Web recommendation systems have become a popular means to improve the usability of web sites. This paper describes the architecture of a rulebased recommendation system and presents its evaluation on two real-life applications. The architecture combines recommendations from different algorithms in a recommendation database and applies feedback-based machine learning to optimize the selection of...

In this paper, we propose a bridge-type e-mail proxy architecture to release the bottlenecks of the two popular mail security architectures: software mail filter and e-mail gateway. In the proposed architecture, a bridge-type e-mail proxy is located in front of mail server and sniffs all flowing packets on the network. If sniffed packets belong to one of mail protocols, the proposed system filt...

The square root is a basic arithmetic operation in image and signal processing. We present a novel pipelined architecture to implement N-bit fixed-point square root operation on an FPGA using a non-restoring pipelined algorithm that does not require floating-point hardware. Pipelining hazards in its hardware realization are avoided by modifying the classic non-restoring algorithm, thus resultin...

CMAC Neural Network is a popular choice for control applications. One of the main problems with CMAC is that the memory needed for the network grows exponentially with each addition of input variable. In this paper, we present a new CMAC architecture with more effective allocation of the available memory space. The proposed architecture employs hierarchical clustering to perform adaptive quanti...

component architectures are getting more popular. Industrial and academic communities try to design facilities for description of component architectures. In the SOFA/DCUP project, the description of the architecture is based on the CDL (component definition language), that embodies the behavioral protocols. The behavioral protocols of components describe the behavior of the system. One of the ...

Recommender systems have become increasingly popular. Most of the research on recommender systems has focused on recommendation algorithms. There has been relatively little research, however, in the area of generalized system architectures for recommendation systems. In this paper, we introduce weHelp: a reference architecture for social recommender systems - systems where recommendations are d...

Modular exponentiation is the cornerstone computation in public key cryptography systems such as RSA cryptosystems .The operation is time consuming for large operands. This paper describes the characteristics of three architectures designed to implement modular exponentiation using the fast binary method: the first field programmable gate array (FPGA) prototype has a sequential architecture, th...

We present and describe CIF-CK — a social agent architecture that models reasoning about persistent social interactions to improve narrative engagement and play experience for human interactors. The architecture is inspired by McCoy et al’s Comme il-Faut (CiF) architecture that represented rich social interactions between agents that included feelings, social and relationship contexts, and long...

Due to insufficient network bandwidth on Internet, multimedia-oriented applications are still not popular now. The traffic on Internet often causes congestion in routers. Therefore, Internet must overcome these challenge and bottleneck to provide more multimedia-oriented applications. In this paper, we study the transmission of MPEG-4-based video traffic in MPLS networks. We propose a better ar...