Problem 5. (12 points) Bayes' Theorem is a popular tool for spam filtering. You are asked...
Problem 5. (12 points) Bayes' Theorem is a popular tool for spam filtering. You are asked to design a spam filtering algorithm based on whether certain words appear in an email. You were given 1,000 randomly selected emails that entered an email server. You examined these emails and manually labeled each one either as spam or ham (i.e., non-spam). You found that 400 emails are spam and 600 are ham. In these 400 spam emails, you found 200 of thenm...
Problem 1 (Bayes theorem and spam filters) Suppose you have develop a new algorithm to detect spam in an incoming email message. if the email is spam, there is a 98% chance your algorithm will detect it. On the other hand, if no spam is present, there is a 90% chance the algorithm will indicate that the message is not spam. Suppose that roughly 10% of all your email is spam. a) What is the probability a randomly chosen message...
How can we assess whether a project is a success or a
failure?
This case presents two phases of a large business transformation project involving the implementation of an ERP system with the aim of creating an integrated company. The case illustrates some of the challenges associated with integration. It also presents the obstacles facing companies that undertake projects involving large information technology projects. Bombardier and Its Environment Joseph-Armand Bombardier was 15 years old when he built his first snowmobile...