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Beyond Hard Constraints: Budget-Conditioned Reachability For Safe Offline Reinforcement Learning

Sequential decision-making using Markov Decision Process underpins many real-world applications. Both model-based and model-free methods have achieved strong results in these settings. However, real-world tasks must balance reward maximization with safety constraints, often conflicting objectives, that can lead to unstable min–max, adversarial optimization. A promising alternative is safety reachability analysis, which precomputes a forward-invariant safe state–action set, ensuring that an agent starting inside this set remains safe indefinitely. Yet, most reachability-based methods address only hard safety constraints, and little work extends reachability to cumulative cost constraints. To address this, first, we define a safety-conditioned reachability set that decouples reward maximization from cumulative safety cost constraints. Second, we show how this set enforces safety constraints without unstable min–max or Lagrangian optimization, yielding a novel offline safe RL algorithm that learns a safe policy… Subtitle: Pre-Conference Talk by Brahmanage Janaka Chathuranga THILAKARATHNA. Contact: scisseminar@smu.edu.sg. Speaker Details: , Brahmanage Janaka Chathuranga THILAKARATHNA PhD Candidate School of Computing and Information Systems Singapore Management University, Janaka Brahmanage is a fourth-year PhD candidate in Computer Science, conducting research under the guidance of Associate Prof. Akshat Kumar at the SMU School of Computing and Information Systems. His research focuses on safe reinforcement learning and multi-agent systems. RSVP: . Reserve a seat: https://forms.cloud.microsoft/Pages/ResponsePage.aspx?id=ynmKyZpakUeiQ_Bq_WdGTejbEKPlArBJhZomj91naG9URjJIV0VSNkdMSkQ3MjAxOEpMVVRNVzhFMC4u. Type: Seminars & Workshops. Subject: Information Technology & Systems. Audience: Public. Tuesday, June 16, 2026, 11:30 AM – 11:50 AM. Meeting room 5.1, Level 5. School of Computing and Information Systems 1, Singapore Management University, 80 Stamford Road, Singapore 178902. For more info visit computing.smu.edu.sg.

Singapore HCI 2026 & HRI Workshop 2026

We cordially invite you to a one-day event—the Singapore HCI Meetup 2026 and HRI Workshop 2026—where HCI researchers across the island share ideas, celebrate achievements, and, most importantly, reconnect with old friends and meet new ones. This year's meetup will be hosted at the SMU campus on 18 June. RSVP: . Reserve a seat: https://forms.office.com/pages/responsepage.aspx?id=ynmKyZpakUeiQ_Bq_WdGTc1sA3niBzxOi60foZ8X931URFBFMUlFOTFaMzAxRlFHVEFJSEZPUFBNSy4u&origin=lprLink&route=shorturl. Type: Seminars & Workshops. Subject: Information Technology & Systems. Audience: Public. Academic Community. Current Student. Thursday, June 18, 2026, 9:00 AM – 5:00 PM. School of Computing and Information Systems 2, Level 3, Classroom 3-1, Singapore Management University, 90 Stamford Road, 178903. For more info visit sghcimeetup26.notion.site.

SMU Postgraduate Fast Track

Public Events Hourly Sessions: Friday, 19 June 2026  10:00am - 8:00pm Saturday, 20 June 2026  10:00am - 2:30pm *Refer to the registration link for specific slots of each programme. RSVP: https://postgraduate2.smu.edu.sg/acton/media/24273/FT2. Event Details: We are conducting Fast-Track Admission for the abovementioned SMU Postgraduate Programmes! You will be able to expedite your application and be guided through the process by the Admissions Team. Eligible candidates* would be shortlisted for an interview with the admission committee. Application fee will be waived for all fast-track attendees. If you're ready to apply, register today! You ​are ​welcome ​to ​bring ​a ​friend ​with ​you. ​Simply ​forward ​them ​this ​link: https://postgraduate2.smu.edu.s… Type: Information Sessions. Subject: Economics. Finance & Financial Markets. Analytics for Business, Consumer & Social Insights. Operations Management. Social Sciences & Humanities. Accounting. Audience: Prospective Student. Public. Friday, June 19, 2026, 10:00 AM – Saturday, June 20, 2026, 2:30 PM. Hybrid Zoom details will be sent to you upon review of your profile.

