Search results for: LINGUISTIC SEMANTIC NETWORKS - Bridge of Knowledge

Search

Search results for: LINGUISTIC SEMANTIC NETWORKS

Search results for: LINGUISTIC SEMANTIC NETWORKS

  • Optimization of Wireless Networks for Resilience to Adverse Weather Conditions

    Publication
    • M. Pióro
    • E. Fitzgerald
    • I. Kalesnikau
    • D. Nace
    • J. Rak

    - Year 2020

    In this chapter, we consider how adverse weather conditions such as rain or fog affect the performance of wireless networks, and how to optimize these networks so as to make them robust to these conditions. We first show how to analyze the weather conditions in order to make them useful for network optimization modelling. Using an example realistic network, we show how to optimize two types of wireless networks: free-space optical...

    Full text to download in external service

  • Topology recognition and leader election in colored networks

    Publication

    Topology recognition and leader election are fundamental tasks in distributed computing in networks. The first of them requires each node to find a labeled isomorphic copy of the network, while the result of the second one consists in a single node adopting the label 1 (leader), with all other nodes adopting the label 0 and learning a path to the leader. We consider both these problems in networks whose nodes are equipped with...

    Full text available to download

  • CRVG - a new model for wireless networks topology generation

    Publication

    This paper presents a new model of wireless network topology generator. Its main advantage is the possibility of relatively sparse networks generation. Because no iteration is needed, the model can be used for massive generation of networks for testing. The topological properties of produced graphs place them in the class of scale free networks, resembling real ones.

  • The networking of the justice system as part of public court networks

    Publication

    - Year 2015

    The goal of this paper is to look at the organizational structure of the justice system and provide the answer to the basic question of the possible network relations, their force, and imapct. As part od the paper, I have defined public inetrorganisational court network, dividing them into regulatory inter-organisational networks nad voluntary inetrorganisational networks. Emphasis has also been placed on the benefits and threats...

  • Statistical significance of displacements in heterogeneous control networks

    Publication

    - Geodesy and Cartography - Year 2013

    This paper proposes a modification of the classical process for evaluating the statistical significance of displacements in the case of heterogeneous (e.g. linear-angular) control networks established to deformation measurements and analysis. The basis for the proposed solution is the idea of local variance factors. The theoretical discussion was complemented with an example of its application on a simulated horizontal control...

    Full text available to download

  • Electrical and noise responses of carbon nanotube networks enhanced by UV light for nitrogen dioxide sensing

    Open Research Data
    open access

    Networks consisting of randomly oriented carbon nanotubes (CNN) were investigated toward nitrogen dioxide detection by means of electrical and low-frequency noise measurements. UV-activation of CNN layers improved gas sensitivity and reduced the limit of detection, especially by employing 275 nm-LED. This data set includes DC resistance measurements...

  • Olgun Aydin dr

    Olgun Aydin finished his PhD by publishing a thesis about Deep Neural Networks. He works as a Principal Machine Learning Engineer in Nike, and works as Assistant Professor in Gdansk University of Technology in Poland. Dr. Aydin is part of editorial board of "Journal of Artificial Intelligence and Data Science" Dr. Aydin served as Vice-Chairman of Why R? Foundation and is member of Polish Artificial Intelligence Society. Olgun is...

  • Classification of objects in the LIDAR point clouds using Deep Neural Networks based on the PointNet model

    Publication

    This work attempts to meet the challenges associated with the classification of LIDAR point clouds by means of deep learning. In addition to achieving high accuracy, the designed system should allow the classification of point clouds covering an area of several dozen square kilometers within a reasonable time interval. Therefore, it must be characterized by fast processing and efficient use of memory. Thus, the most popular approaches...

    Full text available to download

  • Trust Management Method for Wireless Sensor Networks

    Publication

    - Year 2017

    A Wireless Sensor Network (WSN) is a network of spatially distributed autonomous sensors to monitor physical or environmental conditions, such as temperature, sound, pressure, etc. and to cooperatively pass their data to the main location. The first wireless network that bore any real resemblance to a modern WSN is the Sound Surveillance System (SOSUS), developed by the United States Military in the 1950s to detect and track Soviet...

