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.
We propose a heterogeneous information network mining algorithm: feature-enhanced Rank Class (F-Rank Class). F-Rank Class extends Rank Class to a unified classification framework that can be applied to binary or multiclass classification of unimodal or multimodal data. We experimented on a multimodal document dataset, 2008/9 Wikipedia Selection for Schools. For unimodal classification, F-Rank Class...
Support Vector Machines (SVM) is a powerful classification technique in data mining and has been successfully applied to many real-world applications. Parameter selection of SVM will affect classification performance much during training process. However, parameter selection of SVM is usually identified by experience or grid search (GS). GS is simple and easily implemented, but it is very time-consuming...
Video captured from Unmanned Aerial Vehicles (UAV) usually suffer from undesired motion of the sensors, which severely defects detecting and tracking targets of interest. In this paper, a fast video stabilization algorithm for UAV is proposed to remove undesired motions and produce stabilized images. Firstly, a set of fast matching strategies are considered to match successive frames. Then, with motion...
Since product substitutability would affect the vendor's ordering strategy and the manufacturer's return policy, it is interesting for the manufacturer to make proper return policy for substitutable products such that it is worthwhile to maximize the profit. This paper proposes a two-echelon model composed of a manufacturer and a vendor with two substitutable products under fuzzy demands. In the model,...
This paper studies the problem of multicast routing and channel assignment in multi-channel and multi-interface wireless mesh networks. The advantage of the wireless broadcast's nature is used to reduce interference and improve network throughput. The employed network model is first described. Next, a heuristic channel assignment algorithm that makes use of the wireless broadcast's advantage is presented...
It turns more and more important for a city to create a brand under the severe inter-urban competition. Brand positioning is crucial for city brand. Based on forerunner's research achievement and the experimental results, especially on the city brand positioning with full use of city resource endowment, this paper emphasizes on the research of city brand position under urban agglomeration through...
A hybrid metaheuristic (HMH) algorithm is developed to solve the 1D and 2D multi-objective orthogonal single stock size cutting stock problem (SSSCSP). The objectives are to minimize the waste and the types of cutting patterns. The hybrid metaheuristic integrates greedy algorithm with genetic algorithms. Unlike traditional genetic algorithm (GA)-based approaches that optimize the whole cutting plan...
An opportunistic network is a network where each node only has connectivity with other nodes opportunistically. To disseminate data in this kind of network is a challenging task and had drawn lots of research effort. When two nodes have connectivity with each other, the data bundles stored in their memory will be either replicated or forwarded to the other node in the hope that the data eventually...
This paper presents a mixed-signal power-factor-correction (PFC) control IC for the single-phase critical-conduction-mode (CRM) boost AC/DC converters. The peak current mode control is used and realized by using the analog circuit technique. The outer voltage loop control adopts digital control technique to implement. This paper analyzes effect of the hysteresis band of the comparator in current loop...
This paper presents a digital control scheme for boost power-factor-correction (PFC) AC/DC converters to achieve both low total-harmonic-distortion (THD) and fast dynamic response under large load variations. Compared with conventional control methods, the proposed digital control scheme can achieve a lower THD by sensing the input line voltage for feed-forward compensation in current loop to eliminate...
RFID is a widely adopted technology in the enterprises for inventory checking and management. Due to the ubiquitous nature of RFID, attackers can easily launch attacks over wireless channel whenever there is a flaw on the RFID authentication protocol being used. A successful attack can imply a substantial loss in the enterprise and may trigger a series of problems. In this paper, we investigate a...
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.