The heart of the recent hit game simaquarium is a tight loop that calculates the average position of 256 algae. you are evaluating its cache performance on a machine with a 1024-byte direct-mapped data cache with 16-byte blocks (b = 16). you are given the following definitions:
struct algae_position {
int x; int y;
};
struct algae_position grid[16][16];
int total_x = 0, total_y = 0;
int i, j;
//grid begins at memory address 0
//the only memory accesses are to the entries of the array grid. i,j,total_x,total_y are stored in registers
//assuming the cache starts empty, when the following code is executed:
for (i = 0; i < 16; i++) {
for (j = 0; j < 16; j++) {
total_x += grid[i][j].x;
]
}
for (i = 0; i < 16; i++) {
for (j = 0; j < 16; j++) {
total_y += grid[i][j].y;
}
}
required:
a. what is the total number of reads?
b. what is the total number of reads that miss in the cache?
c. what is the miss rate?
Answers
We are evaluating its cache performance on a machine with a 1024-byte direct-mapped data cache with 16-byte blocks (b = 16). The total number of reads is 256 (for 'x') + 256 (for 'y') = 512 reads. All 256 reads of 'y' values will result in cache misses and the miss rate is 50%.
a. The total number of reads:
Since there are two nested loops in both cases, one iterating over 16 elements and the other also iterating over 16 elements, each loop iterates 16 * 16 = 256 times. The first loop reads the 'x' value and the second loop reads the 'y' value of the struct, so the total number of reads is 256 (for 'x') + 256 (for 'y') = 512 reads.
b. The total number of reads that miss in the cache:
A direct-mapped cache with 1024-byte capacity and 16-byte blocks gives us 1024 / 16 = 64 cache lines. Each cache line holds 16 bytes, which is enough to store one algae_position (8 bytes each for 'x' and 'y' as int is typically 4 bytes). Therefore, each row of the grid (16 elements) will fill 16 cache lines.
Since the grid size is 16x16, the first 16 rows fill the cache. However, due to direct-mapped nature, when reading the 'y' values, the cache is already filled by 'x' values, and the 'y' values will cause cache misses. Therefore, all 256 reads of 'y' values will result in cache misses.
c. The miss rate:
Miss rate = (total number of cache misses) / (total number of reads) = 256 (misses) / 512 (reads) = 0.5 or 50%.
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Related Questions
python
how do I fix this error I am getting
code:
from tkinter import *
expression = ""
def press(num):
global expression
expression = expression + str(num)
equation.set(expression)
def equalpress():
try:
global expression
total = str(eval(expression))
equation.set(total)
expression = ""
except:
equation.set(" error ")
expression = ""
def clear():
global expression
expression = ""
equation.set("")
equation.set("")
if __name__ == "__main__":
gui = Tk()
gui.geometry("270x150")
equation = StringVar()
expression_field = Entry(gui, textvariable=equation)
expression_field.grid(columnspan=4, ipadx=70)
buttonl = Button(gui, text=' 1', fg='black', bg='white',command=lambda: press(1), height=l, width=7)
buttonl.grid(row=2, column=0)
button2 = Button(gui, text=' 2', fg='black', bg='white',command=lambda: press(2), height=l, width=7)
button2.grid(row=2, column=1)
button3 = Button(gui, text=' 3', fg='black', bg='white',command=lambda: press(2), height=l, width=7)
button3.grid(row=2, column=2)
button4 = Button(gui, text=' 4', fg='black', bg='white',command=lambda: press(2), height=l, width=7)
button4.grid(row=3, column=0)
button5 = Button(gui, text=' 5', fg='black', bg='white',command=lambda: press(2), height=l, width=7)
button5.grid(row=3, column=1)
button6 = Button(gui, text=' 6', fg='black', bg='white',command=lambda: press(2), height=l, width=7)
button6.grid(row=3, column=2)
button7 = Button(gui, text=' 7', fg='black', bg='white',command=lambda: press(2), height=l, width=7)
button7.grid(row=4, column=0)
button8 = Button(gui, text=' 8', fg='black', bg='white',command=lambda: press(2), height=l, width=7)
button8.grid(row=4, column=1)
button9 = Button(gui, text=' 9', fg='black', bg='white',command=lambda: press(2), height=l, width=7)
