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Past Announcements

• 04/21 Weather related There is an extreme weather alert around Northern NJ. Hopefully, it is nothing. In case however it causes a power or telecom disruption, it might affect Webex connectivity. This is to alert you in advance of that possibility. In such a scenario, there might be a disruption of office hours today. If it continues through Thursday, it you may use the already available voiceover for Subject 10 (beyond regular binary search trees, i.e. AVL trees) and part of Subject 11 of search trees of bounded height.
• 04/20 Voiceove: Sub 11 and 12 Some of you complained about sound issues re Sub11 and Sub12. I have done them again. Now i have them side by side with the previous voiceover. If sound quality is the same, they sounded fine on my laptop, beyond that i have no control. BTW if you see a 13 instead of a 12 ignore it.
• 04/16 PS 6 posted One more problem set unannounced in the syllabus with some solutions. And no more.
• 04/06 Final Exam Preliminaries The final exam is to be scheduled through ProctorU. The link would contain information about it. Final Exam Info
• 04/09 PS 5 posted One more problem set unannounced in the syllabus with some solutions.
• 04/09 Subject 9 handwritten notes I uploaded a corrected version of the notes used in voiceover. Page 3 referred 4 times to an SHL instead of SHR. The original pdf of the voiceover had four sticky (yellow) notes to correct that. The new one has a handwritten correction! Page 11 uses a Theta(n) instead of Theta (cubic of n) for the number of operation in matrix multiplication involving square matrices of order n. Also corrected by hand.
• 04/06 HW4 The last HW got posted in moodle ahead of time. It covers material we have already done, and may be one question related to what will be done on Thu. You may do the traditional way, or type in the answers to moodle. No hard proofs required.
• 04/06 Final Exam Sketchy Preliminaries My intent, as of now, is to have a proctored exam using ProctorU. If this goes ahead in the next few days, I will provide you with more information. Note that ProctorU requires that you have access to a laptop with camera, or have a separate camera, in addition to a microphone and headphones. Usually laptops have all of them attached. And ProctorU requires that you present to them a form of photo ID (note sure if it is an NJIT ID, or driver's license/ passport page).
• 03/27 HW3 note As it appears in the calendar (Handout 1: Syllabus) and also in the Week plan above it is due before noon of Apr 2. You still have the option of submitting it in the form of a PDF. However i also allow you to submit text in place of a pdf file. Thus in the textbox you can have problem number or subnumber (eg 1(a) or 2) followed by the answer. For special symbols you might use O or BigOh, Theta, BigOmega, littleOh, littleOmega as needed. For a more 'formal use' not needed i once created this document Writing MATH
• 03/26 PS4 posted In section C.
• 03/26 Videos and Moodle and mediaspace.njit.edu. From around 4pm today through around 4:50pm it was not possible to view videos through the moodle links of the course area. This had nothing to do with moodle or my links. The server had to deal with too many uploads of files (videos to be processed) and too many requests for views. As a result it was rejecting requests for views primarily.
• 03/25 TA/Grader/Assistant contact You may contact Sherry with email. If you want to talk with her during the office hour period, she suggested that you use Zoom. A webex session can be joined by anyone thus there is no privacy or some issues such as those in the notice below especially if you ask about questions re Exam 2 and she tries to show you a photo of the exam.
• 03/25 IMPORTANT (WARNING): WebEx connectivity audio issues Today, Wed, around 2:30pm Webex had connectivity issues: an audio, let alone a video, connection could not be achieved when webex participation was started either through the browser or the webex app on a platform (PC, tablet or otherwise). In case this happens again the following was suggested as a solution by CISCO: the host terminates and then restarts the meeting. Thus the participants will need to join it again. So bear this in mind if we have problems in the future (tomorrow or next week). An alternative might be the use of Zoom (the CS dept meeting took place on zoom, after a 15 minute struggle with Webex).
