Question: Suppose that a Bayesian spam filter is trained on a set of 1000 spam messages and 400 messages that are not spam. The word opportunity

Suppose that a Bayesian spam filter is trained on a set of 1000 spam messages and 400 messages that are not spam. The word "opportunity" appears in 175 spam messages and 20 messages that are not spam. Would an incoming message be rejected as spam if it contains the word "opportunity" and the threshold for rejecting a message is 0.9?

Step by Step Solution

★★★★★

3.31 Rating (160 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

We follow the procedure in Example 3 We first compute that poppor... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

923-M-C-M-S (2106).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

The five most common words appearing in spam emails are shipping!, today!, here!, available, and fingertips! (Andy Greenberg, The Most Common Words In Spam Email, Forbes website, March 17, 2010)....

A study reported by Forbes indicated that the five most common words appearing in spam e-mails are shipping!, today!, here!, available, and fingertips! Many spam filters separate spam from ham...

A company has recently replaced their e-mail spam filter because investigations had found that the volume of spam e-mail was interrupting productive work on about 15 % of workdays. To see how bad the...

Problem 4. Suppose that a Bayesian spam filter is trained on a set of 1000 spam messages and 250 messages that are not spam. The word "cruise" appears in 50 spam messages and in 2 messages that are...

UNIVERSITY OF WESTERN ONTARIO Computer Science 2214a, Fall 2016 - 2017 Discrete Structures for Computing ASSIGNMENT 5 Given: Wednesday Nov.30, Due: Wednesday Dec. 7, 6:00pm 1. Suppose you randomly...

Suppose that a Bayesian spam filter is trained on a set of 10000 spam messages and 5000 messages that are not spam. The word opportunity appears in 175 spam messages and 20 messages that are not...

Calculate the probability of getting exactly 50 heads and 50 tails after flipping a fair coin 100 times. (a) Calculate the probability of getting exactly 50 heads and 50 tails after flipping a fair...

Suppose that a Bayesian spam filter is trained on a set of 10,000 spam messages and 5,000 messages that are not spam. The word "opportunity" appears in 800 spam messages and 100 messages that are not...

QUESTION 8 Suppose that a Bayesian spam filter is trained on a set of 2000 spam messages and 1000 messages that are not spam. The word "lifetime" appears in 350 spam messages and 20 messages that are...

Suppose that a Bayesian spam filter is trained on a set of 2000 spam messages and 1000 messages that are not spam. The word lifetime appears in 350 spam messages and 15 messages that are not spam....

A refrigeration unit on a job site must be slid into place If the frictional force of 975 N opposes the motion and two workers apply a total force of 1095 N to the unit what is the net force on the...

When Fred joined CanPubCo in 2018, CanPubCo granted Fred a stock option to purchase 1,000 of its common shares at $16 per share. At the time the option was granted, CanPubCos shares were trading at...

A company reports the following amounts for 2 0 2 4 : Inventory ( beginning ) $ 1 1 , 0 0 0 Inventory ( ending ) 3 2 , 0 0 0 Purchases 2 5 0 , 0 0 0 Purchase returns 1 3 , 0 0 0 Calculate cost of...

You are on a committee that is considering ways to raise money for your citys symphony program. You would recommend increasing the price of symphony tickets only if you thought the demand curve for...

The type II error probability for the t-test for H0: B1 = B1, 0 can be computed in a similar manner to the t-tests of Chapter 9. If the true value of B1 is B1, the value =|B1, 0 B1/((n 1)/Sxx is...

Refer to the data in Exercise 11-1 on y = intrinsic permeability of concrete and x = compressive strength. Find a 95% confidence interval on each of the following: (a) Slope (b) Intercept (c) Mean...

Exercise 11-2 presented data on roadway surface temperature x and pavement deflection y. Find a 99% confidence interval on each of the following: (a) Slope (b) Intercept (c) Mean deflection when...

Grenouille Properties. Grenouille Properties (U.S.) expects to receive cash dividends from a French joint venture over the coming three years. The first dividend, to be paid in one year, is expected...

Tax credits A U.S.-based MNC has a foreign subsidiary that earns $258,000 before local taxes, with all the after-tax funds to be available to the parent in the form of dividends. The applicable taxes...

please only answer the blank, not the excel sheet Your father is 50 years old and will retire in 10 years. He expects to live for 25 years after he retires, until he is 85 . He wants a fixed...