Quiz 1 solutions

Re: Quiz 1 solutions

by Mohammadparham Bateni -
Number of replies: 0
Hi,

For the first question, I believe I may have partly addressed your point, but I now see where the confusion lies. The difference between “now” and “yesterday” can indeed be viewed as semantic, since the issue comes from the mismatch in meaning between the time adverb (yesterday) and the verb tense (is playing). However I believe one could argue that the verb form itself makes the sentence grammatically incorrect and hence this sentence has syntactic issues. If we consider that the issue of this sentence lies in the verb tense ('is' to 'was') then the answer is different with when we assume the error lies in the adverb.

For the second question, I didn’t mean to suggest that the F1-score is the best metric, but rather that precision and recall, when taken individually, don’t provide a complete picture of the system’s performance. My point was that the F1-score is useful precisely because it combines both precision and recall and precision and recall are not indicative by themselves and that's why we need f1-score specially in this task where classes have the same importance.

I appreciate your help!

Best regards,