Burstiness
A metric that measures the degree of variation in sentence complexity within a text. Human writing typically exhibits pronounced burstiness, alternating between complex and simple sentences, while AI-generated text tends to be relatively uniform. It is often used in combination with perplexity for AI content detection.
Core Facts
Mainstream AI detection tools primarily rely on two statistical metrics—Perplexity and Burstiness—to distinguish human writing from AI-generated text.
Because AI-generated text always selects high-probability words, its perplexity is generally low and the writing is excessively smooth and uniform.
AI detection tools such as Weipu, Gezida, GPTZero, and Turnitin AI Detection primarily detect content based on two metrics: text Perplexity and Burstiness.
Timeline (last 90 days)
Burstiness describes the variance in sentence length and structure within a text: human writing alternates long and short sentences, giving high variance; AI output has similar sentence lengths and structures, giving low variance.
Burstiness describes the degree of fluctuation in sentence length and complexity; AI output tends to maintain uniform sentence lengths, resulting in low burstiness.
Burstiness refers to the degree of fluctuation caused by alternating complex and simple sentences in text; human writing typically exhibits more pronounced burstiness, while AI-generated text is relatively smooth and uniform.
All Facts (7)
Mainstream AI detection tools primarily rely on two statistical metrics—Perplexity and Burstiness—to distinguish human writing from AI-generated text.
80%VerifiedBecause AI-generated text always selects high-probability words, its perplexity is generally low and the writing is excessively smooth and uniform.
80%VerifiedAI detection tools such as Weipu, Gezida, GPTZero, and Turnitin AI Detection primarily detect content based on two metrics: text Perplexity and Burstiness.
70%VerifiedBurstiness refers to the degree of fluctuation caused by alternating complex and simple sentences in text; human writing typically exhibits more pronounced burstiness, while AI-generated text is relatively smooth and uniform.
65%UnverifiedAIGC检测通过分析文本的统计特征（如词汇多样性、句式结构、困惑度等指标）来判断内容是否由AI生成
85%UnverifiedBurstiness describes the variance in sentence length and structure within a text: human writing alternates long and short sentences, giving high variance; AI output has similar sentence lengths and structures, giving low variance.
50%UnverifiedBurstiness describes the degree of fluctuation in sentence length and complexity; AI output tends to maintain uniform sentence lengths, resulting in low burstiness.
50%