ES，TF/IDF排序算法

1 min read
script score中除了doc/_score还可以通过_index获取一些查询中的参数，其中词频、文档数什么的就是通过_index.xxx获取 def termInfo = _index['name'].get('北京', _POSITIONS| _OFFSETS |_PAYLOADS|_CACHE ); def score = 0; def tf = 0; for (pos in termInfo) { //词频，

mac gem安装失败

$ sudo gem install compass ERROR: While executing gem ... (Errno::EPERM) Operation not permitted - /usr/bin/compass 改为`sudo gem install -n /usr/local/bin compass` $ sudo gem install -n /usr/local/bin

Javascript导出Excel

1 min read
1. 引用ExcelBuilder 2. 创建workbook var workbook = ExcelBuilder.createWorkbook(); 3. 创建worksheet var worksheet = workbook.createWorksheet({name: 'Sheet 1'}); workbook.addWorksheet(worksheet); 4. 加载数据 var data = [['Name','Gender','