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Numeric value of sentimental analysis

dilmi Jun 13, 2015 05:08AM EDT

Hi

I want to know how you provide numeric value to positive,negative,neutral statements?Can you tell be what is the basic of that range? Tell me more about provement or how do you research about the value?

ex- positive - 1.0 how do you prove ,base on any theory??

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Ethan Jun 15, 2015 12:10PM EDT Semantria Agent

Hi Dilmi,

I think it will be easier to answer your questions with a phone call. Is there a good time and contact number that we can reach you? Thank you.

Regards,

Ethan Thong
Support Engineer

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Ethan Jun 16, 2015 03:35PM EDT Semantria Agent

Hi Dilmi,

We want to connect with you via a phone call to help answer your questions. Can you let us know what time is best for you?
To start answering your questions in the meantime, there are a few methods to go about scoring statements. Before you do, it’s good to understand sentiment scoring first.

When most people think of sentiment, they think of a number scale centered at zero, where anything greater than zero is good (positive sentiment), anything to the left of zero is bad (negative sentiment) and right in the middle at zero means neutral.

In reality, we recommend that customers consider a neutral range. Some zone within which there is measured sentiment, but not enough to give a clear positive or negative sentiment measurement. The FAQ on our developer wiki here, http://dev.lexalytics.com/wiki-se4/pmwiki.php?n=SE4.FAQ provides some recommendations for the width of this zone. This may also vary between different use cases, where one customer may find that their content is generally positive toned. In this case, anything that even hints of negative sentiment should be considered negative, and content would need higher values of positive sentiment to truly distinguish it as conveying a distinct positive message.

Now that you’ve chosen the neutral range, you can begin scoring your statements/phrases. One method would be going through your list of statements/phrases and choose if it’s very negative, negative, slightly negative, slightly positive, positive, or very positive. Then choose ranges corresponding to these degrees, e.g.
very negative = -0.7 to -0.8
negative = -0.4 to -0.5
slightly negative = -0.1 to -0.2
slightly positive = 0.1 to 0.2
positive = 0.4 to 0.5
very positive = 0.7 to 0.8

Regards,

Ethan Thong
Support Engineer

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dilmi Jun 16, 2015 11:41PM EDT
HI Ethan,

THANKS for reply Ethan.I got a mistake and rated yu as -3.So sorry for that .I want to give good rate.accidently happend this.Is any way to change that?

I want to know how yu define range by seeing any plot ,or formula?and what about ignore ranges when degrees marking.ex(0.2-0.4)

Thanks
Up 1 rated Down
Ethan Jun 17, 2015 10:32AM EDT Semantria Agent

Hi Dilmi,

For choosing range, there isn’t a formula to it since it’s based on native speaker intuition. Language is systematic and scientific, but for sentiment, the golden standard is whatever native speakers say it is. The scores don’t have any real ranges; they’re just assigned as a baseline to capture the human judgement. There is no categorical difference between a 0.3 and a 0.4, or technically even between a 0.1 and a 1.

Consider it as how you would rate pain on a pain scale. I mean, it’s like choosing a number between 1 and 10, based on degree. The major things to keep in mind is relative sentiment. “ugly floral arrangement” is negative, since floral arrangements are supposed to be pretty, but it’s not so bad as “violent death,” which is obviously much worse a thing. So when we score things, we take this relative degree of sentiment into account, and score accordingly.

I hope that clarifies things. Please let us know if you have further questions. Thank you.

Regards,

Ethan Thong
Support Engineer

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Dilmi Jun 17, 2015 11:24PM EDT
HI Ethan,

Thank you kindly response.i learnt lot of thing from there,I will use and see.Thanks

Dilmi
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Ethan Jun 19, 2015 11:40AM EDT Semantria Agent

Hi Dilmi,

I want to check if you have further questions. If not can we consider the ticket resolved for now? If you should have more questions in the future you can open another ticket. Please let me know. Thanks!

Regards,

Ethan Thong
Support Engineer

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Ethan Jun 24, 2015 04:04PM EDT Semantria Agent

Hi Dilmi,

I want to check if you have further questions or if all of your immediate issues have been addressed, can you confirm ticket closure? Thank you.

Regards,

Ethan Thong
Support Engineer

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Ethan Jun 29, 2015 12:15PM EDT Semantria Agent

Hi Dilmi,

Since we haven’t heard back from you we will assume that all of your current issues have been address and will proceed to closing this ticket. If you should have further issues down the line, please contact us at support@semantria.com. Thank you.

Regards,

Ethan Thong
Support Engineer

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