# 826F25 index page

https://www.cs.cmu.edu/~christos/courses/826.F25/#Project

### Carnegie Mellon University  
15-826 Multimedia and Data Mining  
Fall 2025 - [Christos Faloutsos](https://www.cs.cmu.edu/~christos)  
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[Course info](https://www.cs.cmu.edu/~christos/courses/826.F25/#CourseInformation)
  * [ Syllabus ](https://www.cs.cmu.edu/~christos/courses/826.F25/syllabus.html)
  * [ Schedule and slides](https://www.cs.cmu.edu/~christos/courses/826.F25/schedule.html)
  * [ Reading list ](https://www.cs.cmu.edu/~christos/courses/826.F25/reading_list.html)
  * [Homeworks](https://www.cs.cmu.edu/~christos/courses/826.F25/#Homeworks)
  * [Project](https://www.cs.cmu.edu/~christos/courses/826.F25/#Project)
  * [Exams](https://www.cs.cmu.edu/~christos/courses/826.F25/#Exams)
  * [Late Policy](https://www.cs.cmu.edu/~christos/courses/826.F25/#Late_Policy_-_for_all_deliverables:)
  * [Regrade-request policy](https://www.cs.cmu.edu/~christos/courses/826.F25/#Regrade-request_policy_)

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###  **** NEWS and ANNOUNCEMENTS **** 
  * *****11/23***** : Finalized study guide for final exam is [out](https://www.cs.cmu.edu/~christos/courses/826.F25/fe-guide.html).
  * 11/23 : HW4 solutions are [out](https://www.cs.cmu.edu/~christos/courses/826.F25/HOMEWORKS/hw4-sols.pdf). 
  * 11/20: Dataset deletion confirmation [form](https://www.cs.cmu.edu/~christos/courses/826.F25/PROJECT/dd_confirmation.pdf). 
  * 11/14: [ HW4 ](https://www.cs.cmu.edu/~christos/courses/826.F25/HOMEWORKS/hw4-clean.pdf) is out (dataset and code: [ here ](https://www.cs.cmu.edu/~christos/courses/826.F25/HOMEWORKS/hw4_data/)). 
  * 11/02: [HW3 solutions](https://www.cs.cmu.edu/~christos/courses/826.F25/HOMEWORKS/hw3-sols.pdf) are out. 
  * 10/03: [ HW3 ](https://www.cs.cmu.edu/~christos/courses/826.F25/HOMEWORKS/hw3-clean.pdf) is out 
  * 10/02: Mid-term exam guide is [here](https://www.cs.cmu.edu/~christos/courses/826.F25/mt-guide.html). 
  * 09/23: [HW2 solutions](https://www.cs.cmu.edu/~christos/courses/826.F25/HOMEWORKS/hw2-sols.pdf) are out. 
  * 09/12: [ HW2 ](https://www.cs.cmu.edu/~christos/courses/826.F25/HOMEWORKS/hw2-clean.pdf) is out 
  * 09/09: [ Homework1 solutions ](https://www.cs.cmu.edu/~christos/courses/826.F25/HOMEWORKS/hw1-sols.pdf) are out. 
  * 09/05: Project description is [out](https://www.cs.cmu.edu/~christos/courses/826.F25/proj.html). 
  * 08/29: [ HW1 ](https://www.cs.cmu.edu/~christos/courses/826.F25/HOMEWORKS/hw1-clean.pdf) is out 
  * 08/24: Welcome to the class!  



* * *
###  Course information
  * Instructor: [Christos Faloutsos](https://www.cs.cmu.edu/%7Echristos/), ( _christos @ andrew_ ) 
    * GHC 7003, cell ph (412)-576.79 three two
    * office hours: **Tue 2-3pm, on zoom** ; and by appointment (calendar: [ here](https://calendar.google.com/calendar/embed?src=christos%40andrew.cmu.edu&ctz=America%2FNew_York))  

  * Class meets: **F 2:00-4:50pm, GHC 4303  
**
  * Canvas url: [ https://canvas.cmu.edu/courses/49449 ](https://canvas.cmu.edu/courses/49449)
  * URL for this very web page: [www.cs.cmu.edu/~christos/courses/826.F25](https://www.cs.cmu.edu/~christos/courses/826.F25/)


* * *
###  Homeworks
  * [HW1](https://www.cs.cmu.edu/~christos/courses/826.F25/HOMEWORKS/hw1-clean.pdf) is out; and [solutions](https://www.cs.cmu.edu/~christos/courses/826.F25/HOMEWORKS/hw1-sols.pdf). 
  * [HW2](https://www.cs.cmu.edu/~christos/courses/826.F25/HOMEWORKS/hw2-clean.pdf) is out; and [solutions](https://www.cs.cmu.edu/~christos/courses/826.F25/HOMEWORKS/hw2-sols.pdf). 
  * [HW3](https://www.cs.cmu.edu/~christos/courses/826.F25/HOMEWORKS/hw3-clean.pdf) is out; and [solutions](https://www.cs.cmu.edu/~christos/courses/826.F25/HOMEWORKS/hw2-sols.pdf). 
  * [HW4](https://www.cs.cmu.edu/~christos/courses/826.F25/HOMEWORKS/hw4-clean.pdf) is out - dataset and code: [here](https://www.cs.cmu.edu/~christos/courses/826.F25/HOMEWORKS/hw4_data/)); and [solutions](https://www.cs.cmu.edu/~christos/courses/826.F25/HOMEWORKS/hw4-sols.pdf). 


* * *
###  Project
  * [Description](https://www.cs.cmu.edu/~christos/courses/826.F25/proj.html)
  * [Form](https://www.cs.cmu.edu/~christos/courses/826.F25/PROJECT/dd_confirmation.pdf) to sign, to confirm the deletion of dataset copies and derivatives (new, 11/20/2025)


* * *
###  Exams
  * Midterm exam: study guide is [here](https://www.cs.cmu.edu/~christos/courses/826.F25/mt-guide.html)
  * Final exam: DRAFT study guide is [here](https://www.cs.cmu.edu/~christos/courses/826.F25/fe-guide.html). 


* * *
###  Late Policy - for all deliverables: 
  * No delay penalties, for medical/family/etc emergencies (bring written documentation, like doctor's note).
  * Each person has **6 'slip days'** total, for the whole semester. 
    * That is, no questions asked, if the total delay is 4 days or less.
    * 5% per day of delay, after that
  * To use slip days: 
    * **upload** your material to canvas 
    * email the instructor with the subject line: 15-826 Late Homework Submission (HW #)  

    * specifying the count of slip days you use, as well as the count of slip days left.


###  Regrade-request policy 
  * Regrade requests should be done in writing/email
  * within2 days  

  * to the instructor, specifying 
    1. thequestionunder dispute (e.g., 'HW1-Q.2.b')
    2. the extra points requested (e.g., '2 points out of 5')
    3. and the justification (e.g., 'I forgot to eliminate mirror pairs, but the rest of my answer was correct')

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_Last modified Nov. 23, 2025, by Christos Faloutsos_