arXiv:2409.05335cs.LGcs.AI2024-09被引 11

融合图文与位置信息,提升房产价格预测精度

A Multi-Modal Deep Learning Based Approach for House Price Prediction

  • 多模态深度学习融合属性、文本、图像和地理信息
  • 结合文本与图像嵌入使预测误差降低21.3%
  • 适合房地产智能定价与金融风控领域使用

准确预测房价是住宅房地产领域的重要课题,对多方利益相关者具有重要意义。然而,由于房屋特征、地理位置、周边环境等多重因素影响,房价预测极具挑战性。现有方法虽广泛采用各类算法,包括近期深度学习技术,但普遍未充分考虑文本描述和视觉特征等关键信息。本文提出一种多模态深度学习方法,全面整合房产列表中常见的属性、文本描述、地理空间邻域及房屋图像等多源数据,构建房屋的联合嵌入表示。具体而言,模型学习原始属性、地理空间特征、文本描述及房屋图像的联合嵌入向量,并通过下游回归模型预测房价。在真实数据集上的实验表明,引入房屋广告文本嵌入与图片嵌入,相较于仅使用原始属性与地理嵌入,可显著提升预测精度,平均绝对误差降低21.3%。相关代码与数据集已公开于https://github.com/4P0N/mhpp。

原文摘要 · Abstract (English)

Accurate prediction of house price, a vital aspect of the residential real estate sector, is of substantial interest for a wide range of stakeholders. However, predicting house prices is a complex task due to the significant variability influenced by factors such as house features, location, neighborhood, and many others. Despite numerous attempts utilizing a wide array of algorithms, including recent deep learning techniques, to predict house prices accurately, existing approaches have fallen short of considering a wide range of factors such as textual and visual features. This paper addresses this gap by comprehensively incorporating attributes, such as features, textual descriptions, geo-spatial neighborhood, and house images, typically showcased in real estate listings in a house price prediction system. Specifically, we propose a multi-modal deep learning approach that leverages different types of data to learn more accurate representation of the house. In particular, we learn a joint embedding of raw house attributes, geo-spatial neighborhood, and most importantly from textual description and images representing the house; and finally use a downstream regression model to predict the house price from this jointly learned embedding vector. Our experimental results with a real-world dataset show that the text embedding of the house advertisement description and image embedding of the house pictures in addition to raw attributes and geo-spatial embedding, can significantly improve the house price prediction accuracy. The relevant source code and dataset are publicly accessible at the following URL: https://github.com/4P0N/mhpp

房价预测多模态学习深度学习

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