    Full text available to download

  • Application of wavelength division multiplexing in sensor networks

    Publication

    - Year 2012

    Over the past few years the need to acquire data on various parameters from a number of sensors grew. The need that led to the development of a network of sensors which enables simultaneous control and measurement in a wide range of applications. The aim of this article is to discuss a possibility of connecting a variety of sensors in a network that would utilize WDM technology. Wavelength Division Multiplexing is commonly used...

  • Traffic Remapping Attacks in Ad Hoc Networks

    Publication

    - IEEE COMMUNICATIONS MAGAZINE - Year 2018

    Ad hoc networks rely on the mutual cooperation of stations. As such, they are susceptible to selfish attacks that abuse network mechanisms. Class-based QoS provisioning mechanisms, such as the EDCA function of IEEE 802.11, are particularly prone to traffic remapping attacks, which may bring an attacker better QoS without exposing it to easy detection. Such attacks have been studied in wireless LANs, whereas their impact in multihop...

    Full text available to download

  • Simulated Annealing Based on Linguistic Patterns: Experimental Examination of Properties for Various Types of Logistic Problems

    Publication

    - Year 2018

    Full text to download in external service

  • The impact of institutions on innovation networks: empirical evidence from Poland

    Publication

    - Technological and Economic Development of Economy - Year 2022

    Innovation networks may accelerate and improve the innovation process, while institutional pathologies may hamper it. This study employs the Kruskal-Wallis H test and regression analysis to determine if the relationship between institutions and innovation networks does exist among the investigated variables. The purpose of the study was to find out whether cooperation with special local institutions influences the innovative behaviour...

    Full text available to download

  • Jarosław Sadowski dr hab. inż.

  • Text categorization with semantic commonsense knowledge: First results

    Publication

    - Year 2008

    Do przetwarzania tekstów typowo wykorzystuje się reprezentacjeBOW. Podejście takie nie daje jednak dobrych rezultatów w sytuacjigdy podobne dokumenty nie współdzielą ze sobą słów.W artykule zaprezentowano podejście do konstrukcji funkcjijądra dla klasyfikatorów SVM opartego na zewnętrznej bazie wiedzyo pojęciach językowych.

  • Knowledge representation and acquisition for large-scale semantic memory

    Publication

    - Year 2008

    Pozyskiwanie i reprezentacja pojęć jest koniecznym warunkiem doimplementacji rozumienia w systemach kognitywnych.Gry słowne są dają interesujące możliwości pozyskiwaniawiedzy do komputerowego modelu pamięci semantycznej. W artykuleprzedstawiono podstawy architektury pamięci semantycznej orazwyniki działającego na niej algorytmu wyszukiwania kontekstowego,który użyty został do realizacji gry w 20 pytań.

    Full text to download in external service

  • A Semantic Algebra for Modularized Description Logics Knowledge Bases

    Publication

    Publikacja wprowadza pojęcia modularyzacji ontologii opartej na tzw. modułach semantycznych (s-modułach) oraz algebry s-modułów. W pracy zawarto szereg twierdzeń opisujących właściwości algebry, jej związku z klasą algebr cylindrycznych oraz przedyskutowano możliwości zastosowania prezentowanych idei.

    Full text to download in external service

  • Understanding of Dementia in the Polish Language: A Frame Semantic Approach

    Publication

    - JOURNAL OF ALZHEIMERS DISEASE - Year 2023

    Full text to download in external service

  • Semantic Data Sharing and Presentation in Integrated Knowledge System

    Publication
    • M. Krysiński
    • M. Krystek
    • C. Mazurek
    • J. Pukacki
    • P. Spychała
    • M. Stroiński
    • J. Węglarz

    - Year 2013

    Full text to download in external service

  • Semantic memory knowledge acquisition through active dialogues

    Publication

    - Year 2007

    Szereg zagadnień językowych nie może zostać rozwiązany bez pamięci semantycznej zawierającej opisy cech obiektów, Automatyczne tworzenie tego rodzaju pamięci jest wielkim wyzwaniem nawet dla prostych obszarów dziedzinowych. Implementacja pamięci semantycznej opartej na reprezentacji wiedzy poprzez powiązania obiektu z jego cechami pokazuje ciekawe zastosowania które nie zostały dotychczas zademonstrowane poprzez bardziej wyszukane...

