{"resolved":true,"match_type":"uuid","source_type":"original_book","book_id":"06dd97ec-cce5-45df-9acf-40e36f07dab3","title":"[数字经济前沿]技术封建主义","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787300328508","requested_by":"printed_page","book":{"source_type":"original_book","book_id":"06dd97ec-cce5-45df-9acf-40e36f07dab3","id":"06dd97ec-cce5-45df-9acf-40e36f07dab3","uuid":"06dd97ec-cce5-45df-9acf-40e36f07dab3","title":"[数字经济前沿]技术封建主义","normalized_title":"数字经济前沿技术封建主义","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787300328508","isbns":["9787300328508"],"parsed":true,"ai_readable":true,"document_type":"book","page_count":259,"navigation_url":"https://workshop.closeclaw.top/ai/book/06dd97ec-cce5-45df-9acf-40e36f07dab3","title_url":"https://workshop.closeclaw.top/ai/title/%5B%E6%95%B0%E5%AD%97%E7%BB%8F%E6%B5%8E%E5%89%8D%E6%B2%BF%5D%E6%8A%80%E6%9C%AF%E5%B0%81%E5%BB%BA%E4%B8%BB%E4%B9%89","fixed_page_url_template":"https://workshop.closeclaw.top/ai/book/06dd97ec-cce5-45df-9acf-40e36f07dab3/page/{printed_page}","path_api_url_template":"https://workshop.closeclaw.top/api/ai/book/06dd97ec-cce5-45df-9acf-40e36f07dab3/page/{printed_page}","read_url":"https://workshop.closeclaw.top/api/ai/read/06dd97ec-cce5-45df-9acf-40e36f07dab3","page_url":"https://workshop.closeclaw.top/api/ai/books/06dd97ec-cce5-45df-9acf-40e36f07dab3/page","search_url":"https://workshop.closeclaw.top/api/ai/books/06dd97ec-cce5-45df-9acf-40e36f07dab3/search"},"page":{"printed_page":92,"pdf_page":132,"physical_index":132,"physical_index_base":0,"printed_page_status":"recognized","page_sha256":"5226f21257c923777d0b3e0834bc0b3fe5102c02d2edf13b88e856caa7bb18d9"},"chapter":"第二章","content":"技术封建主义\n\n户购买和评估的每件物品都与相似物品相关联，然后这些物品根据接近程度被组合在一个推荐列表中。①该列表通过各种指标进行完善。例如，它包括一个时间维度，以便系统整合某些购买的顺序逻辑（如文学系列的连续卷本）或个人的社会生物学轨迹（年龄增长、与孩子出生相关的周期等）。这种技术的一个主要优点在于，大部分计算都离线进行，因此系统功能强大，运行速度快。该系统非常有效。点击率和购买转化率都非常高。据说，亚马逊上约有30%的页面浏览量是通过它产生的。网飞也采用了同样的流程，80%的视频观看都要经过这一中介，这使其成为公司估值的关键因素之一。②因此，推荐与行动之间的关系循环往复。目标定位的质量取决于推荐的质量；反之，推荐做法通过参与者的行动得到验证，从而为未来推荐的循环提供信息。\n\n谷歌与语境优先级。Alphabet是谷歌的母公司，它主要是一家广告公司。2017年，广告创造了该公司收入的87%，该公司控制了全球在线广告市场33%的份额（总额2240亿美元中的740亿美元），在美国控制了42%的份额。让谷歌发家致富的广告空间销售系统基于两个因素，这两个因素的力量结合在一起。\n\n① Greg LINDEN, Brent SMITH et Jeremy YORK, « Amazon. com recommendations: Item-to-item collaborative filtering», IEEE Internet Com puting , vol. 1, n°1, 2003, p. 76-80.\n\n② Brent SMITH et Greg LINDEN, «Two decades of recommender systems at Amazon. com», loc. cit., p. 14.\n\n092","previous_page":91,"next_page":93}