• 03/26 Tr2On-9: Class 3/26. The missing class of 3/12 is discussed in item Tr20n-4. On Thu after a 15min quick overview of QuickSort and DecisionTrees (read Subject 6 and listen to Subject 6 Part 1 and Part 2 voiceovers) we are going to move to Subject 6 Part 3 on Integer sorting. We might cover a bit of Subject 7. All Subject 6 Part 1,2,3 voiceover are available through moodle. A Subject 7 voiceover would be posted by then as well. I posted also HW3 in advance. It has questions related to Subject 4 and Subject 6.
• 03/21 Tr2On-8: Subject 6 online in moodle. In moodle you may access voiceovers for all three parts of Subject 6. Note that parts 1 and 2, and also Subject8-HITS-Pagerank were posted to substitute for the missing class of 3/12. Part 3 will be covered in (Webex online) class this coming Thu, but i am going to go through parts 1 and 2 very quickly in my introduction.
• 03/21 Midterm and Midterm class Performace Midterm grades (i.e. Ex2 grades) were made available in moodle. In section C you may find statistics for exam 2. Moreover a midterm class performance is available through link C.1.a, also in section C. Solutions were also posted.
• 03/19 Final Exam (Exam 3) date There was a typo in Handout 1 (Syllabus). It incorrectly stated that the Thu of the exam week was 5/12. IT IS 5/14. The online pdf and html syllabi have been corrected to reflect this. For archival purposes, you can still retrieve the prior version. Exam date may change pending NJIT decisions.
• 03/19 Tr2On-7: Course Delivery. A document is available both in moodle and Section C that outlines how the course will be run in the remaining 7 weeks. Please read it and be prepared for next week. An email was also sent out about this from moodle.
• 03/16 Subject 9-12. All remaining Subjects have been uploaded. Moreover handwritten notes have been posted. These are planned to be used either in Webex or in future voiceovers.
• 03/16 Subject 7 (Median and order statistics). It was rewritten to make it more inline with the other discussion of the textbook. New version has been reuploaded.
• 03/15 Tr2On-6: NJIT Remote presence. As of 18:13 tonight, non-essential faculty, staff have been advised to stay home and work remotely.
• 03/15 Tr2On-5: Past Spring Break. I will let you know during the break of the format of the class. I can tell you in advance that WebEx will be used during an online class (Thu 6-9pm) and during office hours.
• 03/15 Tr2On-4: Cancelled Class (3/12). As explained earlier PS4's posting will be delayed. You are not off the hook re the cancelled class. Study the following before next (online) class.
  • Subject 8: HiTS and PageRank In section C you may find the Subject that it is covered, and handwritten notes (available in pad) that would have been used in class in addition to Subject 8. These notes have a voiceover but its volume quality is not optimal. Use headphones to follow it. The voiceover link is available through moodle ONLY. But the notes are self-contained.
  • Subject 6: Part 1: QuickSort Subject 6 and handwrittend notes that were to be used. Read them. Voice-over might become available this week.
  • Subject 6: Part 2: Decision Trees Subject 6 and handwrittend notes that were to be used. Read them. Voice-over might become available this week.
• 03/15 Tr2On-3: NJIT guideline. NJIT guideline, as emailed by the Provost, has been posted in moodle. Read also the segments applicable to you. This explains eg Tr2On-1 as well. Note that the documents talks about canvas. This class uses moodle and will continue to use moodle. So replace canvas with moodle while you are reading the document.
• 03/16,03/15 Tr2On-2: Moodle Exam-2-Construct. In preparation for the dissemination of grades re Exam 2, i have created an Exam-2-Construct assignment in moodle. Do it online (i.e. no file submission, as explained) and the grade assigned would be your Exam 2 grade. If you want to inspect exam2, we will need to think of something after grading is formally over, and after the Break. The grade reported in moodle for Exam 2 is provisional. It will be finalized after the exams are in the physical possession of the instructor, This is going to happen when the University resumes normal operations. Thus the two week period to dispute a grade re Exam 2 starts then. If normal operations do not resume by mid April, we will think of something then, or the period extends further.
