相关实验视频
一个改进的人工大猩猩部队优化器用于BP基于神经网络的住房价格预测
1University of Birmingham Joint Institute at Jinan University, Jinan University, Jinan, China.
PloS one
|September 17, 2025
概括
这项研究引入了改进的大猩猩部队优化器 (IGTO),以提高房屋价格预测的准确性. IGTO-BPNN模型显著优于现有方法,提供更可靠的房地产市场预测.
科学领域:
- 人工智能的人工智能
- 机器学习 机器学习
- 计算经济学计算经济学
背景情况:
- 在全球经济紧缩的背景下,准确的房价预测至关重要.
- 对于有效的预测,BP神经网络需要参数优化.
- 像GTO这样的现有元启发算法在多样性和融合方面存在局限性.
研究的目的:
- 开发一个增强的大猩猩部队优化器 (IGTO),解决GTO的局限性.
- 构建和评估基于IGTO的BP神经网络 (IGTO-BPNN) 用于房价预测.
- 为了证明IGTO-BPNN在其他算法和机器学习模型中的优势.
主要方法:
- 建议对GTO进行改进:健身分配,考奇变异和精英进化.
- 开发了一个IGTO-BPNN模型用于房价预测.
- 在四个数据集 (波士顿,加利福尼亚-海湾,加利福尼亚-陆地,台湾) 上进行了实验,并与11个群体智能和4个机器学习模型进行了比较.
主要成果:
- 在五个评估指标 (MAE,MAPE,R2,RMSE,SMAPE) 中,IGTO-BPNN表现出显著的改善.
- 具体改善率在17.66% (MAE) 到49.35% (RMSE) 之间.
- 改进后的模型始终优于现有的算法和机器学习方法.
结论:
- 拟议的IGTO有效地优化了BP神经网络参数,用于房价预测.
- 与传统方法相比,IGTO-BPNN提供了更高的准确性和有效性.
- 这个模型为导航房地产市场动态提供了一个强大的工具.
相关概念视频
Prediction Intervals
3.3K
The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
3.3K
Improving Translational Accuracy
14.1K
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
14.1K
Improving Translational Accuracy
3.6K
3.6K
End Point Prediction: Gran Plot
1.2K
A Gran plot is used to predict the equivalence volume or endpoint of a potentiometric or acid-base titration without reaching the endpoint. Typically, titration data is collected as a function of the titrant's volume up to a point less than the equivalence volume and then transformed into a linear format. The straight line is extended to the x-axis, indicating the necessary titrant volume to achieve the equivalence point.
For potentiometric titration, the Gran plot is created by plotting...
For potentiometric titration, the Gran plot is created by plotting...
1.2K
Observational Learning
841
Albert Bandura's observational learning, also known as imitation or modeling, occurs when a person observes and imitates another's behavior. It is a quicker process than operant conditioning. A well-known example is the Bobo doll study, where children who saw an adult acting aggressively towards the doll were more likely to act aggressively when left alone, compared to those who observed a nonaggressive adult. Many psychologists view observational learning as a form of latent learning...
841