Knowledge Commons of Institute of Automation,CAS
Contextualized Latent Semantic Indexing: A New Approach to Automated Chinese Essay Scoring | |
Yanyan Xu; Dengfeng Ke; Kaile Su | |
发表期刊 | Journal of Intelligent Systems |
2017 | |
期号 | 26页码:263-285 |
摘要 | The writing part in Chinese language tests is badly in need of a mature automated essay scoring system. In this paper, we propose a new approach applied to automated Chinese essay scoring (ACES), called contextualized latent semantic indexing (CLSI), of which Genuine CLSI and Modified CLSI are two versions. Then-gram language model and the weighted finite-state transducer (WFST), two critical components, are used to extract context information in our ACES system. Not only does CLSI improve conventional latent semantic indexing (LSI), but bridges the gap between latent semantics and their context information, which is absent in LSI. Moreover, CLSI can score essays from the perspectives of language fluency and contents, and address the local overrating and underrating problems caused by LSI. Experimental results show that CLSI outperforms LSI, Regularized LSI, and latent Dirichlet allocation in many aspects, and thus, proves to be an effective approach. |
关键词 | Automated Chinese Essay Scoring Latent Semantic Indexing N-gram Language Model Weighted Finite-state Transducer Natural Language Processing |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ia.ac.cn/handle/173211/40809 |
专题 | 多模态人工智能系统全国重点实验室_智能交互 |
推荐引用方式 GB/T 7714 | Yanyan Xu,Dengfeng Ke,Kaile Su. Contextualized Latent Semantic Indexing: A New Approach to Automated Chinese Essay Scoring[J]. Journal of Intelligent Systems,2017(26):263-285. |
APA | Yanyan Xu,Dengfeng Ke,&Kaile Su.(2017).Contextualized Latent Semantic Indexing: A New Approach to Automated Chinese Essay Scoring.Journal of Intelligent Systems(26),263-285. |
MLA | Yanyan Xu,et al."Contextualized Latent Semantic Indexing: A New Approach to Automated Chinese Essay Scoring".Journal of Intelligent Systems .26(2017):263-285. |
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