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Date May 2021 Marks available 2 Reference code 21M.1.SL.TZ0.4
Level SL Paper 1 Time zone no time zone
Command term Identify Question number 4 Adapted from N/A

Question

Pepper

Pepper is a social robot that uses natural language processing, as well as voice recognition, to understand what is being said. Pepper can also identify basic human emotions by analysing verbal and non-verbal clues (see Figure 1).

Figure 1: Pepper the social robot

[Source: Wikipedia, 2019. Pepper (robot). [image] Available at:
https://en.wikipedia.org/wiki/Pepper_(robot). Accessed 21 March 2019.]

Pepper has multiple sensors and a battery that lasts for 12 hours and is equipped with wireless connectivity. Pepper is released in batches of a thousand, and they usually sell out immediately.

Software developers can create new apps for Pepper, as the robot has a generic profile. So far, Pepper has been successfully used on cruise ships, in homes in Japan, and with the elderly in the United Kingdom. However, Pepper could not answer questions from customers in supermarkets in some parts of the USA and Latin America.

Pepper uses machine learning to improve its natural language processing.

In addition to a voice sensor, identify two sensors that would be found in Pepper.

[2]
a.i.

Outline two reasons why Pepper could not answer a customer’s question in a supermarket.

[4]
a.ii.

Identify two advantages of using unsupervised learning to enable Pepper to improve its natural language processing. 

[2]
b.i.

Identify two disadvantages of using unsupervised learning to enable Pepper to improve its natural language processing.

[2]
b.ii.

Pepper is released in batches of a thousand, and they usually sell out immediately.

Explain one reason why Pepper is only released in relatively small batches.

[2]
b.iii.

King Robotics is planning to use social robots in schools. The robots will use a unique approach called care receiving. In this approach to teaching, the robot does not directly instruct the student; instead, the robot makes mistakes and asks the student for help to correct them. Early studies have found that children respond very positively to this approach. The robots will also be able to carry out direct teaching activities.

Evaluate the advantages and disadvantages of using social robots such as Pepper to support the care-receiving teaching approach as well as carry out direct teaching activities.

[8]
c.

Markscheme

Answers may include:

 

Award [1] for each sensor identified up to [3] marks.

a.i.

Answers may include:

 

Award [1] for each reason why Pepper could not answer a customer’s question in a supermarket and [1] for a development of that reason up to maximum of [2] marks.

a.ii.

Answers may include:

 

Award [1] for each advantage of using unsupervised learning identified up to [2] max.

b.i.

Answers may include:

 

Award [1] for each disadvantage of using unsupervised learning identified up to [2] max.

b.ii.

Answers may include:

 

Award [1] for identifying a reason why Pepper is released in small batches and [1] for a development of that reason up to [2] max.

b.iii.

Answers may include:

Advantages:

Disadvantages:

 

In part (c) of this question it is expected there will be a balance between the terminology related to digital systems and the terminology related to social and ethical impacts.

Keywords: innovation, learning, pedagogy, robot, social robot, autonomous, evolution, trust, automation, change, expression, identity, systems, values

 

Refer to SL/HL paper 1, part c markbands when awarding marks. These can be found under the "Your tests" tab > supplemental materials > Digital society markbands and guidance document.

c.

Examiners report

[N/A]
a.i.
[N/A]
a.ii.
[N/A]
b.i.
[N/A]
b.ii.
[N/A]
b.iii.
[N/A]
c.

Syllabus sections

Topic 3: Content » 3.3 Computers
Topic 3: Content

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