使用机器学习对集体拥有的商业化建筑用地进行批量评估
Wenzhu Zhang1, Licheng Huang2, Shengquan Lu3
1College of natural resources and surveying and mapping, Nanning Normal University, Nanning, 530100, China.
Scientific reports
|August 7, 2025
概括
机器学习模型改善了中国集体拥有的商业化建筑用地 (CCCL) 价格评估. 随机森林模型实现了94.77%的准确性,为市场进入估值提供了更高效,更精确的方法.
科学领域:
- 农业和经济科学 农业和经济科学
- 土地经济 土地经济学
- 机器学习应用 机器学习应用
背景情况:
- 中国农村土地制度改革包括集体拥有的商业化建筑用地 (CCCL) 进入市场.
- 传统的估价方法缺乏CCCL市场准入价格批量估价的效率和准确性.
研究的目的:
- 开发基于机器学习的批量评估模型,用于CCCL的市场入口价格.
- 为了提高CCCL价格预测的效率和准确性.
- 确定影响CCCL价格的关键因素.
主要方法:
- 实施了三种机器学习模型:随机森林 (RF),反向传播神经网络 (BPNN) 和支持矢量机器 (SVM).
- 开发一个定制的指标系统来预测贝柳市的价格,这是一个改革试点地区.
- 基于预测准确度和平均绝对误差对模型性能进行比较分析.
主要成果:
- 随机森林 (RF) 模型表现出卓越的性能,预测准确率为94.77%,平均绝对误差为17.50元.
- 射频的表现优于BPNN (91.21%的准确率) 和SVM (91.94%的准确率).
- CCCL价格受到乡镇经济水平和进入市场的方法等因素的影响,具有独特的特点.
结论:
- 机器学习模型,特别是RF,对于批量评估CCCL进入市场价格是有效的.
- 该研究为标准化土地市场提供了科学基础,并指导了农村土地改革的政策制定.
- 准确的CCCL价格预测对于高效的土地市场运营和改革至关重要.
相关概念视频
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
101
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
101
The Colonization of Land
35.7K
Changes in the environment of the early Earth drove the evolution of organisms. As prokaryotic organisms in the oceans began to photosynthesize, they produced oxygen. Eventually, oxygen saturated the oceans and entered the air, resulting in an increase in atmospheric oxygen concentration, known as the oxygen revolution approximately 2.3 billion years ago. Therefore, organisms that could use oxygen for cellular respiration had an advantage. More than 1.5 years ago, eukaryotic cells and...
35.7K
Design Example: Managing Concrete Workability
121
This example deals with managing the workability of concrete for a raft foundation project under hot weather conditions. Workability is crucial for ensuring the concrete is easy to place, compact, and finish. In this scenario, a slump test — a common method to measure the workability of fresh concrete — initially indicated low workability. This was attributed to the rapid water loss from the concrete mix, exacerbated by the high temperatures causing the course aggregates to heat up.
121
Design Example: Aggregate Gradation
149
The right type and quality of aggregates are crucial for concrete as they significantly influence its properties, mix proportions, and cost-effectiveness. If different sources are available for sand, the commonly used fine aggregate in concrete, the selection of sand is primarily based on its gradation.
The grading, or particle-size distribution, of sand is determined using sieve analysis, with standard sizes ranging from 150 μm to 10 mm (ASTM No. 100 sieve to 3⁄8 in. sieve). Sand is...
The grading, or particle-size distribution, of sand is determined using sieve analysis, with standard sizes ranging from 150 μm to 10 mm (ASTM No. 100 sieve to 3⁄8 in. sieve). Sand is...
149
Methods of Obtaining Topography
118
Topography involves measuring and mapping land elevations, natural features, and artificial structures to create accurate representations of the terrain. Topographic surveying relies on traditional and modern methods, each with distinct advantages and limitations.Traditional Surveying Methods:Transit stadia surveys and plane table surveys were widely used traditional surveying methods. These techniques relied on instruments like theodolites and stadia rods for measuring distances and angles,...
118
Aggregates Classification
384
Aggregate classification is generally based on its size, petrographic characteristics, weight, and source. Size classification ranges from coarse to fine aggregates, defined by the size of the particles. Coarse aggregates are particles that do not pass through ASTM sieve No. 4, and aggregates that pass through the sieve are fine aggregates.
Petrographic classification groups aggregates based on common mineralogical characteristics. Some of the common mineral groups found in aggregates are...
Petrographic classification groups aggregates based on common mineralogical characteristics. Some of the common mineral groups found in aggregates are...
384


