.- On the Problem of Best Arm Retention. .- Clustering with a Knapsack Constraint: Parameterized Approximation Algorithms for the Knapsack Median Problem. .- On the Existence of EFX (and Pareto-Optimal) Allocations for Binary Chores. .- How to Play Old Maid with Virtual Players. .- Algorithms for Optimally Shifting Intervals under Intersection Graph Models. .- On the Fine-grained Complexity of Approximating Max k-Coverage. .- Nested and Interleaved Ticketing for Multiple Travelers. .- Longest (k]-tuple Common Substrings. .- Scheduling two types of jobs with minimum makespan. .- Blockchain Technology for Digital Asset Ownership. .- On the Optimal Mixing Problem of Approximate Nash Equilibria in Bimatrix Games. .- Finding Fair and Efficient Allocations Under Budget Constraints. .- Computations and Complexities of Tarski’s Fixed Points and Supermodular Games. .- Parity-Constrained k-Supplier Problem. .- Approximating Principal-Agent Problem under Bayesian. .- Robust Facility Leasing Problem with Penalties. .- Randomized Strategyproof Mechanisms for Multi-stage Facility Location Problem with Capacity Constraints. .- From Evolutionary Game Dynamics to Non-negative Matrix Factorization: Acceleration with Hessian Geometry. .- A case for Copeland: from theory to practice. .- Deterministic and Universal Truthful Mechanism for Fair Matching. .- Equilibrium Strategies of Carbon Emission Reduction in Agricultural Product Supply Chain under Carbon Sink Trading. .- Active Learning Supported Iterative Combinatorial Auctions. .- Locating Two Facilities on a Square with a Minimum Distance Requirement.