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Normative KGP agents 总被引:1,自引:0,他引:1
Fariba Sadri Kostas Stathis Francesca Toni 《Computational & Mathematical Organization Theory》2006,12(2-3):101-126
We extend the logical model of agency known as the KGP model, to support agents with normative concepts, based on the roles
an agent plays and the obligations and prohibitions that result from playing these roles. The proposed framework illustrates
how the resulting normative concepts, including the roles, can evolve dynamically during the lifetime of the agent. Furthermore,
we illustrate how these concepts can be combined with the existing capabilities of KGP agents in order to plan for their goals,
react to changes in the environment, and interact with other agents. Our approach gives an executable specification of normative
concepts that can be used directly for prototyping applications.
Fariba Sadri is a senior lecturer at Imperial College London, from where she received her PhD. Her earlier work concentrated on integrity
of deductive databases and temporal reasoning, in particular using the event calculus. In more recent years her work has been
on agent technologies and multi-agent systems. She has worked on logic-based agent models, reasoning, dynamic belief revision,
and inter-agent communication and negotiation for resources. She was co-awarded an EPSRC grant for research into logic-based
multi-agents and was co-investigator in the EU SOCS project.
Kostas Stathis is a senior lecturer at Royal Holloway, University of London and he holds a PhD from Imperial College London. His research
interests are in the area of computational intelligence in general and in the intersection of computational logic and cognitive
systems for social computing applications in particular. His research interests include: representation of human-computer
(or computer-computer) interaction as a game; cognitive & autonomous agents; artificial agent societies; agent communication;
programmable agents and agent platforms. He is a co-investigator of the EU ArguGRID project and was a co-investigator of the
EU SOCS project.
Francesca Toni is a senior lecturer at Imperial College London, from where she received her PhD. Her earlier work focused on abductive reasoning.
In more recent years, she focused on argumentation, agent models and multi-agent systems. She has worked on computational
logic-based agent models, agent reasoning, dynamic belief revision, and inter-agent communication and negotiation for resources.
She has been co-ordinator of the EU SOCS project, which developed the KGP model of agency, and is coordinator of the EU ArguGRID
project, on the application of argumentative agents within grid systems. 相似文献
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Afsaneh Safavi Norouz Maleki Fatemeh Honarasa Fariba Tajabadi Fatemeh Sedaghatpour 《Electroanalysis》2007,19(5):582-586
A new type of potentiometric sensor based on a recently constructed carbon ionic liquid electrode (CILE) is described. Two kinds of ionic liquids, i.e., N‐octylpyridinium hexafluorophosphate (OPFP) and 1‐butyl‐3‐methylimidazoluim hexafluorophosphate (BMFP) were tested as binder for construction of the carbon composite electrode. The characteristics of these electrodes as potentiometric sensors were evaluated and compared with those of the traditional carbon paste electrode (CPE). The results indicate that potentiometric sensors constructed with ionic liquid show an increase in performance in terms of Nernstian slope, selectivity, response time, and response stability compared to CPE. 相似文献
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This study is aimed at proposing a practical green procedure for the synthesis of octahydroquinazolinone derivatives using benzaldehyde, dimedone and urea under microwave irradiation in water. A surfactant type polyoxometalate-based organic–inorganic hybrid was able to efficiently catalyze this synthesis. The catalyst was prepared and characterized by Fourier transform infrared, UV–Vis, X-ray diffraction, and thermogravimetric analysis. The employed catalyst exerted a synergistic effect; the anion part acted as a catalyst while the cation part acted as a surfactant in order to increase the concentration of organic reactants in water. The main advantage of this method is its remarkable yield in short reaction periods, which results in the rendering of products with high purity. Moreover, this heterocatalyst is capable of being easily recovered and reused several times. The influences of reaction conditions were studied systematically, and a possible catalysis mechanism was proposed for understanding the highly efficient heterogeneous catalytic behavior. 相似文献
