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.
With the development of e-commerce, shopping on-line is becoming more and more popular. The explosion of reviews have led to a serious problem, information overloading. How to mine user interest from these reviews and understand users’ preference is crucial for us. Traditional recommender systems mainly use structured data to mine user interest preference, such as product category, user’s tag, and...
Query expansion methods based on search logs could improve the quality of search results to some extends. But when the search logs are sparse, this kind of query expansion methods will have poor quality of search results and are unable to meet the user's search request, etc. This paper presents the search log sparseness oriented query extension method. By introducing the determination rule of data...
Based on a kind of typical high speed monohull vessel, the paper discusses an integrate optimization's method of Synthetical Fundamental Mechanics Characteristic with the materials of some ships and some relevant experience expressions. The authors use the weighted sum of rapidity, sea-keeping ability and maneuverability as the sub-objective function of ship performances; use the weighted sum of static...
Ad Hoc network is a newly developed network without fixed infrastructure and a changing topology. Its vulnerability makes it prone to attacks, which brings greater challenges for intrusion detection for Ad Hoc. Through analyzing the existing intrusion detection techniques as well as the characteristics of Ad Hoc network, this paper has proposed an intrusion detection technique based on class association...
Motion trajectory is one of the most important cues for extracting semantic information from video data. Numerous studies have focused on the analysis and comparison of the similarity among motion trajectories. Most of the previous methods rely on a global measure that does not account for partial or lost information. In particular, existing techniques fail to capture the salient features of local...
In this paper, VC++ serves as a workspace to establish the features of speediness and navigation speed controlling. A mathematical model of intelligent propulsion system of an adjustable-pitch-screw-propelled hydrofoil sliding craft was built up, and then applied the fuzzy-genetic algorithm (FGA), to program the optimizing-computing process of the best combination of the controlling parameters of...
High utility itemsets mining is another hot topic besides association rule in data mining field. It considers not only item's support values but also the quantities and profit. In current research, all algorithms mining high utility itemsets are based on candidate set generation-and-test category where too many candidates will be generated and tested. In this paper, an algorithm-DHUI based on PHUI-Tree...
Motion information is regarded as one of the most important cues for developing semantics in video data. Yet it is extremely challenging to build indexing and browsing tools for video data, particularly when it involves interactive motions of multiple objects. The problem is further complicated when the video archives are dynamically updated, and/or queries contains partial information. An efficient...
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.