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Wyniki wyszukiwania dla: autonomiczne agenty

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Wyniki wyszukiwania dla: autonomiczne agenty

  • APIS – Agent Platform for Integration of Services

    The paper presents an approach to creating the platform for development and evaluation of complex tasks execution algorithms. Proposed solution is based on an agent paradigm where independent peers can cooperate and negotiate in order to execute specified tasks which are defined only by the final output description. Tasks are realized by the means of services exposed by different peers. In case when there is no single service fulfilling...

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  • Anonymity Architecture for Mobile Agent Systems

    Publikacja

    - Rok 2007

    The paper presents a new security architecture for MAS, which supports anonymity of agent owners. The architecture is composed of two main elements: Module I: Untraceability Protocol Infrastructure and Module II: Additional Untraceability Support. Module I is based on the recently proposed untraceability protocol for MAS and it forms the core of the anonymity architecture, which can be supported by the ele- ments of the second...

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  • MAlSim - Mobile Agent Malware Simulator

    Publikacja

    - Rok 2008

    One of the problems related to the simulation of attacks against critical infrastructures is the lack of adequate tools for the simulation of malicious software (malware). Malware attacks are the most frequent in the Internet and they pose a serious threat against critical networked infrastructures. To address this issue we developed Mobile Agent Malware Simulator (MAISim). The framework uses the technology of mobile agents and...

  • Decontaminating Arbitrary Graphs by Mobile Agents: a Survey

    Publikacja

    A team of mobile agents starting from homebases need to visit and clean all nodes of the network. The goal is to find a strategy, which would be optimal in the sense of the number of needed entities, the number of moves performed by them or the completion time of the strategy. Currently, the field of distributed graph searching by a team of mobile agents is rapidly expanding and many new approaches and models are being presented...

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  • Pronouncement of embedded agency in the field of social entrepreneurship

    Publikacja

    The paper provides insights into how social entrepreneurship and the institutional theory framework can be combined. The author situates the social entrepreneurship phenomenon here, and embarks on the traditional structure vs agency debate from social sciences, sociology of organizations in particular. The concept of embedded agency is referred to and employed to explain the phenomenon of social entrepreneurship. In this paper,...

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  • Essential oils as potential anti-staphylococcal agents

    Publikacja

    - ACTA VETERINARIA-BEOGRAD - Rok 2018

    Antibiotic therapy of staphylococcal mastitis is characterized by significantly lower cure rates compared to infections caused by other microorganisms. Thus, it is necessary to search for new, alternative, non-antibiotic agents that are effective in the eradication of these bacteria. The aim of our research was to investigate the antimicrobial, especially anti-staphylococcal potential of a large collection (n=36) of essential oils...

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  • Silylation of acetaminophen by trifluoroacetamide-based silylation agents

    Publikacja

    - Journal of Pharmaceutical and Biomedical Analysis - Rok 2018

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  • Amino Acid and Peptide‐Based Antiviral Agents

    A significant number of antiviral agents used in clinical practice are amino acids, short peptides, or peptidomimetics. Among them, several HIV protease inhibitors (e. g. lopinavir, atazanavir), HCV protease inhibitors (e. g. grazoprevir, glecaprevir), and HCV NS5A protein inhibitors have contributed to a significant decrease in mortality from AIDS and hepatitis. However, there is an ongoing need for the discovery of new antiviral...

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  • Inhibitors of amino acids biosynthesis as antifungal agents

    Publikacja

    Fungal microorganisms, including the human pathogenic yeast and filamentous fungi, are able to synthesize all proteinogenic amino acids, including nine that are essential for humans. A number of enzymes catalyzing particular steps of human-essential amino acid biosynthesis are fungi specific. Numerous studies have shown that auxotrophic mutants of human pathogenic fungi impaired in biosynthesis of particular amino acids exhibit...