    Full text to download in external service

  • Semantic Driven Table Understanding in Born-Digital Documents

    Publication

    - Year 2014

    This paper presents a new approach to table understanding, suitable for born-digital PDF documents. Advance beyond the current state of the art in table understanding is provided by the proposed reverse MVC method, which takes advantage of only partial logic structure loss (degradation) in born-digital PDF documents, as opposed to unrecoverable loss (deterioration) taking place in scan based PDF documents.

    Full text to download in external service

  • Quantum aspects of semantic analysis and symbolic artificial intelligence.

    Publication

    - Year 2004

    Nowoczesne podejścia do analizy semantycznej, jeśli przeformułować je w język przestrzeni Hilberta, ujawniają formalne struktury znane z mechaniki kwantowej. Podobna sytuacja występuje w rozproszonych reprezentacjach struktur poznawczych rozwijanych na użytek sieci neuronowych. W pracy przyglądamy się różnicom i podobieństwom owych teorii do kwantowej teorii informacji.

    Full text available to download

  • Interdependence between Power Grids and Communication Networks: A Resilience Perspective

    Publication
    • L. Martins
    • R. Girao-Silva
    • L. Jorge
    • A. Gomes
    • F. Musumeci
    • J. Rak

    - Year 2017

    Power network resilience is increasingly dependent on communication networks. Besides traditional generation, power networks need to accommodate increasingly high penetration levels of dispersed micro generation, mostly based on renewable sources, and increasing and challenging demand, such as electric vehicles. At the same time the deployment of enabling technologies throughout the power grid makes available new demand resources...

    Full text to download in external service

  • Traffic Modeling in IMS-based NGN Networks

    In the modern world the need for accurate and quickly delivered information is becoming more and more essential. In order to fulfill these requirements, next generation telecommunication networks should be fast introduced and correctly dimensioned. For this reason proper traffic models must be identified, which is the subject of this paper. In the paper standardization of IMS (IP Multimedia Subsystem) concept and IMS-based NGN...

  • A survey of neural networks usage for intrusion detection systems

    In recent years, advancements in the field of the artificial intelligence (AI) gained a huge momentum due to the worldwide appliance of this technology by the industry. One of the crucial areas of AI are neural networks (NN), which enable commer‐ cial utilization of functionalities previously not accessible by usage of computers. Intrusion detection system (IDS) presents one of the domains in which neural networks are widely tested...

    Full text available to download

  • A METHOD OF TRUST MANAGEMENT IN WIRELESS SENSOR NETWORKS

    The research problem considered in this paper is how to protect wireless sensor networks (WSN) against cyber-threats by applying trust management and how to strengthen network resilience to attacks targeting the trust management mechanism itself. A new method, called WSN Cooperative Trust Management Method (WCT2M), of distributed trust management in multi-layer wireless sensor networks is proposed and its performance is evaluated....

    Full text to download in external service

  • Linguistic Approaches to Bilingualism

    Journals

    ISSN: 1879-9264 , eISSN: 1879-9272

  • Linguistic and Philosophical Investigations

    Journals

    ISSN: 1841-2394

  • Journal of Linguistic Anthropology

    Journals

    ISSN: 1055-1360 , eISSN: 1548-1395

  • Forum for Linguistic Studies

    Journals

    ISSN: 2705-0610 , eISSN: 2705-0602

  • Literary and Linguistic Computing

    Journals

    ISSN: 0268-1145

  • Performance Analysis of Convolutional Neural Networks on Embedded Systems

    Publication

    - Year 2020

    Machine learning is no longer confined to cloud and high-end server systems and has been successfully deployed on devices that are part of Internet of Things. This paper presents the analysis of performance of convolutional neural networks deployed on an ARM microcontroller. Inference time is measured for different core frequencies, with and without DSP instructions and disabled access to cache. Networks use both real-valued and...

