Technology investigation on time series classification and prediction.
Yuerong Tong1, Jingyi Liu1, Lina Yu1
1Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China.
Peerj. Computer Science
|May 31, 2022
Summary
This study analyzes time series classification and prediction algorithms, reviewing key methods like supervised learning and neural networks. It highlights research trends and suggests future directions in time series analysis.
Area of Science:
- Data Science
- Machine Learning
- Statistics
Background:
- Time series data is crucial across scientific fields.
- Recent research (2017-2021) heavily focuses on time series classification and prediction.
- A comprehensive review of 120,000 publications indicates these two areas dominate time series research.
Purpose of the Study:
- To analyze the technical development of time series classification and prediction algorithms.
- To provide a reference base for researchers by examining 87 high-impact publications.
- To identify current trends and potential future research avenues in time series analysis.
Main Methods:
- Systematic review of 87 highly relevant and cited literature on time series analysis.
- Categorization of time series classification into supervised, semi-supervised, and early classification methods.
- Exploration of time series prediction techniques, from classical statistics to deep learning and transfer learning.
Main Results:
- Time series classification research is advancing with supervised, semi-supervised, and early classification approaches.
- Time series prediction encompasses a range of methods, including statistical, neural network, fuzzy modeling, and transfer learning.
- The analysis identifies key evolutionary paths for both classification and prediction algorithms.
Conclusions:
- The study offers insights into the current state of time series classification and prediction.
- It suggests future research directions, including interpretability and online learning in time series analysis.
- This work serves as a valuable resource for researchers in the field of time series.
Related Concept Videos
Steps in Outbreak Investigation
221
In the ever-evolving field of public health, statistical analysis serves as a cornerstone for understanding and managing disease outbreaks. By leveraging various statistical tools, health professionals can predict potential outbreaks, analyze ongoing situations, and devise effective responses to mitigate impact. For that to happen, there are a few possible stages of the analysis:
221
Time-Series Graph
4.6K
A time-series graph is a line graph with repeated measurements taken at successive intervals of time. It is also called a time series chart. To construct a time-series graph, one must look at both pieces of a paired data set. The horizontal axis is used to plot the time increments, and the vertical axis is used to plot the values of the variable that one is measuring. By using the axes in this way, each point on the graph will correspond to time and a measured quantity. The points on the graph...
4.6K
Classification of Signals
936
In signal processing, signals are classified based on various characteristics: continuous-time versus discrete-time, periodic versus aperiodic, analog versus digital, and causal versus noncausal. Each category highlights distinct properties crucial for understanding and manipulating signals.
A continuous-time signal holds a value at every instant in time, representing information seamlessly. In contrast, a discrete-time signal holds values only at specific moments, often denoted as x(n), where...
A continuous-time signal holds a value at every instant in time, representing information seamlessly. In contrast, a discrete-time signal holds values only at specific moments, often denoted as x(n), where...
936
Prediction Intervals
2.4K
The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
2.4K
Classification of Systems-I
332
Linearity is a system property characterized by a direct input-output relationship, combining homogeneity and additivity.
Homogeneity dictates that if an input x(t) is multiplied by a constant c, the output y(t) is multiplied by the same constant. Mathematically, this is expressed as:
Homogeneity dictates that if an input x(t) is multiplied by a constant c, the output y(t) is multiplied by the same constant. Mathematically, this is expressed as:
332
Introduction To Survival Analysis
412
Survival analysis is a statistical method used to study time-to-event data, where the "event" might represent outcomes like death, disease relapse, system failure, or recovery. A unique feature of survival data is censoring, which occurs when the event of interest has not been observed for some individuals during the study period. This requires specialized techniques to handle incomplete data effectively.
The primary goal of survival analysis is to estimate survival time—the time...
The primary goal of survival analysis is to estimate survival time—the time...
412


