Santa is worried about his employee relations, since christmas preparations have led to a lot of overtime. To make sure all the elves are happy, he wants to recruit some of them as complaint officers, with weekly meetings to report any complaints or worries to him. His worker elves W are pretty busy already, so Santa wants to task no more than k elves with this additional workload. Still, Santa wants to make sure that for as many elves e e W as possible, at least one of his friends (whose identities he knows) is a complaint officer. 1. Give an intuitive greedy algorithm that outputs k elves that will serve as compliant officers. 2. Prove that for large numbers of k the algorithm approximates a solution with ratio no more than (1 – 2).

Santa is worried about his employee relations, since christmas preparations have led to a lot of overtime. To make sure all the elves are happy, he wants to recruit some of them as complaint officers, with weekly meetings to report any complaints or worries to him. His worker elves W are pretty busy already, so Santa wants to task no more than k elves with this additional workload. Still, Santa wants to make sure that for as many elves e e W as possible, at least one of his friends (whose identities he knows) is a complaint officer. 1. Give an intuitive greedy algorithm that outputs k elves that will serve as compliant officers. 2. Prove that for large numbers of k the algorithm approximates a solution with ratio no more than (1 – 2).

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

What can you do to avoid becoming the "Man in the Middle"?
Metro has become one of the most important parts of our lives. Whether you are a student, a worker or anyone, we all travel through the metro train every day. Low fair prices, high frequency and comfortable rides made it very easier for us to travel from one point to another within the city in a very small time. The Metrobus Cards are durable and based on secure RFID technology. These cards can be purchased from the ticket office at each Metrobus Station, for a refundable security deposit of Rs 130 – provided that the card is returned in proper working condition. The Metrobus Card can also be purchased via TVM in Pakistan Metrobus System. People with Metrobus Cards having adequate balance, can proceed directly to the platforms at each station. Metrobus Card and its balance has no expiry. Metrobus Cards are to be tapped at the entry turnstile on the platform, retained during the journey and tapped again into the exit turnstile while exiting the platform. Travellers can recharge Metrobus…
You're a train engineer in charge of developing a modest, safety-critical train control system that has to be shown safe and secure. Your suggestion that formal approaches be employed in the creation of this system is received with skepticism by your boss. Write a paper outlining the advantages of formal methods and making a case for their application in this project?
One method for hiding technical limitations is to incorporate them into the game design. LPFs could be used to include temporal distortions instead of hiding communication delays. Create a game design that accomplishes this.
Q16 Generalization 3 Points You are building a simple feedforward network, and it's performing really well on the training set, but not very well on the test set. What are three things you can try to mitigate this problem? Enter your answer here Enter your answer here Enter your answer here
Why is it vital to have architecture? Suppose there is a project, and you draw it out both with and without any architecture. What kind of impact it will have on the product as a whole.
MS-Project. Looking at the task Install Carpet and Underlay you can see that it was planned to take the installer 8 hours at $35/hr. plus the price of the carpet and underlay for a planned task cost of $3,580. The task actually took the installer ten hours to complete the work instead of eight and the carpet cost a bit more. Calculate how must extra was paid for the carpet? $570.00 $500.00 $350.00 $70
If you were put in the position of having to choose between the waterfall technique and something that was more suited to the contemporary world, you may make the decision to go with the waterfall method.Which of the following modern iterative waterfall techniques do you think would be the best fit for your project? Do you get the impression that there is a solution to the problem that we are experiencing?
Consider that you are developing a project where people would choose to test themselves to go without using a computer for a fixed period of time. Describe how you would set up the project and why. What period of time would you set up? Why? Who would you recruit to participate? Why? What would you define as a computer or off limits? Why? Which of the following would be acceptable?Smartphones Having someone else use the computer for you? reading printouts? Using GPS?
Which one of the following are true statements about a critical path in a project? Knowledge of the critical path can be used to decide if any tasks in a project can be delayed without extending the length of time of the project. All tasks on the critical path must be completed before any other task in the same project can be started. Decreasing the times of tasks not on the critical path will not decrease the length of time of the project. There is only one critical path in any project.
When refactoring or revising a project, we make sure that we don't have to change the right code just to make the wrong code work again. This is a goal of which SOLID principle? (SRP, OCP, LSP, ISP, or DIP) The Single Responsibility Principle (SRP)The Open-Closed Principle (OCP)The Liskov Substitution Principle (LSP)The Interface Segregation Principle (ISP)The Dependency Inversion Principle (DIP)
Are there any perks to architecture? See how it may appear without and with architecture for a certain project. Do you know how it will affect the final product?