Do you see any problems with the choice of hash functions, Ask an Expert

Engineering

Do you see any problems with the choice of hash functions in Exercise 4.4.1? What advice could you give someone who was going to use a hash function of the form h(x) = ax + b mod 2^k?

Exercise 4.4.1

Suppose our stream consists of the integers 3, 1, 4, 1, 5, 9, 2, 6, 5. Our hash functions will all be of the form h(x) = ax+ b mod 32 for some a and b. You should treat the result as a 5-bit binary integer. Determine the tail length for each stream element and the resulting estimate of the number of distinct elements if the hash function is:

View complete question

Computer Engineering, Engineering

Category:- Computer Engineering
Reference No.:- M91970977

Have any Question?Write your Review or question?

Related Questions in Computer Engineering

At a certain temperature the equilibrium constant kc for

At a certain temperature, the equilibrium constant, Kc, for this reaction is 53.3. H2(g) + I2 (g) ------> 2HI(g) Kc = 53.3 At this temperature, 0.700 mol of H2 and 0.700 mol of I2 were placed in a 1.00-L container to rea ...

Using the following dataa sex- 7 males 1 female height-

Using the following data, A.) (Sex)- 7 males, 1 female. (Height)- 72,67,72,64,66,68,68,70. (Left or right handed)- 7 right handed, 1 left handed. Let's assume our class is truly representative of the population at large. ...

Suppose a punched card has 80 columns and 12 rowsa if any

Suppose a punched card has 80 columns and 12 rows. (a) If any number of holes can be punched in the card, how many different cards can there be. If more convenient, you may give your answer in the form of an expression. ...

Requirementswrite a java program that reads a set of

Requirements: Write a java program that reads a set of integer lattice points, prints out the ones on the boundry of the convex hull sorted left to right (ie by x-coordinate), and then accepts additional points and deter ...

Briefly explain the meaning of the t-test for regression

Briefly explain the meaning of the t-test for regression analysis. How can the "rule of two" be used to evaluate t-ratios?

Koh aq cuno32 aq precipitatekbr aq srno32 aq no

KOH (aq)+ Cu(NO3)2 (aq) = precipitate KBr (aq) + Sr(NO3)2 (aq) = no precipitate a) What are the possible products when solutions of KOH and Cu(NO3)2 are mixed? b) What are the possible products when solutions of KBr and ...

Eleven people have eleven different favorite numbers from 2

Eleven people have eleven different favorite numbers from 2 to 12. They all agree to participate in a 10,000-roll dice game where they bet $1 on their favorite number for each roll of two standard (fair) dice. A donor ki ...

Question lessons learned from the mirai botnet attack of

Question: Lessons learned from the Mirai Botnet attack of 2016 • Why was it so much more effective than previous BotNet designs? • What kind of mitigations would you recommend for protection? These two points must be ans ...

Jeff decides to start saving some money from this upcoming

Jeff decides to start saving some money from this upcoming month onwards. He decides to save only $500 at first, but each month he will increase the amount invested by $100. He will do it for 60 months (including the fir ...

Question read a sentence with period at the end display the

Question: Read a sentence with period at the end. Display the sentence so that all vowels are in uppercase sample I/O Enter a sentence: proud is self-respect. Output: prOUd Is sElf-rEspEct. I have written a c++ code for ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Computer Engineering Expert