Page 222 - Big data - Concept and application for telecommunications

5 Big data - Concept and application for telecommunications

– Big data storage

– Big data transfer
– Big data time synchronization
– Big data analysis
– Big data query
– Big data visualization
– Big data security and privacy protection

All IoT components are concerned by capabilities of the IoT for big data.
NOTE – Specific deployments may vary in terms of the location of one or more of these capabilities in the
different parts of the IoT system.

8.2 Big data collection
Big data collection capability implements the data collection operation as described in clause 7.1.1.

According to the requirements in clauses 7.2.1, 7.3.1, 7.5.1 and 7.6.1, the following abilities are provided by
the big data collection capability:
– The ability to mark the collected IoT data to indicate sufficient information related to the usage of
the collected IoT data.

NOTE 1 – Data marking with tags and semantic annotation can be seen as two examples of the IoT
data marking.
– The ability to ensure sufficient precision of the collected IoT data according to the quality required
by the usage of these collected IoT data.
– The ability to support efficient data collection in order to relieve the load of the IoT system.
NOTE 2 – As an example, when collecting IoT data from multiple devices, the usage of a data
collection scheduler, which schedules the sequence and frequency of the IoT data collection, can
relieve the load of the IoT system.

8.3 Big data pre-processing

Big data pre-processing capability implements the data pre-processing operation as described in clause 7.1.4.
According to the requirements in clauses 7.2.2, 7.3.2, 7.5.2 and 7.6.2, the following abilities are provided by
the big data pre-processing capability:
– The ability to support the data format transformation of IoT data according to pre-defined data
models.
NOTE – Missing data fields are supplemented with default values during transformation.
– The ability to support the association of time stamp and collected IoT data.
– The ability to support the semantic annotation for IoT data.
– The ability to support data quality enhancement operations, e.g., de-noising and de-duplication.

8.4 Big data analysis
Big data analysis capability implements the data analysis operation as described in clause 7.1.5.
According to the requirements in clauses 7.3.5, 7.5.5 and 7.6.5, the following abilities are provided by the big
data analysis capability:
– The ability to analyse IoT data according to user algorithms and profiles.
– The ability to provide pre-defined data analysis functions (e.g., data statistics and data mining
algorithms).

214 Network and infrastructure