Re: Mark Correction

Lighton Phiri

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Sep 26, 2025, 4:23:43 PM9/26/25

to Joshua Musukambale, CSC 4792: Data Mining and Warehousing

Hello Joshua (and Everyone),

Marking guide is available at: https://docs.google.com/document/d/e/2PACX-1vSrPMDFWiS4DNsi4l9G3z6tPdnGrXVhJTBQc2EEHSPLJBZkoFzPsSqwol8uqWTFoFQSInqDK1Fp7YLW/pub

Best wishes,
Lighton

-- 
Lighton Phiri, PhD
Lecturer and Researcher

Telephone: +26 096 1352662
Email: lighto...@unza.zm
DataLab: https://datalab.unza.zm
EMI Project: https://emi.org.zm
UNZA: https://www.unza.zm

University of Zambia
Great East Road Campus 
Lusaka, Zambia 10101
--

On Fri, 26 Sept 2025 at 22:16, Joshua Musukambale <joshua.mu...@cs.unza.zm> wrote:

Good Evening Sir. I wanted to Kindly ask if you can Provide the Marking Key for the Test 1 We wrote, so that it helps us with the Revisions. Thank You
On Sat, 23 Aug 2025, 5:12 pm Joshua Musukambale, <joshua.mu...@cs.unza.zm> wrote:
Thank You sir.
On Sat, 23 Aug 2025 at 10:02, Lighton Phiri <lighto...@unza.zm> wrote:
Hello Joshua,

Your Lab #1 score has been updated.
Best wishes,
Lighton

-- 
Lighton Phiri, PhD
Lecturer and Researcher

Telephone: +26 096 1352662
Email: lighto...@unza.zm
DataLab: https://datalab.unza.zm
EMI Project: https://emi.org.zm
UNZA: https://www.unza.zm

University of Zambia
Great East Road Campus 
Lusaka, Zambia 10101
--
On Sat, 23 Aug 2025 at 09:40, Joshua Musukambale <joshua.mu...@cs.unza.zm> wrote:
2021418821. Sir
On Sat, 23 Aug 2025, 9:38 am Lighton Phiri, <lighto...@unza.zm> wrote:
Hello Joshua,

Thank you for flagging this.

Please share your Student ID so we can fix this.
Best wishes,
Lighton

-- 
Lighton Phiri, PhD
Lecturer and Researcher

Telephone: +26 096 1352662
Email: lighto...@unza.zm
DataLab: https://datalab.unza.zm
EMI Project: https://emi.org.zm
UNZA: https://www.unza.zm

University of Zambia
Great East Road Campus 
Lusaka, Zambia 10101
--
On Sat, 23 Aug 2025 at 09:33, Joshua Musukambale <joshua.mu...@cs.unza.zm> wrote:

Good Morning Sir, attached is the marked script for lab one, I got the (ii) But the final Score was recorded as a 0 and it's appearing on the CA spread sheet you uploaded. My names are Musukambale Joshua

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Jehu Mtine

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Sep 27, 2025, 3:27:00 AM9/27/25

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Hello Dr. Lighton,

The marking guide has :

iii) Creating a horizontal barplot, using the DataFrame var_df (created in (i)) with only the “text” field and all the reactions [4]

> import matplotlib.pyplot as plt

> plt.barh(["likes", "ahah", "love", "wow", "sigh", "grrr"], [var_df["likes"].sum(), var_df["ahah"].sum(), var_df["love"].sum(), var_df["wow"].sum(), var_df["sigh"].sum(), var_df["grrr"].sum()])

> plt.show()

and you plot the sums however the question paper had:

Creating a horizontal barplot, using the DataFrame var_df (created in (i) showing the average counts for each of the reactions)

I ask if you could clarify on that and as to the reason why I wasn't marked here(first image)

--
CSC 4792: Data Mining and Warehousing
Department of Computing and Informatics
University of Zambia
P.O. Box 32379, Lusaka 10101, Zambia
Email: csc...@unza.zm
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Jacob Mulule