button9.grid(row=4, column=2)
button0 = Button(gui, text=' 0', fg='black', bg='white',command=lambda: press(2), height=l, width=7)
button0.grid(row=5, column=0)
Add = Button(gui, text=' +', fg='black', bg='white',command=lambda: press("+"), height=l, width=7)
Add.grid(row=2, column=3)
Sub = Button(gui, text=' -', fg='black', bg='white',command=lambda: press(2), height=l, width=7)
Sub.grid(row=3, column=3)
Div = Button(gui, text=' /', fg='black', bg='white',command=lambda: press("/"), height=l, width=7)
Div.grid(row=5, column=3)
Mul = Button(gui, text=' *', fg='black', bg='white',command=lambda: press("*"), height=l, width=7)
Mul.grid(row=4, column=3)
Equal = Button(gui, text=' =', fg='black', bg='white',command=equalpress, height=l, width=7)
Equal.grid(row=5, column=2)
Clear = Button(gui, text=' Clear', fg='black', bg='white',command=clear, height=l, width=7)
Clear.grid(row=5, column=1)
Decimal = Button(gui, text=' .', fg='black', bg='white',command=lambda: press("."), height=l, width=7)
buttonl.grid(row=6, column=0)
gui.mainloop()
Answers
Answer:
from tkinter import *
expression = ""
def press(num):
global expression
expression = expression + str(num)
equation.set(expression)
def equalpress():
try:
global expression
total = str(eval(expression))
equation.set(total)
expression = ""
except:
equation.set(" error ")
expression = ""
def clear():
global expression
expression = ""
equation.set("")
if __name__ == "__main__":
gui = Tk()
equation = StringVar(gui, "")
equation.set("")
gui.geometry("270x150")
expression_field = Entry(gui, textvariable=equation)
expression_field.grid(columnspan=4, ipadx=70)
buttonl = Button(gui, text=' 1', fg='black', bg='white',command=lambda: press(1), height=1, width=7)
buttonl.grid(row=2, column=0)
button2 = Button(gui, text=' 2', fg='black', bg='white',command=lambda: press(2), height=1, width=7)
button2.grid(row=2, column=1)
button3 = Button(gui, text=' 3', fg='black', bg='white',command=lambda: press(3), height=1, width=7)
button3.grid(row=2, column=2)
button4 = Button(gui, text=' 4', fg='black', bg='white',command=lambda: press(4), height=1, width=7)
button4.grid(row=3, column=0)
button5 = Button(gui, text=' 5', fg='black', bg='white',command=lambda: press(5), height=1, width=7)
button5.grid(row=3, column=1)
button6 = Button(gui, text=' 6', fg='black', bg='white',command=lambda: press(6), height=1, width=7)
button6.grid(row=3, column=2)
button7 = Button(gui, text=' 7', fg='black', bg='white',command=lambda: press(7), height=1, width=7)
button7.grid(row=4, column=0)
button8 = Button(gui, text=' 8', fg='black', bg='white',command=lambda: press(8), height=1, width=7)
button8.grid(row=4, column=1)
button9 = Button(gui, text=' 9', fg='black', bg='white',command=lambda: press(9), height=1, width=7)
button9.grid(row=4, column=2)
button0 = Button(gui, text=' 0', fg='black', bg='white',command=lambda: press(2), height=1, width=7)
button0.grid(row=5, column=0)
Add = Button(gui, text=' +', fg='black', bg='white',command=lambda: press("+"), height=1, width=7)
Add.grid(row=2, column=3)
Sub = Button(gui, text=' -', fg='black', bg='white',command=lambda: press("-"), height=1, width=7)
Sub.grid(row=3, column=3)
Div = Button(gui, text=' /', fg='black', bg='white',command=lambda: press("/"), height=1, width=7)
Div.grid(row=5, column=3)
Mul = Button(gui, text=' *', fg='black', bg='white',command=lambda: press("*"), height=1, width=7)
Mul.grid(row=4, column=3)
Equal = Button(gui, text=' =', fg='black', bg='white',command=equalpress, height=1, width=7)
Equal.grid(row=5, column=2)
Clear = Button(gui, text=' Clear', fg='black', bg='white',command=clear, height=1, width=7)
Clear.grid(row=5, column=1)
Decimal = Button(gui, text=' .', fg='black', bg='white',command=lambda: press("."), height=1, width=7)
Decimal.grid(row=6, column=0)
gui.mainloop()
Explanation:
I fixed several other typos. Your calculator works like a charm!
in less developed countries, consumer goods such as telephones, televisions, and motor vehicles are
Answers
In less developed countries, the availability and accessibility of consumer goods such as telephones, televisions, and motor vehicles are limited due to various factors.
