感情分
テキストの感情を分析します。ポジティブ、ネガティブ、またはニュートラかを判断します。
Features
Use Cases
感情分
What is Sentiment Analysis?
Definition
Sentiment analysis is an AI-powered technique that automatically determines the emotional tone and attitude expressed in text. It identifies whether the sentiment is positive, negative, neutral, or mixed by analyzing word choice, context, and linguistic patterns.
Applications
This technology is widely used in business intelligence, social media monitoring, customer service, and market research to understand public opinion and emotional responses.
Who Should Use This
Perfect for businesses, marketers, researchers, content creators, and anyone who needs to quickly understand the emotional context of written communication.
How to Use This Tool
1. Paste or type your text into the input field above
2. Click the 'Analyze Sentiment' button to process your text
3. Review the results showing sentiment classification and confidence scores
Example Input:
“The hotel was beautiful but the staff was rude.”Expected Output: Mixed sentiment detected - positive elements (beautiful hotel) and negative elements (rude staff) identified with confidence scores.
Use Cases & Applications
Customer Feedback Analysis
Quickly identify satisfaction levels and pain points in customer reviews, support tickets, and feedback forms. Automatically categorize complaints and compliments to prioritize responses and improve service quality.
Social Media Monitoring
Monitor brand reputation across social platforms by analyzing mentions, comments, and posts. Track sentiment trends over time to measure campaign effectiveness and identify potential PR issues before they escalate.
E-commerce Review Analysis
Analyze thousands of product reviews instantly to understand customer satisfaction patterns. Identify common complaints and praise points to inform product improvements and marketing strategies.
Content & Communication
Evaluate the emotional tone of marketing content, emails, and communications before publishing. Ensure your message resonates with the intended audience and maintains appropriate sentiment.
Example Analysis Results
See how our tool analyzes different types of text:
“I absolutely love this product! It's amazing and works perfectly.”
“The service was terrible and I'm very disappointed.”
“The food was good but the service was slow.”
Frequently Asked Questions
How accurate is this sentiment analysis tool?
How accurate is this sentiment analysis tool?
Our AI-powered tool achieves approximately 85-90% accuracy on standard text. Accuracy may vary with sarcasm, complex emotions, or domain-specific language. For critical business decisions, we recommend human review.
What languages does the tool support?
What languages does the tool support?
The tool primarily supports English text with high accuracy. It can process other major languages like Spanish, French, German, and Italian, but with potentially reduced accuracy.
Can it detect sarcasm or irony?
Can it detect sarcasm or irony?
Detecting sarcasm is challenging for AI systems. While our tool can identify some obvious cases, subtle sarcasm or irony may not be accurately detected. Context and human judgment remain important for nuanced text.
Is this tool completely free to use?
Is this tool completely free to use?
Yes, our sentiment analyzer is completely free with no usage limits. No registration or payment is required. All processing happens securely in your browser.
How does it handle mixed emotions?
How does it handle mixed emotions?
The tool can identify mixed sentiments where both positive and negative emotions are present. It provides separate confidence scores for each sentiment type and highlights the dominant emotion.
Pro Tips
Note: Sentiment analysis results are AI-generated and may not always be perfectly accurate. For critical decisions, please verify with human review.