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About 10,000 papers for “Asynchronous communication”

Asynchronous Communication

Raffael Dzikowski, Andre Moelle Wolfgang · 2015

Abstract Asynchronous communication, i.e., processes sending and receiving in-formation along buffers, is a fundamental computation paradigm. Is is widely em-ployed when large systems are to be designed, and it provides a basis for the fundamental software architecture of service-oriented computing. This contribution suggests a generic model for this paradigm, in analogy to what process algebras provide for synchronous communication. We substantiate the genericity of the model by: – a technically simple notion of composition – the compatibility of composition and simulation – a systematic view on classes of partners of a process that assert particular properties.

Cited by 0

Asynchronous Communication

Fabrizio Montesi · Cambridge University Press eBooks · 2023

Communication in the languages presented so far is synchronous: a sending action blocks the sender until it can interact with a compatible receiving action at the intended receiver. In this chapter, we consider an alternative semantics for interactions: asynchronous communication. Asynchronous communication allows for a sending action to be executed without waiting for the receiver to be ready by storing the sent message in a message queue that the intended receiver can later read.

Cited by 0

Asynchronous Communication

Jon Dron · IGI Global eBooks · 2007

This book offers an exploration of the ways that a learning trajectory is determined, and, in particular, how an online learning environment can affect that trajectory. It provides suggestions about how, primarily through technologies that underlie what is vulgarly known as “Web 2.0,” networked learning environments should be constructed to give control to learners if they need it, as they need it, and when they need it.

Cited by 1

Scaffolding asynchronous communication

Richard Collecutt · Unitec Research Bank (Unitec Institute of Technology) · 2008

This research identifies and studies the techniques and strategies used by New Zealand tertiary tutors in the process of encouraging participation, and ultimately learning, when using online asynchronous discussion forums. The last decade has seen considerable growth in online learning and the discussion forum now features as a mainstream teaching tool in both fully online courses and in blended delivery. Of interest are the strategies tutors use in online discussion forums: exactly how do tutors encourage an online class to participate and engage in meaningful discourse in a textual asynchronous communication medium?
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\nTwelve New Zealand tertiary tutors were interviewed in a semi-structured manner, gathering both demographic data and data from open-ended questions. The openended questions were designed to ascertain the tutors’ perceptions about the pedagogical considerations of online learning, the barriers students may face and the techniques the tutors use to compensate for these barriers. The results were analysed
\nusing qualitative methods, summarised and discussed.
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\nThe study shows that a number of the tutors interviewed used a range of strategies across both the affective and cognitive domains, and these tutors were aware of which barriers their strategies are targeting. Where a narrow selection of strategies was used it was apparent that some of the barriers to participation were not being addressed.

Cited by 0Open access

Asynchronous Byzantine group communication

Klaus Kursawe · 2003

This paper summarizes our work on group communication in a fully asynchronous Byzantine environment. Instead of failure detectors or timing information, our protocols use randomization to circumvent the impossibility result by Fischer, Lynch and Paterson. This is the first time this technique is used for a real system; thanks to modern cryptography, our protocols are practical and fast enough to be used in practice. To cleanly combine cryptography with fault tolerance, a new model had to be developed that might be of independent interest.

Cited by 5

Communication-closed asynchronous protocols

Andrei Damian, Cezara Drăgoi, Alexandru Militaru et al. · SPIRE - Sciences Po Institutional REpository · 2019

Fault-tolerant distributed systems are implemented over asyn-chronous networks, so that they use algorithms for asynchronous models with faults. Due to asynchronous communication and the occurrence of faults (e.g., process crashes or the network dropping messages) the implementations are hard to understand and analyze. In contrast, synchronous computation models simplify design and reasoning. In this paper, we bridge the gap between these two worlds. For a class of asynchronous protocols, we introduce a procedure that, given an asynchronous protocol , soundly computes its round-based synchronous counterpart. This class is defined by properties of the sequential code. We computed the synchronous counterpart of known consensus and leader election protocols, such as, Paxos, and Chandra and Toueg's consensus. Using Verifast we checked the sequential properties required by the rewriting. We verified the round-based synchronous counterpart of Multi-Paxos, and other algorithms, using existing deductive verification methods for synchronous protocols.

Cited by 0

Asynchronous communication between threads

2005

In programming there is sometimes a need to make computation interruptible by external events. This paper argues that a dedicated language mechanism solves this need better than a pure library convention. The main issue in designing such a mechanism is specifying points of computation where it’s safe to interrupt a thread in order to execute a signal handler. The paper proposes rules for identifying such points, rules which are especially suited for impure functional languages. The proposed mechanism of asynchronous signals happens to be useful for specifying how threads should interact with Unixfork(). 1

Cited by 0

Transparent, asynchronous, efficient communication

Menard, Lauryn · TIB KMO / FLOWWORKS GmbH · 2023

Building an open-source community with hundreds of people from all over the world who come together to develop highly complex software systems or collaborate on cutting-edge research is no easy task. It requires communication tools that support transparency in decision making, asynchronous collaboration, and efficient use of community members’ time. We know there are key (and overlapping) groups of people who make up a vibrant community: project leaders, core and casual contributors, new and experienced folks, and end users. Looking at these categories, we can define shared and specific communication needs for working and collaborating together. Zulip has made key design choices and invested in developing many features to address these particular needs. Let's dive in and explore together the unique characteristics of Zulip and how they can (and have) impacted collaboration and communication in FOSS and research communities.