    Full text to download in external service

  • A Novel Multicast Architecture of Programmable Networks

    Publication

    - Year 2015

    In the paper a multicast architecture for programmable networks based on separation of group management and network control tasks is proposed. Thanks to this separation, services which want to make use of multicast communications no longer have to implement low-level network functionalities and their operation is greatly simplified. Abstracting service’s view of the network into a fully connected cloud enables us to transparently...

    Full text to download in external service

  • Practical issues for the implementation of survivability and recovery techniques in optical networks

    Publication
    • G. Ellinas
    • D. Papadimitriou
    • J. Rak
    • D. Staessens
    • J. P. Sterbenz
    • K. Walkowiak

    - Optical Switching and Networking - Year 2014

    Failures in optical networks are inevitable. They may occur during work being done for the maintenance of other infrastructures, or on a larger scale as the result of an attack or large-scale disaster. As a result, service availability, an important aspect of Quality of Service (QoS), is often degraded. Appropriate fault recovery techniques are thus crucial to meet the requirements set by the Service Level Agreements (SLAs) between...

    Full text to download in external service

  • Eventual Convergence of the Reputation-Based Algorithm in IoT Sensor Networks

    Publication

    - SENSORS - Year 2021

    Uncertainty in dense heterogeneous IoT sensor networks can be decreased by applying reputation-inspired algorithms, such as the EWMA (Exponentially Weighted Moving Average) algorithm, which is widely used in social networks. Despite its popularity, the eventual convergence of this algorithm for the purpose of IoT networks has not been widely studied, and results of simulations are often taken in lieu of the more rigorous proof....

    Full text available to download

  • Fundamentals of Communication Networks Resilience to Disasters and Massive Disruptions

    Publication
    • J. Rak
    • D. Hutchison
    • J. Tapolcai
    • R. Bruzgiene
    • M. Tornatore
    • C. Mas-Machuca
    • M. Furdek
    • P. Smith

    - Year 2020

    Communication networks are exposed to a variety of massive failure events following from activities of nature, weather-induced disruptions, technology-implied problems, and malicious human activities. In this chapter, we first highlight the characteristics of these scenarios and discuss example failure events reported during the last three decades. Next, we explain the concept of network resilience and present an overview of major...

    Full text to download in external service

  • Grade of service determination methodology in IP networks with SIP protocol

    Although Grade of Service is very important in VoIP providers evaluation, We wasn't able to find any paper regarding the topic of measuring GoS variables for IP networks utilizing SIP, which are defined like for PSTN/ISDN/GSM networks (post-selection delay, answering delay, release delay, or probability of end-to-end blocking). Due to the lack of research in this field, it was necessary to start from defining measures and cover...

  • Polynomial Algorithm for Minimal (1,2)-Dominating Set in Networks

    Publication

    - Electronics - Year 2022

    Dominating sets find application in a variety of networks. A subset of nodes D is a (1,2)-dominating set in a graph G=(V,E) if every node not in D is adjacent to a node in D and is also at most a distance of 2 to another node from D. In networks, (1,2)-dominating sets have a higher fault tolerance and provide a higher reliability of services in case of failure. However, finding such the smallest set is NP-hard. In this paper, we...

    Full text available to download

  • Comparison of centralized and decentralized preemption in MPLS networks

    Publication

    - Year 2007

    Preemption is one of the crucial parts of the traffic engineering in MPLS networks. It enables allocation of high-priority paths even if the bandwidth on the preferred route is exhausted. This is achieved by removing previously allocated low-priority traffic, so as enough free bandwidth becomes available. The preemption can be performed either as a centralized or a decentralized process. In this article we discuss the differences...

  • Results of implementation of Feed Forward Neural Networks for modeling of heat transfer coefficient during flow condensation for low and high values of saturation temperature

    Open Research Data

    This database present results of implementation of Feed Forward Neural Networks for modeling of heat transfer coefficient during flow condensation for low and high values of saturation temperature.  Databse contain one table and 7 figures. 

