- Gradstudents - mailman.cs.vt.edu

CRA - Annual Survey
by Coulson, Sara 17 Jan '25

17 Jan '25

The Computing Research Association (CRA) is interested in career development among students in computing fields. Our Computer Science Department also uses the survey's aggregate results to to understand how our program is serving our students and ways in which we can improve. You’re invited to complete the survey if you are a current undergraduate or graduate student completing courses or working towards a degree in Computer Science at Virginia Tech. Your input is valuable in helping us understand factors that contribute to academic retention and persistence, particularly within Virginia Tech’s Computer Science Department. In exchange for your time, you’ll have the chance to enter a raffle to win one of five hundred $25 Amazon gift cards! To complete survey, please follow the link below: https://cerp.co1.qualtrics.com/jfe/form/SV_e42au8zqmjbYvVI/?id=vt_cs Thanks in advance for your time and responses! [cid:91f7a27d-de85-4b0d-a849-8b14479176d9] Sara Coulson Director of Graduate Programs | Computer Science Torgersen 3210C 620 Drillfield Drive Blacksburg, VA 24061 scoulson1(a)vt.edu 540-231-0780

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PhD Qualifying Exam Q/A Session on January 15, 2025 (Wednesday)
by Ibn Arif, Kazi Hasan 15 Jan '25

15 Jan '25

Hello! Are you taking the PhD Qualifying Exam in the Spring 2025 semester? Do you have questions or concerns about the process? We have you covered! CS Grad Council is excited to announce an interactive Q/A session designed specifically for students preparing for the PhD Qualifying Exam in Spring 2025. This session will feature experienced speakers who have successfully taken the exam sharing their insights, tips, and advice. And you will have the opportunity to directly ask the fellow students who’ve been in your shoes! Date: January 15, 2025 Time: 11:30 AM – 1 PM Location (Zoom only): https://virginiatech.zoom.us/j/9119919119 Question? You can submit your questions ahead of time through - https://forms.gle/Vr3P9ukt4Jxovb4G9 Best, Hasan Secretary, CSGC 2024-25 -- Kazi Hasan Ibn Arif PhD Student at Virginia Tech Dept. of Computer Science LinkedIn<https://www.linkedin.com/in/kazi-hasan-ibn-arif-8b78a61a3?utm_source=share&…> | Google Scholar<https://scholar.google.com/citations?user=3OhNWLcAAAAJ&hl=en>

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FW: Advertising for Workshop Submission
by Kinder-Potter, Sharon 14 Jan '25

14 Jan '25

See below regarding a workshop. Sharon From: Gaurav, Ramashish <rgaurav(a)vt.edu> Sent: Tuesday, January 14, 2025 10:49 AM To: skpotter(a)cs.vt.edu Subject: Advertising for Workshop Submission Hello Sharon, Following is the link of an ICLR 2025 workshop, calling for paper submission in Large Language Models (LLMs). Can you please advertise it to the CS mailing list for graduate students? https://www.sparsellm.org/ Please let me know if I should contact someone else. Thank you! Regards, Ramashish

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Reminder: New course: Data Security and Privacy in the Age of AI
by Kantarcioglu, Murat 13 Jan '25

13 Jan '25

Dear All, I hope you had a wonderful winter break. I recently joined Virginia Tech as a full professor and will be offering a new course in the Spring 2025 semester. Title: Data Security and Privacy in the Age of AI (CS 5914) Time and Location: M-W: 4pm-5:15pm@D&DS 240 Description: This course provides essential tools for safeguarding sensitive data in AI applications while ensuring robust privacy protections. Topics covered include: fundamentals of Access Control, encryption-based methods for secure data processing, confidential computing, data anonymization, federated learning, differential privacy, and approaches to understanding and defending against privacy and security threats to AI models including Large Language Models. The course will include a combination of lectures and student-led presentations. I aim to encourage students to undertake novel class projects, which will account for 40% of the overall grade. For more details on the course syllabus, please visit the following course web page: https://www.kantarcioglu.net/courses/dspai25s.html If you are interested, please register! And if you have any questions, feel free to reach out to me at muratk(a)vt.edu Best Regards, Murat ==================================== Murat Kantarcioglu, Ph.D. Professor, and CCI Faculty Fellow Virginia Tech, Department of Computer Science www.kantarcioglu.net ==================================== Best Regards, Murat ==================================== Murat Kantarcioglu, Ph.D. Professor, and CCI Faculty Fellow Virginia Tech, Department of Computer Science www.kantarcioglu.net ====================================

