기타Synthetic data

LinkedIn Job Postings (2023 2024) Dataset

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During synthetic data generation, duplication may occur due to the close resemblance to the original dataset, a common issue in such processes. To minimize this, consider generating more data than initially required.

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  • Labeling type: formatted_experience_level
  • Data Format: Tabular

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About Dataset

1) Data Introduction

• The LinkedIn Job Postings (2023 - 2024) Dataset contains job posting information collected from LinkedIn. It is structured to support analysis of labor market trends and hiring dynamics.

2) Data Utilization

(1) Characteristics of the LinkedIn Job Postings Dataset: • The dataset includes time-related information (e.g., posting date, expiration date, number of views), enabling applications such as time-series analysis, salary prediction, and industry-level demand analysis. • With clearly defined features such as job type, employment format, location, and experience level, the dataset is well-suited for analyzing corporate talent demands and sector-specific hiring patterns. (2) Applications of the LinkedIn Job Postings Dataset: • Hiring trend analysis and job matching AI model development: The dataset can be used to develop NLP-based job classifiers, salary predictors, and skill-experience matching systems. • Corporate talent strategy analysis: It can also be used to build business intelligence (BI) tools that analyze employment strategies by evaluating factors such as job demand, benefits offerings, and remote work availability.

Meta Data

DomainetcZoodata formatsTabular
Zoodata volume1000 itemsRegistration date2025.05.20
Zoodata typeSynthetic dataExistence of labelingExist
Labeling typeformatted_experience_levelLabeling formatsjson

Normal

Performance 1
Excellent

Outstanding

Performance 2
100

Data Samples

Sample Data

Utility

Downstream Classification (▲)Entropy (▲)MMD (▼)2D Correlation Similarity (▼)One Class Classification (▼)Duplication Rate (▼)
Total000000
SuitabilityOKOKOKOKOKOK

The higher the value, the better (▲)

Model Performance

Downstream classification accuracy is an indicator used to evaluate the usefulness of synthetic data. It measures whether synthetic data performs similarly to real data. The method involves training the same model separately on real data and synthetic data, and then comparing the accuracies of the two models. Interpretation: A high accuracy rate means that the model trained on synthetic data performs similarly to the one trained on real data, indicating that the synthetic data is of high quality and well represents the real data.

The closer the value is to 0 or 1, or the lower the number, the better (▼)

Quality

MMD (Maximum Mean Discrepancy) is a metric used to assess the similarity between two probability distributions. It is commonly used to compare generated data with real data. High MMD score: A score above 0.05 indicates that the two distributions may differ. Low MMD score: Indicates that the generated data is similar to the real data. A score close to 0 is preferable, and a score below 0.01 suggests that the two data distributions are nearly indistinguishable.

Quality

2D Relationship Similarity measures the similarity in correlation structures between two datasets by comparing the correlation coefficients of columns in the original and generated data. High value (0.05 or above): Suggests differences in correlation structures, indicating the generated data may differ from the original. Low value: Indicates that the correlation structure of the generated data is similar to the original data. For instance, a 2D Relationship Similarity below 0.01 suggests the datasets are very similar.

Duplication Rate

Duplication Rate represents the proportion of identical or nearly identical items within a dataset. It is calculated by dividing the number of duplicate items by the total number of items. High Duplication Rate: Indicates lower data diversity and potential quality issues, which can reduce the reliability of analysis and models. Low Duplication Rate: Suggests higher data diversity and better quality.


Privacy

Identification Risk (▼)Linkage Risk (▼)Inference Risk (▼)
(Adjust by subtracting 0.5)
Total000
SuitabilityOKOKOK

The closer to zero or the lower the value, the better (▼)

Structural Similarity

Identification risk assesses how well synthetic data protects the privacy of the original data. It measures the likelihood that synthetic data can match records from the original data, thereby evaluating the potential for identifying specific individuals. Interpretation: A value closer to 0 indicates that the synthetic data is effectively protecting personal information. The level of risk considered safe can vary depending on the nature and sensitivity of the information contained in the data.

Perceptual Similarity

Linkage risk assesses the risk of inferring sensitive information from the original data using synthetic data. It measures the proportion of quasi-identifier values in the synthetic data that match those in the original data when an attacker knows quasi-identifier information from the original data. High Duplication Rate: Indicates lower data diversity and potential quality issues, which can reduce the reliability of analysis and models. Interpretation: A lower risk indicates that the data is safer, meaning there is a reduced likelihood of inferring sensitive information.

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