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  • A Prototype of Educational Agent in Distance Learning Environment - Virtual Student Assistant

    W zdalnym nauczaniu pojawia się wiele systemów wspierających, z których niezwykle ciekawym przykładem są agenty edukacyjne. Wśród wielu rodzajów agentów edukacyjnych wyróżnia się osobistych asystentów, których rolą jest organizacyjna pomoc osobie zdobywającej wiedzę. Artykuł jest poświęcony zaimplementowanemu na Wydziale ETI Politechniki Gdańskiej prototypowi agenta edukacyjnego o nazwie WAS (Wirtualny Asystent Studenta). Pokazana...

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  • JamesBot - an intelligent agent playing StarCraft II

    Publikacja

    The most popular method for optimizing a certain strategy based on a reward is Reinforcement Learning (RL). Lately, a big challenge for this technique are computer games such as StarCraft II which is a real-time strategy game, created by Blizzard. The main idea of this game is to fight between agents and control objects on the battlefield in order to defeat the enemy. This work concerns creating an autonomous bot using reinforced...

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  • Multi-agent graph searching and exploration algorithms

    Publikacja

    - Rok 2020

    A team of mobile entities, which we refer to as agents or searchers interchangeably, starting from homebases needs to complete a given task in a graph.The goal is to build a strategy, which allows agents to accomplish their task. We analyze strategies for their effectiveness (e.g., the number of used agents, the total number of performed moves by the agents or the completion time).Currently, the fields of on-line (i.e., agents...

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  • An Approach to Agent-Based Supporting System for IT Projects

    Publikacja

    Abstract. The natural development of information technology area stimulates intense growth of various technologies which support basic organization processes. The range of technologies implies appropriate management thereof, as well as accurate correspondence with conducted activities. Abandonment of activities within individual branches in favour of project approach to performed assignments (especially those connected with software...

  • Ontology management in the multi-agent system for the it evaluation

    Publikacja

    The team of researchers at the Gdańsk University of Technology is currently developing a model of the multi-agent system (MAS_IT) that would aid the IT managers to find the most appropriate technology to the goals assumed. The knowledge is to be provided by experts and stored in the facts and rules bases. The responsibility of the verification process-on the input and query stages-is given to the ontology, making it to some extend...

  • Verification of agent system for it project management support

    Publikacja

    This article is a continuation of article series telling about research about possibility of using agent system to information technology evaluation. Following article presents full conception of exploiting agent system and shows how it can support some managers works, especially in taking correct management method and information tool for project management. In this article the agent system that based on knowledge and can process...

  • Distributed Data Reduction through Agent Collaboration

    Publikacja

    - Rok 2009

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  • AGENT-BASED APPROACH TO THE DESIGN OF RBF NETWORKS

    Publikacja

    - CYBERNETICS AND SYSTEMS - Rok 2013

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  • Agent-Based Non-distributed and Distributed Clustering

    Publikacja

    - Rok 2009

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  • Concept of the agent system for the information technology evaluation

    Publikacja

    In this paper the concept of the agent system for the information technology evaluation has been presented. This article includes the concept description and shows abilities of using software tools which can be applicable to implementation and verification of proposed solution. The article is the part of common researches over creation solutions for information technology evaluation which range over using expert's evaluation and...

  • Advanced Agent Identification With Fluctuation-Enhanced Sensing

    Publikacja
    • C. Kwan
    • G. Schmera
    • J. Smulko
    • L. B. Kish
    • P. Heszler
    • C. G. Granqvist

    - IEEE SENSORS JOURNAL - Rok 2008

    Praca przedstawia wyniki szeregu zaawansowanych algorytmów przetwarzania sygnałów losowych obserwowanych w sensorach gazu typu Taguchi Gas Sensors. Stwierdzono, że proponowane metody pozwalają wykrywać bardziej efektywnie obecność wielu różnych gazów. W celu detekcji zastosowano głównie funkcje spektrum i bispektrum.

