Sentiment and Subject / Topic Analysis

🧠 Sentiment and Subject / Topic Analysis

Artificial Intelligence divides your text into sentences and analyzes sentiment, topic, and subtopic for each sentence. Just enter the texts you want to analyze and let the AI handle the rest.

---

📘 How It Works

This actor uses an advanced AI API to perform sentence-level analysis. For each provided text, it detects the overall sentiment, breaks the text into individual sentences, and extracts main topics and subjects with their corresponding sentiments.

Example:

“I love the design, but the battery dies too fast.”

Will be divided and analyzed as:

• Sentence 1: “I love the design.” → Positive, Subjects: ["Product", "Design"]
• Sentence 2: “but the battery dies too fast.” → Negative, Subjects: ["Product", "Battery"]

---

⚙️ Input Schema

Field	Type	Description	Default	Required
texts	array	One or more texts to analyze.	–	✅
responseLanguage	string	Changes the language of response subjects. Supports 100+ languages.	en	❌

Example input:

{
  "texts": [
    "My phone stopped charging.",
    "I tried to return it but they said it was user error."
  ],
  "responseLanguage": "en"
}

---

🧾 Output Example

Each record in the dataset represents one analyzed text with detailed sentence breakdowns.

{
  "text": "My phone stopped charging.",
  "sentiment": "Negative",
  "subjects": ["phone", "charging"],
  "sentences": [
    {
      "text": "My phone stopped charging.",
      "sentiment": "Negative",
      "subjects": ["phone", "charging"]
    }
  ]
}

---

🪄 Output Fields

Field	Type	Description
text	string	Original analyzed text
sentiment	string	Overall emotion (Positive, Negative, Neutral)
subjects	array[string]	List of detected topics/subjects
sentences	array[object]	Sentence-level analysis containing text, sentiment, and subjects

---

🌍 Supported Languages

Supports over 100 languages, including English, Spanish, Turkish, French, Arabic, Chinese, Japanese, German, Russian, and many more. You can control the response subject language via the responseLanguage field.

---

🚀 Usage

1. Add the actor to your Apify account.
2. Provide the texts you want to analyze in the input.
3. Run the actor.
4. View detailed AI-based sentiment and topic analysis in the Dataset tab.

---

💡 Notes

• Each text is processed independently.
• The actor automatically handles sentence splitting.
• If an invalid language code is provided, English will be used by default.

---

🧩 Example Result Table (Apify View)

Text	Sentiment	Subjects	Sentences
My phone stopped charging.	Negative	["phone", "charging"]	[{"text":"My phone stopped charging.","sentiment":"Negative","subjects":["phone","charging"]}]

---

✨ Ideal For

• Social media feedback analysis
• Product review monitoring
• Customer sentiment tracking
• Automated topic detection
• Market and trend analysis

---

Would you like me to make a shorter version (under 300 words) for Apify Store “Description” field as well? It’s different from README — it’s what users see first in the Apify UI.