ARIMA
Time series model
ARIMA stands for autoregressive integrated moving average, a statistical model used for analyzing and forecasting time series data.
It combines three components: autoregression, differencing to achieve stationarity, and moving average smoothing.
The analyst built an ARIMA model to predict quarterly sales.
Widely used in economics, finance, and weather forecasting. (Capitalized Arima is a city in Trinidad.)
Combined into a whole
- differencingComputing sequential differences
- lagPeriod of falling behind
- autocorrelationSignal's similarity to itself delayed
- white noiseConstant random sound
parameters · estimation · likelihood · coefficients · variance · random walk
Chronologically ordered observations
- predictionForecast of coming events
- forecastPrediction of future conditions
- smoothingReducing irregularities systematically
- trendDirection of change
seasonality · projection · extrapolation · sales forecasting · stock prediction · weather modeling · economic outlook · horizon
Eighteenth alphabet symbol
- PythonLarge nonvenomous squeezer
- ExcelMicrosoft's data-crunching application
- SPSSSocial science analytics program
- SASThree-letter acronym, multiple meanings
MATLAB · pandas · implementation · library · function · output · summary · plot
Financial institution identifier
- diagnosticTest to identify problems
- overfittingExcess adaptation to samples
- parsimonyExcessive frugality with resources
- seasonalRecurring at fixed intervals
exogenous · specification · identification · validation · cross-validation · training set · hyperparameter
integrated
Combined into a whole
- differencingComputing sequential differences
- lagPeriod of falling behind
- autocorrelationSignal's similarity to itself delayed
white noise · parameters · estimation · likelihood · coefficients · variance · random walk
time series
Chronologically ordered observations
- predictionForecast of coming events
- forecastPrediction of future conditions
- smoothingReducing irregularities systematically
trend · seasonality · projection · extrapolation · sales forecasting · stock prediction · weather modeling · economic outlook · horizon · residuals
R
Eighteenth alphabet symbol
- PythonLarge nonvenomous squeezer
- ExcelMicrosoft's data-crunching application
- SPSSSocial science analytics program
SAS · MATLAB · pandas · implementation · library · function · output · summary · plot
BIC
Financial institution identifier
- diagnosticTest to identify problems
- overfittingExcess adaptation to samples
- parsimonyExcessive frugality with resources
seasonal · exogenous · specification · identification · validation · cross-validation · training set · hyperparameter
- forecastingforecast, prediction, prognosis, outlook, estimate
- ML modelsneural network, neural networks, decision tree, decision trees, linear regression
- Statistical Modelslinear regression, predictive model, neural network, decision tree, growth model
- Time Seriestime series, trend, forecast, forecasting, seasonality
- stochastic processesrandom variable, random variables, martingale, white noise, irreducibility
- climate modelsclimate model, forecast model, weather model, ensemble, grid cell
- arithmetic averageSum divided by count