Dear Mohamed, the most basic, and yet fundamental, difference between classical data mining and big-data is that in data science n = all. That means, we gather as much and as many data, .i.e. information as possible, without worrying about gaps and the like. The key factor is the further, secondary or tertiary use of the data collected. Not the first use we can make of them.

Dear Carlos,

Thank you for your answer.

Thank you for your answer.

I need references about these issues if they exist.

Big data call for a new way of thinking; why fractal geometry is the right paradigm for big data analytics:

https://www.researchgate.net/publication/276276557_Why_Is_Fractal_Geometry_the_Right_Paradigm_for_Big_Data_Analytics

Research Why Is Fractal Geometry the Right Paradigm for Big Data Analytics?

Thank you for this answer.

1. Van Poucke S, Zhang Z, Schmitz M, Vukicevic M, Laenen M Vander, Celi LA, et al. Scalable predictive analysis in critically ill patients using a visual open data analysis platform. PLoS One [Internet]. 2016;11(1). Available from: http://dx.doi.org/10.1371/ journal.pone.0145791

2. Van Poucke S, Thomeer M, Heath J, Vukicevic M. Randomized Controlled Trials, the (G)old Standard? From Clinical Intelligence to Prescriptive Analytics. Viewpoint. JMIR Med Informatics [Internet]. 2016;18:1–11. Available from: http://www.jmir.org/2016/7/ e185/

3. Poucke S Van, Thomeer M, Hadzic A, Van Poucke S, Thomeer M, Hadzic A. 2015, Big Data in Healthcare: for Whom the Bell Tolls? Crit Care [Internet]. 2015;19(1):2013–4. Available from: http://ccforum.com/content/19/ 1/171

4. Van Poucke S, Gayle AA, Vukicevic M. Secondary Analysis of Electronic Health Records. Ann Transl Med. 2017; Available from: https://www. researchgate.net/publication/ 315640899_Secondary_analysis_ of_electronic_health_records_ in_critical_care_medicine

Following are the challenges related to Big Data

Noisy and Incomplete Data

Distributed Data

Complex Data

Performance

Incorporation of Background Knowledge

Data Visualization

Data Privacy and Security

Read here more on Data Mining - https://data-flair.training/blogs/category/data-mining/