the marriage between music and machine learning in kkbox

The Marriage of Music and Machine Learning in KKBOX

Research Center of KKBOX

Collaborative Filtering

Matrix Factorization

Word2Vec - “The results, to our own surprise, show that the buzz is fully justified, as the context-predicting models obtain a thorough and resounding victory against their count-based counterparts.” - Marco et al.

“You should know the word by the company it keeps” (Firth J.R.)

CBOW

CBOW Skip-gram

CBOW Skip-gram

DeepWalk (Bryan Perozzi, Rami Al-Rfou& Steven Skiena, 2014 )

Random Walk Word2Vec

Short truncated random walks are sentences in an artificial language

Random walk distance is known to be good features for many problemsfor example: a. Recommendation b. Search optimization despite accuracy, gives the sense of serendipity

青花瓷 珊瑚海 我不配 給我一首歌的時間

黃金甲 珊瑚海 雙截棍 天地一鬥

Cold start ?

Learn the relationships between laten factors and audio signals

Future Directions

Hybrid of collaborative filtering and content based techniques

Trending/Popular within user segments

Optimizing for various metrics drive business goals