发明名称 |
INTELLIGENT FEATURE EXPANSION OF ONLINE TEXT ADS |
摘要 |
<p>Embodiments employ knowledge from network searches to enrich features useable to describe an advertisement. Advertisement content may be segmented to generate key phrases that are rank ordered based on a phrase's pointwise mutual information value with Ad keywords and term frequency - inverse document frequency (TF-IDF) scores. These key phrases are employed to generate a plurality of query searches that are performed to generate a plurality of search result snippets. The snippets are then analyzed and ranked to identify query expansion features having a TF-IDF value over a given threshold. A subset of these ranked phrases are combined with the Ad keywords to be used to rebuild an Ad index for the given advertisement. When content is to be delivered to a client device, content keywords are compared to the Ad index to select an advertisement to be provided with the content to the client device.</p> |
申请公布号 |
WO2011106907(A1) |
申请公布日期 |
2011.09.09 |
申请号 |
WO2010CN00261 |
申请日期 |
2010.03.04 |
申请人 |
YAHOO! INC.;HU, JIAN;ZHENG, HAO |
发明人 |
HU, JIAN;ZHENG, HAO |
分类号 |
G06F17/30 |
主分类号 |
G06F17/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|