18 citations · 23 across the 5 of their papers we have counts for
4 papers · 1 filter
Sync Without Guesswork: Incomplete Time Series Alignment
Ding Jia, Jingyu Zhu, Yu Sun +4
Multivariate time series alignment is critical for ensuring coherent analysis across variables, but missing values and timestamp inconsistencies make this task highly challenging.…
A Survey on Sampling and Profiling over Big Data (Technical Report)
Zhicheng Liu, Aoqian Zhang
Due to the development of internet technology and computer science, data is exploding at an exponential rate. Big data brings us new opportunities and challenges. On the one hand,…
Learning Individual Models for Imputation (Technical Report)
Aoqian Zhang, Shaoxu Song, Yu Sun +1
Missing numerical values are prevalent, e.g., owing to unreliable sensor reading, collection and transmission among heterogeneous sources. Unlike categorized data imputation over a…
Time Series Data Cleaning: From Anomaly Detection to Anomaly Repairing (Technical Report)
Aoqian Zhang, Shaoxu Song, Jianmin Wang +1
Errors are prevalent in time series data, such as GPS trajectories or sensor readings. Existing methods focus more on anomaly detection but not on repairing the detected anomalies.…