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的概率为0/20,会导致整个结果是垃圾邮件的概率为0,那么就否定了其他单词出现的权重。 拉普拉斯估计本质上是给频率表中的每个单词的计数加上一个较小的数,这样就保证每一类中每个特征发生的概率非零。通常,拉普拉斯估计中加上的数值为1,这样就保证了每一个特征至少在数据中出现一次。 四、Python 贝叶斯案例 AI检测...
is the most devastating disease of citrus plants, and longer-term control measures via breeding or genetic engineering have been unwieldy because all cultivated citrus species are susceptible to the disease. However, the degree of susceptibility varies among citrus species, which ...
assiduity[ˌæsɪ'djuːɪtɪ] n.[U] 不断关照;殷勤 court[kɔːt] v. to try to please someone because you want them to join you 向…献殷勤 oblige[ə'blaɪdʒ] v. to force someone to do something, or to make i...
According to the writer, why are CVs and application forms so important? A. Interviewing people is an expensive process. B. They indicate whether applicants really want the job. C. They indicate whether applicants are efficient or not. D. Employing the wrong people can be disastrous. ...
In 1191 one of four knights in a legal dispute cannot speak French when appearing at a court where the proceedings were still conducted in that language. By 1200 phrase books teach French as a foreign language are being produced. In the same year the poet Brut's 'The Owl and the ...
某供电局仓库2021年末库存物资金额9600万元，其中：储备物资、闲置物资、项目物资金额分别为8000、600、400万元。经核查：储备物资入库中，连续在库时间超过3个月、6个月、12个月的物资金额有5000万、1000万、700万；闲置物资入库中，连续在库时间超过3个月、6个月、12个月的物资金额分别有200万、200万、10...
C. are essential forms of taming the prey D. have changed the ways of hunting 查看完整题目与答案 某市化妆品生产企业为一般纳税人,主要生产销售化妆品,2014年度有关生产经营情况为: (1)销售自产化妆品给某大型商场,向购买方开具了增值税专用发票,注明销售额3000万元。销售自产化妆品给使用单位和消费者...