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Graduate student funding update (your input needed!)
by Tauhidun Nabi, Syed 10 Jan '25

10 Jan '25

Dear CS Graduate Students, Happy New Year 2025! On behalf of the CS Graduate Council, we wish you a productive and successful year ahead. As we prepare for the Spring 2025 semester, we understand that some of you are still awaiting updates regarding funding. This situation is far from ideal, and the department is actively working to address the funding challenges. Below, we have compiled a few updates for your information: 1. As part of the department's continuous improvement efforts for GTA rankings, we have been asked to provide input for GTA positions. To gather your feedback, we invite you to complete the survey linked below. Your thoughts and insights are invaluable in shaping this process: Google Form Link<https://docs.google.com/forms/d/1yLXxqcBVr5Pp6TRRvrPcqcSap_f6aNyufcqkFFi7M_g> Please note that while our input may or may not directly influence the ranking process in the future (beyond Spring 2025), it will contribute to a more thoughtful and well-rounded approach. 1. At the last faculty meeting, Dr. Julien proposed a set of policies for the department going forward, to avoid funding situations like this in future semesters. If you have any questions or comments about these proposed directions, Dr. Julien welcomes your feedback. Kindly keep this document within the CS graduate student group. If you wish to share it outside the group for any reason, please seek permission from Dr. Julien. 1. For those looking for funding for this semester or upcoming semesters, Sara has compiled a list of funding sources, copied at the end of this email. If any of the positions align with your skills and interests, we encourage you to explore and apply for them. Thank you for taking the time to share your input on the GTA ranking process. We wish you all a wonderful semester ahead! On behalf of CS Graduate Council - Tauhid Nabi Vice President, CS Graduate Council PhD Student | SPIN Lab Computer Science | Virginia Tech Gilbert Place 4201 Blacksburg, VA, U.S. Portfolio<https://tauhidnabi.github.io/> | LinkedIn<https://www.linkedin.com/in/tauhidnabi/> [cid:a134674e-9642-445c-adc9-e5ea5e9a8ef2] -------------------------------------------------------------------- FUNDING RESOURCES Departmental Opportunities * Graduate Teaching Assistant (GTA) Positions: Students have secured GTA roles in the STAT, PHYS, and MATH departments. Graduate students interested in these positions should reach out to the Graduate Program Coordinator for each respective department. * Biological Sciences<https://www.biol.vt.edu/Graduates.html>: Applications for Graduate Teaching Assistantships<https://docs.google.com/forms/d/e/1FAIpQLSd03_d95_dT4MQoibTVtxs2WD4tcawcQvb…> are available for graduate students outside of the Biological Sciences program. Funding Sponsored by the Graduate School Visit this link<https://graduateschool.vt.edu/funding/funding-sponsored-by-the-graduate-sch…> for funding opportunities sponsored by the Graduate School. External Fellowship and Scholarship Opportunities * PEO International<https://www.peointernational.org/educational-support/international-peace-sc…> – International Peace Scholarship (IPS): Scholarships for international women pursuing graduate studies in the U.S. or Canada. * American Association of University Women – American Fellowship<https://www.aauw.org/resources/programs/fellowships-grants/current-opportun…>: Designed for women scholars. Applications are open from August to November. * California Institute of Technology (CalTech) <https://www.gradoffice.caltech.edu/financialsupport/ExternalUG> : * List of external fellowships for international students. * Database of fellowships for underrepresented students. * Department of Energy National Nuclear Security Administration Stewardship Science Graduate Fellowship (DOE NNSA SSGF): * Deadline: January 14, 2025. * Resources include application FAQs, insights, and a downloadable recruitment poster. * Learn more about the fellowship’s impact through the Stewardship Science Magazine. * How to Apply<http://www.krellinst.org/ssgf/how-apply>: application insight and access, frequently asked questions, and a downloadable recruitment poster (also available in print). * Stewardship Science<http://www.krellinst.org/ssgf/outreach/stewardship-science-magazine> Magazine<http://www.krellinst.org/ssgf/outreach/stewardship-science-magazine>: a look at the people and research the program affects. (Also available in print.) * * Ford Foundation Fellowship Programs<https://sites.nationalacademies.org/pga/fordfellowships/index.htm>*: Fellowships for pre-doctoral, dissertation, and post-doctoral students pursuing teaching and research careers. * Application Deadline: December. * Results Announced: March. * Funding Institutional*<https://www.elsevier.com/solutions/funding-institutional> * a single-source workflow tool containing data on funders, funding opportunities and awarded grants, drawn from a wide range of governmental and private sources, is made available to the VT community by the Office for Research and Innovation. * GEM Fellowship<https://www.gemfellowship.org/>: Open to underrepresented students pursuing graduate education in applied science and engineering. Applications open in the spring and close in November. * Graduate Fellowships for STEM Diversity: For graduate students in designated STEM fields. Applications are open from August to December. * NSF Graduate Research Fellowship Program<https://nsfgrfp.org/> (GRFP): For graduate students pursuing research-based master’s and doctoral degrees in NSF-supported STEM disciplines. * Application Period: August to October. * Results Announced: April. * Southern Regional Education Board – State Doctoral Scholars Program<https://www.sreb.org/doctoral-scholars-program>: A program for doctoral students. Application deadline is in March. * Spencer Foundation<https://www.spencer.org/why-we-grant>: Offers research grants and dissertation fellowships. ________________________________ Additional Resources and Tools * Funding Institutional*<https://www.elsevier.com/solutions/funding-institutional> A centralized tool for discovering funding opportunities, supported by the VT Office for Research and Innovation. * Grants.gov<https://www.grants.gov/web/grants/>: A hub for finding and applying for federal funding opportunities. * NSF Database of Funding Opportunities: An extensive repository of NSF funding options. database of funding opportunities<https://www.nsf.gov/funding/index.jsp> * UCLA’s Fellowship Database<https://grad.ucla.edu/funding/#/>: A searchable database of external fellowship opportunities. * Liberal Arts and Human Sciences Research Fellowships<https://sites.google.com/vt.edu/fellowships/home>: Compiled by the College of Liberal Arts & Human Sciences. * National Academies of Sciences, Engineering, Medicine Fellowships and Grants<https://www.nationalacademies.org/fellowships-and-grants>. * NIH Programs for Graduate Students. * Social Science, National Institute of - Dissertation Gran<https://www.socialsciencesinstitute.org/2022-dissertation-grant-program>t

