A group of neurons that have a specific function and are processed as a whole. The most common example is in a feedforward network that has an input layer, an output layer and one or more hidden layers.
In the Open System Interconnection reference model, refers to a collection of related network-processing functions that constitute one level of a hierarchy of functions.
A set of structures and routines that handle a particular class of events. For example, in the seven-layer International Organization of Standardization's open systems interconnection model, the network layer is responsible for routing the signals to their intended recipients.
Once upon a time, the International Organization for Standardization (ISO) designed an Open Systems Interconnection (OSI) Reference Model for all network developers on our planet. The seven "layers" of the OSI model are: · physical: electrical and mechanical functions; · data link: detecting and correcting errors; · network: routing processes; · transport: initiating and releasing connections; · session: handling transmission errors: · presentation: formatting data; and · application: interface with network services.
A subdivision of the OSI architecture (See OSI Reference Model).
(1) Related processes, activities or information that constitute one level in a hierarchy or network platform. (2) Related communications-processing functions that comprise one level in a hierarchy of functions within the OSI reference model.
an association or a collection of objects completely independent of any group hierarchy in your model
A group of neurons which share a functional feature. Most of the human cortex is made of many layers of neurons. In each layer, the neurons are densely interconnected. A neural network consists of neuron layers which are interconnected. The manner in which the neurons interconnect determines the type of processing that will occur. (See feedback and feed forward networks). Neurons are located in one of three types of places: the input layer, the output layer, or the hidden layers. The input neurons receive data from the outside world. The output neurons send information out to us, or to something else. The hidden neurons are all the neurons in between. We do not see their inputs and outputs because they connect only to other neurons.
In the Open Systems Interconnection (OSI) reference model, a layer is a collection of related network-processing functions that constitute one level of a hierarchy of functions. See OSI.
Description of divisions in specifications Such as OSI and SNA communications protocols. Functions are grouped together that comprise one step in the hierarchy necessary for successful data communications.
Communication networks for computers may be organized as a set of more or less independent protocols, each in a different layer (also called level). The lowest layer governs direct host-to-host communication between the hardware at different hosts; the highest consists of user applications. Each layer builds on the layer beneath it. For each layer, programs at different hosts use protocols appropriate to the layer to communicate with each other. TCP/IP has five layers of protocols; OSI has seven. The advantages of different layers of protocols is that the methods of passing information from one layer to another are specified clearly as part of the protocol suite, and changes within a protocol layer are prevented from affecting the other layers. This greatly simplifies the task of designing and maintaining communication programs. See also: Open Systems Interconnection, TCP/IP Protocol Suite.
A protocol that interacts with other protocols as part of an overall transmission system.
In networks, layers refer to software protocol levels comprising the architecture, with each layer performing functions for the layers above it.
A protocol operating at a certain level within a protocol suite (e.g.: IP within the TCP/IP suite). Data is passed from one level to the next, and each level (layer) has a specific function.
In the OSI seven-layer protocol model, a level of digital communication. Each layer generally has one or more protocols associated with it. Communication networks for computers can be organized as a set of independent protocols, each in a different layer (or level). The lowest layer governs direct host-to-host communication between the hardware at different hosts; the highest layer consists of user applications. For each layer, programs at different hosts use protocols appropriate to the layer to communicate with each other. See also ACU stack mode, data link layer, end-to-end layers, LAPD stack mode, Channelized stack mode, network layer, physical layer.
In the OSI network reference model, each layer performs a certain task to move the data from the sender to the receiver.
OSI reference model. Each layer performs certain tasks to move the information from the sender to the receiver. Protocols within the layers define the tasks for the networks.
this terminology comes from the OSI specification. It divides any communicating system into 7 layers, each having a different functionality. Layer 1 is the physical layer, and layer 2 is the link layer. IP could be assimilated as layer 3 (network layer), and TCP as layer 4 (transport layer).
A logically distinct level in network architecture. Communication networks are organized as a set of more or less independent protocols, each in a different layer; the lowest layer governs direct host-to-host communication between hardware at different hosts, and the highest layer consists of user applications. Each layer builds on the layer beneath it using protocols appropriate to the layer. TCP/IP has five layers of protocols; OSI has seven. The methods of passing information from one layer to another are specified as part of the protocol suite, and changes within a protocol layer do not affect the other layers.
Communication networks for computers may be organized as a set ofmore or less independent protocols, each in a different layer(also called level). The lowest layer governs direct host-to-hostcommunication between the hardware at different hosts; the highestconsists of user applications. Each layer builds on the layerbeneath it. For each layer, programs at different hosts useprotocols appropriate to the layer to communicate with each other.TCP/IP has five layers of protocols; OSI has seven. Theadvantages of different layers of protocols is that the methods ofpassing information from one layer to another are specifiedclearly as part of the protocol suite, and changes within aprotocol layer are prevented from affecting the other layers.This greatly simplifies the task of designing and maintainingcommunication programs. See also: Open Systems Interconnection,TCP/IP Protocol Suite. LIMITING TO A FIELD
The open system interconnection (OSI) model of seven layers that defines the protocols for data communications.
A conceptual region that embodies one or more functions between an upper and lower logical boundary within a hierarchy of functions. Remarks: Protocols are defined in a layered way according to the OSI Reference Model.
A logically distinct module in the architecture of a network, responsible for particular data communications tasks. It is also called a level. See Open Systems Interconnection (OSI) Reference Model .
Usually refers to the OSI specification dividing any communicating system into 7 layers, each having a different functionality. Layer 1 is the physical layer (radio), layer 2 is the link layer, and IP could be assimilated as layer 3 (network layer). TCP is considered layer 4, the transport layer.
Nodes in a neural net are usually grouped into layers, with each layer described as input, output or hidden. There are as many input nodes as there are input (independent) variables and as many output nodes as there are output (dependent) variables. Typically, there are one or two hidden layers.
(1) The grouping of related communication functions that provide a well defined service to a client independently of the protocols and other means used to provide it. (2) A software protocol levels that make up network architectures; each layer performs certain functions for the layers above and below it.
n. 1. The protocol or protocols operating at a particular level within a protocol suite, such as IP within the TCP/IP suite. Each layer is responsible for providing specific services or functions for computers exchanging information over a communications network, such as the layers outlined in the ISO/OSI model shown in the table below, and information is passed from one layer to the next. Although different suites have varying numbers of levels, generally the highest layer deals with software interactions at the application level, and the lowest governs hardware-level connections between different machines. See also ISO/OSI model, protocol stack, TCP/IP. 2. In communications and distributed processing, a set of rules and standards that handle a particular class of events. k:\compdict\database\687.doc