百度被人工智能大賽撤消參賽資歷
Baidu's victory has been struck out and it is now banned from similar competitions for a year。
Chinese search giant Baidu has been disqualified from an artificial intelligence test in which it appeared to beat Google and Microsoft.
The test, in May, looked at how well computers recognise images.
But it has now emerged that Baidu submitted far more tests than the rules allowed, meaning its results were not comparable with others in the competition.
The firm has apologised for "this mistake".
Its win has now been cancelled and it has been banned from similar challenges for a year.
Rule-breaking
Baidu claimed to have scored an impressive 4.58% error rate on a test which asked contestants to accurately recognise a series of images from a large picture database.
Although Google and Microsoft were not far behind - with 4.94% and 4.8% error rates respectively - it was still regarded as a significant victory especially as Baidu is a relative newcomer to AI.
But its victory turned out to be short-lived when, earlier this week, organisers of the ImageNet Large Scale Visual Recognition Challenge (ILSVRC) - run at Stanford University's vision lab - revealed that Baidu had broken its rules.
"During the period of 28 November 2014 to 13 May 2015, there were at least 30 accounts used by a team from Baidu to the test server at least 200 times, far exceeding the specified limit of two submissions per week," it wrote.
It included some periods of very high usage - 40 submissions in five days during March.
In a statement Baidu said that it had been informed that "we exceeded the allowable number of weekly submissions to the ImageNet servers".
"We apologise for this mistake and are continuing to review the results," it added.
Dog breeds
ImageNet was set up as a resource for AI researchers and contains millions of pictures.
Getting computers to accurately recognise the content and context of pictures is one of the key goals in the field of artificial intelligence and has obvious benefits for the search industry.
The competition required competitors to arrange pictures into predefined categories and recognise small differences in images, such as different breeds of dog.
For the test, Baidu used its deep learning supercomputer dubbed Minwa. In January, it said its computer vision system - Deep Image - was the world's "most accurate".
At the time of the competition victory, Baidu scientist Ren Wu claimed the firm was now "leading the race in computer intelligence".
Since the issue emerged, the AI world has been buzzing, with many leading experts asking for details about what happened. Baidu has offered no explanation beyond calling the incident a "mistake".
百度的成功被宣告無效並被制止加入相似競賽一年。
中國搜刮引擎巨子百度在一次人工智能大賽中看上去贏了google和微軟——但是終極被撤消資歷。
這場在5月份舉行的競賽，比的是盤算機辨認圖象的才能。
然則如今漸漸披暴露來，百度舉行了比規矩劃定所許可的次數多很多的測試，這象征著百度的成果沒法與其他參賽者公正競爭。
該公司已為其"失誤"而報歉。
百度如今被撤消成就，並被制止加入相似比賽一年。
違背規矩
百度曾傳播鼓吹，在這場請求參賽者在一個大的圖片數據庫裏準確辨認一系列圖象的競賽中，其毛病率只有使人受驚的4.58%。
固然google和微軟並無落伍許多——這兩家各自毛病率分離為4.94%和4.8%——但百度的勝出仍舊被以為是一個偉大的成功，特別是斟酌到百度在人工智能方面是厥後者。
但這個成功很夭折，本周早些時刻，ImageNet Large Scale Visual Recognition Challenge (ILSVRC)競賽的構造者——由斯坦福大學視覺試驗室擔負——發明百度違反了其規矩。
"在2014年11月到2015年5月13白天，百度團隊用了最少30個賬號在辦事器上測試了最少200次，遠遠超越所請求的每周2次"，賽會構造者說。
這包含在一些時代內的高頻率應用——3月份，百度在5天內就舉行了40次測試。
在一份聲明中，百度說已獲知"咱們跨越了所許可的每周銜接ImageNet辦事器測試的次數"。
"咱們為所犯的毛病報歉，並將持續檢討成果"。
狗的品種
ImageNet為人工智能研討者創立了一個包括數百萬幅圖片的源。
讓盤算機準確辨認圖片的內容和配景，是人工智能範疇的一個癥結目的，而且對付搜刮業來講也有不言而喻的利益。
此次競賽請求參賽者把圖片歸類到預先界說的目次內裏去，而且辨認圖片內容的渺小差異，好比狗的品種。
此次競賽中，百度啟用了外號為"Minwa"的深度進修超等盤算機。一月份，百度說其盤算機視覺體系——"Deep Image"——是天下上最精確的。
在競賽得勝時，百度首席科學家吳恩達宣稱該公司如今已"在盤算機靈能中領跑"。
但是(違規)新聞傳出後，人工智能天下群情紛紜，許多行業尖真個專家訊問事宜的細節。百度除把此事成為"失誤"外沒有給出其他說明。
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