information retrieval modelsinformation retrieval system ‐ software programme storing information on documentsinformation retrieval processesquery formulation processexact match modelsvector space approachesprobabilistic approachessimplified inference networkPageRank ‐ so‐called static ranking function...
2) Dense Retrieval Models: 通过将输入文本(查询和文档)映射到独立的稠密表示,并使用近似最近邻算法来做快速检索。3) Hybrid Retrieval Models:将sparse和dense retrievel models同时使用。 3.1 Sparse Retrieval Models Sparse retrieval models主要通过获得更好的文本表示来提升检索效果,比如传统term-based方法中的bag-...
So, what is the theory of information retrieval? There is not one convincing answer to this question. There are many theories, here called formal models, and each model is helpful for the development of some information retrieval tools, but not so helpful for the development others. In order...
1.1、sparse retrieval models 1.1.1、term re-weighting Context-aware sentence/passage term importance estimation for first stage retrieval 引用65次,2019年 Context-aware term weighting for first stage passage retrieval 引用24次,2020年 这两篇文章讲的都是DeepCT。模型结构比较简单,直接使用bert模型为每个term...
This thesis is situated in the context of logic-based Information Retrieval (IR) models. The work presented in this thesis is mainly motivated by the inadequate term-independence assumption, which is well-accepted in IR although terms are normally related, and also by the inferential nature of ...
Information retrieval is the process of accessing and retrieving relevant information from vast sources, such as databases, the web, or document collections. Learn more about it through this blog.
A novel 3D model retrieval approach using combined shape distribution With the rapid development of 3D digital shape information, content-based 3D model retrieval has become an important research field. 3D models are likely t... KS Zou,WH Ip,CH Wu,... - 《Multimedia Tools & Applications》 被...
论文分享:BEIR A Heterogeneous Benchmark for Zero-shot Evaluation of Information Retrieval Models 分享论文,夹带个人理解的分享,建议结合原论文看。 1 研究背景 本论文主要关注的领域是query-document检索(下文简称qd检索),即根据query去文档库里找到最相关的文档。相比相似句匹配,query和document是异质的,document比较...
参考文献 1. Wang J, Yu L, Zhang W, et al. IRGAN: A Minimax Game for Unifying Generative and Discriminative Information Retrieval Models[J]. arXiv preprint arXiv:1705.10513, 2017. 编辑于 2017-06-08 16:11 内容所属专栏 学术兴趣小组 欢迎交流,欢迎投稿。 订阅专栏 ...
An information retrieval model based on modal logic Most currently used information retrieval models are unsuitable to describe and integrate many recent techniques, namely those for the semantic-based retri... J Nie - 《Information Processing & Management》 被引量: 230发表: 1989年 Modeling the re...