SQGE:支持查询原型指导和增强为几次射击的关系三重提取
Chen Gao1, Xuan Zhang2, Zhi Jin3
1School of Information Science and Engineering, Yunnan University, Yunnan 650091, China.
概括
本研究引入了一种新的几次射击关系三重提取 (FS-RTE) 方法,以解决数据稀缺问题. 拟议的SQGE方法有效地减少了类内和类间的差距,提高了提取精度.
科学领域:
- 自然语言处理自然语言处理.
- 机器学习 机器学习
- 人工智能的人工智能
背景情况:
- 使用原型网络的短拍关系三重提取 (FS-RTE) 方法由于数据有限而面临挑战.
- 支持集中的数据稀缺导致类内和类间的差距,阻碍了准确的特征表示和分类.
研究的目的:
- 提出一种新的FS-RTE方法,支持查询原型指导和增强 (SQGE),以克服数据稀缺的局限性.
- 通过改善支持和查询集之间的特征匹配来减少类内差距.
- 通过增强实体表示和利用对比学习来缓解类间的差距.
主要方法:
- 一个支持查询原型指南模块融合了支持和查询原型,以更好地捕捉基本特征.
- 实体级特征增强细化了同一类内的目标实体的表示.
- 相反的学习构建了积极和消极的实例,以加强 intra-class 代表性和区分类别.
主要成果:
- 在FS-RTE中,SQGE方法在减少类内和类间差距方面表现出显著的有效性.
- 三个数据集的实验结果验证了拟议方法的卓越性能.
- 该方法在低数据场景中成功提高了关系三重提取的准确性.
结论:
- 拟议的SQGE方法为少数拍摄的关系三重提取提供了一个强大的解决方案.
- SQGE有效地解决了数据稀缺所带来的挑战,从而提高了模型性能.
- 该方法为低资源信息提取领域做出了有价值的贡献.
相关概念视频
Extraction: Advanced Methods
398
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
398
Woodward–Hoffmann Selection Rules and Microscopic Reversibility
3.0K
Electrocyclic reactions, cycloadditions, and sigmatropic rearrangements are concerted pericyclic reactions that proceed via a cyclic transition state. These reactions are stereospecific and regioselective. The stereochemistry of the products depends on the symmetry characteristics of the interacting orbitals and the reaction conditions. Accordingly, pericyclic reactions are classified as either symmetry-allowed or symmetry-forbidden. Woodward and Hoffmann presented the selection criteria for...
3.0K
Collisions in Multiple Dimensions: Problem Solving
3.5K
In multiple dimensions, the conservation of momentum applies in each direction independently. Hence, to solve collisions in multiple dimensions, we should write down the momentum conservation in each direction separately. To help understand collisions in multiple dimensions, consider an example.
A small car of mass 1,200 kg traveling east at 60 km/h collides at an intersection with a truck of mass 3,000 kg traveling due north at 40 km/h. The two vehicles are locked together. What is the...
A small car of mass 1,200 kg traveling east at 60 km/h collides at an intersection with a truck of mass 3,000 kg traveling due north at 40 km/h. The two vehicles are locked together. What is the...
3.5K
Second Uniqueness Theorem
955
Consider a region consisting of several individual conductors with a definite charge density in the region between these conductors. The second uniqueness theorem states that if the total charge on each conductor and the charge density in the in-between region are known, then the electric field can be uniquely determined.
In contrast, consider that the electric field is non-unique and apply Gauss's law in divergence form in the region between the conductors and the integral form to the...
In contrast, consider that the electric field is non-unique and apply Gauss's law in divergence form in the region between the conductors and the integral form to the...
955
Collisions in Multiple Dimensions: Introduction
4.7K
It is far more common for collisions to occur in two dimensions; that is, the initial velocity vectors are neither parallel nor antiparallel to each other. Let's see what complications arise from this. The first idea is that momentum is a vector. Like all vectors, it can be expressed as a sum of perpendicular components (usually, though not always, an x-component and a y-component, and a z-component if necessary). Thus, when the statement of conservation of momentum is written for a...
4.7K
Scalar and Vector Triple Products
2.3K
Two vectors can be multiplied using a scalar product or a vector product. The resultant of a scalar product is scalar, while with vector products, the resultant is a vector. These rules of the scalar or vector product between two vectors can be applied to multiple vectors to obtain meaningful combinations. The scalar triple product is the dot product of a vector with the cross product of two vectors.
The scalar triple product is the dot product of a vector with the cross product of two vectors....
The scalar triple product is the dot product of a vector with the cross product of two vectors....
2.3K