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CS Graduate Program Newsletter: January Edition
by Dr. Eli Tilevich 06 Jan '25

06 Jan '25

Dear all, We are excited to share the January edition of the Computer Science Graduate Program Newsletter, a monthly publication of the Graduate Program Office. Best regards, Dr. T. ---------------------------------------------------------------------- Eli Tilevich, Ph.D. Professor and Associate Dept. Head for Graduate Studies Gilbert Place #4204 Dept. of Computer Science Virginia Tech Zoom: https://virginiatech.zoom.us/my/tilevich (540) 231-3475 http://people.cs.vt.edu/~tilevich

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New course: Data Security and Privacy in the Age of AI
by Kantarcioglu, Murat 01 Jan '25

01 Jan '25

Dear All, Happy New Year! I hope you are having a wonderful holiday break. I recently joined Virginia Tech as a full professor and will be offering a new course in the Spring 2025 semester. Title: Data Security and Privacy in the Age of AI (CS 5914) Time and Location: M-W: 4pm-5:15pm@D&DS 240 Description: This course provides essential tools for safeguarding sensitive data in AI applications while ensuring robust privacy protections. Topics covered include: fundamentals of Access Control, encryption-based methods for secure data processing, confidential computing, data anonymization, federated learning, differential privacy, and approaches to understanding and defending against privacy and security threats to AI models including Large Language Models. The course will include a combination of lectures and student-led presentations. I aim to encourage students to undertake novel class projects, which will account for 40% of the overall grade. For more details on the course syllabus, please visit the following course web page: https://www.kantarcioglu.net/courses/dspai25s.html If you are interested, please register! And if you have any questions, feel free to reach out to me at muratk(a)vt.edu Best Regards, Murat ==================================== Murat Kantarcioglu, Ph.D. Professor, and CCI Faculty Fellow Virginia Tech, Department of Computer Science www.kantarcioglu.net ====================================

