谷歌對搜索算法進行重大修改 新穎度算法上臺
Google local time in the United States on Thursday announced that its search engine algorithms to make major changes. The new algorithm will increase the time factor. This change will make 35% search results change.
Google made this change is because nowadays people hoped that from the Twitter or other website to search for real time news， but Google‘s search algorithms are unable to do this. The results show there is a little outdated， such as when the search for“ Oscar Award” to find out the year awards when specific time， the search result is a past awards content etc.
Google will a new algorithm called“ freshness algorithm” ( new algorithm )， using Google ’s“ caffeine” webpage index system faster capture network information， and provide real-time search results.
Google annually on its search algorithm to make more than 500 revisions， but most modify only affects a very small part of the search results. On a larger scale modifications occurred in February of this year， when Google removed some low quality web sites， such as information farm site， affected search results reached 12%.
The new algorithm is implemented， for recent events， such as the Oscar prize or the presidential election， the new updated information will be ranked in the forefront of the search results， as is the use of Google news search tools that use time. In addition， more frequent updating topic， such as the new iPhone ‘s comment， will also appear on comments.
For those not time sensitive content search results， such as“ how to change a tire” or“ banana bread ”， Google said their algorithm can know what is most consistent with the result of time， time will not be affected.谷歌在美國當地時間星期四宣佈對其搜索引擎的算法作出重大修改。新算法將加重時間因素的影響。這一改動會使35%的搜索結果產生變化。
谷歌作出這一改變是因爲現今的人們更希望從Twitter或者其它網站搜索到實時的消息，但谷歌目前的搜索算法則無法做到這一點。顯示的結果總會顯得有點過時，譬如當搜索“奧斯卡獎”以找出今年頒獎晚會的具體時間時，得到的搜索結果卻是一項過去頒獎晚會的內容等等。
谷歌將新算法稱爲“freshness algorithm”(新穎度算法)，利用谷歌的“咖啡因”網頁索引系統更快的捕捉網絡信息，並給出相關的實時搜索結果。
谷歌每年都會對其搜索算法作出超過500次的修改，但大多數修改僅僅會影響極少部分的搜索結果。上一次較大規模的修改發生在今年2月份，當時谷歌清除了一些低質量的網站，比如信息農場網站等，受影響的搜索結果達到了12%左右。
新算法實施後，對於近期發生的事件，如奧斯卡獎或者總統大選等，最新更新的信息會排在搜索結果的前列，就像是使用谷歌搜索新聞時使用時間工具那樣。此外，較頻繁更新的話題，如對新iPhone的評論等，也會顯示靠前的評論。
對於那些對時間不敏感的內容搜索結果，如“如何更換汽車輪胎”或者“香蕉麪包的做法”之類的，谷歌表示他們的算法能知道什麼是最符合答案的結果，時間此時將不受影響。
