3 research outputs found
The use of blocking sets in Galois geometries and in related research areas
Blocking sets play a central role in Galois geometries. Besides their intrinsic geometrical importance, the importance of blocking sets also arises from the use of blocking sets for the solution of many other geometrical problems, and problems in related research areas. This article focusses on these applications to motivate researchers to investigate blocking sets, and to motivate researchers to investigate the problems that can be solved by using blocking sets. By showing the many applications on blocking sets, we also wish to prove that researchers who improve results on blocking sets in fact open the door to improvements on the solution of many other problems
The Extended Codes of Some Linear Codes
The classical way of extending an linear code \C is to add an
overall parity-check coordinate to each codeword of the linear code \C. This
extended code, denoted by \overline{\C}(-\bone) and called the standardly
extended code of \C, is a linear code with parameters ,
where or . This is one of the two extending techniques
for linear codes in the literature. The standardly extended codes of some
families of binary linear codes have been studied to some extent. However, not
much is known about the standardly extended codes of nonbinary codes. For
example, the minimum distances of the standardly extended codes of the
nonbinary Hamming codes remain open for over 70 years. The first objective of
this paper is to introduce the nonstandardly extended codes of a linear code
and develop some general theory for this type of extended linear codes. The
second objective is to study this type of extended codes of a number of
families of linear codes, including cyclic codes and nonbinary Hamming codes.
Four families of distance-optimal or dimension-optimal linear codes are
obtained with this extending technique. The parameters of certain extended
codes of many families of linear codes are settled in this paper
Predicting companies stock price direction by using sentiment analysis of news articles
This paper summarizes our experience teaching
several courses at Metropolitan College of Boston University Computer Science department over five years. A number of innovative teaching techniques are presented in this paper. We
specifically address the role of a project archive, when designing a course. This research paper explores survey results from every running of courses, from 2014 to 2019. During each class, students participated in two distinct surveys: first, dealing with key learning outcomes, and, second, with teaching techniques used. This paper makes several practical recommendations based on the analysis of collected data. The research validates the value of a sound repository of technical term projects and the role such repository plays in effective teaching and learning of computer science courses.Published versio