WOLFRAM

Wolfram 语言与系统参考资料中心

"Spam（内置分类器）" (内置分类器)

根据内容检测是否是垃圾邮件：

类别

更多信息

  • 当前版本只适用于英文.

范例

打开所有单元 关闭所有单元

基本范例  (2)

使用 "Spam" 内置分类器根据内容检测是否是垃圾邮件：

Wolfram Language code: Classify["Spam", "Dear recipient,*** Technologies announces the beginning of a new unprecendented global employment campaign.reviser yeller winers butchery twenties Due to company's exploding growth *** is expanding business to the European region.During last employment campaign over 1500 people worldwide took part in ***'s business and more than half of them are currently employed by the company.And now we are offering you one more opportunity to earn extra money working with *** Technologies.druggists blame classy gentry Aladdin We are looking for honest,responsible,hard-working people that can dedicate 2-4 hours of their time per day and earn extra Â$300-500 weekly.All offered positions are currently part-time and give you a chance to work mainly from home.lovelies hockey Malton meager reordered Please visit ***'s corporate web site (http://www.***.com/sta/home/0077.htm) for more details regarding these vacancies."]

获取可能类的概率：

Wolfram Language code: Classify["Spam", "Dear recipient,*** Technologies announces the beginning of a new unprecendented global employment campaign.reviser yeller winers butchery twenties Due to company's exploding growth *** is expanding business to the European region.During last employment campaign over 1500 people worldwide took part in ***'s business and more than half of them are currently employed by the company.And now we are offering you one more opportunity to earn extra money working with *** Technologies.druggists blame classy gentry AladdinPlease visit ***'s corporate web site (http://www.***.com/sta/home/0077.htm) for more details regarding these vacancies.", "Probabilities"]

获取分类器的 ClassifierFunction：

Wolfram Language code: c = Classify["Spam"]

把分类器应用于电子邮件：

Wolfram Language code: c["Dear recipient, *** Technologies announces the beginning of a new unprecendented global employment campaign.reviser yeller winers butchery twenties Due to company's exploding growth *** is expanding business to the European region.During last employment campaign over 1500 people worldwide took part in ***'s business and more than half of them are currently employed by the company.And now we are offering you one more opportunity to earn extra money working with *** Technologies.druggists blame classy gentry AladdinPlease visit ***'s corporate web site (http://www.***.com/sta/home/0077.htm) for more details regarding these vacancies."]

范围  (1)

加载对应的内置分类器的 ClassifierFunction：

Wolfram Language code: c = Classify["Spam"]

使用 Information 获取可能的类：

Wolfram Language code: Information[c, "Classes"]

选项  (2)

ClassPriors  (1)

使用自定义的 ClassPriors 限制可能的输出：

Wolfram Language code: Classify["Spam", "Dear recipient, *** Technologies announces the beginning of a new unprecendented global employment campaign.reviser yeller winers butchery twenties Due to company's exploding growth *** is expanding business to the European region.During last employment campaign over 1500 people worldwide took part in ***'s business and more than half of them are currently employed by the company.And now we are offering you one more opportunity to earn extra money working with *** Technologies.druggists blame classy gentry AladdinPlease visit ***'s corporate web site (http://www.***.com/sta/home/0077.htm) for more details regarding these vacancies.", ClassPriors -> <|False -> 0.4, True -> 0.6|>]

IndeterminateThreshold  (1)

使用自定义的 IndeterminateThreshold：

Wolfram Language code: Classify["Spam", "Dear recipient, *** Technologies announces the beginning of a new unprecendented global employment campaign.reviser yeller winers butchery twenties Due to company's exploding growth *** is expanding business to the European region.During last employment campaign over 1500 people worldwide took part in ***'s business and more than half of them are currently employed by the company", IndeterminateThreshold -> 0.7]