ads-searching-web-server Designed and developed web crawler which crawled thousands product data from Amazon (Java, JSoup, Proxy) Developed Search Ads workflow which support: Query understanding, Ads selection from inverted index, Ads ranking, Ads filter, Ads pricing, Ads allocation (Java, Jetty, MySQL, MemCached) Predict click probability with features generated from simulated search log (Python, SparkMLlib) Implemented Query rewrite with word2vector algorithm (Python, SparkMLlib)