Shannon Weaver Model of Communication

Summary

This script introduces the Shannon-Weaver model of communication, developed by Claude Shannon and Warren Weaver in 1949. It outlines the model's components: sender, encoder, channel, noise, decoder, and receiver, highlighting the absence of feedback in the original model. The script also discusses the model's evolution with Norbert Wiener's addition of a feedback loop, transforming it into a more interactive communication process. An example illustrates the model's application, emphasizing the importance of feedback for effective communication.

Takeaways

• 📡 The Shannon-Weaver model was created by Claude Elwood Shannon and Warren Weaver in 1949.
• 🧠 Claude Shannon was an American mathematician and electrical engineer who laid the foundation for digital circuits and information theory.
• 🔬 Warren Weaver was an American scientist and mathematician, known for his work in machine translation and supporting science in the U.S.
• 🎤 The Shannon-Weaver model consists of several key elements: sender, encoder, channel, noise, decoder, and receiver.
• 🔊 The sender is the information source, while the encoder converts ideas into signals or words.
• 📡 The channel is the medium that carries the information from the sender to the receiver.
• 🔇 Noise is any interruption that affects the communication process, such as background sounds.
• 📜 The decoder converts signals back into a message that the receiver can understand.
• 📥 The receiver is the endpoint of the communication process, where the message is received.
• 🔁 Norbert Wiener added the concept of feedback, transforming the model from linear to cyclical, making it interactive.

Q & A

What is the Shannon-Weaver model of communication?

The Shannon-Weaver model, also known as the Shannon Weaver model, is a mathematical model of communication that was created by Claude Elwood Shannon and Warren Weaver in 1949. It is a foundational model in the field of information theory and describes the process of communication as a linear sequence of steps involving a sender, an encoder, a channel, a decoder, and a receiver, with noise as a potential source of interference.

Who are Claude Elwood Shannon and Warren Weaver, and what are their contributions to the field of communication?

Claude Elwood Shannon was an American mathematician and electrical engineer who laid the theoretical foundations for digital circuits and information theory. He is known for his work on mathematical communication models. Warren Weaver was an American scientist, mathematician, and science administrator, recognized as a pioneer in machine translation and for his role in creating support for science in the United States.

What is the role of the sender in the Shannon-Weaver model?

In the Shannon-Weaver model, the sender is the information source that initiates the communication process. The sender can be a person or a machine that converts ideas into signals or binary digits, which are then encoded for transmission.

What is the function of the encoder in the communication process?

The encoder in the Shannon-Weaver model is responsible for converting the ideas or information from the sender into a format that can be transmitted through the channel. This can be in the form of signals, binary digits, spoken or written words, or actions.

Can you describe the channel in the Shannon-Weaver model?

The channel in the Shannon-Weaver model is the infrastructure that carries the information from the sender to the receiver. It can be a physical medium like cable or electrical wires, or it can be a wireless medium, and it is the pathway through which the encoded message travels.

What is meant by noise in the context of the Shannon-Weaver model?

In the Shannon-Weaver model, noise refers to any interference or distortion that can disrupt the communication process. It can be physical, such as a car horn in the example provided, or it can be conceptual, such as misunderstandings or misinterpretations of the message.

What is the purpose of the decoder in the communication process?

The decoder in the Shannon-Weaver model is responsible for converting the received signals back into a format that the receiver can understand. It decodes the message, allowing the receiver to interpret the information that was sent.

Who is the receiver in the Shannon-Weaver model?

The receiver in the Shannon-Weaver model is the end point of the communication process. It is the person or system that receives and interprets the message. The receiver's role is to understand and act upon the information received.

How does the concept of feedback differ in the initial and modified Shannon-Weaver models?

In the initial Shannon-Weaver model, there is no concept of feedback, meaning the sender does not receive any information about whether the message was correctly understood by the receiver. In the modified model, which includes the concept added by Norbert Wiener, feedback is introduced, allowing for a more interactive and cyclical communication process.

What is the significance of feedback in the communication process as described in the modified Shannon-Weaver model?

