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Often time series possess a seasonal component that repeats every s observations. For monthly observations s= 12 (12 in 1 year), for quarterly observations s= 4 (4 in 1 year).  In order to deal with seasonality, ARIMA processes have been generalized: SARIMA models (Seasonal Autoregressive Integrated Moving Average Model) have then been formulated. Φ (B) ∆d Xt = θ (B) αt where αt is such that sΦ (Bs) ∆Ds αt = sΘ (Bs) at hence Φ (B)s Φ (Bs) ∆Ds ∆d Xt = θ (B)s Θ (Bs) αt and we write Xt ∼ ARIMA (p, d, q) × (P, D, Q)s. The idea is that SARIMA models are ARIMA (p, d, q) models whose residuals αt are ARIMA (P, D, […]

Web design and development are living disciplines in constant evolution. When creating a website, it must be attractive and fully optimized and adapted to new technologies. And for this to be fulfilled one hundred percent is unavoidable to be aware of the latest trends. Because, as in fashion, in web design and development we also follow trends. So, without further ado, from Somos Sinapsis we will review what we will find this year: WEB DEVELOPMENT Responsive In web development, last year responsive web pages were strong and this year they will continue to do so. It is inevitable given the dizzying growth that continues to show the display on mobile devices. Meteor In web development, last year NodeJS had a […]

Data Science is an interdisciplinary field; it is the set of methods, techniques and theories to extract knowledge or a better understanding of the information in data coming from multiple sources, whether structured or unstructured. And focus their results in various fields: marketing and advertising, improvement of production processes, public services, scientific and medical research, business intelligence, etc. This is first a work of Data Mining, and Data Analytics, which uses Big Data technology to cover a large amount of information and guide it to real applications such as those mentioned above. In fact, Data Science is a continuation of some fields of data analysis such as statistics, Data Mining itself, automatic learning or predictive analytics.   DATA SCIENCE PRACTICAL […]

In ecommerce, the user experience is the main thing. If the user does not have a good experience browsing your website, he will simply abandon it and go to the competition. To avoid it is basic its good operation and this depends on a good ecommerce development. According to recent studies, 85% of users abandon the buying process by already having items in the shopping cart, if they perceive that the store is difficult to navigate. Therefore, take care of ecommerce development, it is vital.   KEY TO TAKING INTO ACCOUNT IN ECOMMERCE DEVELOPMENT Somos Sinapsis, experts in ecommerce development in Barcelona, ​​they advise us on the aspects that we must watch as far as development and maintenance ecommerce. We […]

With the continued rise in the price of electricity and an environment that is increasingly affected by our actions, energy efficiency has never mattered so much. We can also contribute, for example when buying an appliance. These carry the well-known energetic label, a very important sticker that indicates the level of energy efficiency of the apparatus. All the appliances take it from the TV to the vacuum cleaner robot, from the refrigerator to the ironing center. And, the problem is that many times, out of care, distrust, or ignorance, we do not give it the importance it deserves.   ENERGETIC EFFICIENCY AND ENERGETIC LABEL The energy label indicates the energy consumption (and water, if any) of the appliance. It is […]

What are the trends in energy saving 2017? What expect market analysts, experts, the media foresee? And what do the latest technological innovation projects tell us in the energy sector? Except for some occasional delays, it is quite clear that climate change is a fact and that establishing the right strategies in energy efficiency will not only help our pockets, but also take a step forward to solve the problem. And for this we must be informed. Let’s get acquainted with the main trends of energy saving 2017:   INTELLIGENT ENERGY STORAGE The fall in the price of batteries makes us think that intelligent energy storage will continue to rise and will be one of the main trends in energy […]