Cited by 0Open access

Keyless asynchronous covert communication

Keerthi Suria Kumar Arumugam, Matthieu R. Bloch · 2016

We consider a scenario in which Alice asynchronously communicates with Bob over a Discrete Memoryless Channel (DMC) while escaping detection from an adversary who observes their communication through another DMC. Specifically, Alice transmits codewords of length n and chooses the transmission epoch T uniformly at random among N available time epochs, where N ≫ n. This deliberate symbol level-asynchronism forces the adversary to monitor a window of size N' much larger than the codeword length n, and results in an increased covert throughput compared to the scenario without asynchronism. Our result generalizes a previous work in which asynchronism was introduced at the codeword level, i.e., having Alice choose a transmission window among non-overlapping windows of length n.

Cited by 23

Asynchronous communication in Ada

Kenneth Elsom · ACM SIGAda Ada Letters · 1989

The current definition of Ada manifestly fails to satisfy the requirements for supporting the application domain characteristics of real-time, embedded and distributed systems particularly with respect to the capability for asynchronous message passing. It is shown that, for a number of independent reasons, the potential for allowing Ada tasks to communicate in this manner by extension of the existing purely synchronous rendezvous has significant benefits. Though this is a radical deviation from the existing language definition a firm proposal is made for allowing asynchronous inter-task communication. Some of the resultant semantic and syntactic implications are explored.

Cited by 2Open access

Asynchronous communication interfaces in FPGA

Cabal, Jakub · Brno University of Technology Digital Library (Brno University of Technology) · 2015

Cílem této práce je provést rozbor a implementaci jednotek pro řešení asynchronních přechodů v obvodech FPGA. Tyto přechody jsou nevyhnutelné ve složitějších obvodových návrzích a jejich nesprávná implementace může vést ke ztrátě nebo poškození dat. Dále se práce zaměřuje na aplikování správných omezujících podmínek (constraints). V praktické části této práce je popsána realizovaná knihovna asynchronních přechodů. Dále praktická část práce popisuje vytvořenou metodiku použití asynchronních přechodů, jejíž uplatnění je demonstrováno na případové studii v obvodu síťové karty vytvořeném pro akceleračníkartu COMBO-80G.

Cited by 0

Asynchronous communication in critical thinking

Ximena Cumandá Miranda, Judith del Carmen Núñez Ramírez, Marcelo Wilfrido Núñez Espinoza et al. · Medwave · 2023

Introducción A partir de la Pandemia, el sistema educativo del mundo experimentó un cambio, de la presencialidad a la virtualidad, los docentes y estudiantes tuvieron que realizar adaptaciones curriculares y estrategias activas para reemplazar el contacto diario con los escolares, por lo que este estudio de investigación se enfocó en el desarrollo del pensamiento crítico mediante el uso de habilidades de comunicación asincrónica en los estudiantes de segundo BGU de la Unidad Educativa Particular “González Suárez” del cantón Ambato”. Objetivos Determinar cómo las habilidades de comunicación asincrónicas inciden en el desarrollo del pensamiento crítico de los estudiantes de segundo BGU de la Unidad Educativa Particular “Gonzales Suarez” del cantón Ambato” Método Esta investigación se desarrolló con un enfoque cuantitativo debido a que se aplicó la Prueba para pensamiento crítico el cual arrojo datos en base a las preguntas establecidas donde se encontró el nivel de pensamiento crítico que tienen los estudiantes de Segundo de bachillerato de la, mediante los datos obtenidos se utilizó un software estadístico que permitió procesar la información receptada. La investigación cualitativa requiere de la recopilación de información en base a las preguntas de la encuesta planteada, que a su vez genera nuevas preguntas en el transcurso de la recepción de datos. (Hernández et al., 2014), Descriptiva, porque describió las características de la población o estimar parámetros a partir de una muestra, también es Correlacional, ya l por que busca encontrar cual es la relación entre las dos variables que son las habilidades de comunicación asincrónica y el pensamiento crítico para evidenciar cual es influencia de la primera en el desarrollo de la segunda. Principales resultados Los resultados obtenidos a través del trabajo de investigación realizado con los estudiantes de segundo BGU de la Unidad Educativa Particular “Gonzales Suarez” se puede afirmar que las habilidades de comunicación asincrónica SI influye en el desarrollo del pensamiento crítico de los estudiantes este proceso se realizó a través de la recolección y análisis de datos en base a las variables de estudio, a través de la aplicación del estadígrafo de correlación de Pearson, se rechaza la hipótesis nula y se acepta la hipótesis alterna, ya que el valor obtenido es mayor que la t de la tabla, como se evidencia: 48,756 > 2.48. Conclusiones Se determinó la influencia de las habilidades de comunicación asincrónica en el desarrollo del pensamiento crítico en los estudiantes de segundo BGU de la Unidad Educativa Particular “Gonzales Suarez”, este proceso se realizó a través de la recolección y análisis de datos en base a las variables de estudio. Se identificó el nivel de pensamiento crítico de los estudiantes mediante un cuestionario validado. La información recogida fue cuantificada de manera grupal por cada una de las preguntas, misma que da como resultado que la mayor parte de estudiantes han desarrollado el pensamiento crítico de manera favorable lo cual se ve representado en el análisis estadístico.

Cited by 0Open access