Feedback in the modified Shannon-Weaver model is significant because it allows for the sender to know whether the message has been correctly understood by the receiver. It enables the communication process to be interactive and cyclical, correcting any misunderstandings and ensuring effective communication.

Can you provide an example from the script that illustrates the Shannon-Weaver model in action?

In the script, an example is given where Thompson calls his assistant and says, 'Come here, I want to see you.' However, a car horn interrupts the call, and the assistant only hears 'I want.' The assistant's inquiry, 'What do you want, Thompson?' serves as feedback in the communication process, illustrating the elements of the Shannon-Weaver model in a real-world scenario.

Outlines

00:00

📚 Introduction to Shannon-Weaver Model

This paragraph introduces the Shannon-Weaver model of communication, developed by Claude Elwood Shannon and Warren Weaver in 1949. It highlights Shannon's contributions to digital circuits, information theory, and mathematical communication models, as well as Weaver's role as a pioneer in machine translation and science administration. The paragraph outlines the basic elements of the initial model, including the sender, encoder, channel, noise, decoder, and receiver, and notes the absence of a feedback mechanism, which led to criticism and subsequent modifications by Norbert Wiener.

Keywords

💡Shannon Weaver Model

The Shannon Weaver Model, also known as the Shannon-Beaver model, is a foundational concept in communication theory. Developed by Claude Elwood Shannon and Warren Weaver in 1949, it outlines the process of transmitting information from a sender to a receiver. In the video, this model is the central theme, illustrating the basic elements of communication and how they interact.

💡Claude Elwood Shannon

Claude Elwood Shannon was an American mathematician and electrical engineer who is renowned for his work in laying the theoretical foundations for digital circuits and information theory. In the context of the video, Shannon is highlighted as one of the creators of the communication model that bears his name, emphasizing his significant contributions to the field.

💡Warren Weaver

Warren Weaver was an American scientist, mathematician, and science administrator. The video mentions him as a co-creator of the Shannon-Weaver model and recognizes him as a pioneer in machine translation and an important figure in American scientific development. His collaboration with Shannon is crucial to the model's formation.

💡Sender

In the Shannon Weaver Model, the 'sender' is the origin of the message, responsible for generating the content to be communicated. The video explains that the sender can be a person or a machine, and in the example provided, Thompson is the sender who initiates communication with his assistant.

💡Encoder

The 'encoder' in the model is the mechanism or device that translates the sender's idea into a transmittable format, such as signals or binary digits. The video script describes the telephone as the encoder in the example involving Thompson and his assistant, converting Thompson's spoken words into electrical signals.

💡Channel

The 'channel' refers to the medium or pathway through which the encoded message travels from the sender to the receiver. In the video, the channel is exemplified by the cable or electrical wires that carry the telephone signal from Thompson to his assistant.

💡Noise

In the context of the Shannon Weaver Model, 'noise' represents any interference or disruption that can affect the clarity or accuracy of the transmitted message. The video provides an example of noise with the car horn that interrupts Thompson's call to his assistant, leading to a misunderstanding.

💡Decoder

The 'decoder' is the counterpart to the encoder, translating the received signals back into a format that the receiver can understand. In the video, the assistant's telephone acts as the decoder, converting the electrical signals back into Thompson's spoken words.

💡Receiver

The 'receiver' is the end-point of the communication process, where the message is ultimately received and interpreted. In the video's example, the assistant is the receiver who hears Thompson's message, albeit with the interference of noise.

💡Feedback

Feedback is a crucial element added to the Shannon Weaver Model by Norbert Wiener, transforming it from a linear to a cyclical or interactive model. The video explains that feedback allows the sender to know if the message has been correctly understood, as demonstrated when the assistant asks Thompson for clarification.

💡Norbert Wiener

Norbert Wiener was an American mathematician who is credited with adding the concept of feedback to the Shannon Weaver Model. The video mentions Wiener's contribution as a significant enhancement to the model, making communication a more dynamic and interactive process.

Highlights

Introduction to the Shannon-Weaver model of communication, created by Claude Elwood Shannon and Warren Weaver in 1949.

