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.
This paper describes a new heuristic approach letting an agent in a multi-agent system make a decision for selecting tasks to undertake. The proposed approach consists in giving the agent a profile including preferences and physical parameters, and a description of its beliefs about the environment. The decision engine allowing the agent to do a specific task is local to the agent and takes into account...
Previously, queries on spatial data involves, finding nearest neighbor from the current location and also finding locations in given range, so called range queries involves condition or predicate on geometric objects. Many applications today, call a new form of queries which comes with a condition on their spatial data, i.e. location and also conditions on their text attached to locations. Instead...
With the amount of data increasing rapidly, how to improve the scalability of nonlinear clustering has become a very crucial and challenging problem. In this paper, we design an efficient parallel nonlinear clustering algorithm by using a four-stage MapReduce framework. In our approach, we need to compute two quantities based on distance matrices, which, however, is difficult to compute in a MapReduce...
Let p be an odd prime number as the characteristic of finite field, this paper introduces a pseudo random binary sequence generated by a primitive polynomial of degree 2 over Fp, trace function, and Legendre symbol. Then, its period and autocorrelation are introduced with a small example.
A MapReduce cloud is the key to the success of cloud computing nowadays by the capability of processing large datasets simultaneously on nodes in a cloud. However, a MapReduce cloud may waste many CPU resources to frequently process similar intermediate data in its Reduce tasks because specific intermediate data is always moved to specific Slave nodes. A MapReduce cloud can utilize the proposed idea...
Caching is an approach to smoothen the variability of traffic over time. Recently it has been proved that the local memories at the users can be exploited for reducing the peak traffic in a much more efficient way than previously believed. In this work we improve upon the existing results and introduce a novel caching strategy that takes advantage of simultaneous coded placement and coded delivery...
Stacked multicell converter (SMC) is one of the well-known breed of multilevel converters. There are several modified configurations of SMCs presented in literatures. Reduced SMC is the most advanced one whose pros are reduced amount of flying capacitor causing to reduce the size and cost of SMC. This paper proposes a reduced SMC based dual function DVR which works in two modes of voltage compensator...
Openly available online sources can be very valuable for executing in silico case-control epidemiological studies. Adjustment of confounding factors to isolate the association between an observing factor and disease is essential for such studies. However, such information is not always readily available online. This paper suggests natural language processing methods for extracting socio-demographic...
In the cooperative data exchange problem, a set of clients share a lossless broadcast channel. Each client initially has a subset of packets in the ground set X, and wishes to learn all packets in X. The clients exchange their packets with each other by broadcasting coded or uncoded packets. In this paper, we consider a generalization of this problem for the settings in which an unknown (but of a...
Deduplication has become essential in disk-based backup systems, but there have been few long-term studies of backup workloads. Most past studies either were of a small static snapshot or covered only a short period that was not representative of how a backup system evolves over time. For this paper, we collected 21 months of data from a shared user file system; 33 users and over 4,000 snapshots are...
This paper presents report on how to implement The Axis Rotation Fast Decoupled Load Flow (ARFDLF) method in the distribution systems. ARFDLF was effective to enhance the convergence of the Fast Decoupled Load Flow (FDLF) method when analyzing a power system with high R/X ratio and it is applied for distribution systems. Distribution systems have some features that challenge the application of FDLF...
For any data in memory, the neighborhood of data contains the relations(such as order relations) between these data that have some topology patterns. These patterns provide a base for the time or spatial locality that can be used to improve the data access latency. When the data are migrated to cache hierarchy, these topology patterns should be kept well so as to build a just in-time locality environment...
The paper proposes a new scheme named as WPP (Web Page Personalization) for effective web page recommendations. WPP consist of page hit count, total time spent in every link, number of downloads and link separation. Based on these parameters the personalization has been proposed. The system proposes a new implicit user feedback and event link access schemes for effective web page customization along...
Graph Steganography (Graphstega) provides a method of covert communication by converting a message to plotted data in a graph. Due to numerous usages of graphs in our daily life, Graphstega can hide secret message communication without arising any suspicion. This paper proposes a secured Graphstega approach aiming at a secured method of information hiding that looks like innocent and unnoticeable...
In this paper, we apply the k-core decompostion to analyse the Autonomous System (AS) level Internet connectivity graph from January 2006 to October 2013 and finally obtain 94 Internet Nuclei for each month. Then, we empirically study the evolution and characteristics of the Internet Nucleus and find that the size of the Internet Nucleus grows in a linear form, which is different from the exponential...
Presence of triangles in massive graphs provides many important indications to different graph algorithms. In-memory algorithms don't work for massive graphs since these graphs cannot fit into the memory. Recently, external memory-based algorithms have been proposed for efficient triangle listing which focused on I/O efficiency to improve the performance of triangle listing. However, the existing...
Stochastic circuits provide very high efficiency in terms of gate area and power consumption compared with conventional binary logic. However, they require random bit streams generated by stochastic number generators (SNGs), which account for a significant portion of area and energy offsetting their merits. In this paper, we propose a new SNG that significantly reduces area and energy while improving...
The clock skew, or the physical ticking rate difference between two digital clocks, has been revealed to have potential on serving as the device fingerprint for identification/authentication purpose. However, it remains as an open issue to detect clock skew replication behavior, which is realized by sending altered timestamps. In this study, it is confirmed that an attacker may fake any target skew...
Inspection methods and cheap self-reporting procedures have been significantly employed in the field of Human-Computer Interaction for assessing the usability of interfaces, systems and technologies. However, there is a tendency to overlook aspects related to the context and features of the users during the usability assessment process. This research introduces the concept of mental workload as an...
An improvement of IEC-61123 in the field of sequential probability ratio test (SPRT) is proposed. The current standard does not provide a proper solution for modern industry's needs, and the test plans are not up-to-date with the knowledge in the area of sequential tests. The advantages of the proposed version are reflected by the efficacy and accuracy of the tests, the wider range of the ready to...
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.