Download - Sentiment Analysis
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A presentation by M. Almenea, M. Albidah
![Page 2: Sentiment Analysis](https://reader033.vdocuments.us/reader033/viewer/2022052911/559d3f5e1a28abfb588b45ea/html5/thumbnails/2.jpg)
A presentation by M. Almenea, M. Albidah
![Page 3: Sentiment Analysis](https://reader033.vdocuments.us/reader033/viewer/2022052911/559d3f5e1a28abfb588b45ea/html5/thumbnails/3.jpg)
A presentation by M. Almenea, M. Albidah
What’s the problem?
![Page 4: Sentiment Analysis](https://reader033.vdocuments.us/reader033/viewer/2022052911/559d3f5e1a28abfb588b45ea/html5/thumbnails/4.jpg)
A presentation by M. Almenea, M. Albidah
What’s the problem?
Why sentiment analysis?
![Page 5: Sentiment Analysis](https://reader033.vdocuments.us/reader033/viewer/2022052911/559d3f5e1a28abfb588b45ea/html5/thumbnails/5.jpg)
A presentation by M. Almenea, M. Albidah
What’s the problem?
Why sentiment analysis?
Roadmap
![Page 6: Sentiment Analysis](https://reader033.vdocuments.us/reader033/viewer/2022052911/559d3f5e1a28abfb588b45ea/html5/thumbnails/6.jpg)
A presentation by M. Almenea, M. Albidah
What’s the problem?
Why sentiment analysis?
Roadmap
Challenges
![Page 7: Sentiment Analysis](https://reader033.vdocuments.us/reader033/viewer/2022052911/559d3f5e1a28abfb588b45ea/html5/thumbnails/7.jpg)
A presentation by M. Almenea, M. Albidah
![Page 8: Sentiment Analysis](https://reader033.vdocuments.us/reader033/viewer/2022052911/559d3f5e1a28abfb588b45ea/html5/thumbnails/8.jpg)
A presentation by M. Almenea, M. Albidah
We need to use NLP to study emotions, opinions that are
expressed in text.
![Page 9: Sentiment Analysis](https://reader033.vdocuments.us/reader033/viewer/2022052911/559d3f5e1a28abfb588b45ea/html5/thumbnails/9.jpg)
A presentation by M. Almenea, M. Albidah
We need to use NLP to study emotions, opinions that are
expressed in text.
I have fallen in love with Python.
Example:
This camera takes great photo, I really like it.
![Page 10: Sentiment Analysis](https://reader033.vdocuments.us/reader033/viewer/2022052911/559d3f5e1a28abfb588b45ea/html5/thumbnails/10.jpg)
A presentation by M. Almenea, M. Albidah
![Page 11: Sentiment Analysis](https://reader033.vdocuments.us/reader033/viewer/2022052911/559d3f5e1a28abfb588b45ea/html5/thumbnails/11.jpg)
A presentation by M. Almenea, M. Albidah
Companies can use SA tojudge on customer opinions.
As a consequence, No surveys.
![Page 12: Sentiment Analysis](https://reader033.vdocuments.us/reader033/viewer/2022052911/559d3f5e1a28abfb588b45ea/html5/thumbnails/12.jpg)
A presentation by M. Almenea, M. Albidah
Companies can use SA tojudge on customer opinions.
As a consequence, No surveys.
Opinion retrieval: search foropinions.
![Page 13: Sentiment Analysis](https://reader033.vdocuments.us/reader033/viewer/2022052911/559d3f5e1a28abfb588b45ea/html5/thumbnails/13.jpg)
A presentation by M. Almenea, M. Albidah
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System Design:1- Get training data {x1,x2,…xm}.2- String to vector.3- Stemming and stopWords removal.4- Attribute selection.5. Run the system.
A presentation by M. Almenea, M. Albidah
![Page 15: Sentiment Analysis](https://reader033.vdocuments.us/reader033/viewer/2022052911/559d3f5e1a28abfb588b45ea/html5/thumbnails/15.jpg)
System Design:1- Get training data {x1,x2,…xm}.2- String to vector.3- Stemming and stopWords removal.4- Attribute selection.5. Run the system.
A presentation by M. Almenea, M. Albidah
![Page 16: Sentiment Analysis](https://reader033.vdocuments.us/reader033/viewer/2022052911/559d3f5e1a28abfb588b45ea/html5/thumbnails/16.jpg)
A presentation by M. Almenea, M. Albidah
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[1] Example from Prof. Ronen Feldman
Example[1]:- honda accord and toyota camry are nice sedans.- honda accord and toyota camry are nice sedans, but hardly the best car on the road.
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A presentation by M. Almenea, M. Albidah
1- Named Entity Recognition.2- Poor spelling, poor punctuation, poor grammar.3- Language complexity.4- For ArabicNLP: Arabizi is another problem.5- Emotional Symbols - :D ;) etc.. .
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A presentation by M. Almenea, M. Albidah
http://nlp.stanford.edu:8080/sentiment/rntnDemo.htmlhttp://www.csc.ncsu.edu/faculty/healey/tweet_viz/tweet_app/
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A presentation by M. Almenea, M. Albidah
![Page 21: Sentiment Analysis](https://reader033.vdocuments.us/reader033/viewer/2022052911/559d3f5e1a28abfb588b45ea/html5/thumbnails/21.jpg)
A presentation by M. Almenea, M. Albidah
• https://stackoverflow.com/questions/4806176/what-are-the-most-challenging-issues-in-sentiment-analysisopinion-mining
• http://www.lct-master.org/files/MullenSentimentCourseSlides.pdf• http://ijcai13.org/files/tutorial_slides/tf4.pdf