From Data to Knowledge & Action

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Contributors

Bjorn Burscher, NN

When using organizational as well as external data in order to anticipate on/or manage crisis, one thus has to derive kowledge from information in the collected data and make strategic organizational decisons based on that knowledge. The the overview below for this general process.

Data

  • Internal (operational & transactional data, customer data) vs
  • external (web, news media, social media, metadata, web archive, science databases, etc.)

Information

  • Pattern, associations, relationships among data can provide information

Knowledge

  • Information can be converted into knowledge about historical patterns and future trends

Action

  • Strategig decisions need to be made based on gained knowledge

Steps to be Taken

There are various steps that are involved in the process that leads from raw data to profoun dorganizational decisions. These steps are depicted in the model below:

Steps4dm.jpg

1.Data Integration: First of all the data are collected and integrated from all the different sources.

2.Data Selection: We may not all the data we have collected in the first step. So in this step we select only those data which we think useful for data mining.

3. Data Cleaning: The data we have collected are not clean and may contain errors, missing values, noisy or inconsistent data. So we need to apply different techniques :to get rid of such anomalies.

4. Data Transformation: The data even after cleaning are not ready for mining as we need to transform them into forms appropriate for mining. The techniques used to :accomplish this are smoothing, aggregation, normalization etc.

5. Data Mining: Now we are ready to apply data mining techniques on the data to discover the interesting patterns. Techniques like clustering and association analysis :are among the many different techniques used for data mining.

6. Pattern Evaluation and Knowledge Presentation: This step involves visualization, transformation, removing redundant patterns etc from the patterns we generated.

7. Decisions / Use of Discovered Knowledge: This step helps user to make use of the knowledge acquired to take better decisions.

Contributors

Bjorn Burscher, NN