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2 years ago

Choose the correct sequence for classifier building from the following.

Computers and Technology

1 answer:

Alekssandra [29.7K]2 years ago

8 0

Answer:

Explanation:

First, we need to initialize the classifier.

Then, we are required to train the classifier.

The next step is to predict the target.

And finally, we need to evaluate the classifier model.

You will find different algorithms for solving the classification problem. Some of them are like decision tree classification etc.

However, you need to know how these classifier works. And its explained before:

You need to initialize the classifier at first.

All kinds of classifiers in the scikit-learn make use of the method fit(x,y) for fitting the model or the training for the given training set in level y.

The predict(x) returns the y which is the predicted label.And this is prediction.

For evaluating the classifier model- the score(x,y) gives back the certain score for a mentioned test data x as well as the test label y.

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You need to design a data storage scheme for Hayseed Heaven library data system. There are several hundred thousand large data r

Alekssandra [29.7K]

Answer:

Make use of hash tables

Explanation:

The appropriate thing to use for this should be a hash table.

A Hash Table can be described as a data structure which stores data in an associative manner. In a hash table, data is stored in an array format, where each data value has its own unique index value. Access of data becomes very fast if we know the index of the desired data. So we can perform Hashing on ISBN Number since its unique and based on the Hash Function w ecan store the Information record.

There is no requirement for printing the file in order - HashTables dont store the data in order of insertions, so no problems with that

It becomes a data structure in which insertion and search operations are very fast irrespective of the size of the data. So Querying books details can be fast and searching will take less time.

It can also be pointed out that it wont be too expensive for Hardware implemtation as HashTables stores data based on Hash Functions and memory consumption is also optimal which reduces memory wastages.

7 0

2 years ago

Design a GUI program to find the weighted average of four test scores. The four test scores and their respective weights are giv

Alexus [3.1K]

Answer:

I am writing partial code in c++ to calculate weighted average. The weighted average should be calculated based on multiplying the test score and its respective weight and finally add all the test score.

Explanation:

int arrtestscore[100];

int arrweight[100];

int n;

double weightedavg;

cout<<”Enter the number of test score for which weighted average needs to be calculated”;

cin>>n;

for(int x = 0; x <n;x++)

{

 cout<<”Enter test score :” + (x+1) ;

 cin>>arrtestscore[x];

 count<<”Enter the respective weight:”;

 cin>>arrweight[x];

}

for (int i=0; i<n;i++)

{

 weightedavg = weightedavg + (arrtestscore[i] * arrweight[i])

}

cout<<”weighted average = “ <<weightedavg; 

3 0

2 years ago

Use the single-server drive-up bank teller operation referred to in Problems 1 and 2 to determine the following operating charac

elena-s [515]

Answer:

This question is incomplete, here's the complete question:

1. Willow Brook National Bank operates a drive-up teller window that allows customers to complete bank transactions without getting out of their cars. On weekday mornings, arrivals to the drive-up teller window occur at random, with an arrival rate of 24 customers per hour or 0.4 customers per minute. 3. Use the single-server drive-up bank teller operation referred to in Problems 1 to determine the following operating characteristics for the system: a.) The probability that no customers are in the system. b.) The average number of customers waiting. c.) The average number of customers in the system. d.) The average time a customer spends waiting. e.) The average time a customer spends in the system. f.) The probability that arriving customers will have to wait for service.

Explanation:

Arrival rate \lambda = 24 customers per hour or 0.4 customers per minute

Service rate \mu = 36 customers per hour or 0.6 customers per minute (from problem 1)

a.) The probability that no customers are in the system , P0 = 1 - \lambda / \mu

= 1 - (24/36) = 1/3 = 0.3333

b.) The average number of customers waiting

Lq = \lambda^2 / [\mu(\mu - \lambda)] = 242 / [36 * (36 - 24)] = 1.33

c.) The average number of customers in the system.

L = Lq + \lambda / \mu = 1.33 + (24/36) = 2

d.) The average time a customer spends waiting.

Wq = \lambda / [\mu(\mu - \lambda)] = 24 / [36 * (36 - 24)] = 0.0555 hr = 3.33 min

e.) The average time a customer spends in the system

W = Wq + 1/\mu = 0.0555 + (1/36) = 0.0833 hr = 5 min

f.) The probability that arriving customers will have to wait for service.

= 1 - P0 = 1 - 0.3333 = 0.6667

3 0

2 years ago

How efficient would a 6-bit code be in asynchronous transmission if it had 1 parity bit, 1 start bit, and 2 stop bits?

Lana71 [14]

How efficient well if we are transmitting 6bits and we need 10 to transmit the 6 bits that would be 6/10 = .6 = 60% efficient.

7 0

2 years ago

Which of the following attributes of a website indicates a more reliable source for information?

scoundrel [369]

An attribute of a website that will indicate a more reliable source of information is when the site ends in ".edu". It is a top-level domain for education. It would mean that this particular site is linked to universities, colleges or other educational sites thus it gives more information that is real and factual.

3 0

2 years ago