منابع مشابه
Feature Extraction and Efficiency Comparison Using Dimension Reduction Methods in Sentiment Analysis Context
Nowadays, users can share their ideas and opinions with widespread access to the Internet and especially social networks. On the other hand, the analysis of people's feelings and ideas can play a significant role in the decision making of organizations and producers. Hence, sentiment analysis or opinion mining is an important field in natural language processing. One of the most common ways to ...
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Automatic processes on seismic data using pattern recognition is one of the interesting fields in geophysical data interpretation. One part is the seismic object detection using different supervised classification methods that finally has an output as a probability cube. Object detection process starts with generating a pickset of two classes labeled as object and non-object and then selecting ...
متن کاملFeature Reduction Using Ensemble Approach
The performance of many content analysis methods heavily dependent on the features they are applied. A fundamental problem that makes the content analysis difficult is the curse of dimensionality. In this study, we propose a novel feature reduction method which adopts ensemble approach to measure the divergence between the training set and test set and use the divergence to supervise the featur...
متن کاملTwitterHawk: A Feature Bucket Based Approach to Sentiment Analysis
This paper describes TwitterHawk, a system for sentiment analysis of tweets which participated in the SemEval-2015 Task 10, Subtasks A through D. The system performed competitively, most notably placing 1 in topicbased sentiment classification (Subtask C) and ranking 4 out of 40 in identifying the sentiment of sarcastic tweets. Our submissions in all four subtasks used a supervised learning app...
متن کاملEffect of Feature Reduction in Sentiment analysis of online reviews
Sentiment analysis is the task of identifying whether the opinion expressed in a document is positive or negative about a given topic. In sentiment analysis, feature reduction is a strategy that aims at making classifiers more efficient and accurate. Unfortunately, the huge number of features found in online reviews makes many of the potential applications of sentiment analysis infeasible. In t...
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ژورنال
عنوان ژورنال: International Journal of Computer Applications
سال: 2017
ISSN: 0975-8887
DOI: 10.5120/ijca2017914815