Here a new concept called 'search heuristics' is introduced. A heuristic is a kind of 'shortcut' to good results in IT, here for good search results. In this case it will be used to get a very transparent way to compare what YaCy is able to produce as search result and what g**gle produces as search result. Here is what your can do now:
- add the phrase 'heuristic:scroogle' to your search query, like 'oil spill heuristic:scroogle' and then a call to scroogle is made to get anonymous search results from g**gle.
- these results are _not_ taken as meta-search results, but are used to instantly feed a crawling and indexing process. This happens very fast, here 20 results from scroogle are taken and loaded all simultanously, parsed and indexed immediately and from the results of the parsed content the search result is feeded, along to the normal p2p search
- when new results from that heuristic (more to come) get part of the search results, then it is verified if such results are redundant to existing (they had been part of the normal YaCy search result anyway) or if they had been completely new to YaCy.
- in the search results the new search results from heuristics are marked with a 'H ++' and search results from heuristics that had been already found by YaCy are marked with a 'H ='. That means:
- you can now see YaCy and Scroogle search results in one result page but you also see that you would not have 'missed' the g**gle results when you would only have used YaCy.
- to make it short: YaCy now subsumes g**gle results. If you use only YaCy, you miss nothing.
to come: a configuration page that let you configure the usage of heuristics and get this feature by default.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6944 6c8d7289-2bf4-0310-a012-ef5d649a1542
- fixes to http file server session handling
- fixes and enhancements to metadata date/time handling
- added dc:publisher metadata field and updated all document parser
- fixed bug in metdata read procedure
- enhanced dublin core and rss parser to understand more fields more properly
- enhanced url selection in case that multiple urls are given in surrogates
- fix for condenser; failure when last word does not end with termination symbol
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6863 6c8d7289-2bf4-0310-a012-ef5d649a1542
http://java.sun.com/javase/6/webnotes/trouble/TSG-VM/html/memleaks.html#gbyvh
The finalize method prevents that the memory, used by the objects containing the finalize method, is collected and available for the garbage collector. Instead, the memory allocated by such classes are enqueued to a java-internal finalize queue runner. This slows down all operations that uses a lot of object containing finalize methods.
this fix does not remove all finalize method, but such that may be used for throw-away objects that are allocated many times. This should cause a better run-time performance and less OutOfMemoryErrors
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6835 6c8d7289-2bf4-0310-a012-ef5d649a1542
this was done because that servlet may be used for wget/cronjob
triggered crawl starts and it appears to be confusing that the
name of the crawl start servlet looks like a pure monitoring tool.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6568 6c8d7289-2bf4-0310-a012-ef5d649a1542
- fixes for bad equals() methods that had not been used by hash maps and therefore some classes did not work as objects in hash maps.
- this may also affect some cases where double-checks should have been, but did not work.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6495 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added many stack trace outputs for exceptions in crawl profile handler to find the 'missing profile handle' bug
- catched one more timeout exception in httpd file loader
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6457 6c8d7289-2bf4-0310-a012-ef5d649a1542
- some documentation fixes
- adopted a default setting for the search window: moves css setting to base.css
- some enhancements for the DocumentIndex class
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6410 6c8d7289-2bf4-0310-a012-ef5d649a1542
sixcooler