About a film recommendation algorithm patented spit Groove

Forgive me is a personality of the next, nit-picking is not my dish, spit groove is my true love.

Recently in the film recommendation algorithm to summarize the scoring algorithm, although a certain degree of God's Community competition last year involved a topic, that is, given the user's score data on the film, as well as some relevant user data, and then predict the user's rating of other movies. According to the ranking snapshot of certain days in a community, the top gods have been able to control the error below 0.6. To substantiate:

　　

The great God, after all, is the great God, as the great God, they in their scoring model constantly modified, continuous progress ~ However, look at a patent on the algorithm, a patent is using the SVD combination of KNN algorithm, applied for a patent, the result? Take a look at his error curve. Such as:

Using the iterative algorithm, 50 neighbors were used, and the error of about 0.7 was obtained. I have to say, China's patents do have so little, no, there is a lot of water ah. The random statistical model I used also got about 0.75 errors, no iterations, no neighbors. Or the game is more practical ah. A mule is a horse, and it is known that he pulls out and slips away. We constantly modify their models, and then continue to compete, and indeed can stimulate the development of the project which ~ by the way, this patent also said real-time, I really do not see this! Iterative process gradually accumulated, the number of neighbors gradually increased, the algorithm consumes more and more time, from this curve can be seen, this model is easy to reach the lower bound of error bar.

Spit Groove is almost over, the value of this patent is to give people an algorithm to improve the feeling of hope, the two algorithms combined, advantages and disadvantages of complementary, and then the accuracy of the algorithm .... Well, I guess I can write a patent too. Cough cough.

　　

About a film recommendation algorithm patented spit Groove