ARTS打卡 - 20191125~20191208
这个系列是
ARTS打卡计划， 什么是ARTS， 参看这里https://time.geekbang.org/column/article/85839
Algorithm
Review
While generally being more accurate than content based techniques, CF suffers from the cold start problem, due to its inability to address products new to the system, for which content based approaches would be adequate.
协同过滤一般会比基于内容的技术更加准备，与此同时协同过滤有冷启动问题，因为它无法表征系统中新的物品，而基于内容的手段能胜任。
It is well accepted [10] that a good recommendation should be accompanied with an explanation, which is a short description to why a specific product was recom- mended to the user. This helps in improving the users’ trust in the system and their ability to put recommenda- tions in the right perspective.
通常认为一个好的推荐应该具备一个解释，它简单描述了为什么把特定物品推荐给特定用户。这样可以提升用户对系统的信任，以及他们从正确角度提出建议的能力。
Tip
Golang中有时需要阻塞程序，比如NSQ消费队列脚本可以用select {}来实现，这样看起来更tricky。
Share
本周写了对公司全员分享的ppt，主题是"一个推荐系统的实现"。 下载链接