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Answer:
Personalization
Explanation:
Recommendation systems are becoming a powerful tool in our times today, from only shopping to healthcare provision. One major aspect of Recommender systems is Personalization.
Personalization is a concept of adjusting a service or product to greatly suit the customer. Personalization can be drawn by the information provided by the individual such as location, gender, marital status, etc. or drawn from other inferences retrieved from the customer, such as:
- the most clicked service category of a customer,
- customer browsing patterns or
- services or products previously obtained by a customer.
These inferences retrieved from customers can greatly improve customer satisfaction and get them drawn to the system.
Answer:
- To get the items of a dictionary and print them as a string, use the items() method to unpack the keys and values in a for and print or write them into a file.
for key, value in mydict.items():
print(f"{key}, {value}")
- To convert string from user input into dictionary;
mystring = input().split(" ") #assuming the words are separated by a space.
from word in mystring:
mydict[word] = mydict.get(word, 0) + 1
This would use the words in the string as the keys of the dictionary and the count of each word as the respective values.
Explanation:
A dictionary is a data structure in python used to store data in key-value pairs. The items are enclosed in curly braces and can be accessed with the key in dot or bracket notation.
Here's the full question;
<em>Assume the following partial declarations have been made, with default (no parameter) constructors for the classes.</em>
<em />
<em>public abstract class Player</em>
<em>public class ComputerPlayer extends Player;</em>
<em>public class SmartComputerPlayer extends ComputerPlayer;</em>
<em />
<em>Consider the following declarations.</em>
<em />
<em>I. ComputerPlayer playerA = new SmartComputerPlayer();</em>
<em>II. Player playerB = new SmartComputerPlayer();</em>
<em>III. Player playerC = new Player();</em>
<em />
<em>Which of these declarations will compile correctly?</em>
A.) I only
B.) II only
C.) III only
D.) I and II
E.) II and III
<u>Answer:</u>
<u>C)</u>
Explanation:
One of the rules of Java programming is that it must have a class which is a blueprint that informs about the behavior that the object of that class support.
If we go by the strict rules of Java programming only the class declaration;
Player playerC = new Player();
would compile correctly.
All other options would result in compiler error.
