Supporting Electronic Negotiation for Intelligent Trading

Author(s):  
Leila Alem ◽  
Ryszard Kowalczyk ◽  
Maria R. Lee

Intelligent negotiation agents are software agents, which can negotiate the terms of transactions on behalf of purchasers and vendors on the Internet. Current solutions are mostly limited to single attribute negotiations, and are typically used to determine price. Moreover they typically assume information to be precisely defined and shared between the parties. Bargaining situations are, in most cases, characterized by conflicting interests among the agents that don’t cater for common interests and possibility for collaboration to improve the outcomes of the parties. Another limitation of existing on-line negotiation agents is that their negotiation is usually taking place in a centralized marketplace where the agents meet and negotiate following a set of protocols that don’t cater for more open and direct party-to-party negotiations. This chapter reports on solutions for addressing the issues of negotiations with incomplete and imprecise information, dynamic coalition formation and negotiation ontologies. The negotiation with incomplete and imprecise information uses fuzzy constraint-based reasoning and the principle of utility theory. The formation of coalition is based on negotiation over the distribution of the coalition value and the agent level of resources. The negotiation ontologies make use of shared ontologies as well as individual ontologies to avoid misunderstanding and make data exchange meaningful.

2007 ◽  
Vol 9 (2) ◽  
Author(s):  
F. W. Voges ◽  
S. C. Warden

The management of information flow in the order processing activities of small enterprises is not always understood. An inefficient supply chain is often the result of the lack of timely and accessible inter-firm information and data exchange. Small suppliers often do not have the technology infrastructure and capable resources available for proper integration with supply chains. This research investigated suppliers and fast moving consumer goods (FMCG) retailers, adopting business-to-business (B2B) e-commerce. Small businesses are the focus of this research, as they contribute to a large portion of the South African economy and play an important role in the supply chains of retailers. Case study research using evidence obtained from nine small, medium and micro enterprises (SMMEs) and suppliers located in the Western Cape, South Africa, was used. It was found that small suppliers have different processes for conducting business with various retailers. Literature revealed little evidence of using the Internet as an enabling technology in on-line order processing. From the analysis, nine improvement areas were identified to enhance the conduct of efficient B2B order processing and associated information flow. These improvement areas were merged with four factors that were identified in a framework when adopting e-supply chains. This resulted in the proposition of guidelines for small suppliers when adopting B2B e-commerce for order processing. 


2017 ◽  
Author(s):  
Astrid Kerkweg ◽  
Christiane Hofmann ◽  
Patrick Jöckel ◽  
Mariano Mertens ◽  
Gregor Pante

Abstract. This article is part of the model documentation of the MECO(n) system (MESSyfied ECHAM and COSMO models nested n-times). As part of the Modular Earth Submodel System (MESSy) the Multi-Model-Driver (MMD v1.0) was developed to couple on-line regional model instances into a driving model (see Part 2 of the model documentation). MMD comprises the message passing infrastructure required for the parallel execution (multiple program multiple data, MPMD) of different models and the communication of the individual model instances, i.e. between the driving and the driven models. Initially the MMD library was developed for a 1-way coupling between the global chemistry climate model EMAC and an arbitrary number of (optionally cascaded) instances of the regional chemistry climate model COSMO/MESSy. Thus MMD (v1.0) provided only functions for unidirectional data transfer, i.e., from the larger scale to the smaler scale models. Soon, extended applications requiring data transfer from the small-scale model back to the larger scale model became of interest: e.g., the original fields in the larger scale model can directly be compared to the up-scaled small-scale fields to analyse the gain by the original small-scale calculations, if the results are up-scaled. Secondly, the fields originating from the two different models might be fed into the same diagnostic tool, e.g. the on-line calculation of the radiative forcing calculated consistently with the same radiation scheme. Last but not least, enabling the 2-way data transfer between two models is the first important step on the way to a fully dynamically and chemically 2-way coupling of the various model instances. In MMD (v1.0) interpolation between the basemodel grids is performed via the COSMO pre-processing tool INT2LM, which was implemented as MMD submodel for on-line interpolation, specificially for mapping onto the rotated COSMO grid. A more flexible algorithm is required for the backward mapping. Thus, MMD (v2.0) uses the new MESSy submodel GRID for the generalised definition of arbitrary grids and for the transformation of data between them. In this article we explain the basics of the MMD expansion and the newly developed generic MESSy submodel GRID(v1.0) and show some examples of the applications mentioned above.


2013 ◽  
Vol 336-338 ◽  
pp. 1225-1228
Author(s):  
Hui Xu ◽  
Li Li

In order to realize the control and management system of LED bulb assembly line that can exchange and analyze real-time information of production line, first, a monitoring system based on WinCC was built; it can be used not only in on-line real-time monitoring but also in analyzing and diagnosing line’s trouble. Second, we used Matlab as the data processing platform, exchanged data by OPC technology, combined Matlab’s powerful calculate ability with power of WinCC real-time collect data, so the dynamic data exchange between Matlab and WinCC can be realized .In the end , BPNN was used to relate test results of LED Bulb to machine’s running parameters by learning data from host computer. In this way, parameters of machines can be adjusted in real-time and qualified products' rate can be improved.


Author(s):  
Dongmei Du ◽  
Qing He ◽  
Zengqin Wang

With wide application of large-scale turbine-generator sets, the torsional vibration of large-scale turbine-generator set has become the focus of study. Exact measurement of torsional vibration is the key. Proceeding from actual conditions of turbine-generator set, this paper has fully considered the precision of measuring and actual demand for application and developed a new intelligent measurement system of torsional vibration. This system configured two channels of measuring torsional vibration and eight A/D channels that can accept voltage or current ranged from 4 to 20mA. So the system can measure not only torsional vibration of shafts but also other state parameters, such as three-phase currents, voltages and load of set. The system consists of sub intelligent acquiring card, main PC computer and monitoring program. Data exchange between sub system and main computer is accomplished with the help of the FIFO memory. This structure enables signal acquirement and analysis to operate simultaneously and make full of the real-time monitor function of microprocessor and the rapid data processing ability of PC. Adopting 80C196KC chip with 20MHz frequency as the core and making use of HSI function, the system realizes on-line exact measurement of torsional vibration with the resolution of 0.014°. The whole signal processing is controlled by program, which improves the system’s flexibility, so that it can be used in many kinds of situations. According to the experiment result, it is proved that this system is easy in operation, steady in running and excellent in anti-interference ability.


1994 ◽  
Vol 37 (5) ◽  
Author(s):  
B. Dost

n 1993 the ORFEUS Data Center (ODC; Dost, 1991) changed hosting organisation. It moved within the Netherlands from the University of Utrecht to the Royal Netherlands Meteorological Institute (KNM1) in de Bilt. This change in hosting organisation was necessary to ensure a longer term stability in the operation of the ODC. Key issues for the ODC are the rapid on-line data access and quality controlled, complete and efficient off-line data access. During 1992 the ODC became the European node in the international SPYDER system which provides near real-time access to digital broadband data from selected high quality stations. Electronic messages trigger soveral centers well distributed over the globe. These centers then collect the data by modem from selected stations in their region. Finally, data are distributed between data centers over internet.


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