So what in your opinion is the most effective way of removing boilerplates in Nutch crawls?
On Tue, Jun 11, 2013 at 12:12 PM, Markus Jelsma <markus.jel...@openindex.io>wrote: > Yes, Boilerpipe is complex and difficult to adapt. It also requires you to > preset an extraction algorithm which is impossible for us. I've created an > extractor instead that works for most pages and ignores stuff like news > overviews and major parts of homepages. It's also tightly coupled with our > date extractor (based on [1]) and language detector (based on LangDetect) > and image extraction. > > In many cases boilerpipe's articleextractor will work very well but date > extraction such as NUTCH-141 won't do the trick as it only works on > extracted text as a whole and does not consider page semantics. > > [1]: https://issues.apache.org/jira/browse/NUTCH-1414 > > -----Original message----- > > From:Joe Zhang <smartag...@gmail.com> > > Sent: Tue 11-Jun-2013 18:06 > > To: user <user@nutch.apache.org> > > Subject: Re: using Tika within Nutch to remove boiler plates? > > > > Any particular reason why you don't use boilerpipe any more? So what do > you > > suggest as an alternative? > > > > > > On Tue, Jun 11, 2013 at 5:41 AM, Markus Jelsma > > <markus.jel...@openindex.io>wrote: > > > > > we don't use Boilerpipe anymore so no point in sharing. Just set those > two > > > configuration options in nutch-site.xml as > > > > > > <property> > > > <name>tika.use_boilerpipe</name> > > > <value>true</value> > > > </property> > > > <property> > > > <name>tika.boilerpipe.extractor</name> > > > <value>ArticleExtractor</value> > > > </property> > > > > > > and it should work > > > > > > -----Original message----- > > > > From:Joe Zhang <smartag...@gmail.com> > > > > Sent: Tue 11-Jun-2013 01:42 > > > > To: user <user@nutch.apache.org> > > > > Subject: Re: using Tika within Nutch to remove boiler plates? > > > > > > > > Marcus, do you mind sharing a sample nutch-site.xml? > > > > > > > > > > > > On Mon, Jun 10, 2013 at 1:42 AM, Markus Jelsma > > > > <markus.jel...@openindex.io>wrote: > > > > > > > > > Those settings belong to nutch-site. Enable BP and set the correct > > > > > extractor and it should work just fine. > > > > > > > > > > > > > > > -----Original message----- > > > > > > From:Lewis John Mcgibbney <lewis.mcgibb...@gmail.com> > > > > > > Sent: Sun 09-Jun-2013 20:47 > > > > > > To: user@nutch.apache.org > > > > > > Subject: Re: using Tika within Nutch to remove boiler plates? > > > > > > > > > > > > Hi Joe, > > > > > > I've not used this feature, it would be great if one of the > others > > > could > > > > > > chime in here. > > > > > > From what I can infer from the correspondence on the issue, and > the > > > > > > available patches, you should be applying the most recent one > > > uploaded by > > > > > > Markus [0] as your starting point. This is dated as 22/11/2011. > > > > > > > > > > > > On Sun, Jun 9, 2013 at 11:00 AM, Joe Zhang <smartag...@gmail.com > > > > > wrote: > > > > > > > > > > > > > > > > > > > > One of the comments mentioned the following: > > > > > > > > > > > > > > tika.use_boilerpipe=true > > > > > > > tika.boilerpipe.extractor=ArticleExtractor|CanolaExtractor > > > > > > > > > > > > > > which part the code is it referring to? > > > > > > > > > > > > > > > > > > > > You will see this included in one of the earlier patches > uploaded by > > > > > Markus > > > > > > on 11/05/2011 [1] > > > > > > > > > > > > > > > > > > > > > > > > > > Also, within the current Nutch config, should I focus on > > > > > parse-plugin.xml? > > > > > > > > > > > > > > > > > > > > Look at the other patches and also Gabriele's comments. You may > most > > > > > likely > > > > > > need to alter something but AFAICT the work hasbeen done.. it's > just > > > a > > > > > case > > > > > > of pulling together several contributions. > > > > > > > > > > > > Maybe you should look at the patch for 2.x (uploaded most > recently by > > > > > > Roland) and see what is going on there. > > > > > > > > > > > > hth > > > > > > > > > > > > [0] > > > > > > > > > > > > > > > https://issues.apache.org/jira/secure/attachment/12504736/NUTCH-961-1.5-1.patch > > > > > > [1] > > > > > > > > > > > > > > > https://issues.apache.org/jira/secure/attachment/12478927/NUTCH-961-1.3-tikaparser1.patch > > > > > > > > > > > > > > > > > > > > >
