SUMMER: Bias-aware Prediction of Graduate Employment Based on Educational Big Data
Abstract
1 Introduction
2 Related Work
2.1 Employment and Recruitment
2.2 Temporal Convolutional Network
3 Problem Statement
4 Bias Analysis
4.1 Dataset
4.1.1 Demographic Data.
4.1.2 Academic Performance Data.
4.1.3 Employment Data.
4.2 Bias in Employment
4.2.1 Employment Bias of College-view.
Employment Status | ||||
---|---|---|---|---|
College | Hometown | Gender | Enroll Status | Ethnic Group |
College of Physical Sciences and Technology | 0.2072 | 0.1201 | 0.0025** | 0.9639 |
Literature College | 0.9543 | 0.9595 | 0.9097 | 0.8876 |
Music College | 0.7144 | 0.9123 | 0.0507 | 0.1594* |
Higher Vocational and Technical College | 0.7662 | 0.5452 | 0.1064 | 0.5648 |
Education College | 0.0469* | 0.0351* | 0.1303 | 0.1348 |
College of Chemistry and Life Sciences | 0.5078 | 0.7611 | 0.1778 | 0.4046 |
Business College | 0.9648 | 0.5745 | 0.9304 | 0.1616 |
Art College | 0.0947 | 0.0216* | 0.9621 | 0.8973 |
College of Mathematical and Information Sciences | 0.4229 | 0.1255 | 0.8849 | 0.0043** |
College of Social Development | 0.9658 | 0.6917 | 0.8470 | 0.7782 |
College of Foreign Languages | 0.5724 | 0.2382 | 0.1495 | 0.9367 |
Sport College | 0.2196 | 0.3299 | 0.7453 | 0.2460 |
Employment Preference | ||||
---|---|---|---|---|
College | Hometown | Gender | Enroll Status | Ethnic Group |
College of Physical Sciences and Technology | 0.9686 | 0.8316 | 0.5967 | 0.7309 |
Literature College | 0.9489 | 0.9434 | 0.6438 | 0.8931 |
Music College | 0.9965 | 0.6988 | 0.8759 | 0.0438* |
Higher Vocational and Technical College | 0.1177 | 0.9120 | 0.3104 | 0.3274 |
Education College | 0.2646 | 0.8289 | 0.4951 | 0.9946 |
College of Chemistry and Life Sciences | 0.0137* | 0.4199 | 0.0303* | 0.8107 |
Business College | 0.6881 | 0.0109* | 0.0625 | 0.8319 |
Art College | 0.8869 | 0.7146 | 0.8441 | 0.9197 |
College of Mathematical and Information Sciences | 0.9706 | 0.5757 | 0.8974 | 0.8720 |
College of Social Development | 0.8875 | 0.8985 | 0.225 | 0.2946 |
College of Foreign Languages | 0.3879 | 0.8217 | 0.025* | 0.5767 |
Sport College | 0.2924 | 0.7632 | 0.9291 | 0.8848 |
4.2.2 Employment Bias of Major-view.
5 Design of SUMMER
5.1 Academic Performance Representation
5.1.1 \(\boldsymbol {C}\) Matrix.
5.1.2 Representation Learning.
5.2 Data Augmentation for Label Imbalance
5.3 Prediction Model
5.3.1 Causal Convolutions.
5.3.2 Dilated Convolutions.
5.3.3 Residual Connections.
5.4 Bias-aware Optimization
5.4.1 Bias-aware Regularization.
5.4.2 Optimization.
6 Experiments and Results
6.1 Representation of Academic Performance
6.2 Prediction Results of Employment Status
6.2.1 Comparison with TCM-based SUMMER’s Variants.
Variants | Accuracy | Recall | F1-score | |
---|---|---|---|---|
TCN+Raw Data | 0.869 | 0.500 | 0.475 | |
TCN+WGAN-GP | 0.875 | 0.690 | 0.747 | |
TCN+WGAN-GP+New Loss | 0.890 | 0.786 | 0.830 |
6.2.2 Comparison with Baseline Methods.
6.2.3 Input Features.
Inputs | Accuracy | Recall | F1 |
---|---|---|---|
1 semester + demographic feature | 0.75463 | 0.64678 | 0.63418 |
2 semesters + demographic feature | 0.80287 | 0.65231 | 0.69371 |
3 semesters + demographic feature | 0.86224 | 0.66746 | 0.70124 |
4 semesters + demographic feature | 0.87731 | 0.68842 | 0.72121 |
5 semesters + demographic feature | 0.88612 | 0.71248 | 0.77452 |
6 semesters + demographic feature | 0.89000 | 0.78646 | 0.83025 |
Academic performance | 0.87313 | 0.68911 | 0.73875 |
Academic performance + demographic feature | 0.89000 | 0.78646 | 0.83025 |
6.2.4 Learning Rate.
6.2.5 Bias-based Regularization.
6.2.6 Transformation Function.
Transformation Function | Accuracy | Recall | F1-score |
---|---|---|---|
\(y=1-x\) | 0.864 | 0.751 | 0.806 |
\(y=1-x^{2}\) | 0.873 | 0.768 | 0.801 |
\(y=\frac{1}{1+e^{x}}\) | 0.870 | 0.778 | 0.813 |
Equation (9) | 0.890 | 0.786 | 0.830 |
6.3 Prediction Results of Employment Preference
Variants | Accuracy | Recall | F1-score |
---|---|---|---|
TCN+Raw Data | 0.877 | 0.687 | 0.751 |
TCN+WGAN-GP | 0.895 | 0.711 | 0.776 |
TCN+WGAN-GP+New Loss | 0.920 | 0.817 | 0.861 |
6.3.1 Input Features.
Input | Accuracy | Recall | F1 |
---|---|---|---|
1 semester + demographic feature | 0.82436 | 0.73648 | 0.74313 |
2 semesters + demographic feature | 0.83215 | 0.75371 | 0.76371 |
3 semesters + demographic feature | 0.88244 | 0.77377 | 0.79332 |
4 semesters + demographic feature | 0.89123 | 0.78121 | 0.81233 |
5 semesters + demographic feature | 0.90377 | 0.79314 | 0.83445 |
6 semesters + demographic feature | 0.92000 | 0.81701 | 0.86134 |
Academic performance | 0.89233 | 0.71091 | 0.76008 |
Academic performance + demographic feature | 0.92000 | 0.81701 | 0.86134 |
6.3.2 Learning Rate.
6.3.3 Bias-based Regularization.
6.3.4 Transformation Function.
Transformation Function | Accuracy | Recall | F1-score |
---|---|---|---|
\(y=1-x\) | 0.890 | 0.800 | 0.821 |
\(y=1-x^{2}\) | 0.901 | 0.803 | 0.833 |
\(y=\frac{1}{1+e^{x}}\) | 0.912 | 0.811 | 0.842 |
Equation (9) | 0.920 | 0.817 | 0.861 |
7 Conclusion
Acknowledgments
References
Index Terms
- SUMMER: Bias-aware Prediction of Graduate Employment Based on Educational Big Data
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