• 03/15 Tr2On-1: Office Hours after 3/22. The office hours will be moved completely to WebEx. More will follow. This means even if I will be at the office I will not be receiving students.
• 03/15 Tr2On-0: Terminology. Next class will mean next online class. As of now, an online class takes place at the same day, same time as a previously hald live class but not in the regular classroom but delivery is going to be through WebEx. More info will be posted in moodle. A week starts on a Sunday. Voiceover links are only available in and through moodle.
• 03/15 Reorganization Course Web-page and Update All past announcements will still be made available through the 'Past Announcement' link below. However a subset of the announcements related to the transition to online (Tr2On) will be preceded by a Tr2On keyword.
• 03/15 Tr2On-5: Past Spring Break. I will let you know during the break of the format of the class. I can tell you in advance that WebEx will be used during an online class (Thu 6-9pm) and during office hours.
• 03/15 Tr2On-4: Cancelled Class (3/12). As explained earlier PS4's posting will be delayed. You are not off the hook re the cancelled class. Study the following before next (online) class.
  • Subject 8: HiTS and PageRank In section C you may find the Subject that it is covered, and handwritten notes (available in pad) that would have been used in class in addition to Subject 8. These notes have a voiceover but its volume quality is not optimal. Use headphones to follow it. The voiceover link is available through moodle ONLY. But the notes are self-contained.
  • Subject 6: Part 1: QuickSort Subject 6 and handwrittend notes that were to be used. Read them. Voice-over might become available this week.
  • Subject 6: Part 2: Decision Trees Subject 6 and handwrittend notes that were to be used. Read them. Voice-over might become available this week.
• 03/15 Tr2On-3: NJIT guideline. NJIT guideline, as emailed by the Provost, has been posted in moodle. Read also the segments applicable to you. This explains eg Tr2On-1 as well. Note that the documents talks about canvas. This class uses moodle and will continue to use moodle. So replace canvas with moodle while you are reading the document.
• 03/15 Tr2On-2: Moodle Exam-2-Construct. In preparation for the dissemination of grades re Exam 2, i have created an Exam-2-Construct assignment in moodle. Do it online (i.e. no file submission, as explained) and the grade assigned would be your Exam 2 grade. If you want to inspect exam2, we will need to think of something after grading is formally over, and after the Break.
• 03/15 Tr2On-1: Office Hours after 3/22. The office hours will be moved completely to WebEx. More will follow. This means even if I will be at the office I will not be receiving students.
• 03/15 Tr2On-0: Terminology. Next class will mean next online class. As of now, an online class takes place at the same day, same time as a previously hald live class but not in the regular classroom but delivery is going to be through WebEx. More info will be posted in moodle. A week starts on a Sunday. Voiceover links are only available in and through moodle.
• 03/15 Reorganization Course Web-page and Update All past announcements will still be made available through the 'Past Announcement' link below. However a subset of the announcements related to the transition to online (Tr2On) will be preceded by a Tr2On keyword.
• 03/12@16:34 Exam 2 grade When Exam 2 grading is completed (sometime this weekend), if you want to review the grade itself, goto moodle there a "Exam-2-Construct' there and submit some online text (10 words max eg YES). A grade would be assigned equal to your Exam 2 grade. Paper copy management is to be determined.
• 03/12@16:48 Subject 8 supplement A supplement to Subject 8 that is handwritten has been posted in Section C as pdf. The voice-over is available as a linke in moodle. The volume however is not that hight. I suggest that you use headphones to listen to it. Contacting media services is difficult.
• 03/12@10:08 PS4 PS4 will be posted after the break and not today.
