Procurement information by category and geographical co-location, achieve accurate vertical query.
信息采购按分类和地域共同定位，实现精准的垂直查询。
2
The basic hypothesis made in this paper is that when a semantic category occurs in a text, the content words co occurring in it are similar in terms of statistics.
本文的基本假设是：当这些词在文本中出现时，与它们前后同现的那些实词在统计意义上是相似的。
3
On the same day, a supplementary memorandum of co-operation was signed by Governor Zhou and Mr Yam, expanding the relevant co-operative arrangements to cover the new category of renminbi business.