One of the primary reasons for this is the lack of infrastructure and technological advancements.
The manufacturing and distribution processes of these goods require proper transportation and communication systems, which may not be developed or efficient enough in these countries.Additionally, the low levels of income and poverty prevalent in these countries also hinder the ability of consumers to purchase these goods. The cost of such goods may be relatively high compared to the average income, making it unaffordable for a significant portion of the population.Furthermore, the focus of these countries may be more on basic necessities such as food, shelter, and healthcare rather than on luxury items such as televisions and motor vehicles. As a result, the demand for these goods may not be as high as in developed countries, leading to a lack of investment in their manufacturing and distribution.Overall, the limited availability of consumer goods in less developed countries is a complex issue that is impacted by various factors, including infrastructure, income levels, and priorities.Know more about the technology
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You are an IT consultant. You are visiting a new client's site to become familiar with their network. As you walk around their facility, you note the following: When you enter the facility, a receptionist greets you and directs you down the hallway to the office manager's cubicle. The receptionist uses a notebook system that is secured to her desk with a cable lock. The office manager informs you that the organization's servers are kept in a locked closet. Only she has the key to the closet. When you arrive on site, you will be required to get the key from her to access the closet. She informs you that server backups are configured to run each night. A rotation of external USB hard disks are used as the backup media. You notice that the organization's network switch is kept in an empty cubicle adjacent to the office manager's workspace. You notice that a router/firewall/content filter all-in-one device has been implemented in the server closet to protect the internal network from external attacks. Which security-related recommendations should you make to this client
Answers
Answer: • Control access to the work area with locking doors and card readers.
• Relocate the switch to the locked server closet
Explanation:
Based on the information given, the security-related recommendations that should be made to this client include:
• Relocate the switch to the locked server closet: Since the organization's network switch is kept in an empty cubicle that is adjacent to the office manager's workspace, it can be easily accessible by anyone and this could lead to an external attack. Therefore, it should be moved to the locked server closet to prevent external attack.
• Control access to the work area with locking doors and card readers- Thus us necessary so that the work area won't be accessible to just anybody.
you also want to restrict all outbound traffic sent through serial0 from network 192.168.2.0/24. how should you configure acls on the router to meet all current and new requirements with as little effort as possible?
Answers
To meet the new requirement of restricting outbound traffic sent through serial0 from network 192.168.2.0/24, we can modify the existing access control list (ACL) on the router.
Assuming the existing ACL is named "ACL-OUT", we can add a new rule to deny outbound traffic from network 192.168.2.0/24 to any destination. The modified ACL would look like this:
access-list ACL-OUT deny ip 192.168.2.0 0.0.0.255 any
access-list ACL-OUT permit ip any any
The first line denies any traffic from network 192.168.2.0/24 to any destination. The second line permits all other traffic.
This modified ACL meets both the current requirement of allowing all outbound traffic and the new requirement of restricting outbound traffic from network 192.168.2.0/24 with minimal effort, since we only added one line to the existing ACL.
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You are most likely to take advantage of automation when you
scan groceries at the supermarket
eat home-made bread
go to a hockey game
lock your front door
Answers
Answer:
scan groceries at the supermarket
why is it necessary to consider the client safety and comfort
Answers
Essentially, you have to focus on customer comfort in order to ensure your customer can concentrate on your business only, without distractions or concerns over their physical well-being
hris has received an email that was entirely written using capitalization. He needs to paste this text into another document but also ensure that the capitalization is removed.
What should Chris do?
Answers
HELP ASAP!!!
Write a program that asks the p34won to enter their grade, and then prints GRADE is a fun grade. Your program should repeat these steps until the user inputs I graduated.
Sample Run
What grade are you in?: (I graduated) 1st
1st is a fun grade.
What grade are you in?: (I graduated) 3rd
3rd is a fun grade.
What grade are you in?: (I graduated) 12th
12th is a fun grade.
