An important problem in the field of data stream analysis is change detection and monitoring. In many cases, the data stream can show changes over time which can be used for understanding the nature of several applications. We discuss the concept of velocity density estimation, a technique used to understand, visualize and determine trends in the evolution of fast data streams. We show how to u...

Fast Data is a new Big Data computing paradigm that ensures requirements such as Real-Time processing of continuous data stream, storage at high rates and low latency with no data loses. In this work we propose a "Fast Data" architecture for a specific kind of software application in which input data arrive very fast and the results for each processed data have to match such input rates. We app...

Novel K-promoted bimetallic Fe- and In-based catalysts on a Ce? ZrO2 support were prepared tested for higher alcohol synthesis from CO2 hydrogen. The FeIn/Ce?ZrO2 precursors with different Fe contents characterized in detail, well-dispersed Fe2O3 In2O3 phases oxygen vacancies observed. continuous setup at extended times stream (up to 100 h) 300 °C, 10 MPa, gas hourly space velocity of 4500 mL g...

Over 4,000 exoplanets have been identified and thousands of candidates are to be confirmed. The relations between the characteristics these planetary systems kinematics, Galactic components, ages their host stars yet well explored. Aiming addressing questions, we conduct a research project, dubbed as PAST (Planets Across Space Time). To do this, one key steps is accurately characterize planet s...

Many IoT applications and services such as smart parking traffic control contain a network of different analytical components, which are composed in the form workflow to make better decisions. These workflows also known stream workflows. The focus existing research works is on streaming operator graph, differs from application it involves heterogeneity, multiple data sources outputs. Considerin...

The need for accurate and reliable navigation techniques for micro air vehicles plays an important part in enabling autonomous operation. Traditional navigation systems typically rely on periodic GPS updates and provide little benefit when operating indoors or in other similarly shielded environments. Moreover, direct integration of the onboard inertial measurement unit (IMU) data stream often ...