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Formative Quiz on Presentation by F.San and Jyri

Last updated over 2 years ago

10 Nsɛmmisa

Hyɛ no nsow a efi ɔkyerɛwfo no hɔ:

Prepared for ELEC-E5531

Akwankyerɛ

Please answer the questions below.

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Asemmisa {{asɛmmisaAhyɛnsode}}

1.

Which of the following is NOT a common symptom of ataxia?

Slurred speech

Difficulty with balance and coordination

Loss of vision

Tremors in the arms and legs

Asemmisa {{asɛmmisaAhyɛnsode}}

2.

Why did the researchers of this paper use low-pass Chebishev filter for pre-processing?

To detect speech boundaries

To reduce all the noise above 1 kHz

To fine tune the threshold short-term energy

Asemmisa {{asɛmmisaAhyɛnsode}}

3.

One of the features chosen was “spectral centroid”. What does that “spectral centroid” refer to?

The measure of spectral density.

The point where most of signal energy is contained.

The highest point in a frequency spectrum.

The range of frequencies covered by a signal.

Asemmisa {{asɛmmisaAhyɛnsode}}

4.

Familiarize yourself with the speech of an ataxia person by listening to this 1 minute video.

I've watched it.

I didn't watch it.

Asemmisa {{asɛmmisaAhyɛnsode}}

5.

Based on this video, how long did it take for Tallulah to be diagnosed with ataxia?

3 months

1 year

3 years

10 years

Asemmisa {{asɛmmisaAhyɛnsode}}

6.

What was a limitation of this study?

Lack of variability of speech disturbance score

Small number of available subjects

Sometimes same clinical scores were used for different classes (e.g. healthy & low severity)

All of the above

Asemmisa {{asɛmmisaAhyɛnsode}}

7.

Why do we need a AI-powered method to diagnose ataxia?

For some patients, it takes so long to be diagnosed with traditional methods.

Expert listener might sometimes be wrong.

Every expert listener rates the parameters differently (rater variability).

For monitoring, patients need to go to clinic frequently, which is inconvenient.

In countries where free healthcare is not provided, frequent visits may be costly.

Ataxia can only be diagnosed with AI.

Asemmisa {{asɛmmisaAhyɛnsode}}

8.

Which was not one of the performance metrics used in the study?

Recall

R2 value

Precision

F1 score

Accuracy

Asemmisa {{asɛmmisaAhyɛnsode}}

9.

Which one of the options is wrong for the model described in the paper?

It can sometimes confuse low severity patients with high severity patients.

It can sometimes confuse healthy patients with low severity patients.

It can sometimes confuse healthy patients with high severity patients.

Asemmisa {{asɛmmisaAhyɛnsode}}

10.

Listen this ataxia person's speech. Then compare your own speech with it. Write down 3 differences.