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Niloofar Seydi Behnam Mahdavi Sogand Paydarfard Akram Zangeneh Mohammad Mahdi Zangeneh Fariba Najafi Ali R. Jalalvand Elham Pirabbasi 《应用有机金属化学》2019,33(9)
In recent decades, nanotechnology is growing rapidly owing to its widespread application in science and industry. The aim of the experiment was chemical characterization and evaluation of cytotoxicity, antioxidant, antibacterial, antifungal, and cutaneous wound healing activities of titanium nanoparticles using aqueous extract of Ziziphora clinopodioides Lam leaves (TiNPs@Ziziphora). These nanoparticles were characterized by fourier transformed infrared spectroscopy (FT‐IR), field emission scanning electron microscopy (FE‐SEM), energy dispersive X‐ray spectroscopy (EDS), and UV–visible spectroscopy. The synthesized TiNPs@Ziziphora had great cell viability dose‐dependently (Investigating the effect of the plant on human umbilical vein endothelial cells (HUVECs) cell line) and revealed this method was nontoxic. Then, 2,2‐diphenyl‐1‐picrylhydrazyl (DPPH) free radical scavenging test was done to assess the antioxidant properties, which indicated similar antioxidant potentials for TiNPs@Ziziphora and butylated hydroxytoluene. Agar diffusion tests were applied to determine the antibacterial and antifungal characteristics. Minimum Inhibitory Concentration (MIC), Minimum Bactericidal Concentration (MBC), and Minimum Fungicidal Concentration (MFC) were specified by macro‐broth dilution assay. The data were analyzed by SPSS 21 software (Duncan post‐hoc test). TiNPs@Ziziphora indicated higher antibacterial and antifungal effects than all standard antibiotics (p ≤ 0.01). Also, TiNPs@Ziziphora inhibited the growth of all bacteria at 2‐16 mg/ml concentrations and removed them at 2‐32 mg/ml concentrations (p ≤ 0.01). In case of antifungal properties of TiNPs@Ziziphora, they prevented the growth of all fungi at 2‐8 mg/ml concentrations and destroyed them at 2‐16 mg/ml concentrations (p ≤ 0.01). In vivo experiment, after creating the cutaneous wound, the rats were randomly divided into six groups: untreated control, treatment with Eucerin basal ointment, treatment with 3% tetracycline ointment, treatment with 0.2% TiO2 ointment, treatment with 0.2% Z. clinopodioides ointment, and treatment with 0.2% TiNPs@Ziziphora ointment. These groups were treated for 10 days. For histopathological and biochemical analysis of the healing trend, a 3 × 3 cm section was prepared from all dermal thicknesses at day 10. Use of TiNPs@Ziziphora ointment in the treatment groups substantially reduced (p ≤ 0.01) the wound area, total cells, neutrophil, and lymphocyte and remarkably raised (p ≤ 0.01) the wound contracture, hydroxyl proline, hexosamine, hexuronic acid, fibrocyte, and fibrocytes/fibroblast rate compared to other groups. In conclusion, the results revealed the useful non‐cytotoxic, antioxidant, antibacterial, antifungal, and cutaneous wound healing effects of TiNPs@Ziziphora. 相似文献
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Soltanolkottabi Fariba Talaie M R Aghamiri Seyedfoad Tangestaninejad Shahram 《Journal of the Iranian Chemical Society》2020,17(1):17-24
Journal of the Iranian Chemical Society - The primary objective of the present work was to investigate the effect of fluid movement on synthesized chromium-benzenedicarboxylate, MIL-101(Cr),... 相似文献
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Robab Alikhani Fariba Bahrami 《Communications in Nonlinear Science & Numerical Simulation》2013,18(8):2007-2017
This paper is devoted to considering the existence and uniqueness results for fuzzy fractional integral equations employing the method of upper and lower solutions. Moreover, the approach is followed to prove the existence of solutions for the fuzzy initial value problem of fractional integrodifferential equations involving Riemann–Liouville differential operators. The method is illustrated by two examples. 相似文献
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