Hi Prof Mattmann, You are saying "train" and "model", are we expected to use machine learning algorithms to train model for duplication detection?
Thanks, Renxia On Sun, Feb 22, 2015 at 8:39 PM, Mattmann, Chris A (3980) < [email protected]> wrote: > There is nothing stating in your assignment that you can’t > use *previously* crawled data to train your model - you > should have at least 2 full sets of this. > > Cheers, > Chris > > > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > Chris Mattmann, Ph.D. > Chief Architect > Instrument Software and Science Data Systems Section (398) > NASA Jet Propulsion Laboratory Pasadena, CA 91109 USA > Office: 168-519, Mailstop: 168-527 > Email: [email protected] > WWW: http://sunset.usc.edu/~mattmann/ > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > Adjunct Associate Professor, Computer Science Department > University of Southern California, Los Angeles, CA 90089 USA > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > > > > > > -----Original Message----- > From: Majisha Parambath <[email protected]> > Reply-To: "[email protected]" <[email protected]> > Date: Sunday, February 22, 2015 at 8:30 PM > To: dev <[email protected]> > Subject: Re: How to read metadata/content of an URL in URLFilter? > > > > > > > > >My understanding is that the LinkDB or CrawlDB will contain the results > >of previously fetched and parsed pages. > > > >However if we want to get the contents of a URL/page in the URL Filtering > >stage( > >which is not yet fetched) , is there any util in Nutch that we can use > >to fetch the contents of the page ? > > > > > >Thanks and regards, > >Majisha Namath Parambath > >Graduate Student, M.S in Computer Science > >Viterbi School of Engineering > >University of Southern California, Los Angeles > > > > > > > > > > > > > >On Sun, Feb 22, 2015 at 4:53 PM, Mattmann, Chris A (3980) > ><[email protected]> wrote: > > > >In the constructor of your URLFilter, why not consider passing > >in a NutchConfiguration object, and then reading the path to e.g, > >the LinkDb from the config. Then have a private member variable > >for the LinkDbReader (maybe static initialized for efficiency) > >and use that in your interface method. > > > >Cheers, > >Chris > > > >++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > >Chris Mattmann, Ph.D. > >Chief Architect > >Instrument Software and Science Data Systems Section (398) > >NASA Jet Propulsion Laboratory Pasadena, CA 91109 USA > >Office: 168-519, Mailstop: 168-527 > >Email: [email protected] > >WWW: http://sunset.usc.edu/~mattmann/ > >++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > >Adjunct Associate Professor, Computer Science Department > >University of Southern California, Los Angeles, CA 90089 USA > >++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > > > > > > > > > > > > >-----Original Message----- > >From: Renxia Wang <[email protected]> > >Reply-To: "[email protected]" <[email protected]> > >Date: Sunday, February 22, 2015 at 3:36 PM > >To: "[email protected]" <[email protected]> > >Subject: How to read metadata/content of an URL in URLFilter? > > > >> > >> > >> > >>Hi > >> > >> > >>I want to develop an UrlFIlter which takes an url, takes its metadata or > >>even the fetched content, then use some duplicate detection algorithms to > >>determine if it is a duplicate of any url in bitch. However, the only > >>parameter passed into the Urlfilter > >> is the url, is it possible to get the data I want of that input url in > >>Urlfilter? > >> > >> > >>Thanks, > >> > >> > >>Zhique > > > > > > > > > > > > > > > > > > > >