What grade are you in?: (I graduated) I graduated
It's in python
Answers
def func():
while True:
grade = input("What grade are you in?: (I graduated) ")
if grade == "I graduated":
return
print("{} is a fun grade".format(grade))
func()
I hope this helps!
Which of the following commands CANNOT be found on the Page Design tab? Question 2 options: Insert a text box Delete a page Change page orientation Specify a color scheme.
Answers
Answer:
The answer is, Insert A Text Box.Hope this helps.
The command "Delete a page" cannot be found on the Page Design tab. The correct option is B.
What is command?An instruction or collection of instructions issued to a computer or software program is referred to as a command in computing.
The Page Design tab does not contain the "Delete a page" command.
All of the additional instructions mentioned in the query can be discovered on the Page Design tab or other relevant tabs in different word processing or desktop publishing programs.
A frequently used tool for adding more text or graphic elements to a page is "Insert a text box," "Change page orientation" is frequently used to switch between portrait and landscape mode.
Also the "Specify a color scheme" might let users select from predefined color schemes for the text, background, and other elements.
Thus, the correct option is B.
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which statistic is most likely to be included in a network baseline report?
Answers
According to question , A networks baseline report will most likely include a hard drive utilization metric.
What is a network defined as?A group of computers connected together to pool resources (such printers , CDs), exchange information, or enable electronic conversations make up a network. A network's connections to its computers can be made through cables, phone lines, radio signals, satellite, or infrared laser beams.
Describe network with an example :Computers, servers, data centers, network devices, peripherals, and other linked devices form a network that enables data exchange. The Internet, which links millions of people worldwide, is an illustration of a network.
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Which usability factor specifies that information should be viewed and retrieved in a manner most convenient to the user?
A) Clarity
B) Organization
C) Format
D) Flexibility
Answers
Create a flowchart to find the total of 10 negative numbers start from -1.
Answers
Here is a simple flowchart to find the total of 10 negative numbers starting from -1:
```
Start
↓
Set total = 0
Set counter = 1
↓
While counter <= 10
|
├─ Yes ─┬─→ Add counter to total
│ ↓
│ Increment counter by 1
│
├─ No ──┬─→ Display total
↓
End
```
In this flowchart, we start by initializing the total to 0 and the counter to 1. Then, we enter a loop that continues as long as the counter is less than or equal to 10. Inside the loop, we add the current value of the counter to the total, and then we increment the counter by 1. Once the loop finishes, we display the total.
\(\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}\)
♥️ \(\large{\textcolor{red}{\underline{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)
ITEMS
Evan spent 25% of his money on rent and g on food, together his
expenses totaled to $75.00. Calculate the total amount of money Evan had
Answers
Answer:
Total money he had = $136 (Approx.)
Explanation:
Given:
Spend on rent = 25%
Spend on food = 30%
Total of expenses = $75
Find:
Total money he had
Computation:
Total money he had = [Total of expenses][100/ (Spend on rent + Spend on food)]
Total money he had = [75][100/ (25 + 30)]
Total money he had = [75][100/ (55)]
Total money he had = 136.36
Total money he had = $136 (Approx.)
true or false a weighted inventory system is often tied into player advancement
Answers
Answer:tayfana
Explanation:true
which one of the following statements is true regarding state machine diagrams? group of answer choices they model how the user interacts with the system they model communications sequences between classes they model the activities involved in a business process they model the states of an object they model the states of a class
Answers
The true statement regarding state machine diagrams is that they model the states of an object.
State machine diagrams represent the states of a system or object as well as the events that cause those states to change. State machine diagrams help you to comprehend complex operations and improve the robustness of systems.The true statement regarding state machine diagrams is that they model the states of an object. State machine diagrams model the different states that an object can be in during its lifecycle as well as the transitions between those states.State machine diagrams are used in software engineering to represent the behavior of a system, class, or object. They are useful in visualizing how a system changes over time and how different events can trigger those changes.
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b) Explain how a lockbox system operates and why a firm might consider implementing such a system.
Answers
A lockbox system is a system in which a company's incoming payments are directed to a post office box, rather than to the company's offices. This allows the company to process payments more efficiently, since the payments are sent directly to a bank that is authorized to receive and deposit them.
The bank will then deposit the funds into the company's account, rather than sending them to the company's offices for processing. First, it can help reduce processing time for incoming payments. Second, a lockbox system can help reduce the risk of fraud.
