13HANDLING TIME SERIES AND TEXT DATA
A time series is a dataset indexed by time, usually at regular time intervals. Here are some familiar examples:
- Stock market data consisting of the price of a given equity on a daily basis, or even hourly, and so on
- Weather data, daily or in even finer granularity
- Demographic data, such as the number of births, say, monthly or even yearly, to plan for school capacity
- Electrocardiogram data measuring electrical activity in the heart at regular time intervals
A special type of time series is that of written or spoken speech. Here “time” is word positioning. If, say, we are working at the sentence level, and ...
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