  • Critical section maintenance in a distributed agent system

    Publikacja

    - Rok 2012

  • Business processes implementation using agent systems

    Publikacja

    - Rok 2012

    This paper will show that some complex and repetitive actions performed in a company can be modelled for the sake of optimization and automaton. It is achieved by connecting business processes management and agent paradigms. Moreover it shows that organization structure can be mapped to distributed multi agent system. Finally it states that interorganization communication can be automated on the same basis as intra-organization...

  • Gossiping by energy-constrained mobile agents in tree networks

    Publikacja

    - THEORETICAL COMPUTER SCIENCE - Rok 2021

    Every node of an edge-weighted tree network contains a data packet. At some nodes are placed mobile agents, each one possessing an amount of energy (not necessarily the same for all agents). While walking along the network, the agents spend the energy proportionally to the distance traveled and collect copies of the data packets present at the visited network nodes. An agent visiting a node deposits there copies of all currently...

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  • Mobile chromatographs and spectrometers for the analysis of chemical warfare agents

    Publikacja

    - Rok 2020

    This article describes the technological state of readiness regarding mobile chromatographs and spectrometers and their appiicability for the analysis of chemical warfare agents (CWAs), degradation products, simulants, and precursors.

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  • Application of Intelligent Conversational Agents in E-learing Environments

    Publikacja

    - Rok 2010

    The paper concerns intelligent tutoring systems and concentrates on apliaction of virtual mentors in distance learning environments. Different educational agent types are described. The prototype of an agent developed at Gdansk University of Technology is also presented, as well as its internal representation and construction. Benefits of virtual mentors applied in distance learning are also pointed out.

  • The role and construction of educational agents in distance learning environments

    Publikacja

    - Rok 2008

    Artykuł przedstawia definicję oraz klasyfikację agentów edukacyjnych. Wskazuje typowe cele i zadania agentów, a także omawia schemat ich budowy i funkcjonowania. Wskazano także różnorodność możliwości, jakie stwarzają różne rodzaje agentów w procesie nauczania. W artykule opisano także wytworzony w ramach badań prototyp agenta WAS, którego zadaniem jest wspomaganie uczniów w zakresie pracy z materiałami edukacyjnymi.

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  • Agents in Simulation of Cyberattacks to Evaluate Security of Critical Infrastructures

    Publikacja

    - Rok 2013

    In the last years critical infrastructures have become highly dependent on the information technologies and exposed to cyberattacks. Because the effects of the attacks can be detrimental, it is crucial to comprehensively asses the security of the infrastructures' information systems. This chapter describes MAlSim - the simulator of malicious software based on software agents, developed for the needs of a testbed for critical infrastructures...

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  • Leader election for anonymous asynchronous agents in arbitrary networks

    Publikacja

    - DISTRIBUTED COMPUTING - Rok 2014

    We consider the problem of leader election among mobile agents operating in an arbitrary network modeled as an undirected graph. Nodes of the network are unlabeled and all agents are identical. Hence the only way to elect a leader among agents is by exploiting asymmetries in their initial positions in the graph. Agents do not know the graph or their positions in it, hence they must gain this knowledge by navigating in the graph...

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  • Integracja inteligentnego agenta diagnostycznego z systemami CRM.

    Publikacja

    - Rok 2003

    W artykule zawarto propozycję integracji inteligentnych agentów diagnostycznych z systemami CRM zarządzania przedsiębiorstwem, w szczególności z podsystemem zarządzania zasobami informatycznymi.

  • Neural network agents trained by declarative programming tutors

    Publikacja

    This paper presents an experimental study on the development of a neural network-based agent, trained using data generated using declarative programming. The focus of the study is the application of various agents to solve the classic logic task – The Wumpus World. The paper evaluates the effectiveness of neural-based agents across different map configurations, offering a comparative analysis to underline the strengths and limitations...

