加强学生职业指导和情感分析:以绩效为导向的混合学习方法,具有特征排名
Sana Yaqoob1, Ayman Noor2, Talal H Noor2
1Department of Computer Science and Information Technology, University of Lahore, Lahore, Pakistan.
PloS one
|May 9, 2025
概括
本研究介绍了一种混合学习技术,用于准确的职业预测,改善特征选择和排名. 该方法提高了预测的准确性,帮助学生选择正确的职业道路.
科学领域:
- 机器学习 机器学习
- 职业发展 职业发展
- 数据科学数据科学数据科学
背景情况:
- 选择职业道路对学生来说是一个重大挑战,特别是在时间限制下.
- 现有的职业预测模型往往缺乏准确性,原因是缺少最佳特征选择和优先级.
研究的目的:
- 通过整合额外的属性和完善功能选择,开发一种增强的职业预测方法.
- 准确地确定,排序和优先考虑相关功能,以提高预测准确度.
- 消除非必要的特征,简化预测过程.
主要方法:
- 功能融合和规范化 (FFN) 用于精确的数据识别.
- 平均特征排名 (AFR) 使用随机森林 (RF) 和线性回归 (LR) 进行特征优先排名.
- 用加权特征 (PWF) 改进预测,整合主要组件 (PC) 分析以减少特征.
- 一个混合多层感知器 (MLP) 分类器与5倍交叉验证被用于性能评估.
主要成果:
- 混合方法确定了职业预测的优越特征集.
- 排名前十二的特征是根据平均射频得分和LR系数排名的.
- 预测准确度 (ACC) 为87%,精度 (P) 为87%,回忆率 (R) 为86%,F1得分为86%.
- 接收器运行特征曲线下的面积 (AUC-ROC) 达到92%.
结论:
- 拟议的混合学习技术在准确预测职业发展轨迹方面表现出高效.
- 精细的特征选择和优先级显著提高预测性能.
- 这种方法为面对职业道路选择挑战的学生提供了强大的解决方案.
相关概念视频
Reliability and Validity
12.6K
Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.
12.6K
Improving Translational Accuracy
8.5K
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...
8.5K
Self-Evaluation: Self-Enhancement and Self-Verification
5.1K
Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
5.1K
Stereotype Threat and Self-fulfilling Prophecies
37.2K
When we hold a stereotype about a person, we have expectations that he or she will fulfill that stereotype. A self-fulfilling prophecy is an expectation held by a person that alters his or her behavior in a way that tends to make it true. When we hold stereotypes about a person, we tend to treat the person according to our expectations. This treatment can influence the person to act according to our stereotypic expectations, thus confirming our stereotypic beliefs. Research by Rosenthal and...
37.2K
Predicting Reaction Outcomes
7.8K
Kinetics describes the rate and path by which a reaction occurs. In contrast, thermodynamics deals with state functions and describes the properties, behavior, and components of a system. It is not concerned with the path taken by the process and cannot address the rate at which a reaction occurs. Although it does provide information about what can happen during a reaction process, it does not describe the detailed steps of what appears on an atomic or a molecular level. On the other hand,...
7.8K
Ranks
205
Unlike parametric methods, nonparametric statistics are ideal for nominal and ordinal data, requiring fewer assumptions about the population's nature or distribution. This makes nonparametric methods easier to apply and interpret, as they do not depend on parameters like mean or standard deviation. One common approach in nonparametric analysis is to sort data according to a specific criterion. For instance, we might arrange weather data from hottest to coldest days in a month or rank cities...
205


