Close
Enter your search into one or more of the boxes below:
You can refine your search by selecting from any of the options below:
Search
Unsupervised Information Extraction by Text Segmentation

Unsupervised Information Extraction by Text Segmentation (Paperback)

£44.99
Printed to order. Despatched in 2-3 weeks.
Email me when back in stock

Synopsis

A new unsupervised approach to the problem of Information Extraction by Text Segmentation (IETS) is proposed, implemented and evaluated herein. The authors' approach relies on information available on pre-existing data to learn how to associate segments in the input string with attributes of a given domain relying on a very effective set of content-based features. The effectiveness of the content-based features is also exploited to directly learn from test data structure-based features, with no previous human-driven training, a feature unique to the presented approach. Based on the approach, a number of results are produced to address the IETS problem in an unsupervised fashion. In particular, the authors develop, implement and evaluate distinct IETS methods, namely ONDUX, JUDIE and iForm.



ONDUX (On Demand Unsupervised Information Extraction) is an unsupervised probabilistic approach for IETS that relies on content-based features to bootstrap the learning of structure-based features. JUDIE (Joint Unsupervised Structure Discovery and Information Extraction) aims at automatically extracting several semi-structured data records in the form of continuous text and having no explicit delimiters between them. In comparison with other IETS methods, including ONDUX, JUDIE faces a task considerably harder that is, extracting information while simultaneously uncovering the underlying structure of the implicit records containing it. iForm applies the authors' approach to the task of Web form filling. It aims at extracting segments from a data-rich text given as input and associating these segments with fields from a target Web form.



All of these methods were evaluated considering different experimental datasets, which are used to perform a large set of experiments in order to validate the presented approach and methods. These experiments indicate that the proposed approach yields high quality results when compared to state-of-the-art approaches and that it is able to properly support IETS methods in a number of real applications. The findings will prove valuable to practitioners in helping them to understand the current state-of-the-art in unsupervised information extraction techniques, as well as to graduate and undergraduate students of web data management.

Computing & ITDatabasesData miningComputing & ITDatabasesInformation retrieval Publisher: Springer International Publishing AG Publication Date: 23/10/2013 ISBN-13: 9783319025964  Details: Type: Paperback Format: Books
Availability: Printed to order. Despatched in 2-3 weeks.  

More books by Eli Cortez

More books by Altigran S. Silva

Leave Review

Delivery

Delivery Options

All delivery times quoted are the average, and cannot be guaranteed. These should be added to the availability message time, to determine when the goods will arrive. During checkout we will give you a cumulative estimated date for delivery.

Location 1st Book Each additional book Average Delivery Time
UK Standard Delivery FREE FREE 3-5 Days
UK First Class £4.50 £1.00 1-2 Days
UK Courier £7.00 £1.00 1-2 Days
Western Europe** Courier £17.00 £3.00 2-3 Days
Western Europe** Airmail £5.00 £1.50 4-14 Days
USA / Canada Courier £20.00 £3.00 2-4 Days
USA / Canada Airmail £7.00 £3.00 4-14 Days
Rest of World Courier £22.50 £3.00 3-6 Days
Rest of World Airmail £8.00 £3.00 7-21 Days

** Includes Austria, Belgium, Denmark, France, Germany, Greece, Iceland, Irish Republic, Italy, Luxembourg, Netherlands, Portugal, Spain, Sweden and Switzerland.

Delivery Help & FAQs

Returns Information

If you are not completely satisfied with your purchase*, you may return it to us in its original condition with in 30 days of receiving your delivery or collection notification email for a refund. Except for damaged items or delivery issues the cost of return postage is borne by the buyer. Your statutory rights are not affected.

* For Exclusions and terms on damaged or delivery issues see Returns Help & FAQs

You might also like

Getting Started with Kudu
(Paperback)
Jean-Marc Spaggiari; Mladen ...
 
 
£39.99
 
Data Analytics with Spark Using Python
(Hardback)
Jeffrey Aven
 
 
£35.99
 
Monetising Data: How to Uplift Your...
(Hardback)
Andrea Ahlemeyer-Stubbe; Shirley...
 
 
£50.00
 
Foundations and Methods in...
(Paperback)
Israel Cesar Lerman
 
 
£149.99
 

Currently out of stock

Latest Blog
Max Porter on the Portobello Prize
24/04/2018

What makes great non-fiction? And how do you tell a true story? To celebrate the inaugural Portobello Prize for Narrative Non-Fiction, on 1st May 2018 we're hosting an evening with Portobello Books — a panel discussion on the nature of non-fiction writing in today's literary landscape, followed by the announcement of the first ever winner of the Prize.

Women's Prize for Fiction 2018 Shortlist
23/04/2018

This year's shortlist for the Women's Prize for Fiction has been announced

Read an extract from Everything I Know About Love
20/04/2018

Dolly Alderton's Everything I Know About Love is an honest, funny and uplifting account of growing up and being enough.

View all Blog Entries
Twitter
Show/Hide Tweets
© W&G Foyle Ltd