Designing for “Just Enough”: How Elegance Drives Adoption and Innovation

In an environment saturated with information, products, and interfaces, users increasingly expect designs that are both simple and effective. Elegant Design: A Designer’s Guide to Harnessing Aesthetics examines how the tension between simplicity and complexity can be addressed by conceptualizing elegance as a form of ideal complexity: sufficiently rich to convey meaning, yet clear enough for immediate comprehension. Drawing on research at the intersection of cognitive science, information theory, and art, Luca Landoli demonstrates that aesthetic pleasure is not merely an optional enhancement, but a critical factor guiding decision-making in design, innovation, and product development. Utilizing over 100 visual examples and case studies, the book presents eight actionable strategies: four for enriching designs that lack engagement, and four for simplifying solutions that have become overly complex. This presentation is particularly relevant for scholars and students in information systems, human-computer inter… Subtitle: Research Seminar by Dr Luca Iandoli. Contact: scisseminars@smu.edu.sg. Speaker Details: , Luca Iandoli Distinguished Chair and Dean of the Lesley H. and William L. Collins College of Professional Studies St. John’s University, Luca Iandoli is Dean of the Collins College of Professional Studies at St. John’s University. A scholar of collective intelligence, interaction design, and product aesthetics, his work explores how people and organizations make sense of complexity through design. A former Fulbright Visiting Scholar at the MIT Center for Collective Intelligence, he has also served as… RSVP: . Reserve a seat: https://forms.office.com/pages/responsepage.aspx?id=ynmKyZpakUeiQ_Bq_WdGTbOXO7ktpRtBsn62WuekYtpUN0wxN0pDNjcyMEFTSDZKVFY1VThMWVNWVS4u&route=shorturl. Type: Seminars & Workshops. Subject: Information Technology & Systems. Audience: Public. Current Student. Academic Community. Friday, June 19, 2026, 10:30 AM – 11:30 AM. Seminar Room 2-5, Level 2. SMU SCIS 2, Singapore 178903. For more info visit computing.smu.edu.sg.

SMU Doctor of Engineering (EngD) Virtual Information Session

Infosessions . RSVP: . Reserve a seat: https://scispg.smu.edu.sg/acton/media/44865/engdis0726. Type: Information Sessions. Webinar & Online Learning. Subject: Business. Leadership. Operations Management. Organisational Behaviour. Strategic Management. Information Technology & Systems. Analytics for Business, Consumer & Social Insights. Audience: Professionals. Prospective Student. Thursday, July 2, 2026, 7:00 PM – 8:00 PM. Virtual via Zoom Details will be provided via email upon registration.

The Voice of the Flow: A Graph-based Approach for Step-Wise Explanations of Constraint Satisfaction Problems

Stepwise explanations are an important tool for interpreting constraint programs. Existing methods rely heavily on repeated minimal unsatisfiable subsets (MUS) extraction or intensive SAT-based propagation, which are computationally prohibitive for large-scale problems with complex constraints. We propose a novel framework leveraging Multi-Valued Decision Diagrams (MDDs) to overcome these bottlenecks. By decomposing CSPs into smaller, graph-based subproblems compactly represented as MDDs, we enable highly efficient constraint propagation through network-flow reformulation. To further enhance efficiency, we propose a Divide-and-Conquer approach to improve the search for minimal explanation steps. Furthermore, we utilize the MDD’s network-flow structure to generate nested explanations that break down complex derivation steps into granular, arc-level details, revealing specifically how variable-value assignments become infeasible. In this way, our approach equips the explainer agent with a voice that provides mo… Subtitle: Pre-Conference Talk by NGUYEN Minh Anh. Contact: scisseminar@smu.edu.sg. Speaker Details: , NGUYEN Minh Anh PhD Candidate School of Computing and Information Systems Singapore Management University, NGUYEN Minh Anh is a third-year PhD candidate in Computer Science at Singapore Management University, supervised by Prof. LAU Hoong Chuin. His research focuses on explainable optimization, where he develops methods such as step-wise and counterfactual explanations to provide transparency and trust in complex combinatorial optimization problems. His work explores the intersection of XAI and… RSVP: . Reserve a seat: https://forms.cloud.microsoft/Pages/ResponsePage.aspx?id=ynmKyZpakUeiQ_Bq_WdGTejbEKPlArBJhZomj91naG9UNkdQQjJCWFRVN1FPM0FTOVZXMVFHUVFBNC4u. Type: Seminars & Workshops. Subject: Information Technology & Systems. Audience: Public. Friday, July 3, 2026, 11:30 AM – 11:50 AM. Meeting room 4.4, Level 4. School of Computing and Information Systems 1, Singapore Management University, 80 Stamford Road, Singapore 178902. For more info visit computing.smu.edu.sg.