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  • Synthesis of S-thioacyl dithiophosphates, efficient and chemoselectivethioacylating agents

    Łatwo dostępne ditiofosforany acylu izomeryzują do monotiofosforanów O- iS-tioacylu. Reakcja jest odwracalna, więc ogrzewanie ditiofosforanów acylu prowadzi zazwyczaj do powstania mieszaniny izomerycznych bezwodników, która nie może być wykorzystana do wydajnego tioacylowania. Jednak działaniem kwasu ditiofosforowego na mieszaninę izomerycznych bezwodników można wydajnie otrzymać ditiofosforany tioacylu. Związki te to doskonałe...

  • Amino Acid Based Antimicrobial Agents – Synthesis and Properties

    Structures of several dozen of known antibacterial, antifungal or antiprotozoal agents are based on the amino acid scaffold. In most of them, the amino acid skeleton is of a crucial importance for their antimicrobial activity, since very often they are structural analogs of amino acid intermediates of different microbial biosynthetic pathways. Particularly, some aminophosphonate or aminoboronate analogs of protein amino acids are...

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  • Rendezvous of Distance-Aware Mobile Agents in Unknown Graphs

    Publikacja

    - Rok 2014

    We study the problem of rendezvous of two mobile agents starting at distinct locations in an unknown graph. The agents have distinct labels and walk in synchronous steps. However the graph is unlabelled and the agents have no means of marking the nodes of the graph and cannot communicate with or see each other until they meet at a node. When the graph is very large we want the time to rendezvous to be independent of the graph size...

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  • Rendezvous of Heterogeneous Mobile Agents in Edge-Weighted Networks

    Publikacja

    - Rok 2014

    We introduce a variant of the deterministic rendezvous problem for a pair of heterogeneous agents operating in an undirected graph, which differ in the time they require to traverse particular edges of the graph. Each agent knows the complete topology of the graph and the initial positions of both agents. The agent also knows its own traversal times for all of the edges of the graph, but is unaware of the corresponding traversal...

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  • Arsenic-Based Warfare Agents: Production, Use, and Destruction

    Publikacja

    Since the beginning of time, civilizations have looked for more creative ways to dominate and defeat their enemies. The rapid development of the chemical industry just before the Second World War started the era of modern chemical weapon production based on poisons, including toxic arsenic compounds. This paper provides a detailed overview of the production, usage and destruction of this dangerous chemical weapon. Milestones include:...

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  • Rendezvous of heterogeneous mobile agents in edge-weighted networks

    We introduce a variant of the deterministic rendezvous problem for a pair of heterogeneous agents operating in an undirected graph, which differ in the time they require to traverse particular edges of the graph. Each agent knows the complete topology of the graph and the initial positions of both agents. The agent also knows its own traversal times for all of the edges of the graph, but is unaware of the corresponding traversal...

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  • A multi-agent method for periodicity detection in distributed events

    Publikacja

    - Rok 2015

    Multi-agent systems working in constantly changing environments may be challenged by instantaneous unavailability of their autonomous agents caused e.g. by limited computing resources. A new method of self-organization of distributed service components is proposed, suitable for multi-agent systems. This method relies on particular agents carrying out separate analyzes of their individual processing loads or other specific events....

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  • Agent System for Managing Distributed Mobile Interactive Documents

    The MIND architecture of distributed mobile interactive document is a new processing model defined for facilitate informed decision-making in non-algorithmic decision-making processes carried out by knowledge-based organizations. The aim of this architecture is to change the static document to mobile agents, which are designed to implement the structure of the organization through autonomous migration between knowledge workers...

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  • Evolution of concept of agent system for information technology evaluation

    Publikacja

  • An Agent-Based Simulated Annealing Algorithm for Data Reduction

    Publikacja

    - Rok 2010

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  • Agent-Based Data Reduction Using Ensemble Technique

    Publikacja

    - Rok 2013

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  • Safe-Guarded Agent Design Pattern for Mechatronic Systems

    Publikacja

    - IFAC Proceedings Volumes - Rok 2010

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  • OROMACS: A Design Framework for Multi-agent Control System

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  • Agent-based social network as a simulation of a market behaviour

    Publikacja

    - Rok 2010

    Recent years and the outbreak of world's economic crisis in 2008 proved the crucial importance of reliable analysis of market dynamics. However, werarely apply models of proper detail level (the global prosperity forecast of 2007 can be seen as a grim proof). The behaviour of individuals and companies is far from being ideal and rational. Many claims that the economic paradigm of rational expectations (coming from J. Muth and R....