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Time to Register for 2025 CS PhD Qualifier Exam (Due 1/13 EOD)
by Muhammad Ali Gulzar 27 Dec '24

27 Dec '24

Dear Ph.D. Students, If you are considering taking the CS PhD qualifier exam this academic year (i.e., in Spring 2025), please review the registration details provided on the 2025 Ph.D Qualifier Exam webpage <https://people.cs.vt.edu/~gulzar/qualifier/sp2025/>. Be mindful that your participation in the survey sent earlier does not automatically register you for the exam; you must commit to taking the exam by registering using the following registration link <https://forms.office.com/r/s1mWsq8Aa0>. Use your VT account to access this form. You can edit your registration till the due date, which is 1/13/2025 11:59PM ET. If you consider yourself eligible for a waiver, you must register for the exam and fill in the relevant section on the registration form to express this. Feel free to contact me if you have further questions. I wish you the best. Sincerely, Gulzar — Muhammad Ali Gulzar Assistant Professor Virginia Tech | Department of Computer Science 220 Gilbert Street, Room 4106 Blacksburg, VA 24060 (540) 231-0851 | gulzar(a)cs.vt.edu | https://people.cs.vt.edu/~gulzar

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CS|Source Announcements and Opportunities | Wednesday, December 18, 2024
by Shirkey, Claire 18 Dec '24