• 03/11@22:12 Covid-19 UPDATE (ITEM 2) The Provost announced a few hours ago (after 6pm) that classes are cancelled for the rest of this week. This means there would be NO class tomorrow Thu 12 Mar. NJIT is still open; therefore i will hold regular office hours tomorrow, unless something currently unexpected happens. The plan was to cover material of the second option of the PrP tomorrow in class. Tomorrow morning i will be preparing some impromptu notes re the second option of the Prp and also include voice over using a program named Kaltura. This would approximate what I was planning to do in class. As soon as this is ready, I will post information on this page with instructions for retrieval. We are waiting for some guidance from NJIT. As soon as this becomes available to us/me, I am going to provide you with more information.
• 03/10@13:21 NJIT President's email re NJIT's Covid-19 response (ITEM 1) Thursday's class will be held as scheduled, based on current information. (Class cancelled.) As of now, office hours will be held as scheduled (syllabus). If there are more than one students at the office at the same time, I will ask only one student to enter the office and meet me and the other students should be at a safe distance of at least 10 feet. I will give each present student a 10-min block for round-robin discussion, renewable for the still present students. Hopefully it will not be needed, given that the midterm has already been held. More will follow. I plan, after the BREAK, to generate voiceovers of the remainings Subject notes using an NJIT program named Kaltura. For office hours after the BREAK, I may also utilize WebEx. If you plan to wear a mask or gloves you do not need to ask for permission and neither be embarassed nor be apologetic about it.
• 03/05 Subject (Sub) 8 has been posted; some of the material of it related to Option 2 of the PrP will be covered tonight; following that we would resume coverage of material from Sub 6 and 7 and then resume coverage of Sub 8.
• 03/05, 02/27 Midterm Exam (aka Ex2) Logistics in Handout 1 (Syllabus). Scheduled for Mar 5 (next Thu). Open-textbook as specified in Handout 1. Will cover Subjects 1-5; from 5 whatever will be covered in class tonight. For textbook chapters read corresponding cover pages of individual subjects. There will be class after the exam: material related to option 2 of the PrP will be covered as well.
• 02/25 Web-page connectivity Some time yesterday the course web-page was inaccessible. The (NJIT) problem was resolved around 5am today. Download material from the course web-page instead of expecting that all of it would be there and accessible instantly.
• 02/20 HW2 A new HW2 has been posted in moodle.
• 02/20 PS3 A new problem set with solutions has been posted in moodle.
• 02/20 Exam 1 Exam 1 has been graded. It will be returned during class on Thu around 7:35pm. Statistics are available in Section C. Sample solutions will be posted later this week (weekend).
• 02/06 PS2 Problem Set 2 has been posted. Some of its problems can be solved using techniques already introduced in class but some other problems can be solved efficiently with techniques that will be introduced next week or later. (Note that in this item I am referring to PS2 not a HW2.)
• 02/04 Exam Seating Arrangements The exam seating arrangemented have been posted in Section C1.b. Use the last three digits of your NJIT ID, and some characters of your first name (NJIT's view) to figure out your exam number. Then locate your position in the class layout.
• 01/29 HW1 The first homework has been posted in moodle one day ahead of the scheduled posting. Submission is through moodle in pdf; for file conventions see Handout 2. Do not forget to press the submit button. Due date is before noon of Thu 6 Feb.
• 01/24 Materials posted The PrP (Programming Project) is available in moodle and also Section B. A Problem Set with solutions is available in Section C. Several subjects that will be covered in the first few weeks of classes have been posted in moodle. What a subject is, it is described in Handout 0. Handout 0 (without the Section C password), Handout 1 (Syllabus) and other Handouts are available in Section B. In moodle, you may also find a First610.txt file that includes the protocol for instructor contact for verification of presence purposes for those not present in the first class.
• 01/24 Verification of Presence Data collected during the class have been inserted into Banner before noon Friday (today). Note that there six names appearing in the roster who did not complete the signup list nor have they contacted the instructor as of today Friday.
• 12/27 Under construction Material changes frequently. This course will be using moodle.
• No announcements Come back in January.