  • Project Team Management Supported by an Agent-Based Model

    Publikacja

    This work is a continuation of a series of works about research into the use of multi-agent systems to support IT project management. Previous studies have shown the possibility of using a multi-agent in order to optimize management decisions concerning the selection of methods for project implementation. It was noted that the project manager's decisions are influenced by three fundamental parameters: the entropy of the project,...

  • Dissociative electron attachment to the radiosensitizing chemotherapeutic agent hydroxyurea

    Publikacja

    - JOURNAL OF CHEMICAL PHYSICS - Rok 2016

    Dissociative electron attachment to hydroxyurea was studied in the gas phase for electron energies ranging from zero to 9 eV in order to probe its radiosensitizing capabilities. The experiments were carried out using a hemispherical electron monochromator coupled with a quadrupole mass spectrometer. Diversified fragmentation of hydroxyurea was observed upon low energy electron attachment and here we highlight the major dissociation...

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  • Cancer-selective, single agent chemoradiosensitising gold nanoparticles

    Publikacja
    • S. Grellet
    • K. Tzelepi
    • M. Roskamp
    • P. Williams
    • A. Sharif
    • R. Slade-Carter
    • P. Goldie
    • N. Whilde
    • M. Śmiałek-Telega
    • N. J. Mason
    • J. Golding

    - PLOS ONE - Rok 2017

    Two nanometre gold nanoparticles (AuNPs), bearing sugar moieties and/or thiol-polyethylene glycol-amine (PEG-amine), were synthesised and evaluated for their in vitro toxicity and ability to radiosensitise cells with 220 kV and 6 MV X-rays, using four cell lines representing normal and cancerous skin and breast tissues. Acute 3 h exposure of cells to AuNPs, bearing PEG-amine only or a 50:50 ratio of alpha-galactose derivative and...

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  • Multi-agent large-scale parallel crowd simulation

    Publikacja

    - Rok 2017

    This paper presents design, implementation and performance results of a new modular, parallel, agent-based and large scale crowd simulation environment. A parallel application, implemented with C and MPI, was implemented and run in this parallel environment for simulation and visualization of an evacuation scenario at Gdansk University of Technology, Poland and further in the area of districts of Gdansk. The application uses a...

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  • Fluctuation-Enhanced Sensing for Biological Agent Detection and Identification

    Publikacja
    • L. B. Kish
    • H. Chang
    • C. Kwan
    • J. Jensen
    • G. Schmera
    • J. Smulko
    • Z. Gingl
    • C. G. Granqvist

    - IEEE TRANSACTIONS ON NANOTECHNOLOGY - Rok 2011

    Przedstawiono wcześniejsze wyniki badań dotyczące trzech różnych sposobów wykrywania obecności substancji biologicznych za pomocą zjawisk fluktuacyjnych: 1) wirusów wnikających do komórek, 2) zapachów emitowanych przez mikroby, 3) rozkładu widma i wartości chwilowych szumów podczas rozpraszania światła używanego do wykrywania zarodników na podstawie wyznaczenia współczynnika dyfuzji opisująceo ich ruch.We survey and show our earlier...

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  • A Review of Traffic Analysis Attacks and Countermeasures in Mobile Agents' Networks

    Publikacja

    - Rok 2021

    For traditional, message-based communication, traffic analysis has been already studied for over three decades and during that time various attacks have been recognised. As far as mobile agents’ networks are concerned only a few, specific-scope studies have been conducted. This leaves a gap that needs to be addressed as nowadays, in the era of Big Data, the Internet of Things, Smart Infrastructures and growing concerns for privacy,...

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