Imagine you're building a classifier to identify whether there's somebody waiting to cross a roadgiven images from a CCTV camera. When a person is detected, the lights should turn red to allowthem to safely cross. The positive class indicates a person is present and the negative classindicates nobody is there.What would a system with high specificity and low sensitivity correspond to in this scenario?The system will often turn the traffic lights to red regardless of whether someone is waitingThe system will change the traffic lights to red whenever a person is not presentThe system will rarely turn the traffic lights red when nobody is waiting, but some people might need to waitfor a long time.The system will change the traffic lights to red at nightThe system will change the traffic lights to red whenever a person is present and sometimes when nobody isthere

The above question that is What would a system with high specificity and low sensitivity correspond…

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Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Write out two external and two internal obstacles to attentive listening.
Submit solutions to the following problems in a single pdf document preferably completed using LaTeX. It is likely that you will need to use programming (Python) or a matrix calculator to solve most of the problems. You do not need to submit the code, but you should include explanations of all your conclusions. 1. Suppose a robot mouse is placed in a grid. Each room in the grid has doors that open to all other rooms. One room contains a trap so if the robot mouse enters that room, then the robot loses and the game ends. If the robot mouse makes it to the outside of the grid, then it wins and the game ends. Suppose the grid is 5x5 and the trap is in the third row, third column. When the robot mouse is placed in a room, it randomly selects a move left, right, up, or down until it is either trapped or reaches the outside. Assume that the starting point is never the room with the trap. What is the probability that the robot mouse will win the game? Does it depend on where the mouse begins?…
When you hear the word "email," what are some of the first things that spring to mind? What happens to an email once it has been sent? Make a note of all the things you have learned that you didn't know previously. I'm curious if anybody has any ideas on what may be causing these discrepancies. Does your organization have a range of model complexity?
Humans are different from other animals in many ways, including their physiology and psychology, yet designers of interaction systems nevertheless aim to build "Human-Centered" designs. As we'll see in the next section, the interface designer's task is made more difficult by the fact that they must deal with both homogenous and varied groups.
Computer Science Assume you work in the IT department at an organization in Florida. The 500 employees in the organization are diverse in age, gender, race, nationality, and religious preference. Scenario: You discover pornographic images on a company server, which you are responsible for maintaining. You think that some of the images are of nude children. After a forensics investigation, you cannot trace the origins of images to a specific user in the organization. You discover that dozens of employees, including a co-worker, have viewed the images, but no one has reported the incident. What do you do? Whom do you inform? Do you delete them? Do you block further access? Do you call the police? What are the legal requirements you must take?
Using Microsoft Excel, create a spreadsheet to simulate a finite element analysis of heat transfer in a sheet of metal which is heated to soldering temperature at one corner. Assume that the temperature of any single cell is equal to the average of the temperatures of the four cells which share a side with it. Create a 10 by 10 cell finite element model with the temperature of the top edge (all 10 cells) is held to 20 degrees C, and the temperature along the right side is also held to 20 degrees. Make the lower left corner "hot" -- you can pick a value similar to a that of a soldering iron (look up temperatures of soldering iron tips). You can then add values long the bottom going from high down to 20 degrees, decreasing from left to right -- choose any starting rate you like. You can do the same for the left side, going from 20 degrees at the top and going up to the high temperature you have assigned in the lower left corner. Once you have made sure your spread sheet model…
we are interested in an automatic garage gate system for a building. This system includes a gate that goes up or down, a motor to actuate the gate (pull, push) and sensors to collect information (gate open contact, gate closed contact). The sensors are all similar, each signaling to its controller that a contact has taken place. The user has a remote control to control with just two buttons: open, close. The operating principle of the system is as follows. Suppose the gate is closed. The user opens the gate by pressing the Open button on his remote control. He can stop opening by pressing the Open button again, the motor stops. Otherwise, the gate opens completely and triggers a Gate Open sensor which causes the motor to stop. Pressing the Close button causes the gate to close if it is open (partially or fully). The closing can be stopped by pressing the Close button again, the motor stops. Otherwise, the gate closes completely and triggers a Gate Closed sensor which causes the engine…
Consider each's strengths and downsides. Which scenarios need an interpreter?
You are invited to design a national identification number system for U.S. citizens. The ID number should: reflect the state, county, and city the person lives in; reflect the person’s date of birth; take into account the possibility of multiple individuals sharing identical birthday in the same city. Please also EXPLAIN your design of this ID number system with appropriate examples. Merely providing an example is not sufficient.
What pictures come to mind when you hear the term "email"? When an email is sent, what happens to it? Gather all the information you've gleaned to date and write it down. I'm wondering if anybody can provide any light on why these inconsistencies exist. Is there a wide range of complexity in the models you build?
In this Challenge Exercise, you are going to build a computational model, much like the McBurgers simulation of Section 13.2.3. To do this, follow the same design steps that were used in this example, namely: • Specify the events that can change the state of your system. • For each event, specify an algorithm that shows how the system changes when this type of event occurs. • Specify the main algorithm that will initialize your system, get the simulation started, and run the simulation until it has completed. You do not need to specify your solution in a high-level programming language (unless you want to). Instead, you can write your algorithms using the pseudocode presented in Chapter 2 and shown in Figure 2.9. The system that you are going to model is a small airport with a single runway that handles both takeoffs and landings. This system is diagrammed on the next page.
The OSI model, on the other hand, says that there should be a certain number of layers, but most real computer systems don't follow this rule. The way computer systems work at their core is what has led to the current situation. If you can, try making the product with less pieces. How would it be bad to cut down on the total number of layers?

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