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粉笔自研智能批改系统,累计批改题目达1.5亿道

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2023-05-09 21:28:46 转载来源: 网易科技报道 北京

5月9日消息,粉笔方面透露,旗下智能批改系统从开发至今,累计批改题目达到1.5亿道。仅2022年一年,该系统就服务超过220万人,共计批改题目6467万道

5月9日消息,粉笔方面透露,旗下智能批改系统从开发至今,累计批改题目达到1.5亿道。仅2022年一年,该系统就服务超过220万人,共计批改题目6467万道。

据介绍,粉笔的智能批改系统所应用的技术与ChatGPT同属于Transformer深度神经网络模型,部分功能基于BERT模型开发研究。整个系统在预处理、召回、过滤和排序等阶段,用到了多种机器学习相关模型,比如BERT+BiLSTM(用于大作文分段) ,RoBERTa(用于语义匹配),BERT-SUM(用于分论点提取)等,从而达到更为精准的评判效果。


据悉,一道大题从评估到得出最终分数,该系统用时仅需95毫秒,效率高于人工评判。

根据粉笔内部计算, 教师对每道题进行同等质量的评分大概需要5-10分钟,以此推算教师人工批改题目的成本约为10元/题,如人工可承载系统同等的工作量,需要支付超过6亿元的人工成本。粉笔方面表示,智能批改系统在帮助粉笔覆盖更多用户的同时,也将产生不小的经济效益。

粉笔表示,未来将对人工智能进行更深化的探索,将在语义匹配以及大作文论点匹配方面加大投入,做重点优化,并将完善整体打分功能,做更为细致的分档,让其更像一名“合格的教师”。

此外,粉笔也在做新的技术开发,基于已公开数据模型LLaMA (Large Language Model Meta AI)做定制化尝试,未来将会应用在咨询、客服、问答等多个方面,让用户随时随地都能得到及时且标准的回复,同时帮助用户找到更便于接受的教学方式做到“因材施教”。(一橙)

标签: 批改 粉笔 自研 智能 系统 累计 题目 1.5亿道


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