Since payments are sent directly to the bank, there is less chance that they will be lost, stolen, or misused. Third, a lockbox system can help improve cash flow. By reducing the time, it takes to process payments, the company can receive its funds more quickly and put them to use sooner. This can help improve the company's overall financial position.
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What are some options available in the Spelling and Grammar Checker? Check all that apply.
Redo
Undo
Ignore All
Ignore Once
AutoFormat
Add to Dictionary
Readability statistics
Answers
kase ayun yung sa tingin kong tamang sagot soo yun na nga
Answer:
ignore all
ignore once
add to dictionary
Explanation:
took the assignment on edge2020
Which selection tool should be used to fill a vacancy that requires managing multiple priorities and working under pressure
Answers
The selection tool that should be used to fill a vacancy that requires managing multiple priorities and working under pressure is Behavioral Assessment.
Why is behavioral assessment vital?Behavioral assessment is known to be that which helps us as humans to be able to look at how a person does their work and gains or get their objectives.
Therefore, The selection tool that should be used to fill a vacancy that requires managing multiple priorities and working under pressure is Behavioral Assessment because this is what it is.
See full question below
Which selection tool should be used to fill a vacancy that requires managing multiple priorities and working under pressure?
A. Cognitive Ability Test
B. Background Check
C. Behavioral Assessment
D. Academic Transcript
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derek sets up a series of virtual machines that are automatically created in a completely isolated environment. once created, the systems are used to run potentially malicious software and files. the actions taken by those files and programs are recorded and then reported. what technique is derek using?
Answers
Derek uses sandboxing technique. Sandboxing is the cybersecurity practice of running, observing, analyzing, and programming code in a safe, isolated environment on a network that mimics the end user's operating environment.
Why is it called sandbox?Sandboxes are designed to prevent threats from entering a network and are commonly used to examine untested or untrusted code. The term sandbox comes from the idea of a children's sandbox, where sand and toys are stored in small containers or walled areas for children to play safely. The sandbox approach gives each software application a "sandbox". This is a controlled and restricted environment for running and executing code.
What are sandbox examples?specific example of using sandboxes to isolate code execution: Web browser. Trusted web browsers can run in a sandbox. Second, if a website exploits a vulnerability in that web browser, the damage is limited to the sandbox and is minimal.
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A device that connects to a network without the use of cables is said to be?
Answers
Your answer can be found here:
https://brainly.in/question/17219485
Hope this helps!
What term is commonly used to refer to HTML formatting?
Answers
Answer:
<html> or </html>
write the importance of software In computer
Answers
Answer:
Microsoft word, Excel, Access, Power point, Microsoft windows...........
Explanation:
Where would you find the Create Table Dialog box ?
Answers
Hope it’s right
Best luck with your studying
Answer:
From the Insert command tab, in the Tables group, click Table. NOTES: The Create Table dialog box appears, displaying the selected cell range.
Explanation:
what software did abby’s first suggest after microsoft word?
Answers
Direct Answer: Abby's first software suggestion after Microsoft Word was Corel WordPerfect.Explanation and Calculation:Abby suggested Corel WordPerfect as a word processor software alternative to Microsoft Word. This word processor was introduced in 1980 and has evolved over the years to support numerous operating systems such as Windows, macOS, and Linux. Corel WordPerfect is known for its compatibility with other office applications, unlike Microsoft Word. It also has a range of advanced features that make it a good choice for professionals in law and government.Conclusion:In conclusion, Abby suggested Corel WordPerfect as an alternative to Microsoft Word, and this word processor software has been around for several years. Corel WordPerfect has a reputation for being more compatible with other office applications than Microsoft Word, and it has a number of advanced features that make it an excellent choice for law and government professionals.
Which statement describe the advantages of using XML? more than one answer can be correct
A-it saves file space
B-it allows for data storage in a separate file
C-it is hardware dependent
D-it is software independent
E-it facilitates the transport of data
Answers
Answer:
The statements that describe the advantages of using XML are;
B-It allows for data storage in a separate file
D-It is software independent
E-It facilitates the transport of data
Explanation:
XML data can be stored in separate file such that the layout and display can designed in HTML whereby the data in the XML file can be changed without changing the HTML
XML is both software and hardware independent thereby it is possible to use the same XML to carry information to different computers and software
XML is used for data transport.
you are teaching a class about basic camera functions like power, basic date/time, menu navigation, and how to properly attach and remove lenses from a DSLR or hybrid camera. While you would likely do a lot more showing than telling while teaching, share a script of what you would say to properly explain how to perform these basic actions.
