There are too many fake goods on the Internet. If you can't grasp them, let AI do it
try my best, 2021-06-09 03:15:47

Xiao Xiao From the Aofei temple
qubits reports | official account QbitAI

Still worried about online shopping may be fake ?


 There are too many fakes on the Internet , You can't hold it , Give Way AI Come on

Now? , Ali made his own AI Anti counterfeiter , Let algorithms help crack down on counterfeiting !

Just show it a picture of the product you want to identify , It can be in Tens of milliseconds In the time of , Judge the authenticity of the goods .

It's like a blink of an eye ( about 0.5 second ), It's already recognized 10 individual Counterfeit goods .

More Than This , Ali's security team has also disclosed a project containing 100 Data set of ten thousand genuine trademark photos Open Brand, Let more people participate in “AI Counterfeiting ” In action .

that ,AI How to fight against counterfeiting ?

Attack Gao Fang and Shanzhai at the same time

First , We need to know the selling routine of fake goods .

Because there is no qualification to sell authentic products , Fake shops need to use all kinds of means , Escaped the trail :

firstly ,“ High imitation ” Commodity . This fake will do harm to logo Fuzzy processing 、 Partial occlusion , Even against sample attacks ( you 're right , That's the high technology ).

Online shopping platform , The fake pictures we see are often like this :


 There are too many fakes on the Internet , You can't hold it , Give Way AI Come on

The appearance of these goods , Often very close to brand goods , However, there is no product guarantee .

second ,“ shanzhai ” Commodity . This fake will do harm to logo Conduct PS、 And use the fake name when registering , To avoid the recognition of the algorithm .

Don't say that , These fake goods , Play “ Fake makeup ” Come on, there's a way :


 There are too many fakes on the Internet , You can't hold it , Give Way AI Come on

Users don't pay attention , It's easy to fall into a trap , However, the speed of platform manual review , And it's really limited .

So , Ali's security team decided , Create a AI“ Anti counterfeiter ”, Fight against counterfeiting faster .

AI Cracking down on fake models , What needs to be solved most , This is it. 3 A question :

  • How to solve the problem of small target recognition ?( The logo in the picture logo Often very small )
  • How to solve logo Fuzzy deformation coding 、 Even introduce the problem of attack samples ?
  • How to accurately identify “ shanzhai ” edition logo?

To solve these problems , Ali's security team designed a project called Brand Net Model of .

According to senior algorithm expert of Ali security Turing Laboratory Chinese flowering crabapple Introduce , The model is divided into three parts :


 There are too many fakes on the Internet , You can't hold it , Give Way AI Come on

Cascade-RPN, This part focuses on solving the problem of detection in commodity pictures logo“ Sometimes big, sometimes small ” The problem of , The accuracy of target detection is improved 、 Small target recall rate .

Soft Mask Attention, This part uses transfer learning , Construct a detection frame (bounding box) Feature to segmentation (segmentation) The mapping space of features , Effectively improve logo smaller 、 Or the detection accuracy in case of deformation .

Feature Representation and Instance Retrieval, This part enables the model to be used in the new logo Elastic expansion when adding , There's no need to retrain the model .

Of course ,Brand Net As AI“ Anti counterfeiter ” One of my tricks , Mainly used for more famous ( There are so many pictures of products ) The brand of , Because they have more pictures of their products , The trained model will work better .


 There are too many fakes on the Internet , You can't hold it , Give Way AI Come on

△ The long tail problem of data imbalance

For some products with few photos New brand ,AI“ Anti counterfeiter ” In another way , To improve your identification ability :

In a semi supervised way , Include 3D Data to enhance , Domain migration (HDA), Self distillation, etc , To train .

Tests show that , This AI“ Anti counterfeiter ”, stay NVIDIA A variety of graphics cards (T4、P100、V100) It has achieved a very fast detection effect , On average 30~50ms You can identify a fake in a few minutes .


 There are too many fakes on the Internet , You can't hold it , Give Way AI Come on

and , The effect of recognition is very good , Recognition accuracy of online pictures , Reached 95%.

Of course , Online shopping platform will not be completely based on AI“ Anti counterfeiter ” The result of our judgment , Punish businesses directly .

stay AI“ Anti counterfeiter ” After finding out the suspected sellers of fake goods , The platform will also start from Product content 、 Sales information 、 Qualifications 、 Consumer feedback And so on , In order to determine whether the business is selling fake goods .

at present , Ali's security team has used technology to crack down on counterfeiting , Assisted the police in several cases , There is a big case of luxury goods and fake goods alone 6 rise , And destroyed the production dens 10 More than a 、 Arrest of criminal suspect 150 More than .

among , Include 2020 year 8 month , Shanghai police made it public “ Shanghai Qingpu produces and sells counterfeit products LV Registered trademark goods case ”, The amount of money involved in this case Over 100 million yuan .

It does sound very coooool.


 There are too many fakes on the Internet , You can't hold it , Give Way AI Come on

The coolest thing is , Ali has used it for training logo The data set was made public .

Trained logo The data set is public

According to the Alibaba security team , This public dataset is called Open Brand.

Open Brand It's the biggest luxury in the world logo Data sets , contain 500 Multiple luxury categories 、1000 Multiple subcategories of trademarks , The cumulative amount is more than 100 Thousands of copies trademark logo picture .

Each image , Press COCO structure Marked in detail :


 There are too many fakes on the Internet , You can't hold it , Give Way AI Come on

logo The number of images is also hanging from other data sets ……


 There are too many fakes on the Internet , You can't hold it , Give Way AI Come on

According to the Alibaba security team , The photo data in the dataset , All from Taobao 、 Tmall 、1688、Aliexpress, And Google and Baidu search engines .

According to the open data protocol , The photos in these datasets , Only used for Academic research , Not for commercial use .

AI The crackdown on counterfeits , You can also participate in

In order to find a better AI Cracking down on fake models , Ali's security team made a 「 Robust identity detection challenge 」, Bonus 30 ten thousand .

Simply speaking , Ali's experienced security team , Will incarnate “ Fake merchants ”, For the contestants to submit AI Crack down on fake models to make all kinds of tests .

for example , On purpose logo Images are processed in various ways ( Fuzzy 、 Add watermark 、 Generate countermeasure samples ), have a look AI Can the anti-counterfeiting model be accurately identified .


 There are too many fakes on the Internet , You can't hold it , Give Way AI Come on

And the data sets that competitors use to train , It's this big public logo Data sets Open Brand, You can get .

Just take part in the competition , You can get access to College team 、 Safety Daniel A chance to compete .


 There are too many fakes on the Internet , You can't hold it , Give Way AI Come on

at present , The rankings are still being updated .

Do you have a heart attack ?

Ali AI Anti counterfeiting competition ( Access to public data sets ):
https://tianchi.aliyun.com/competition/entrance/531888/information

Brand Net Address of thesis :
https://arxiv.org/abs/2012.07350

— End —

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