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

    Publication

    - Year 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,...

    Full text to download in external service

  • A Hyperdense Semantic Domain for Discontinuous Behavior in Physical System Models

    Publication

    - Year 2013

    Multiple time models have been proposed for the formalization of hybrid dynamic system behavior. The superdense notion of time is a well-known time model for describing event-based systems where several events can occur simultaneously. Hyperreals provide a domain for defining the semantics of hybrid models that is elegantly aligned with first principles in physics. This paper discusses the value of both time models and shows how...

  • A Ubiquitous System Using Semantic Knowledge in Dynamic Service Integration

    Publication

  • Routing decisions independent of queuing delays in broadband leo networks

    Publication

    - Year 2009

    This paper presents an analysis of queuing and propagation delays of Inter-Satellite Links (ISLs) in broadband Low-Earth Orbit (LEO) satellite networks. It is shown that queuing delays are negligible in all reasonable working conditions of the broadband ISL network. This fact makes it possible to simplify the routing protocols in such networks and permits using already known multi-commodity flow solutions for routing. The performance...

    Full text to download in external service

  • Network lifetime maximization in wireless mesh networks for machine-to-machine communication

    Publication

    - Ad Hoc Networks - Year 2019

    Full text to download in external service

  • Disaster Resilience of Optical Networks: State of the Art, Challenges, and Opportunities

    Publication
    • J. Rak
    • R. Girão-Silva
    • T. Gomes
    • G. Ellinas
    • B. Kantarci
    • M. Tornatore

    - Optical Switching and Networking - Year 2021

    For several decades, optical networks, due to their high capacity and long-distance transmission range, have been used as the major communication technology to serve network traffic, especially in the core and metro segments of communication networks. Unfortunately, our society has often experienced how the correct functioning of these critical infrastructures can be substantially hindered by massive failures triggered by natural...

    Full text available to download

  • Enhancing Resilience of FSO Networks to Adverse Weather Conditions

    Publication

    - IEEE Access - Year 2021

    Optical wireless networks realized by means of gigabit optical wireless communication (OWC) systems are becoming, in a variety of applications, an important alternative, or a complementary solution, to their fiber-based counterparts. However, performance of the OWC systems can be considerably degraded in periods of unfavorable weather conditions, such as heavy fog, which temporarily reduce the effective capacity of the network....

    Full text available to download

  • Disaster-resilient communication networks: Principles and best practices

    Publication
    • A. Mauthe
    • D. Hutchison
    • E. Cetinkaya
    • I. Ganchev
    • J. Rak
    • J. P. Sterbenz
    • M. Gunkelk
    • P. Smith
    • T. Gomes

    - Year 2016

    Communication network failures that are caused by disasters, such as hurricanes, arthquakes and cyber-attacks, can have significant economic and societal impact. To address this problem, the research community has been investigating approaches to network resilience for several years. However, aside from well-established techniques, many of these solutions have not found their way into operational...

    Full text to download in external service

  • A Survey of Fast-Recovery Mechanisms in Packet-Switched Networks

    Publication
    • M. Chiesa
    • A. Kamisinski
    • J. Rak
    • G. Retvari
    • S. Schmid

    - IEEE Communications Surveys and Tutorials - Year 2021

    In order to meet their stringent dependability requirements, most modern packet-switched communication networks support fast-recovery mechanisms in the data plane. While reactions to failures in the data plane can be significantly faster compared to control plane mechanisms, implementing fast recovery in the data plane is challenging, and has recently received much attention in the literature. This survey presents a systematic,...

    Full text available to download

  • Performance Evaluation of Preemption Algorithms in MPLS Networks

    Preemption is a traffic engineering technique in Multiprotocol Switching Networks that enables creation of high priority paths when there is not enough free bandwidth left on the route. Challenging part of any preemption method is to select the best set of paths for removal. Several heuristic methods are available but no wider comparison had been published before. In this paper, we discuss the dilemmas in implementing preemption...

    Full text available to download