用深度学习自动回复农民农业问题,准确率达96.58%。
KisanQRS: A Deep Learning-based Automated Query-Response System for Agricultural Decision-Making
- 通过语义与词法相似度聚类农民主动提问,快速分组匹配。
- 在5个省份30万样本上实现96.58%的F1分数,显著优于传统方法。
- 适合政府农业热线、智慧农业平台等需高效响应的场景。
为提升农业决策中信息传递的及时性,本文提出基于深度学习的农作物咨询应答系统KisanQRS。该系统整合查询的语义与词法相似性,采用基于线性搜索的快速阈值聚类算法,对全部查询进行迭代分组。查询映射阶段发现LSTM表现最优;答案检索模块则对特定作物候选答案聚类,按簇内答案数量排序并选取代表答案。实验基于印度政府运营的基桑呼叫中心(KCC)数据集,包含3400万条通话记录,其中查询映射模块在五个主要州共30万样本上评估,实现96.58%的最高F1得分;答案检索模块在1万样本上取得96.20%的NDCG分数。结果表明,KisanQRS能有效提升农业咨询服务的准确性与响应速度,助力农民快速获取精准建议。
原文摘要 · Abstract (English)
Delivering prompt information and guidance to farmers is critical in agricultural decision-making. Farmers helpline centres are heavily reliant on the expertise and availability of call centre agents, leading to inconsistent quality and delayed responses. To this end, this article presents Kisan Query Response System (KisanQRS), a Deep Learning-based robust query-response framework for the agriculture sector. KisanQRS integrates semantic and lexical similarities of farmers queries and employs a rapid threshold-based clustering method. The clustering algorithm is based on a linear search technique to iterate through all queries and organize them into clusters according to their similarity. For query mapping, LSTM is found to be the optimal method. Our proposed answer retrieval method clusters candidate answers for a crop, ranks these answer clusters based on the number of answers in a cluster, and selects the leader of each cluster. The dataset used in our analysis consists of a subset of 34 million call logs from the Kisan Call Centre (KCC), operated under the Government of India. We evaluated the performance of the query mapping module on the data of five major states of India with 3,00,000 samples and the quantifiable outcomes demonstrate that KisanQRS significantly outperforms traditional techniques by achieving 96.58% top F1-score for a state. The answer retrieval module is evaluated on 10,000 samples and it achieves a competitive NDCG score of 96.20%. KisanQRS is useful in enabling farmers to make informed decisions about their farming practices by providing quick and pertinent responses to their queries.
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