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Information Retrieval Lab at Tsinghua University (THUIR) focuses on the research of Information Retrieval including but not limited to the theories, algorithms, and applications of intelligent search and recommendation systems. We aim to study and resolve the information mismatch between user's needs and information resources to provide the most reliable and valuable information to each individual.
清华大学智能技术与系统国家重点实验室信息检索课题组主要研究智能信息检索的理论与方法、智能推荐算法与系统，从不同角度研究如何消除用户需求与信息资源之间存在的不匹配问题，从而实现为用户提供最有价值的信息.
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{% capture text %} Led by Prof. Shaoping Ma, THUIR was founded in 1990s with a focus on the research of Information Retrieval. It is one of the earliest and most influential IR research labs in China. THUIR has published hundreds of papers in top-tier IR conferences/journals, and is ranked first in The Web & Information Retrieval in the global academic ranking of computer science research institutes, i.e., CSRankings.
THUIR实验室于20世纪90年代创建，在马少平教授的带领下从事信息检索相关研究工作，是国内开展相关研究最早、最具影响力的科研单位之一。自创立至今，实验室取得了一系列有世界影响力的原创成果，累计发表论文数百篇，全球计算机学术排行榜CSRankings 网络与信息检索方向第一名，已成为世界领先的信息检索研究机构。 {% include link.html link="publications" text="See what we've published 论文发表" icon="fas fa-arrow-right" flip=true %} {:.center} {% endcapture %}
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Currently, THUIR has four PIs and nearly thirty graduate students in the lab. In the past 30 years, more than 30 Ph.D. and 50 M.S. have graduated from THUIR, many of which have already served as leaders or faculty in industry and academia.
THUIR实验室现有研究生导师4人，在读博士及硕士近30人。在过去30年中，实验室培养了大批人工智能方向的优秀人才，其中包括博士30余名，硕士50余名，以及众多在组内实习和进行毕业设计的本科生、研究生。实验室校友在工业界和学术界取得突出成绩，其中包括多名著名互联网公司领导人、创始人，以及多所国内外知名高校教师教授。
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{% capture text %} THUIR and its collaborators has opensourced a couple of tools and large-scale datasets, including but not limited to ReChorus, ULTRA, Sogou-SRR, ZhihuRec, and many more.
THUIR实验室及合作单位已公开多个大规模信息检索数据及信息检索算法工具框架，其中包括推荐算法工具包ReChorus，无偏机器学习算法包ULTRA，搜狗搜索结果数据集Sogou-SRR，知乎推荐数据集ZhihuRec等.
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{% capture text %} THUIR is actively recruiting new Ph.D. and M.S. candidates every year. The opening is about 3-5 for Ph.D. candidates and 1 for M.S. candidates. We are also actively recruiting PostDoc every year, about 1 per year. Please find more information in the link below.
THUIR实验室长期招收博士生硕士生，每年面向本校、外校招收博士生3-4名，硕士生1名左右，欢迎感兴趣的同学点击下方链接查看申请、联系方式。此外，实验室每年招收博士后1名左右，意向者请通过下方链接进行岗位查看和咨询。
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