18 Dec '24

[cid:image001.png@01DB511F.DAE68CA0] All Computer Science Students: Job Hub Remember to post your resume to the CS JobHub<https://jobhub.cs.vt.edu/> in addition to Handshake! All CS|Source Members have access to your resumes once they are available on our JobHub site! For assistance with tech support, please contact Ben Stein (bbradner(a)vt.edu<mailto:bbradner@vt.edu>). [AI Assistant - Amazon Q - AWS] AWS Amazon Q Team Hiring Summer 2025 Interns! AWS Amazon Q team is hiring Applied Science interns for summer 2025 to develop cutting-edge LLM applications and intelligent coding agents. You'll work alongside leading researchers in machine learning, NLP, and software engineering, advancing every stage of coding agents - from pre-training and fine-tuning to agent deployment and evaluation. This role offers the chance to drive innovation in AI-powered coding tools for intelligent code completion, automated code reviews, and more. If interested, please share the resume on shwegarg(a)amazon.com<mailto:shwegarg@amazon.com> with the subject "2025 summer internship opportunity". [Cornell Tech - WiTNY Initiative Announces National Expansion to Recruit More Women in Tech - Formally Becomes Break Through Tech] Applications Open for 2025-26 AI Program! Break Through Tech<https://www.breakthroughtech.org/programs/sprinternships/> is now accepting applications<https://bit.ly/break-through-tech-ai-application> for the 2025-26 AI Program, which will begin in May 2025! The AI Program<https://www.breakthroughtech.org/programs/the-ai-program/> is a free, virtual, one-year extracurricular experience that equips you with the skills needed to secure a job in the fastest-growing areas of tech: data science, artificial intelligence (AI), and machine learning (ML). Developed by industry and academic leaders, you will master the skills necessary to become a successful machine learning engineer. Complete our ML Foundations curriculum over the summer and tackle industry projects hosted by leading companies during the academic year. Along the way, you will learn practical, industry-relevant skills that will qualify you for entry-level jobs in the field, including building data analysis pipelines and utilizing common ML and AI tools and libraries to train and validate ML models. At the same time, you will receive career coaching, mentorship, and summer internship placement support, all aimed at helping you successfully launch your career in machine learning and AI. All fellows who complete the program will receive a $2,000 award. Apply here: https://bit.ly/break-through-tech-ai-application. The Priority Application Deadline is January 13, and the Final Application Deadline is February 24. [smover | LinkedIn] Full-time and Internship Opportunities Available at Startup smover 1-Minute Video<https://docsend.com/view/w9dd72ffhaxvupvk> Smover is the first AI-powered platform that makes buying and selling real estate seamless from search to sale. Unlike fragmented solutions like Zillow (search) and Qualia (contract to close), smover offers a seamless, customer-centric solution. Our global team, from San Francisco to Estonia, brings over 20 years of experience from the Valley at companies such as Apple, Slack, AirBnb, Yahoo, and Shutterfly. We're proudly backed by StartupBootCamp, Google for Startups, Virginia's ICAP, South Carolina's Research Authority, and NVIDIA's Inception Program. Please see the two attached flyers for more information. [Department of Management- Pamplin College of Business] Two Part-Time Undergraduate Cybersecurity Roles for VT: Need to be Filled ASAP We're hiring two undergraduate students to support Modernizing Talent Management in Virginia, Maryland, and D.C. (MTM VMD), connecting neurodiverse talent with cybersecurity roles. Open Positions: 1. Project Management: Handshake link<https://vt.joinhandshake.com/emp/jobs/9512164> 2. Research Assistant: Handshake link<https://vt.joinhandshake.com/emp/jobs/9512231> Apply by December 20 by emailing your resume and cover letter to MTM-VMD(a)vt.edu<mailto:MTM-VMD@vt.edu>. Cybersecurity expertise is optional; an interest in the topic is required. Spread the word or apply today! Apply for a Water Quality Research Position! Water quality research positions The Carey Lab<https://carey.biol.vt.edu/> in the Department of Biological Sciences at Virginia Tech is recruiting paid undergraduate research assistants for the Spring 2025 semester and throughout Summer 2025 (March-August). We are looking for a spring semester commitment of ~5-10 hours/week beginning in March and a summer commitment of ~30 hours/week from March to August. Students interested in working with the Carey Lab for multiple semesters beyond Summer 2025 are particularly encouraged to apply! All applicants must be enrolled at Virginia Tech with junior standing or earlier. Both positions will start at $15/hour. Applicants may apply to both positions, but should email Katie and Maria separately with their applications (see contact info below). Position 1 will entail water quality sampling of local drinking water reservoirs in Roanoke, VA and their inflow streams, preparing for field sampling, and assisting with chemical analyses of water quality samples in the laboratory. You will work closely with graduate student mentors and will gain experience working as part of an interdisciplinary team of scientists. There will also be opportunities to gain/develop skills in data management, coding (R programming language). Applicants should also be attentive to detail, excited about outdoor work experience, and able to lift 40 pounds. Please see attached flier and position description. <https://docs.google.com/document/d/11o_IUyd82GphP8vkrb8XEVnpuU-KjpeG/edit> Position 2 will be based in Blacksburg during the spring 2025 semester, and in Sunapee, NH from mid June - late July/early August over the summer. All travel and lodging costs are covered as part of the position. The undergraduate researcher will assist with water quality sampling, field sampling preparation, data management, sample analysis, and science communication. They will work closely with a graduate student mentor, lab manager, and community members at a watershed association to gain field and lab experience as part of an interdisciplinary team. For more details, please see attached flier and position description.<https://docs.google.com/document/d/1JHN14nIBZfFbWde3BKBGcc0YTSa1DjdaLyVrcQY…> For Position 1 Questions and Applications: Email Maria Popescu at mariapopescu100(a)vt.edu<mailto:mariapopescu100@vt.edu> with the subject "CAREY UNDERGRAD POSITION" For Position 2 Questions and Applications: Email Katie Hoffman at kkhoffman(a)vt.edu<mailto:kkhoffman@vt.edu> with the subject line "Carey Lab Sunapee summer research technician" For both applications please include: * A current CV or resume * A cover letter describing both your specific interest in the position and your relevant experience * Contact information for 2 references Please look within the attached postings for more details and application instructions for the position. Applications for these positions are due via email by 11:59pm EST December 20, 2024 [A crash course on AWS. Ramp up on AWS in minutes via a... | by Yevgeniy Brikman | Gruntwork] Internship with Amazon Web Services Amazon Web Services (AWS) is offering a 12-week full-time summer internship for students interested in cloud computing and technical support. Key Details: * Role: Cloud Support Associate Intern * Locations: Seattle, WA; Dallas, TX; Herndon, VA * Dates: Start on May 19, 2025 (semester programs) or June 16, 2025 (quarter programs) * Eligibility: * Enrolled in an associate or undergraduate degree program * Graduation date between December 2025 and August 2026 This internship offers hands-on experience with AWS cloud services, technical training, and collaboration with AWS engineers to solve real-world challenges. For more information and to apply, visit: https://www.amazon.jobs/en/jobs/2821960/cloud-support-associate-intern-us?n… [Deutsche Bank publishes initial transition plan - MarketingReport] Deutsche Bank Opportunities Meet Us Virtually or On Your Campus We're still accepting applications for the 2025 TDI Grad Tech Analyst and Summer Intern Tech Analyst positions! We hope to see you at a few additional remaining virtual and in-person recruiting activities this fall. 2025 TDI Grad and Intern Program: The 2025 TDI Grad Program is a full-time one-year rotational program open to undergraduate seniors or 2nd year Master's students with less than 12 months' work experience and will be completing their studies (all final exams, coursework and have no outstanding requirements for graduation) between January 1, 2024 and July 31, 2025. [Apply Here<https://db.recsolu.com/external/requisitions/F0yxL9nQ2hYCyPTeyUR3Dw>] The 2025 TDI Intern Program is a 10-week summer program open to undergraduate juniors or 1st year Master's students with less than 12 months' work experience, graduating between December 1, 2025 and June 30, 2026. [Apply Here<https://db.recsolu.com/external/requisitions/vuuwuFfzzsGmhlnhPxJQeA>] Good To Know Watch this short for a snapshot of what the internship looks like at Deutsche Bank: National Intern Day 2024 (youtube.com)<https://www.youtube.com/shorts/9EVcY_GoSe8> More Opportunities at Deutsche Bank Welcome - Inside Deutsche Bank - Deutsche Bank Careers (db.com)<https://careers.db.com/inside-deutsche-bank/> Cary - Deutsche Bank Careers (db.com)<https://careers.db.com/explore-the-bank/locations/americas/cary> Cary overview video<https://vimeo.com/832369333/6526cd98f9?share=copy> TDI NY & Cary, NC<https://careers.db.com/students-graduates/Search-Programmes/#/graduate/resu…> DB Careers page<https://careers.db.com/professionals/search-roles/#/professional/> Follow us on LinkedIn: Deutsche Bank Technology, Data & Innovation [cid:image007.png@01DB511F.DAE68CA0] Fellowship Opportunities! Our fellowships are unique educational programs that give students insight into our firm and industry. No finance experience necessary! Over three days at our NYC headquarters, fellows participate in interactive seminars led by notable speakers and our staff. They'll also spend time with senior leaders at the firm, discuss career paths in finance with recent hires and long-tenured employees, and develop relationships with students from schools around the country. There's a $1,500 stipend, and we'll cover their travel and accommodations. Students can learn more on our fellowships website<https://www.fellowships.deshaw.com/recruit/jobs/Oncampus/EB2024Dept> or check out this video<https://www.youtube.com/watch?v=Swxn1o_1Hrk> to hear from former fellows. A few key dates: * March programs: Applications are open until Friday, January 3, 2025. Applications for our summer 2025 internships are also open (for 2026 graduates)! Students can get a quick overview of our internships on our website<https://campus.deshaw.com/>, and apply for as many roles as they'd like here<https://www.deshaw.com/recruit/internships/Oncampus/EB2024Dept>.

