Common Mistakes in Question Extraction (And How to Fix Them)

Even though VEGA AI does a great job extracting questions, some formatting issues and small errors can happen especially when working with PDFs or scanned documents.

Here’s a complete list of the most common mistakes, how often they happen, and what you can do to fix or avoid them.

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Formatting & Layout Issues

Issue	What Happens	How Often?	How to Fix	Things to Watch Out For
1. Italics Not Detected	Italic words don’t appear italic after upload.	~95%	Use *this is italic* in the editor.	Italics won’t show up from PDFs. Add formatting yourself using LaTeX or manually.
2. Bold Not Detected	Bold text becomes regular text.	~95%	Use **this is bold** in the editor.	Bold words may lose meaning. Add bold formatting manually.
3. Underline Not Detected	Underlined words are not preserved.	~95%	Use \underline{your text} with LaTeX or in Mathpix.	Important underlined parts might go missing. Always re-check and add them back.
4. Fill in the Blanks Misformatted	Blanks appear as {qquad} instead of empty lines.	~95%	Replace {qquad} with __________.	{qquad} is hard to read. Always replace with blank lines manually.

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Answer & Option Accuracy Issues

Issue	What Happens	How Often?	How to Fix	Things to Watch Out For
5. Wrong Option Marked as Correct	The AI may mark the wrong option as correct.	~30–40%	Double-check with your original answer key.	Never assume the AI-selected answer is right. Always verify.
6. Incorrect Solution Generated	The explanation doesn’t match the correct answer.	~40–50%	Review and rewrite the explanation if needed.	AI explains the answer you select as correct — if that’s wrong, the explanation will also be wrong.

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Tagging & Categorization Issues

Issue	What Happens	How Often?	How to Fix	Things to Watch Out For
7. Wrong Subject or Topic	The question is placed in the wrong subject or has no topic.	~40%	Choose the correct subject/topic manually in the editor.	Especially important for mixed-topic questions. Check and update tags carefully.

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Image & Option Issues

Issue	What Happens	How Often?	How to Fix	Things to Watch Out For
8. Image Not Extracted Properly	Images might not appear or may be blurry.	~0–5%	Upload the image again directly while editing the question.	Always preview the question and make sure images are showing correctly.
9. Options Missing After Extraction	One or more choices don’t show up.	~2–3%	Use the "Edit Question" tool to add missing options.	Do a quick check of every question’s options before saving.

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✅ Best Practices

• Choose correct question type before uploading or extracting.

• Preview and verify all extracted questions — never assume correctness.

• Avoid uploading cluttered PDFs; one clean question per image/page works best.

• Use LaTeX/Markdown to fix visual formatting where needed.

• Tag subject/topic accurately to organize and locate questions efficiently.

• Follow optimal extraction guidelines to minimize errors and maximize accuracy.