- 类别:
字符串和二进制函数 (AI Functions)
SENTIMENT (SNOWFLAKE.CORTEX)¶
返回给定英文输入文本的总体情绪分数。
语法¶
SNOWFLAKE.CORTEX.SENTIMENT(<text>)
实参¶
text一个字符串,包含应计算情绪分数的文本。
返回¶
A floating-point number from -1 to 1 (inclusive) indicating the model's level of certainty of any detected sentiment. A score close to 0 indicates that the function could not determine a clear sentiment in the text; this result can be considered neutral. A score close to 1 indicates positive sentiment, while a score close to -1 indicates negative sentiment. The chart below provides guidance on how to interpret the sentiment scores:
情绪 |
情绪分数 |
|---|---|
正面 |
0.5 至 1 |
中性 |
-0.5 至 0.5 |
负面 |
-0.5 至 -1 |
结果 并不 表示情绪的强度,而是极性(正面、中立或负面)和确定性。
访问控制要求¶
Users must use a role that has been granted the SNOWFLAKE.CORTEX_USER database role. See Cortex LLM privileges for more information on this privilege.
示例¶
以下示例使用 SENTIMENT 获取餐饮服务评价的情绪分类,鉴于分数为 0.54,可以推断该分类为轻度正面。
SELECT SNOWFLAKE.CORTEX.SENTIMENT('A tourist\'s delight, in low urban light,
Recommended gem, a pizza night sight. Swift arrival, a pleasure so right,
Yet, pockets felt lighter, a slight pricey bite. 💰🍕🚀');
响应:
0.5424458
在以下示例中,一个名为 reviews 的表包含一个名为 review_content 的列,该列包含用户提交的评论文本。该查询返回每条评论的情绪分数。
SELECT SNOWFLAKE.CORTEX.SENTIMENT(review_content), review_content FROM reviews LIMIT 10;
法律声明¶
请参阅 Snowflake AI 和 ML。
限制¶
Snowflake Cortex 函数不支持动态表。