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With the rapid growth of internet-scale, social media services (such as micro-blog) have gradually become a popular platform for the dissemination of information, which provides new research direction for Named Entity Recognition(NER). However, the informal structure and incorrect grammar in micro-blog and the complexity of Chinese expression make a serious challenge for NER task. Automatic identification...
In recent years, with the development of the microblog platform, text mining technology in microblog is also developing fastly. Microblog's opinion sentence recognition task is the prerequisite of emotional polarity classification and public opinion analysis. Because of news topic-typed microblog's colloquial feature and the freedom of language structure, we put forward a combination classification...
In this paper, resource allocation problem for multicast service in OFDM-based wireless cellular networks is investigated and a coding-based opportunistic scheduling scheme is proposed. In the proposed scheme, according to frequency resource and time resource, layered coding and erasure-correction coding are adopted, respectively. Layered coding divides the data into base layer and enhancement layer,...
In this paper, we investigate resource allocation issue in OFDM-based wireless multicast system and joint subcarrier and power allocation scheme is proposed. The optimal solution of the combinable allocation has high computational complexity, so the solution is divided into two steps. In the first step, the subcarriers are allocated to the multicast services, and all the users that have subscribed...
We propose a multicast resource allocation scheme in single frequency networks to maximize the total rate while guaranteeing quality-of-service (QoS) requirement of real-time service. In this scheme, we first design a user connection control algorithm to reduce feedback load. The algorithm determines to which base stations users should feedback channel state information. We then formulate a joint...
Aiming at the difficult problem that it's hard to share models of group decision support system (GDSS) in heterogeneous environment, the paper constructs internal structure and applicable external scenario for model base system of GDSS using service-oriented architecture (SOA), which is an integration technology architecture. The authors design an access mode of model base system based on “service...
Praised as of future generation technology architecture of integration, SOA (Service-Oriented Architecture) can be used to resolve the difficult problem in exchanging of information system. Foreign software providers' products of SOA are not applicable to domestic enterprises in development from the aspects of ease and cost performance. Using the latest open-source architecture, the paper analyzes...
In this paper, we investigate resource allocation issue in OFDMA-based decode-and-forward cooperative networks and propose joint subcarrier and power allocation schemes. The optimal solution of this combinable allocation has high computational complexity, so we divide our solution into two steps. The first step is to distribute subcarriers to relays and destination under the assumption of equal power...
The elevator system model based on colored net is given in. However, "node explosion" is still unresolved well. Since the model is so complicated that is not completly to simulate model of elevator. Through analyzing the demand of elevator system, this paper presents a colored cyber net with a colored inhibitor arc. The elevator system model based on the colored cyber net is proposed.
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