1. https://cloud.google.com/bigquery/docs/dataset-gsod. https://cloud.google.com/bigquery/docs/dataset-gsod.
2. Haar wavelet. http://en.wikipedia.org/wiki/Haar_wavelet. Haar wavelet. http://en.wikipedia.org/wiki/Haar_wavelet.
3. Apache HBase. http://hbase.apache.org/. Apache HBase. http://hbase.apache.org/.
4. https://cloud.google.com/bigquery/docs/dataset-mlab. https://cloud.google.com/bigquery/docs/dataset-mlab.
5. OpenTSDB. http://opentsdb.net/. OpenTSDB. http://opentsdb.net/.