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We introduce a new framework for performing multiple comparisons with a standard when simulation models are available to estimate the performance of many different systems. In this setting, a large proportion of the systems have mean performance from some known null distribution, and the goal is to select alternative systems whose means are different from that of the null distribution. We employ empirical...
The article presents an innovative method for assessing performance of modular SDN controllers, focusing on test customization. The method was validated by construction of a testing framework that gives its users the opportunity to emulate various network traffic patterns by using arbitrarily chosen applications, rather than simulating workloads. The presented solution is more comprehensive than others...
The contemporary electric power system is highly dependent on Information and Communication Technologies which results in its exposure to new types of threats, such as Advanced Persistent Threats (APT) or Distributed-Denial-of-Service (DDoS) attacks. The most exposed components are Industrial Control Systems in substations and Distributed Control Systems in power plants. Therefore, it is necessary...
Christof Ebert (Vector Consulting) and James Cain (Snell Advanced Media) discuss why the cyclomatic-complexity metric is popular in industry even though academia tends to shun it.
Regression testing is the way to ensure the current version of the program is up and running. Continuous testing throughout the development cycle leads to detecting bugs as early as possible; however, it imposes huge overhead if the entire test suite has to be run. In this paper, powered by the goal of early detection of bugs, a regression test selection technique is proposed. The proposed technique...
Semantic role labeling (SRL) is a task to assign semantic role labels to sentence elements. This paper describes the initial development of an Indonesian semantic role labeling system and its application to extract event information from Tweets. We compare two feature types when designing the SRL systems: Word-to-Word and Phrase-to-Phrase. Our experiments showed that the Word-to-Word feature approach...
Detection of the existence of data streams drawn from outlying distributions among data streams drawn from a typical distribution is investigated. It is assumed that the typical distribution is known and the outlying distribution is unknown. The generalized likelihood ratio test (GLRT) for this problem is constructed. With knowledge of the Kullback-Liebler divergence between the outlier and typical...
This paper proposes an approach to automatically generating test cases for testing motion controllers of autonomous vehicular systems. Test scenarios may consist of single or multiple vehicles under test at the same time. Tests are performed in simulation environments. The approach is based on using a robustness metric for evaluating simulation outcomes as a cost function. Initial states and inputs...
Mutation operators have been studied at length to determine which ones are the “best” at some metric (for example creates the least equivalent mutants, creates hard-to-kill mutants, etc.). These studies though have focused on specific test suites, where the test inputs and oracles are fixed, which leads to results that are strongly influenced by the test suites and thus makes the conclusions potentially...
The creation of a suite of unit testing is preceded by the selection of which components (code units) should be tested. This selection is a significant challenge, usually made based on the team member's experience or guided by defect prediction or fault localization models. We modeled the selection of components for unit testing with limited resources as a multi-objective problem, addressing two different...
Online experiments are frequently used at internet companies to evaluate the impact of new designs, features, or code changes on user behavior. Though the experiment design is straightforward in theory, in practice, there are many problems that can complicate the interpretation of results and render any conclusions about changes in user behavior invalid. Many of these problems are difficult to detect...
With increasing critical business organizations focusing on the quality of service in cloud applications, high availability (HA) has become critical for the product level cluster of cloud applications. Existing availability evaluation methods or testing projects for cloud platforms, however, cannot sufficiently verify cluster tolerance to various reasonable environmental faults. This paper proposes...
Nowadays, Information Technology (IT) has been widely used by government organization in many aspects, especially in providing public services. Various researches proved that the use of IT in government sector can improve the public value. The purpose of this study is to develop IT public value model for measuring IT performance in government organization. The model will be tested using confirmatory...
With the ever-shrinking global geometries on a die and the concomitant rise in the complexity of interconnections in an on-chip network (NoC), the links used therein often suffer from various manufacturing defects such as shorts. These defects not only cause logical or functional errors but also give rise to various other system level failures such as duplication, misrouting, or dropping of a packet,...
This paper presents a distributed on-line test mechanism that detects stuck-at faults (SAFs) in the channels as well as identifies the faulty channel-wires in an on-chip network (NoC). The proposed test mechanism improves yield and reliability of NoCs at the cost of few test clocks and small performance degradation. Additionally, the mechanism is scalable to large-scale NoCs. We study the impact of...
A well defined testing strategy is essential for any software development project. Testing efforts need to be carefully planed and executed in order to ensure effectiveness. Programming failures can represent a high risk for business. In order to mitigate such risk, companies have been increasingly investing more resources on software testing.
Continuous Delivery is an agile software development practice in which developers frequently integrate changes into the main development line and produce releases of their software. An automated Continuous Integration infrastructure builds and tests these changes. Claimed advantages of CD include early discovery of (integration) errors, reduced cycle time, and better adoption of coding standards and...
This paper presents the results of the Competition on the Analysis of Handwritten Text in Images of Balinese Palm Leaf Manuscripts that was organized in the context of the 15th International Conference on Frontiers in Handwriting Recognition (ICFHR-2016). This competition provides a suitable challenge for testing and evaluation of robustness for some methods, image features and descriptors which were...
Traditional bus-based systems-on-chip (SoCs) are turned to on-chip networks (NoCs) to overcome communication bottleneck. But, fabricating such NoC-based systems without any defect in interconnects or logics is a major challenge. This paper proposes a cost effective and scalable on-line test solution that detects and diagnoses intra-and inter-shorts in NoC interconnects. The proposed solution offers...
The transition from an informative to a service oriented interactive governmental portals has become a necessity due to the time and cost saving benefits for both governments and users. User experience is a key factor in maintaining these benefits. In this study we propose an E-government Portal Assessment Method (EGPAM), which is a direct method for measuring user experience in e-government portals...
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