Integrating ensemble prediction constraints and error prediction entropy maximization for MLS point cloud classification
Bibliographic record
Abstract
目前，许多深度学习点云分类方法通过增加点云特征聚合模块，增强点云特征的表达能力。但该类方法往往会带来训练参数增加以及模型过拟合的问题。针对该问题，本文提出了一个整合集成预测约束与错误预测熵最大化的深度学习方法用于移动激光扫描（Mobile Laser Scanning， MLS）点云分类。方法通过集成预测约束分支以及错误预测熵最大化分支可以在不增加训练参数的情况下，增强基线网络的点云特征表达，提高模型泛化能力。其中集成预测约束分支首先通过记录点云在训练过程中的预测值，生成集成预测值，然后采用一致性约束增强模型的点云特征表达。错误预测熵最大化方法鼓励模型对错误预测点进行熵值最大化，增加该点的不确定性，提高模型的泛化能力。所提方法在多个公开MLS点云数据集上进行验证，结果表明所提方法可以在不增加训练参数的情况下，提高基线方法的分类性能。与对比方法相比，所提方法在Toronto3D、WHU-MLS、Paris数据集上获得了最优的平均交并比（83.68%、44.19%、65.85%），表明了方法的有效性。
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 0.008 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.002 | 0.002 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".