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Sentiment Analysis (SA) in Software Engineering (SE) texts suffers from low accuracies primarily due to the lack of an effective dictionary. The use of a domain-specific dictionary can improve the accuracy of SA in a particular domain. Building a domain dictionary is not a trivial task. The performance of lexical SA also varies based on the method applied to develop the dictionary. This paper includes...
The design of a data network based on polymer optical fibers (POF) for aircraft applications involves safety-critical risks due to the unknown functional and performance requirements for the reliability and fail safe operations of the physical layer of the POF network. The physical layer of a POF network consists of entirely different components compared to the existing silica fiber-based physical...
This paper proposes an algorithm that uses predefined weights to create broadcast routes for a WirelessHART network. The network topology is represented by a graph, and the algorithm uses information of the devices present in the network to build the broadcast graph. At each iteration of the algorithm, a device is selected and then added to the broadcast solution graph. A cost function determines...
Reliability testing has become extremely important in modern electronics as the soft error rate has been increasing due to technology scaling. The testing must be controllable, generic, done before deployment, cheap, and fast. Even though fault injection is often the most appropriate solution considering these requirements, it is very time-consuming. This work proposes a hybrid fault injection framework...
Considering the increase in life expectancy in several countries, including Brazil, and that the average age of digital game players is 31 years, studies and the development of games for adults and senior people as their target audience become necessary. The objective of this paper is to provide the analysis of the impact of the use of Augmented Reality in games with adult users above 45 years. The...
Phase change memory is a promising alternative to conventional memories such as DRAM due to its density and non-volatility. Unfortunately, reliability is still a challenge as limited write endurance, exacerbated by process variation, leads to increasing numbers of stuck-at faults over the memory's lifetime. Error-correcting Pointers (ECP) is a popular proposal to mitigate stuck-at faults by recording...
Software defined networking (SDN) setups in general assume a perfect control channel between network devices and the centralized controller. Whilst this may be the case in certain controlled contexts such as data centers, when moving to wide area networks, this assumption does not necessarily hold true anymore. Therefore, there is the need to evaluate the impact of unreliable control plane behavior...
Context/Background: To achieve high software quality, particularly in the context of agile software development, organizations need tools to continuously analyze software quality. Several quality management (QM) tools have been developed in recent years. However, there is a lack of evidence regarding the quality of QM tools, standardized definitions of such quality, and reliable instruments for measuring...
In this paper we introduce a novel error resilient memory architecture potentially applicable to a large range of memory technologies. In contrast with state of the art memory error correction schemes, which rely on (extended Hamming) Error Correcting Codes (ECC), we make use of Low Density Parity Check (LDPC) codes due to their close to the Shannon performance limit error correction capabilities...
Thyroid nodules are common findings and thyroid cancer is projected to be one of the leading causes of cancer in women. The EHR includes the necessary data needed to connect clinical research with patient outcomes. The objective for this project was to develop and validate a usable informatics tool for clinicians and researchers to record, analyze, and be able to manipulate the clinical and research...
Electromigration (EM) is a key reliability concern in chip power/ ground (p/g) grids, which has been exacerbated by the high current levels and narrow metal lines in modern grids. EM checking is expensive due to the large sizes of modern p/g grids and is also inherently difficult due to the complex nature of the EM phenomenon. Traditional EM checking, based on empirical models, cannot capture the...
Failure location and mechanism analysis about a microsystem fault is presented in this work. The fault phenomenon of abnormal low output power amplitude appears only at low temperature during thermal cycle test. A series of analysis including internal fault location and replacing parts for validation help to find the fault origin: a line winding inductor. The failure mechanism of the failed inductor...
Goal. To create a mathematical tool for assessing the quality of a complex system likely availability (or failure) in the presence of interrelation in the components operation. The tool is different from the Markov's chain and other analogs. Tasks. To introduce a binomial distribution as the sum of the probabilities of ordered subsets of the numbers of successful tests. Introduction to probability...
In the next decades, hundreds of autonomous ships (AS) and Conventional ships (CS) will cross the Detroit of Gibraltar. For their autonomous operation, and remote control, these ships need to communicate with each other, with the vessel traffic system (VTS), with the port state control (PSC) and with the shore control centre (SCC). For a sustainable maritime industry, the biggest challenge will be...
Anomaly-based Network Intrusion Detection Systems (NIDSs) are a common security defense for modern networks. The success of their operation depends upon vast quantities of training data. However, one major limitation is the inability of NIDS to be reliably trained using imbalanced datasets. Network observations are naturally imbalanced, yet without substantial data pre-processing, NIDS accuracy can...
A novel composite approach through integration of variational optical flow and surface splines is presented to obtain sub-pixel accurate dense disparity map for remotely sensed stereo image pair. It is well known that, surface splines handle geometric distortion very well. The performance of surface splines for dense correspondence can be significantly improved by the reliable control points, but...
In a response to economic growth, electric power utilities installed many electric power facilities to meet power demand. However, these facilities have aged and should be replaced in the near future. Moreover, the demand is said to constantly increase. Therefore, it is necessary to partially upgrade facilities. In this paper, we upgrade transformers with one of the financial engineering techniques...
Fan-Out Wafer Level Packages (FOWLPs) and Fan-Out Panel Level Packages (FOPLPs) have been proposed for promising candidates of the advanced packages for multifunctional LSI with many I/O (input/output). FOPLP is expected to reduce the cost of FOWLP by improving the productivity per substrate. Dielectric materials for redistribution layers (RDLs) are one of the most important materials for FOPLPs....
Downsizing the Cu signal traces in the redistribution layer is an effective approach to increasing the number of signal I/O lines and thereby greatly increasing signal processing performance between logic and memory chips in advanced fine-pitch packaging. Downsized Cu traces, however, are vulnerable to current stress, which degrades electromigration resistance. This is a serious problem in advanced...
The paper considers the problem of improving the reliability of the hardware and software of autonomous unmanned underwater vehicles. The aim of the work is to investigate and develop methods for emergency homing of the AUV to the source of the reference signal using minimal input data. The idea is proposed of estimating the speed of the source and receiver approach by analyzing the deviation of the...
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