Question: Explain using a search tree why the cut in the following program has no effect on the solutions found to the query ancestor(X,bob). Does the

Explain using a search tree why the cut in the following program has no effect on the solutions found to the query ancestor(X,bob). Does the cut improve the efficiency at all? Why or why not?
ancestor (X, Y) :- parent (X, Z), ancestor (Z, Y). ancestor (X,

ancestor (X, Y) :- parent (X, Z), ancestor (Z, Y). ancestor (X, X) :- !. parent (amy, bob).

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Lets break down the program and analyze it using a search tree ancestorX Y ancestorX X parentamy bob ... 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

Students Have Also Explored These Related Programming Questions!

re Regular Languages and Finite Automata (a) Let L be the set of all strings over the alphabet {a, b} that end in a and do not contain the substring bb. Describe a deterministic finite automaton...

can someone solve this Modern workstations typically have memory systems that incorporate two or three levels of caching. Explain why they are designed like this. [4 marks] In order to investigate...

Briefly describe ASCII and Unicode and draw attention to any relationship between them. [3 marks] (b) Briefly explain what a Reader is in the context of reading characters from data. [3 marks] A...

A creative engineer suggests structuring the TLB so that not all the bits of the presented address need match to result in a hit. Suggest how this might be achieved, and what might be the costs and...

Let A, B be sets. Define: (a) the Cartesian product (A B) (b) the set of relations R between A and B (c) the identity relation A on the set A [3 marks] Suppose S, T are relations between A and B, and...

Please read chapter 6 and answer the questions and see the ( guide to answer number 3) For each case study, you will view the material as the student's teacher, read the information provided and...

Please read chapter 6 and answer the questions and see the ( guide to answer number 3) 1. Decide what assessment you would like to do to provide you with more information about the student, 2....

(a) In SystemVerilog, what is the difference between: (i) The ternary operator ? and if...then...else statements? [2 marks] (ii) always_ff and always_comb? [2 marks] (iii) Blocking, non-blocking and...

Have a C compiler which is ANSI conforming in all respects except that it has no facility for the definition, declaration or use of standard C structures. Outline a set of routines written in this...

resolved first by reducing the raw hash value modulo the size of the array and arranging that each array entry refers to the start of a linked list of (index,value) pairs. Retrieving a value from the...

Draw the tautomeric form of cytosine.

Explain how a traditional health insurance system may lead to over-consumption of health care services and procedures. How is this situation affected if a high deductible (perhaps $5000) were imposed...

During elicitation, stakeholders disagree on feature priorities. Which technique best resolves this conflict? Question 9 Answer a . Eliminate all contentious features. b . Impose the project manager...

Start with an initial string of zeros. Choose any digit of the string to flip. When a digit is flipped, its value and all those to the right switch state between 0 and 1. Given a target string of...

Fairways is a wholesale distributor of auto spare parts in UAE. Thus, peak sales occur in August due to Ramadan as shown in the company's sales budget for the third quarter, given below: Jul Aug Sept...

Silver Company makes a product that is very popular as a Mother's Day gift. Thus, peak sales occur in May of each year, as shown in the company's sales budget for the second quarter given below:...

An investment firm can invest in four financial instruments: Trade Credits, Bonds, Gold Stocks, and Construction loans. The income from each investment will be 7%, 11%, 19%, and 15% respectively. The...

1. The following topographic map (Map 3.1) is from a coastal area and features an interesting geological hazard in addition to the Ocean. Using a contour interval of 4o meters, label the elevation of...

true or flase : Cost center responsibility reports generally focus on the static budget variance

Refer to Problem 17-1. What would the additional funds needed be if the companys year-end 2005 assets had been $4 million? Assume that all other numbers are the same. Why is this AFN different from...

Table 19-1 lists foreign exchange rates for July 25, 2005. On that day, how many dollars would be required to purchase 1,000 units of each of the following: British pounds, Canadian dollars, EMU...

Does Starbucks have a lot of long-term debt? What are the chief ways in which Starbucks has financed assets? Exploring Starbucks Financial Statements Over the past decade, Starbucks coffee shops have...

The Vehicle Inventory and Use Survey (VIUS) has been conducted by the U.S. government to provide information on the number of private and commercial trucks in each state. The stratified random...

In Exercise 6 of Chapter 2, data on numbers of publications were given for an SRS of 50 faculty members. Not all departments were represented, however, in the SRS. The SRS contained several faculty...

The data in the file radon.dat were collected from 1003 homes in Minnesota in 1987 (Tate, 1988) in order to estimate the prevalence and distribution of households with high indoor radon...