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This paper proposes a topic-based method to reflect calls and proximities simultaneously into finding interaction patterns from a mobile log. For this purpose, the proposed method regards calls and proximities as a homogeneous information type that are drawn from the same temporal space expressed by the same distribution, but with different parameters. The number of proximities in a mobile log usually...
Sentiment analysis or opinion mining aims to use automated tools to detect subjective information such as opinions, attitudes, and feelings expressed in text. This paper proposes a novel probabilistic modeling framework called joint sentiment-topic (JST) model based on latent Dirichlet allocation (LDA), which detects sentiment and topic simultaneously from text. A reparameterized version of the JST...
In traditional Vector Space Model (VSM) the TF*IDF method is widely used to adjust the weight of terms in text mining. However TF*EDF can not represent the semantic information of text by neglecting the semantic relevance between terms. In this paper, an improved ontology-based VSM is presented, in which the ontology-based term similarity is used to readjust the weight of semantically related terms...
As a social entity, agent needs to collaborate with others to execute a task in most multi-agent systems. Agent has its own intention and interest as an individual, which is ignored in most systems and has great influence on cooperating with other agents. In this paper, referring to the principle of interest group in real life, a multi-agent cooperation scheme based on interest group to solve the...
It is difficult for incomplete contract theory (ICT) to modeling under the consumption of bounded rationality. After the GHM model, the challenge for its robust foundation hasn't stopped. Besides, the robustness becomes perfect after the disputes between MT and HMS. Theirs debate is focus on theory's foundation. This paper formalizes the disputes in an integrated framework and comments on the constraint...
Although mixed-membership models have achieved great success in unsupervised learning, they have not been widely applied to classification problems. In this paper, we propose a family of discriminative mixed-membership models for classification by combining unsupervised mixed-membership models with multi-class logistic regression. In particular, we propose two variants respectively applicable to text...
Based on analysis of various P2P architectures, the authors in this paper integrate semantic grid with super-peer P2P architecture. First of all, the authors introduce resources searching algorithm based on semantic cluster, and analyze the educational resources sharing mechanism & service system based on super-peer P2P, especially on the model of super-peer P2P. Then the authors focus on the...
With the development of grid computing, economy models are invented and increasingly applied, however, that is under the assumption of both transaction parties are honest and trustworthy. In reality there is serious information asymmetry between the transaction participators. Information asymmetry may cause resource providers opportunistically exploit the information gap for resource consumers on...
This study addresses problems of service design in movie theaters and proposes a new auction mechanism that addresses seat reservations. In movie theater services, the movie price is generally fixed; moreover, it does not depend on the quality of contents or the theater seat. Therefore, such a service mechanism by the fixed pricing cannot reflect the value of movie contents. In this study, introducing...
Real-time water allocation is proposed to settle the water scarcity situation and to deal with the uncertainties brought by the uneven spatial/temporal distribution of precipitation. The problem is described as: how to allocate current water resources to meet different sectors' demands while considering differences in water use efficiency. We introduce data envelopment analysis(DEA) models to evaluate...
Economic models have shown their suitability to allocate resources efficiently, considering an unbalanced supply and demand. As the use of the Grid is extending, a numerous set of distributed resource allocation frameworks have been developed to attain efficient resource management while keeping the scalability of the Grid. However, those frameworks make use of either simple double auction mechanisms...
Mixed-model assembly lines typically rely in intermediate stock buffers to handle disturbances and optimize the car sequence between the main workshops in the plant. The optimization of these buffers is often constrained by installation and production specific rules. In this paper an algorithm for the stock management of buffers with drawers is proposed to handle constraints induced by the production's...
Based on discussing collaborative management of supply chain enterprises, this paper broke through the inequality between responsibility and benefits distribution in the traditional supply chain enterprises, and established a new model of benefits distribution about collaborative supply chain enterprises, which is based on Nash equilibrium and Game Theory. In this new model, many factors such as the...
Rapid tourism development in Jiuzhaigou National Park has challenged the notion of balance between tourist numbers and natural resource management. Jiuzhaigou National Park is one of the most popular natural tourist attractions in China. The current issues faced are threefold; how to manage the number of tourists accumulating in each of the scenic areas of the national park, how to expand the carrying...
Owing to the dynamic nature of grid computing environment, system behavior such as QoS for consumer depends crucially on the selection of appropriate subset of the available resources. Thus, a well-defined system model that provides high system availability using a scheduling mechanism is required. In this paper, we propose the SLA based Policy Administrator (SPA) with the resource scheduling scheme...
We develop a dynamic realistically calibrated life-cycle model to study the optimal portfolio choice for Chinese families with risky housing. We try to find the relationships between household asset allocation and its housing decision, and the effect of housing transaction cost, housing price incremental rate and the lowest level of housing. Our analysis demonstrates that the home ownership rate and...
The theory of procurement auction of production traditionally assumes that the bidder profit is affected by his own attribute, such as cost and quality. In our paper, we consider a logistics service e-procurement mechanism affected by information resources sharing attribute of both sides, which is based on a simple multidimensional auctions model. We also discuss an application framework of our mechanism...
This article constructed a measurement model of human resource management quality (HRMQ) from the perspective of total quality management (TQM) and enterprise internal service management quality, testing the validity of the model based on 326 enterprises' samples which collected by a questionnaire developed by the author independently. The result showed that HRMQ could be appraised form the level...
Many scholars have studied the optimum exploitation sequence of the exhaustible resource, but one of its common characteristics is to establish a planning model and to seek the optimum solution under different bound conditions. This paper establishes a model from the angle of information searching and reveals the motives of the arrangement of exploitation sequence for the contemporary people. This...
In order to obtain the optimal profit allocation strategy among the cooperation enterprises in supply chain, consisting of one supplier and two distributors, Nash negotiation model considering investment weght is developed. Fristly, some advantages and disadvantages of Nash negotiation model in profit allocation of supply chain are discussed. Then, it is proposed to improve the model through the investment...
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