auto tagging for feeds ?

as in regular drupal feed aggregator's categories... Yes that would be very useful to create general channels

OpenCalais.module uses what they call Semantic Proxy to auto tag feeds. With each feed item you get a title, link, image, body mapped as normal and then the Semantic Proxy will read the whole story on the original website and return what it thinks(sic) in RDF the meaning of the content with very relevant terms and categories. More importantly within Drupal it uses a relevancy algorythm to determin common topics within articles and web content.

One story will be about Obama and health care, a second story will be about Hillary Clinton and health care, a third story will be about Obama and the economy, and the fourth story will be about Clinton and Canada and Hockey. Based on relevancy it will group the first two stories together. Of course, it's a little more involved where it determines the relevancy of each term TO each article and comparing how many relevant terms that pass a configurable threshold any two stories share.

Semantic Proxy will not work with Managing News because it will not work with the Feeds module. (It might by I tried in earnest and it didn't.) The OpenCalais module does a wonderful job of Geo Tagging of locations that it thinks that story is about. Because a story mentions Paris doesn't mean that it is about Paris. Calais determines that a story is about the Kremlin and Moscow with a person who spoke on the phone to Paris, therefore it's not about Paris and it doesn't tag it. Kinda smart. Of course, much to my chagrin OpenCalais functions tightly with Gmaps.module not OpenLayers.

It's really silly that Managing News does not utilize the Semantic Proxy. I use Google News to manage news and it does fantastic work. After a day of fiddling with MN, I decided to lay it to rest. But, not without making a suggestion that they get together with the OpenCalais people so you'all can port OpenCalais to use Feeds.module and OpenLayers.module. Not only to the benefit of the people who are starting to use Managing News but to those of us who are using OpenPublish.

http://semanticproxy.opencalais.com/demo.html Throw in a link to CNN or the Huffington Post and see what your missing.
http://viewer.opencalais.com/ Copy and past a New York Times article and be impressed at how well it parses it and returns relevant, important tags.

This is not a feature request for Feeds but rather for extractor: Extractor. In fact, it would be rather easy to extend extractor to plug into Open Calais or similar.

Ideally we could get some time and merge Auto tagging and Extractor into one pluggable, node-independent tagging abstraction layer.

This is a question of time and resources. Right now I personally don't plan on moving on any of this. I would accept patches to extractor though or I would be available for hammering out a way forward on a common future of Extractor and Auto tagging.

Think MN should find a way to use Opean Calais, currently big part of MN is maps and putting news on map, but this maps put news in wrong locations many times, as way of determening location of news is not good enough.

did you try using yahoo placemaker ?

The initial feature request actually looks for #784928: Taxonomy inheritance

The title sounds more like this feature request though: #864362: Unify Channel tags with Location vocabulary

Any requests to support OpenCalais or similar other services should be broken out in separate issues. Closing this one as duplicate to the ones above.