Answers
Answer: So, I would start the class off with this, “Camera’s are so crucial to life, why because they capture light and memories that are a once and a lifetime thing.” Then after the students dwelling on that statement, I would start with talking about how to set up a camera. I would pull out mine and pull up a diagram on the green screen and show them step by step what I do. First, you want to turn the camera on by turning the switch where the white line lines up with “on”, once you are, then you want to set up the time and date. To do so, you want to click on the menu button, once you are in, there should be a list of five options, you want to go to the setup menu. Once there you want to click on “World time” there you can change the date and time. Once you have set up the time you want to go back to the menu screen, there are 5 options. The five options are called “playback menu”, “Shooting menu”, “Custom Setting menu”, “Setup menu” and “retouch menu”. These five have various purposes in which we will get to later on inside of the lesson. Now camera lenses are super easy, when you are changing or taking off lens, there should be a button on the left side of the camera right under your camera model name. Hold that button in with one hand and grab the lens with the other, then you want to twist the lens till it comes off. To put it back on you want to line up the white dots and it should slide in and then twist it back on.
Explanation: That is the answer
It should be noted that a camera simply means an optical instrument that's used to capture images or to record moving images.
A camera simply consists of a lens that focuses light from the scene. In a camera, the viewfinder is vital in viewing and framing the subject.
The flash is vital in producing light. The camera lens is important to shift between focal lengths. The shutter button is used to capture it record images.
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differences between analog computer and hybrid computer
Answers
Answer:
Analog computers only work with continuous numerical data in analog quantities, digital computers can process both non-numerical and numerical data and a hybrid computer is a combination of both analog and digital. A hybrid computer has the accuracy of a digital computer paired with speed of an analog one.
Answer:
sorry for bad picture
hope it helps you have a good day keep smiling be happy stay safe ☺️
Why is computer mouse waste one of the biggest waste issues facing the world?
Answers
Answer:
because they are hard to decompose
Explanation:
You are running an 802.11g wireless router in mixed mode. You have three 802.11g wireless NICs connected to the router. A new user connects to an 802.11b wireless NIC. What will happen
Answers
Complete Question:
You are running an 802.11g wireless router in mixed mode. You have three 802.11g wireless NICs using the router. A new user connects using an 802.11b wireless NIC. What will happen?
Group of answer choices.
A. The user with 802.11b will access the network at 11Mbps while the users with 802.11g will access the network at 54 Mbps.
B. The user with 802.11b will not be able to communicate on the network.
C. The user with 802.11b will access the network at 11 Mbps. The users with 802.11g will access the network at 54 Mbps unless they are communicating with the 802.11b device,which will be at 11 Mbps.
D. All users will access the network at 11 Mbps.
Answer:
D. All users will access the network at 11 Mbps.
Explanation:
A 802.11g is one of the wireless network standards developed by the Institute of Electrical and Electronics Engineers (IEEE) which operates on a 2.4 GHz microwave bandwidth and as a result can only transmit over a short distance. The 802.11g has a data transfer rate or throughput of 54 megabits per seconds (Mbps).
Basically, the 802.11b is a similar standard to the 802.11g wireless standard that typically allows the transmission (transfer) of data for up to 11 megabits per seconds (Mbps).
In this scenario, you are running an 802.11g wireless router in mixed mode. You have three 802.11g wireless NICs using the router. A new user connects using an 802.11b wireless NIC.
Hence, what will happen is that, all the users will access the network at 11 Mbps.
What's the best way that Safiya can improve the machine learning algorithm's ability to detect all pedestrians
Answers
The best way that Safiya can improve the machine learning algorithm's ability to detect all pedestrians is; As detailed below.
What is a machine algorithm?Machine learning algorithms are mathematical model mapping methods used to learn or uncover underlying patterns embedded in the data.
Now, Machine learning comprises a group of computational algorithms that can carry out pattern recognition, classification, and prediction on data by learning from existing data set.
In this question, the best way that Safiya can improve the machine learning algorithm's ability to detect all pedestrians is She can add videos of people using wheelchairs and strollers into the training data set (perhaps crowd-sourcing them if there are none already available).
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