What are some good algorithms for automatically labeling text with the city / region or origin? That is, if a blog is about New York, how can I tell programatically. Are there packages / papers that claim to do this with any degree of certainty? I have looked at some tfidf based approaches, proper noun intersections, but so far, no...
I am looking for a simple but "good enough" Named Entity Recognition library (and dictionary) for java, I am looking to process emails and documents and extract some "basic information" like: Names, places, Address and Dates I've been looking around, and most seems to be on the heavy side and full NLP kind of projects. Any recommendat...
What are the best algorithms for recognizing structured data on an HTML page? For example Google will recognize the address of home/company in an email, and offers a map to this address. ...
I'm interested in learning more about Natural Language Processing (NLP) and am curious if there are currently any strategies for recognizing proper nouns in a text that aren't based on dictionary recognition? Also, could anyone explain or link to resources that explain the current dictionary-based methods? Who are the authoritative exper...
Hello! I would like to use named entity recognition (NER) to find adequate tags for texts in a database. I know there is a Wikipedia article about this and lots of other pages describing NER, I would preferably hear something about this topic from you: What experiences did you make with the various algorithms? Which algorithm would y...
I have some input text, which contains one or more human person names. I do not have any dictionary for these names. Which Java library can help me to define names from my input text? I looked through OpenNLP, but did not find any example or guide or at least description of how it can be applied into my code. (I saw javadoc, but it is pr...
What is Conditional Random Field? How does exactly Conditional Random Field identify proper names as person, organization, or place in a structured or unstructured text? For example: This product is ordered by StackOverFlow Inc. What does Conditional Random Field do to identify StackOverFlow Inc. a...
Opencalais lets you submit a string (REST API) ....and it will analyze that string and break it down into named-entities, relationships, keywords, etc. Are there better tools other than opencalais? (both free and commercial) ...
Hello I wanted to know if there are any paid or free named entity recognition web services available. Basically I'm looking for something - where if I pass a text like: "John had french fries at Burger King" It should be identify - something along the lines: Person: John Organization: Burger King I've heard of Annie from GATE - but ...
I have a list of strings (company names, in this case), and a Java program that extracts a list of things that look like company names out of mostly-unstructured text. I need to match each element of extracted text to a string in the list. Caveat: the unstructured text has typos, things like "Blah, Inc." referred to as "Blah," etc. I'v...