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Sep 27, 2025, 4:58:39 PM9/27/25

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Hey Doc,

After reviewing the Continuous Assessment tracker, I noticed a few issues I would like bring to your attention

Marks for individual group selection,group selection, group|git+notebook, group dataset and group implementation were not allocated in the tracker
The calculation of the overall mark for Quiz 2 appears to be incorrect, it was recorded as 2,but based on the marking scheme it should be 2.5
Lastly I would like you to take a look at question 1(iii) of the quiz 2 I will attach at the bottom
kind regards.

From: csc...@unza.zm <csc...@unza.zm> on behalf of Lombe Mulenga <lombe....@cs.unza.zm>
Sent: Saturday, September 27, 2025 9:59:23 AM
To: csc...@unza.zm <csc...@unza.zm>
Subject: Re: [CSC 4792] Re: Mark Correction

Hello Dr Lighton,

The grade on my test paper seems to have not been calculated correctly, or maybe there's a way you calculated the total but I got 30.75 of 40 but my percentage is 61.5 and not 76.

Asking for clarity here or maybe it was an error.

Image below:

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--
CSC 4792: Data Mining and Warehousing
Department of Computing and Informatics
University of Zambia
P.O. Box 32379, Lusaka 10101, Zambia
Email: csc...@unza.zm
Web: https://groups.google.com/a/unza.zm/g/csc4792
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IMG_2808.jpeg

Jacob Mulule

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Sep 30, 2025, 7:53:36 AM9/30/25

to csc...@unza.zm

IMG_2808.jpeg

Lighton Phiri

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Oct 4, 2025, 3:11:21 PM10/4/25

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Hello Jacob,

## 1. Marks for individual group selection,group selection, group|git+notebook, group dataset and group implementation were not allocated in the tracker

You have NO marks for group selection because your group opted not to form a group before the August 5 2025 deadline: see numerous emails circulated. You also need to chat to your colleagues about this
You were initially NOT graded for the Github component because your group, AGAIN, decided not to share the Github repository when the grading was being performed: the scores for this component have since been updated. Please check and confirm with us

## 2. The calculation of the overall mark for Quiz 2 appears to be incorrect, it was recorded as 2,but based on the marking scheme it should be 2.5

See previous email: this score has been adjusted from 2.0 to 2.5

## 3. Lastly I would like you to take a look at question 1(iii) of the quiz 2 I will attach at the bottom

We have looked at this once more: the solution is syntactically incorrect

Best wishes,
Lighton

-- 
Lighton Phiri, PhD
Lecturer and Researcher

Telephone: +26 096 1352662
Email: lighto...@unza.zm
DataLab: https://datalab.unza.zm
EMI Project: https://emi.org.zm
UNZA: https://www.unza.zm

University of Zambia
Great East Road Campus 
Lusaka, Zambia 10101
--

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Ezra Ngondo

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Oct 4, 2025, 4:09:59 PM10/4/25

to csc...@unza.zm

Good evening sir. Concerning assignment of marks for notebook and datasets submission you didn't give us any marks despite us giving the github link to our notebook. Innocent previously shared with you our notebook via GitHub link as you requested during the presentations but you didn't give us any marks there. Here is the GitHub link he shared with you

https://github.com/Ezra-11/knowledge-level-of-wikipedia

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Lighton Phiri

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Oct 5, 2025, 12:09:44 PM10/5/25

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Hello Ezra,

You really want to find time to check the spreadsheet tracker: details of Project Team #32 are available.

Best wishes,
Lighton

-- 
Lighton Phiri, PhD
Lecturer and Researcher

Telephone: +26 096 1352662
Email: lighto...@unza.zm
DataLab: https://datalab.unza.zm
EMI Project: https://emi.org.zm
UNZA: https://www.unza.zm

University of Zambia
Great East Road Campus 
Lusaka, Zambia 10101
--

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