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Fw: Help circulating a student job call (VR developer position at VT)
by Seyam, Mohammed 16 Dec '24

16 Dec '24

Forwarding as requested.. Mohammed Seyam<https://website.cs.vt.edu/people/faculty/mohammed-seyam.html>, PhD Collegiate Associate Professor Coordinator for Experiential Learning<https://xl.vt.edu/> Department of Computer Science<http://cs.vt.edu/> Virginia Polytechnic Institute and State University (VirginiaTech<http://www.vt.edu/>). Website<https://cs.vt.edu/people/faculty/mohammed-seyam.html>|LinkedIn<https://www.linkedin.com/in/msseyam/>|Facebook<https://www.facebook.com/MSSeyam> ________________________________ From: Elgewely, Eiman <eelgewely(a)vt.edu> Sent: Monday, December 16, 2024 2:30 PM To: Seyam, Mohammed <seyam(a)vt.edu> Subject: Help circulating a student job call Hi Dr. Mohamed, I hope my email finds you well. I wonder if you can help me circulate the attached job call among your network of Computer Science upper-classmen and graduate students, as my lab is hiring now. Thanks Eiman Eiman Elgewely, MFA, Ph.D. Assistant Professor of Interior Design, Director of the Visualization and Virtual Reality Lab, School of Design, AAD. Virginia Tech. eelgewely(a)vt.edu https://vvrlab.tech/

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