Semantic Pill 19

Semantic Pill 19



  • Are we entering into a real “Big Science” or are we as ever striving hard pushing the frontier of the unknown? Data Driven Discovery talks about a digital copy of the universe encrypted, (see LSST, Large Synoptic Survey Telescope in previous pills):


“The data volumes we [will get] out of LSST are so large that the limitation on our ability to do science isn’t the ability to collect the data, it’s the ability to understand the systematic uncertainties in the data,” said Andrew Connolly, an astronomer at the University of Washington.


  • Non Linear System Identification deals with identifying the different types of real life systems under study namely industrial processes, control systems, economy, life sciences, medicine social systems and networks, etc, because most of them are nonlinear being linearity a form of idealization in order to study them under the laws and tools of math and logic. This article goes a little ahead idealizing data itself affirming: Finding the unexpected in a higher-dimensional space is impossible using the human brain.” We recommend to deep a little about the four main types of NLS: 1) Volterra series models, 2) block structured models, 3) neural network models, and 4) NARMAX models;


“The figure that illustrate this pill shows 4 types of equilibrium you should distinguish in order to understand Big Data better because one usual approach is to describe the solutions globally (via nullclines). What happens around an equilibrium point remains a mystery so far. Here we propose to discuss this problem. The main idea is to approximate a nonlinear system by a linear one (around the equilibrium point). Of course, we do hope that the behavior of the solutions of the linear system will be the same as the nonlinear one. This is the case most of the time (not all the time!).”


  • Open Data (see the list of over 200 local, regional and national open data catalogues) is a global movement and semantically a universal idea in formation. From its very beginning, at the dawn of our civilization, data was closely related to any type of asset and with the nature of a “capital” by itself (see Merton Thesis) and its “opening” will go head to head parallel to the development of our societies. For this reason what really crucial is the Web contribution to this opening (see Datacatalogs);
  • Finally PaaS, Platform as a Service, is one of the three pillars of Cloud Computing Services that includes SaaS, Software as a Service, IaaS and Infrastructure as a Service. Users of this service may create, control and set their own software under the contracted platform. Remember that PaaS has not too much sense alone but within an almost enforced trilogy [PaaS, SaaS, IaaS];


KRIT algorithm, Monfort University (UK)


 Strange Attractor Visualization, from Chaoscope