Claude Elwood Shannon was an American mathematician and electrical engineer who laid the theoretical foundations for digital circuits, information theory, and mathematical communication models.

Warren Weaver was an American scientist, mathematician, and science administrator, recognized as a pioneer of machine translation and an important figure in supporting science in the United States.

The Shannon-Weaver model includes the sender (information source), encoder, channel, decoder, receiver, and noise as key elements.

The encoder converts ideas into signals or binary digits, while a person can also encode ideas into spoken or written words or actions.

The channel serves as the infrastructure that transmits information from the sender to the receiver.

Noise is an element that interrupts the communication process.

The decoder is a device that decodes the message and converts received signals into a format the receiver can understand.

The receiver is the endpoint of the communication process, where the message is received.

The initial Shannon-Weaver model lacks a feedback mechanism, which has been criticized for omitting an essential element of communication.

Norbert Wiener added the concept of feedback to the Shannon-Weaver model, transforming it from a linear to a cyclical or interactive model of communication.

The modified Shannon-Weaver model includes the sender, encoder, channel, noise, decoder, receiver, and feedback.

Feedback allows the sender to know if the recipient has correctly understood the message.

Example given: Thompson calls his assistant, but noise from a car horn interrupts the call, leading to a misunderstanding and the need for clarification.

In the example, Thompson is the sender, the telephone is the encoder, the cable or electrical wires are the channel, the car horn is the noise, the assistant's telephone is the decoder, and the assistant is the receiver.

The assistant's question 'What do you want, Thompson?' serves as feedback in the communication process.

The distinction between the initial and modified Shannon-Weaver models is important, as most preferences only include the initial model without a feedback loop.

Encouragement for students to continue learning about communication models.

Transcripts

hello students we will now talk about

the second model of communication the

shannon beaver model this was created by

claude elwood shannon and warren beaver

in 1949

and who are

claude elwood shannon was an american

mathematician and an electrical engineer

who laid the theoretical foundations for

digital circuits and information theory

and mathematical communication model

while warren weber

was also an american scientist and

mathematician and a science

administrator he is widely recognized as

one of the pioneers of machine

translation and as an important figure

in creating support for science in the

united states

they are the proponents of the sun and

beaver model let's have the initial

model developed by shannon and paper

it has the following elements we have

the sender who is the information source

we have the encoder which is a machine

that converts the idea into

signals or binary digits

then we have

however it can be a person also

a person that converts the idea into

spoken or written words or actions and

we have the channel which is an

infrastructure

that gets the information from the

sender and then go there through the

decoder end receiver it is the medium of

communication we also have the element

of noise that interrupts

the communication process a decoder is a

device that decodes the message

and

converts

the

signals the received signals into a

message or into a format that the

receivable will

understand

then the receiver is the end point of

the communication process that is the

time that he or she gets the message

just like the aristotle's model this

model

has no concept of feedback so it has

been criticized for missing

the

essential element feedback without it

the sender will not know whether the

recipient gets the correct context of

the message or net

so

here comes

norbert weiner who added a seven con

concept in the shannon lever model which

changed it from a linear model to a

cyclical or interactive model of

communication

now here is the modified model of

uh shannon weber

weiner added the element of feedback so

from the sender we have the encoder the

channel the noise the decoder the

receiver in

additionally we have feedback

let's have this example thompson called

this assistant and said come here i want

to see you during his call a car

suddenly horned and his assistant only

heard i want the assistant inquired what

do you want thompson

again what are the elements

in the shannon weaver model we have the

sender the encoder the channel the noise

the decoder and the receiver who is the

sender

thomson

our encoder would be the telephone of mr

thomson the channel would be the cable

or the electrical wires

then we have the noise the car horn the

decoder is the telephone used by the

assistant and of course our receiver is

the assistant additionally again we have

the feedback

which is the question from the assistant

what do you want thompson so that is the

feedback

once again the initial model of shannon

weaver and the modified model of shannon

weaver model of communication please

take note of the distinction because

most of the

preferences only include the initial

model of communication which doesn't

have the feedback loop

once again thank you and keep on

learning