Colloquiam: Miguel Botto Tobar's personal collection

Encapsulation Component and Its Incidence into Scientific Software Performance

Miguel Botto Tobar — Thu, 20 Jan 2022 14:55:02 +0100

Performance is considered an important feature rather than the application of programming techniques for better software design in most scientific software developers. Therefore, the problem arises if the software is developed without considering a specific paradigm or some programming technique when performing maintenance; tasks related to this activity are complicated, since almost no one would understand the source code. The goal of this research is to verify the performance of the software with or without an encapsulation component. An ex-post-facto experimental methodology has been implemented, carrying out a descriptive analysis of the data and then concluding by verifying the hypothesis by means of a robust test. This work was carried out by running algorithms written in the programming language Java by using three data groups in different conditions to analyze their behavior. Results show is that the application of the encapsulation component of the object-oriented paradigm does affect the execution of the scientific software performance.

Sorting Algorithms and Their Execution Times an Empirical Evaluation

Miguel Botto Tobar — Thu, 20 Jan 2022 14:52:02 +0100

One of the main topics in computer science is how to perform data classification without requiring plenty of resources and time. The sorting algorithms Quicksort, Mergesort, Timsort, Heapsort, Bubblesort, Insertion Sort, Selection Sort, Tree Sort, Shell Sort, Radix Sort, Counting Sort, are the most recognized and used. The existence of different sorting algorithm options led us to ask: What is the algorithm that us better execution times? Under this context, it was necessary to understand the various sorting algorithms in C and Python programming language to evaluate them and determine which one has the shortest execution time. We implement algorithms that help create four types of integer arrays (random, almost ordered, inverted, and few unique). We implement eleven classification algorithms to record each execution time, using different elements and iterations to verify the accuracy. We carry out the research using the integrated development environments Dev-C++ 5.11 and Sublime Text 3. The products allow us to identify different situations in which each algorithm shows better execution times.

Is stack overflow in portuguese attractive for brazilian users?

Miguel Botto Tobar — Thu, 20 Jan 2022 14:47:02 +0100

Stack Overflow (SO) is the reference for asking and answering programming-related questions. In early 2014 Stack Overflow em Português (SO-PT) was announced with the goal to reach developers that are not sufficiently proficient in the English language to fully participate in SO. Almost four years later we study how the simultaneous availability of SO and SO-PT impacted Brazilian software developers. A priori, the impact could have been either empowering or impeding. To address this question, we combine interviews, analysis of trace data from SO and SO-PT and a survey of 229 Brazilian software developers. Our results indicate that the developers recognize availability of the information, response speed and accessibility as strong points of SO, and lower barrier to entry and presence of Brazilian-specific information as strong points of SO-PT. In large, SO remains more popular than SO-PT, and SO-PT is not perceived as a viable alternative to SO. of barriers to SO participation Ford et al. [12] identified through interviews and survey such barriers as “Nothing Left to Answer' and “Fear of Negative Feedback'. Importance of English as a foreign language when training future software developers has been stressed by Bakanova [5]. She argued that English has influenced modern programming languages far beyond the choice of specific words as