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Rating aggregation is critical to the quality control of recommendation systems and its effectiveness is a deep concern of all users. However, there are some problems in existing recommendation systems. For example, some of the raters from certain source are much more stringent than others, leading the phenomena that some entities with better quality are rejected. In this paper, we propose a novel...
RFID collision is a main challenge imposed by radio wave links shared among a reader and many tags in interrogation zone. Collision is a power-consuming event that reduces the performance of RFID systems. Low power consumption strategy would ensure longer operational life of tags and reader by battery-powered supply. Application of several anti-collision algorithms makes it possible for reader to...
This keynote will give an overview of the evolution of Smart Cities and 50 years of worldwide effort in the development of underlying technologies and empowerment of people, environment, culture and economics. Professor Chang's will talk about where we are at and where we are going. This is followed by the focus on the intelligent logistics ecosystems, its impact on smart cities, 100 years of technology...
By introducing various modes of learning, technology, and specifically educational technology, has drastically changed the knowledge acquisition process. One promising mode is game-based learning (GBL). GBL provides rich and meaningful contexts that effectively supports different forms of learning, which require novel software models. Yet, despite the extensive research on GBL development, proposed...
Linear (k,n) secret sharing scheme is a class of (k,n) secret sharing, where all the n shares of a secret satisfy a linear relationship. It plays an important role in other cryptographic systems, such as multi-party computation and function sharing schemes. On the other hand, cheating problem in (k,n) secret sharing is an important issue, such that cheaters (dishonest players) submit forged shares...
We explore the problem of Chinese character description and font designing in this paper, a novel dynamic description method for Chinese character was proposed. This method includes a dynamic description algorithm by using stroke-segments-vector, stroke elements and generation algorithm by using feature points and their weights, characteristic expression and weight vector of the feature points. Our...
Recreational nature experiences are rehabilitative for humans. Nature-oriented virtual environments (VEs) might be able to provide similar experiences. A pilot study have shown to increase the enjoyment of an exercise experience for retirement home residents, by augmenting their everyday bike exercise with a custom made recreational VE. This paper proposed a set of guidelines with design considerations...
This paper proposes to study a novel problem, discovering a Smallest Unique Subgraph (SUS) for any node of interest specified by user in a heterogeneous social network. The rationale of the SUS problem lies in how a person is different from any others in a social network, and how to represent the identity of a person using her surrounding relational structure in a social network. To deal with the...
THESEUS is an energy-efficient routing system for Shared Sensor Networks (SSNs), with the primary goal of extending network lifetime. THESEUS has two features that distinguish it from other works found in the literature. First, it saves SSN nodes energy by using a packet aggregation algorithm, which reduces the number of transmissions. Second, THESEUS balances energy usage in the whole SSN by its...
In this paper, a session resumption-based end-to-end security scheme for healthcare Internet of things (IoT) is pro-posed. The proposed scheme is realized by employing certificate-based DTLS handshake between end-users and smart gatewaysas well as utilizing DTLS session resumption technique. Smartgateways enable the sensors to no longer need to authenticateand authorize remote end-users by handing...
REVERIE (REal and Virtual Engagement in Realistic Immersive Environments) [1] is a multimedia and multimodal framework, which supports the creation of immersive games. The framework supports the creation of games integrating technologies such as 3D spatial audio, detection of the player's body movement using Kinect and WIMO sensors, NPCs (Non-Playable Characters) with advanced AI capabilities featuring...
At present, Regular Android softwa re, injected in malicious code, is nne of the imp ort an t factors of tha i Android vir us run ram pant. Protectin g the And roid software has become a foc us of attent ion in academia and industry. Address ing the safety pro tecti on Issues of the Android soft ware, this paper will present slime new schemes for Androtd scnware security technology to reinforc e j...
In this paper, we propose a two-tier evolutionary game for dynamic spectrum sharing using Licensed Shared Access (LSA) to serve the additional capacity needs of Mobile Network Operators (MNOs). The proposed algorithm ensures fair and demand-driven allocation of spectrum resources to LSA licensees, guaranteeing spectrum availability for licensees unlike previous spectrum sharing techniques. Moreover,...
The real world is mostly a connected data and better be modeled as graph models. Therefore, graph databases are also gaining much attention. To get some advantages of graph models, a huge volume of data in relational models need be converted to graph models. In this paper, we focus on mapping and converting without semantic loss. This approach studies the semantic abstraction of the relational model...
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