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Here is a link to the live demo: http://nlp.stanford.edu:8080/sentiment/rntnDemo.html http://nlp.stanford.edu:8080/sentiment/rntnDemo.html This is really fun t

Here is a link to the live demo: http://nlp.stanford.edu:8080/sentiment/rntnDemo.html http://nlp.stanford.edu:8080/sentiment/rntnDemo.html This is really fun to play with, and I'm surprised how well it can parse the sentiment of sample sentences I threw at it. I've tried a couple random examples (like "I don't know what the artist was smoking, but the song made no sense (though I liked the beat!)") and have not yet gotten a wrong analysis. Even the phrase parsing is pretty spot-on. As a side note, this is much more interesting than the "sediment" analysis I excepted after skimming the title. (Unfortunately though, the analyzer got this final sentence wrong: http://cl.ly/image/301u1q46263m http://cl.ly/image/301u1q46263m) Edit: seems like this system could get significantly more robust with more data. If you look in the comments section, you can see some comments from the professor himself, i.e. "Possibly because the word "buying", only appears once in the entire dataset and it's in a pretty negative context: http://nlp.stanford.edu/sentiment/treebank.html?w=buying" http://nlp.stanford.edu/sentiment/treebank.html?w=buying" If you gave it 100,000 phrases, I wouldn't be surprised if it could hit the 95% mark that Socher mentions.

cantrevealname 13y ago
> I'm surprised how well it can parse the sentiment I tried to fool it, but it took quite a bit of effort to contrive a sentence that it got wrong. The sentence I finally fooled it with: --> I enjoy clipping my toenails to paying any more attention to this movie. which it rated as highly positive.
- eulerphi 13y ago
  Your sentence is malformed. It should be "I'd enjoy clipping my toenails to paying any more attention to this movie." Still, I'm not even sure if using the preposition "to" in that manner is proper english.
  - telephonetemp 13y ago
    It isn't proper English. A proper version of this sentence could be "I'd prefer clipping my toenails to paying any more attention to this movie" but even then the "paying any more attention" part would probably cause a human sentiment analyser to do a double take at it.
    - StavrosK 13y ago
      The software above correctly rates this as negative.
- andrevoget 13y ago
  I could fool the algorithm with: "Only the book cover was good."
- ksrm 13y ago
  It does seem to struggle here. >I'd enjoy clipping my toenails more than paying any more attention to this movie. --> positive >I'd enjoy clipping my toenails over paying any more attention to this movie. --> negative If you change "paying" to "giving" it classes that clause as neutral instead of negative, but doesn't change the result.
- deleted 13y ago
  [deleted]
ph0rque 13y ago
I tried to fool it with, "My excitement for the movie, as well as the director's IQ, was room temperature... in Celsius." and while the individual words were either positive, neutral, or unknown, the overall sentence was negative. I'm impressed!
6ren 13y ago
"It thinks it's just so smart."
ntoshev 13y ago
I fed it with "I'm surprised how well it can parse the sentiment of sample sentences I threw at it." and it thought that was negative - so I corrected it. The whole level of interaction and transparency with the model is great. "Buy" occurs 12 times. I wonder if stemming could help.
kelvin0 13y ago
The sentence: "It is refreshingly unoriginal and an utter failed masterpiece at best" is parsed as being positive ... I guess the sarcasm detector still needs some work :)
kelvin0 13y ago
Also read as Positive: "It is refreshingly boring and is a monument to the achievement of utter platitudes"
deleted 13y ago
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ksrm 13y ago
To really put it through its paces you need to feed it reviews of The Room[1] from imdb: >It is, without question, the worst film ever made. (--) But this comment is in no way meant to be discouraging. (-) Because while The Room is the worst movie ever made it is also the greatest way to spend a blisteringly fast 100 minutes in the dark. (--) Simply put, 'The Room' will change your life. (0) [1] http://www.imdb.com/title/tt0368226/ http://www.imdb.com/title/tt0368226/
FelixP 13y ago
It failed on "Are you sure that's a good idea?"

cantrevealname 13y ago

> I'm surprised how well it can parse the sentiment I tried to fool it, but it took quite a bit of effort to contrive a sentence that it got wrong. The sentence I finally fooled it with: --> I enjoy clipping my toenails to paying any more attention to this movie. which it rated as highly positive.

eulerphi 13y ago
Your sentence is malformed. It should be "I'd enjoy clipping my toenails to paying any more attention to this movie." Still, I'm not even sure if using the preposition "to" in that manner is proper english.
- telephonetemp 13y ago
  It isn't proper English. A proper version of this sentence could be "I'd prefer clipping my toenails to paying any more attention to this movie" but even then the "paying any more attention" part would probably cause a human sentiment analyser to do a double take at it.
  - StavrosK 13y ago
    The software above correctly rates this as negative.
andrevoget 13y ago
I could fool the algorithm with: "Only the book cover was good."
ksrm 13y ago
It does seem to struggle here. >I'd enjoy clipping my toenails more than paying any more attention to this movie. --> positive >I'd enjoy clipping my toenails over paying any more attention to this movie. --> negative If you change "paying" to "giving" it classes that clause as neutral instead of negative, but doesn't change the result.
deleted 13y ago
[deleted]

ph0rque 13y ago

I tried to fool it with, "My excitement for the movie, as well as the director's IQ, was room temperature... in Celsius." and while the individual words were either positive, neutral, or unknown, the overall sentence was negative. I'm impressed!

6ren 13y ago

"It thinks it's just so smart."

ntoshev 13y ago

I fed it with "I'm surprised how well it can parse the sentiment of sample sentences I threw at it." and it thought that was negative - so I corrected it. The whole level of interaction and transparency with the model is great. "Buy" occurs 12 times. I wonder if stemming could help.

kelvin0 13y ago

The sentence: "It is refreshingly unoriginal and an utter failed masterpiece at best" is parsed as being positive ... I guess the sarcasm detector still needs some work :)

kelvin0 13y ago

Also read as Positive: "It is refreshingly boring and is a monument to the achievement of utter platitudes"

deleted 13y ago

[deleted]

ksrm 13y ago

To really put it through its paces you need to feed it reviews of The Room[1] from imdb: >It is, without question, the worst film ever made. (--) But this comment is in no way meant to be discouraging. (-) Because while The Room is the worst movie ever made it is also the greatest way to spend a blisteringly fast 100 minutes in the dark. (--) Simply put, 'The Room' will change your life. (0) [1] http://www.imdb.com/title/tt0368226/ http://www.imdb.com/title/tt0368226/

FelixP 13y ago

It failed on "Are you sure that's a good idea?"