Well... IMHO that depends. One of the services we provide is a "automatic clipping" in which our client chooses 20~30 texts from the media he woud like to be aware. With classification algorithms we then keep him aware of every new text of his interest. We gained about 10% of precision just by adding EE information to the algorithm.
Rossini On Mon, Oct 27, 2008 at 2:17 PM, Walter Underwood <[EMAIL PROTECTED]>wrote: > The vendor mentioned entity extraction, but that doesn't mean you need it. > Entity extraction is a pretty specific technology, and it has been a > money-losing product at many companies for many years, going back to > Xerox ThingFinder well over ten years ago. > > My guess is that very few people really need entity extraction. > > Using EE for automatic taxonomy generation is even harder to get right. > At best, that is a way to get a starter set of categories that you can > edit. You will not get a production quality taxonomy automatically. > > wunder > > On 10/27/08 8:31 AM, "Charlie Jackson" <[EMAIL PROTECTED]> wrote: > > > True, though I may be able to convince the powers that be that it's worth > the > > investment. > > > > There are a number of open source or free tools listed on the Wikipedia > entry > > for entity extraction > > ( > http://en.wikipedia.org/wiki/Named_entity_recognition#Open_source_or_free) > -- > > does anyone have any experience with any of these? > > > > ____________________________________________ > > Charlie Jackson > > 312-873-6537 > > [EMAIL PROTECTED] > > > > -----Original Message----- > > From: Otis Gospodnetic [mailto:[EMAIL PROTECTED] > > Sent: Monday, October 27, 2008 10:23 AM > > To: solr-user@lucene.apache.org > > Subject: Re: Entity extraction? > > > > For the record, LingPipe is not free. It's good, but it's not free. > > > > > > Otis > > -- > > Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch > > > > > > > > ----- Original Message ---- > >> From: Rafael Rossini <[EMAIL PROTECTED]> > >> To: solr-user@lucene.apache.org > >> Sent: Friday, October 24, 2008 6:08:14 PM > >> Subject: Re: Entity extraction? > >> > >> Solr can do a simple facet seach like FAST, but the entity extraction > >> demands other tecnologies. I do not know how FAST does it but at the > company > >> I´m working on (www.cortex-intelligence.com), we use a mix of > statistical > >> and language-specific tasks to recognize and categorize entities in the > >> text. Ling Pipe is another tool (free) that does that too. In case you > would > >> like to see a simple demo: http://www.cortex-intelligence.com/tech/ > >> > >> Rossini > >> > >> > >> On Fri, Oct 24, 2008 at 6:18 PM, Charlie Jackson > >>> wrote: > >> > >>> During a recent sales pitch to my company by FAST, they mentioned > entity > >>> extraction. I'd never heard of it before, but they described it as > >>> basically recognizing people/places/things in documents being indexed > >>> and then being able to do faceting on this data at query time. Does > >>> anything like this already exist in SOLR? If not, I'm not opposed to > >>> developing it myself, but I could use some pointers on where to start. > >>> > >>> > >>> > >>> Thanks, > >>> > >>> - Charlie > >>> > >>> > > > > > > > >
