<p>The explosive growth of multimedia data, including text, audio, images and video has imposed unprecedented challenges for search engines to meet various information needs of users. This unit provides students with the necessary and updated knowledge of this field in the context of big data, from the information retrieval basics of a search engine, to many advanced techniques towards next generation search engines, such as content based image and video retrieval, large scale visual information retrieval, and social media.</p> <p>文本、音频、图像和视频等多媒体数据的爆炸式增长,给搜索引擎满足用户各种信息需求带来了前所未有的挑战。本单元为学生提供必要的和更新在这一领域的知识在大数据的背景下,从搜索引擎的信息检索基础知识,许多先进的技术向下一代搜索引擎,基于内容的图像和视频检索等大型视觉信息检索和社交媒体。</p>
