Study
Understand, Connect, Apply
Course paths, review material, and focused notes.
English study
Vocabulary Notes
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Vocabulary Reader
Open the corrected bilingual notes online or use the printable PDF.
Open vocabulary readerDirection 01
Computer and Data Technology
From core principles to data processing and implementation.
01 · Java
Object-oriented development
Classes, collections, exceptions, file I/O, and modular design.
02 · Python
Data analysis and ML
Cleaning, features, classification, and evaluation.
03 · Hadoop
Distributed processing
HDFS, MapReduce, Hive, and HiveQL.
04 · Foundations
Core computer science
Data structures, computer organization, operating systems, and networks.
Direction 02
Mathematics and Statistics
Assumptions, objectives, constraints, and limits.
01 · Inference
Multivariate testing
Mean vectors, covariance, and multivariate significance tests.
02 · Classification
Clustering and discrimination
Hierarchical clustering, K-means, discrimination, and standardization.
03 · Reduction
PCA and factor analysis
Variance, loadings, scores, rotation, and interpretation.
04 · Optimization
Operations research
Routing, evolutionary methods, simulated annealing, and tradeoffs.
Direction 03
Special Topics
Audio signal processing
Sampling, encoding, STFT, spectral features, SNR, and quality.
Engineering modeling
Equivalent properties, laminate theory, thermal mismatch, FEM, and sensitivity.
Model evaluation
Training versus testing, description versus inference, and result limits.
Connections
Between Subjects
Statistics explains data, optimization guides choices, and computer systems make methods repeatable.