The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Goal: This work aims to identify metrics to estimate the effort to develop Business Intelligence (BI) system. Methodology: It was conducted a secondary study in order to identify metrics related to BI and to business process complexity. The results conducted to a hypothesis that relates business process complexity to effort required to implement it on BI System. This hypothesis was developed on a...
This paper shows an EDCFG (extended differential control flow graph) to improve the accuracy of UCNs (update complexity numbers) that are utilized for the selection of existing test cases in regression testing.
Software changes are inevitable during maintenance, Object-oriented software (OOS) in particular. For change not to be performed in the “dark”, software change impact analysis (SCIA) is used. However, due to the exponential growth in the size and complexity of OOS, classes are not without faults and the existing SCIA techniques only predict change impact set. This means that a change implemented on...
A planar path planner for a persistent surveillance application in the presence of static obstacles is developed for a team of homogeneous unmanned aircraft systems (UAS). The role of the team is to provide complete coverage (sensor data or image acquisition) of a user designated area within a specified period. A two stage planner is chosen so that vehicle maneuver constraints can be satisfied in...
Although the importance of Disaster Response Networks (DRNs) has been highlighted in many researches, the requirement of spectrum agility has not been well addressed. In this paper, we focus on using all-spectrum cognitive radio for DRNs to fulfill this requirement. We consider a DRN constructed by Cognitive Radio Base Stations (CRBSs), which are deployed in the disaster affected area. Each CRBS is...
In this paper, we design the low-complexity tree search-based detectors for generalized spatial modulation (GSM) aided single carrier (SC) systems over dispersive channels. Specifically, we commence with a brief review of the existing detection algorithms and then extend the sphere decoding-aided (SD) tree search algorithms designed for flat fading channels to GSM-aided SC systems. Moreover, a pair...
Downlink non-orthogonal multiple access (NOMA), where users are paired as user set and multiplexed in the power domain, is a promising technology for fifth generation (5G) communication system. This paper studies joint optimization of user pairing and power allocation to maximize generalized proportional fair metric subject to transmit power constraints. This problem can be divided into two parts:...
State-of-the-art video coding standards adopt large block and transform sizes. Moreover, as resolutions keep growing, there is a trend in adopting even larger structures in future video encoders, resulting in higher complexity. Therefore, the design of energy-efficient architectures for variable block size distortion metrics are key to keep the energy requirements of battery devices under a reasonable...
A low-complexity, low-power digital correlator for wakeup receivers is presented. With the proposed algorithm, unnecessary computational cycles are dynamically pruned from the correlation using an early threshold check. For the algorithm, we provide a rigorous mathematical analysis for the associated complexity/performance trade-offs. Furthermore, a low overhead hardware architecture with early-termination...
The Successive-Cancellation List (SCL) algorithm is one of the best polar code decoding algorithms in terms of trade-offs between complexity and error correction performance. The List-Sphere Decoding (List-SD) algorithm has been recently proposed: it yields a better complexity/performance trade-off than SCL in the decoding of short polar codes, that can be used as component codes for larger polar...
We introduce Synapse motivated by the needs to emulate workload execution characteristics on high-performance and distributed heterogeneous resources. Synapse has a platform independent application profiler, and the ability to emulate profiled workloads on a variety of resources. Synapse is used as a proxy application (or "representative application") for real workloads, with the added advantage...
Preliminary experiment design and research goals are presented to measure the applicability of restricted computational complexity environments in general purpose development efforts. The Linux kernel is examined through the lens of LangSec in order to gain insight into the make-up of the kernel code vis-à-vis the complexity class of recognizer for input to each component on the Chomsky Hierarchy...
Deployment of portable access points (APs) in disaster affected areas has been heralded by many contemporary researchers as a key technique to formulate disaster recovery networks. However, existing research works do not effectively address one of its key problems, i.e., the low capacity of the backbone network (constructed by the APs) which is unable to satisfy the high user demands emanating from...
The paper presents analysis and comparison of complexity of selected algorithms of motion estimation used in video compression. With the use of own, highly optimized software implementation the authors explored complexity of the methods applied in the framework of the new High Efficiency Video Compression (HEVC) technology. The influence of many different factors on motion estimation complexity has...
Estimating accurately important nodes for routing in modern and future networks is a key process with numerous benefits. Towards this goal, in this paper we propose Hyperbolic Traffic Load Centrality (HTLC), as a novel alternative to the Traffic Load Centrality (TLC) metric, used for ranking nodes with respect to their importance in the routing operation. HTLC is based on network embedding in hyperbolic...
Because of the existence of channel noise, channel coding serves as an indispensable part of mobile communication system and the essential guarantee for the reliable, accurate, and effective transmission of information. As one of the most competitive channel code candidates for the 5th generation (5G) mobile communication, polar codes are the first codes which can provably achieve the symmetric capacity...
Maintenance is a very expensive activity in the software systems' lifecycle. The ISO 25010 standard considers it as one of its main eight characteristics. In this paper, we propose an approach to assess the maintainability characteristic by its own subcharacteristics as defined by ISO 25010, using several object oriented metrics. A set of rules is defined to capture the influence of the metrics values...
In large project, source code becomes increasing complex and lengthy so program comprehension plays an important and significant role for developers. Sequence diagram generated using static source code or dynamic only approach provides limited execution coverage, additionally contains redundant, dead and fault driven methods, which increase the size of the diagram and complexity. In this paper, to...
Physical-layer network coding (PNC) can potentially boost the throughput of a two-way relay network by 100% compared with conventional packet forwarding schemes. However, the complexity of PNC channel decoders can be considerably higher than the complexity of channel decoders for point-to-point communication systems. Although many PNC channel decoders proposed to date have good decoding performance,...
Signal selection is the pre-silicon evaluation step which maximizes overall reconstruction rate of state elements. Due to its high complexity, recent efforts on signal selection has focused on sequential nodes in the circuit under debug. In this paper we propose a combinational signal selection algorithm which possibly selects combinational nodes of the circuit to maximize state restoration capability...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.