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Scalable High efficiency Video Coding (SHVC) is the scalable extension of the latest video coding standard High Efficiency Video Coding (HEVC). One of the key novelties introduced by SHVC is that it enables hybrid codec scalability. This basically means that the video layers can be encoded with different video standards providing backward compatibility between codecs. In this paper, we propose a software...
High Efficiency Video Coding (HEVC) is one of the latest released video standards and offers up to 40% bitrate savings when compared to the widespread H.264/AVC standard, at the cost of a substantial complexity growth. Constraining the complexity of HEVC encoding is a challenging task for embedded applications based on a software encoder. In the last few years, the Internet of Thingss (IoTs) has become...
Internet of things is a latest technology which has good number of benefits to its users. It's an emerging technology where we connect daily objects to the internet for sending and receiving data. For an example home automation system, various durable goods, vehicles (cars and trucks) sensors. We can combine all these with internet. We can send and receive information as per user's requirement. IoT...
Source code comments are valuable to keep developers' explanations of code fragments. Proper comments help code readers understand the source code quickly and precisely. However, developers sometimes delete valuable comments since they do not know about the readers' knowledge and think the written comments are redundant. This paper describes a study of lost comments based on edit operation histories...
Despite being popular end-user tools, spreadsheets suffer from the vulnerability of error-proneness. In software engineering, testing has been proposed as a way to address errors. It is important therefore to know whether spreadsheet users also test, or how do they test and to what extent, especially since most spreadsheet users do not have the training, or experience, of software engineering principles...
GitHub, one of the most popular social coding platforms, is the platform of reference when mining Open Source repositories to learn from past experiences. In the last years, a number of research papers have been published reporting findings based on data mined from GitHub. As the community continues to deepen in its understanding of software engineering thanks to the analysis performed on this platform,...
Exception handling is a technique that addresses exceptional conditions in applications, allowing the normal flow of execution to continue in the event of an exception and/or to report on such events. Although exception handling techniques, features and bad coding practices have been discussed both in developer communities and in the literature, there is a marked lack of empirical evidence on how...
Software developers use issues as a means to describe a range of activities to be undertaken on a software system, including features to be added and defects that require fixing. When creating issues, software developers expend manual effort to specify relationships between issues, such as one issue blocking another or one issue being a sub-task of another. In particular, developers use a variety...
Context: To be more flexible, companies call more and more for an independence between development tools and processes. To enable this form of decoupling we need to understand the interrelation of processes and development tools. However, knowledge about that field is rare.Goal: The goal of this study is to better understand how technologies in use might impact the processes and team interaction.Method:...
Line, a kind of Instant Messenger, has become one of the popular communication tools for modern people. “Ignoring read messages” which means the recipients keep silent after they read the messages sent by the senders have caused poor communication between romantic lovers and further led the devastation of their romantic relationships. This study forms a unique framework representing the factors affecting...
This paper investigates the performance of the BCH encoder and decoder for different error-correcting capabilities. The focus is on BCH codes of length 255. The motivation for this research is a project where data symbols of this length are transmitted over an error-prone wireless channel. The paper presents a mathematical introduction into encoding for cyclic codes and decoding of the BCH code. The...
This paper presents improvements upon a previous paper detailing an Android mobile phone application demonstrating methods for implementing or assisting traditional speech therapy techniques using mobile devices. [1] After development, the software was implemented on a Galaxy Tab, an Android tablet that, at approximately $100 per tablet, is quite affordable. The techniques are principally aimed at...
Big data workflows often require the assembly and exchange of complex, multi-element datasets. For example, in biomedical applications, the input to an analytic pipeline can be a dataset consisting thousands of images and genome sequences assembled from diverse repositories, requiring a description of the contents of the dataset in a concise and unambiguous form. Typical approaches to creating datasets...
Constructing a timetable is a widespread problem. Computers can be employed to solve this problem faster and to produce better solutions. Software solutions for this problem already exist and are used by some universities. However, some universities have complex types of constraints that make it hard to use most of the available software solutions. This paper introduces a software solution for the...
We report a semiquantitative readout technique using structured Quick Response (QR) codes partially patterned with colorimetric assay. This allows error-corrected readout at point-of-care (POC) the assay using mobile devices while transparently enabling remote tabulation of population-level statistics through analysis of web traffic.
The train control center is an indispensable component for the safe operation of high speed railways. This paper analyzes the software function and performance for the train control center subsystem in Chinese Train Control System level 3. It focuses on the editing of active balise telegram, based on the theory of timed automata and hierarchical modeling. First, we analysis the process and form a...
In the HEVC standard, motion estimation is one of the most complex task of the video encoder, requiring a great percentage of the encoding time mainly due to (a) a large set of Coding Tree Unit partitioning modes, (b) the presence of multiple reference frames, and (c) the varying size of Coding Units in comparison with its predecessor H264/AVC. In addition, HEVC adopts Variable Block Size Motion Estimation...
Safety and security in software coding is becoming increasingly important in mission-critical systems due to various emerging threats and to avoid potential disastrous consequences. These issues can be significantly reduced by software designs and implementations that adequately protect systems. This abstract describes coding methodologies in the Ada 95/2005 programming language for complex embedded...
Grounded theory is an approach that can be used to analyse qualitative data. It is a systematic approach for data collection, handling and analysis. The objective of this paper is to present adapted grounded theory approach as data analysis strategy to identify value-based factors in software development. The grounded theory procedure started with data extraction and initial coding, memo writing and...
Data-flow analyses are used as part of many software engineering tasks: they are the foundations of program understanding, refactorings and optimized code generation. Similar to general-purpose languages (GPLs), state-of-the-art domain-specific languages (DSLs) also require sophisticated data-flow analyses. However, as a consequence of the different economies of DSL development and their typically...
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