine learning
- markov random field
- wordnet
- maximum entropy
- proper names
- higher order
- hidden markov models
- information retrieval
- weakly supervised
- linguistic features
- pairwise
- machine translation
- feature space
- noun phrases
- global context
- data mining
- real world
- generative model
- maximum entropy model
- computer vision
- word sense disambiguation
- unsupervised learning