使用数据增强进行认知属性的监督诊断分类
Ji-Young Yoon1, Gahgene Gweon2, Yun Joo Yoo1
1Department of Mathematics Education, Seoul National University, Seoul, South Korea.
PloS one
|January 5, 2024
概括
本研究引入了数据增强的监督诊断分类模型 (SDCM-DA),以改善学生在教育评估中的认知状态诊断. 数据增强显著提高了分类准确性,即使具有有限或不完美的专家标签.
科学领域:
- 人工智能的人工智能
- 教育测量教育的测量
- 机器学习 机器学习
背景情况:
- 机器学习 (ML) 提供跨部门的数据驱动决策,包括教育评估.
- 诊断分类模型 (DCM) 诊断学生的认知状态,但面临着隐藏,未标记数据的挑战.
- 在DCM中现有的ML应用通常依赖于小的,专家标记的数据集.
研究的目的:
- 提出一个数据增强的监督诊断分类模型 (SDCM-DA).
- 在教育评估中提高学生认知状态的分类准确性.
- 在将ML应用于DCM时,应对有限的标记数据所带来的挑战.
主要方法:
- 开发了一个数据增强的监督诊断分类模型 (SDCM-DA).
- 从专家标记的数据中构建数据生成模型,使用正确答案的概率.
- 进行了模拟研究,将SDCM-DA与传统方法进行比较,仅使用专家标记的数据.
主要成果:
- 数据增强大大提高了分类准确度.
- 即使在小的,容易出错的标记样本上也观察到更好的性能.
- 在不需要明确的底层响应模型的情况下,可以实现有效的学生分类.
结论:
- SDCM-DA有效地利用增强数据来改善诊断分类.
- 该方法对有限和不完美的专家标签和质量较低的测试项目具有稳定性.
- 这种方法通过克服数据限制,在教育评估中推进了ML应用.
相关概念视频
Aggregates Classification
326
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...
326
Classification of Systems-II
146
Continuous-time systems have continuous input and output signals, with time measured continuously. These systems are generally defined by differential or algebraic equations. For instance, in an RC circuit, the relationship between input and output voltage is expressed through a differential equation derived from Ohm's law and the capacitor relation,
146
Force Classification
1.2K
Forces play a crucial role in the study of physics and engineering. They are essential in describing the motion, behavior, and equilibrium of objects in the physical world. Forces can be classified based on their origin, type, and direction of action.
Contact and non-contact forces are two of the most widely used categories of forces. As the name suggests, contact forces require physical contact between two objects to act upon each other. Examples of contact forces include frictional,...
Contact and non-contact forces are two of the most widely used categories of forces. As the name suggests, contact forces require physical contact between two objects to act upon each other. Examples of contact forces include frictional,...
1.2K
Classification of Systems-I
188
Linearity is a system property characterized by a direct input-output relationship, combining homogeneity and additivity.
Homogeneity dictates that if an input x(t) is multiplied by a constant c, the output y(t) is multiplied by the same constant. Mathematically, this is expressed as:
Homogeneity dictates that if an input x(t) is multiplied by a constant c, the output y(t) is multiplied by the same constant. Mathematically, this is expressed as:
188
How Data are Classified: Categorical Data
32.8K
A variable, usually notated by capital letters such as X and Y, is a characteristic or measurement that can be determined for each member of a population. Data are the actual values of variables. They may be numbers, or they may be words. Datum is a single value.
Data are classified based on whether they are measurable or not. Categorical data cannot be measured; instead, it can be divided into categories. For example, if Y denotes a person's party affiliation, some examples of Y include...
Data are classified based on whether they are measurable or not. Categorical data cannot be measured; instead, it can be divided into categories. For example, if Y denotes a person's party affiliation, some examples of Y include...
32.8K
Associative Learning
378
Associative learning is a fundamental concept in behavioral psychology, wherein a connection is established between two stimuli or events, leading to a learned response. This process is critical in understanding how behaviors are acquired and modified. Conditioning, the mechanism through which associations are formed, can be divided into two main types: classical conditioning and operant conditioning, each elucidating different aspects of associative learning.
Classical conditioning, also known...
Classical conditioning, also known...
378


