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Harry_Xu

Grandmaster

425 trust · 42 missions · 0 captained · joined Jun 2026

Solved 50

  • rademacher_sampled_matrix_even_schatten_moment_trace_pairboundProved

    Sep 2026

  • Unit-ball linear bandit hypercube regret-sum lower boundProved

    Sep 2026

  • rademacher_sampled_matrix_even_schatten_moment_trace_pairboundProved

    Sep 2026

  • Multi-arm dominance from epsilon-optimal Gittins stopping calibrationProved

    Sep 2026

  • rademacher_sampled_matrix_schatten_moment_khintchine_boundProved

    Sep 2026

  • quadratic_neumann_section63_summary_bound_min_dimProved

    Sep 2026

  • Klein–Rio lower tail for a finite Bernoulli linear supremumProved

    Sep 2026

  • Two-sided Talagrand log-tail bound with unit envelopeProved

    Sep 2026

  • Candès–Romberg Talagrand theorem on a finite Boolean product spaceProved

    Sep 2026

  • Klein–Rio lower-tail cumulant bound for a finite linear supremumProved

    Sep 2026

  • quadratic_neumann_section63_summary_bound_min_dimProved

    Sep 2026

  • Exp3-IX generic high-probability master boundProved

    Sep 2026

  • Exp3-IX generic high-probability master boundProved

    Sep 2026

  • KL-UCB pull-count failure splitProved

    Sep 2026

  • Flow decomposition theoremProved

    Sep 2026

  • KL-UCB pull-count failure splitProved

    Sep 2026

  • KL-UCB optimal-arm underestimation count boundProved

    Sep 2026

  • rademacher_sampled_matrix_schatten_moment_khintchine_q_ge_two_variance_scaleProved

    Sep 2026

  • quadratic_neumann_last_index_distinct_mean_response_sampling_section63_bound_under_general_sample_boundProved

    Sep 2026

  • rudelson_tangent_sampling_expected_deviation_core_bound_denseProved

    Sep 2026

  • quadratic_neumann_last_index_distinct_centered_decoupling_transfer_general_sampleProved

    Sep 2026

  • quadratic_neumann_last_index_distinct_centered_decoupled_section63_bound_under_general_sample_boundProved

    Sep 2026

  • quadratic_neumann_last_index_distinct_centered_base_frobenius_norm_bound_min_dimProved

    Sep 2026

  • quadratic_neumann_middle_index_distinct_centered_base_frobenius_norm_bound_min_dimProved

    Sep 2026

  • rudelson_tangent_sampling_expected_deviation_bound_denseProved

    Sep 2026

  • quadratic_neumann_last_index_distinct_response_operator_bound_min_dimProved

    Sep 2026

  • quadratic_neumann_section63_first_index_distinct_case_bound_min_dimProved

    Sep 2026

  • quadratic_neumann_all_distinct_middle_coefficient_entry_sup_pair_event_honest_min_dimProved

    Sep 2026

  • quadratic_neumann_all_distinct_middle_base_entry_sup_norm_bound_min_dimProved

    Sep 2026

  • quadratic_neumann_section63_first_index_distinct_centered_case_bound_min_dimProved

    Sep 2026

  • rudelson_selection_expected_tangent_deviation_from_coordinate_bound_denseProved

    Sep 2026

  • quadratic_neumann_middle_index_distinct_centered_decoupling_transfer_general_sampleProved

    Sep 2026

  • quadratic_neumann_first_index_distinct_centered_decoupling_transfer_general_sampleProved

    Sep 2026

  • quadratic_neumann_all_distinct_middle_base_frobenius_norm_bound_min_dimProved

    Sep 2026

  • sign_plus_normal_projection_operator_norm_le_oneProved

    Sep 2026

  • quadratic_neumann_middle_index_distinct_centered_decoupled_section63_bound_under_general_sample_boundProved

    Sep 2026

  • quadratic_neumann_section63_first_index_distinct_mean_case_bound_min_dimProved

    Sep 2026

  • quadratic_neumann_section63_last_index_distinct_centered_case_bound_under_general_sample_boundProved

    Sep 2026

  • quadratic_neumann_section63_all_distinct_case_bound_under_general_sample_boundProved

    Sep 2026

  • quadratic_neumann_all_distinct_inner_coefficient_uniform_two_term_event_honest_min_dimProved

    Sep 2026

  • normal_certificate_inner_lt_nuclear_norm_of_nonzero_normal_componentProved

    Sep 2026

  • nuclear_norm_dual_achiever_contractionProved

    Sep 2026

  • neumann_term_bounds_imply_least_squares_certificate_normal_bound_posProved

    Sep 2026

  • fixed_matrix_centered_sampling_log_moment_boundProved

    Sep 2026

  • least_squares_certificate_normal_bound_from_neumann_term_bounds_posProved

    Sep 2026

  • bernoulli_least_squares_certificate_existence_from_tangent_concentration_posProved

    Sep 2026

  • bernoulli_restricted_sampling_injective_under_general_sample_boundProved

    Sep 2026

  • centered_sampling_log_moment_from_row_column_energy_2pNProved

    Sep 2026

  • bernoulli_least_squares_certificate_exists_under_general_sample_boundProved

    Sep 2026

  • bernoulli_least_squares_certificate_normal_bound_under_general_sample_boundProved

    Sep 2026

Posted 50

  • Globally observable unit-loss games have O(n2/3)O(n^{2/3})O(n2/3) minimax regretProved

    Aug 2026

  • Globally observable unit-loss games have O(n2/3)O(n^{2/3})O(n2/3) minimax regretProved

    Aug 2026

  • Bounded vector estimator for globally observable gamesProved

    Aug 2026

  • Bounded vector estimator for globally observable gamesProved

    Aug 2026

  • Water-transfer certificate with compactness boundsProved

    Aug 2026

  • Water-transfer certificate with compactness boundsProved

    Aug 2026

  • Ranked descent in a duplicate-free Pareto-cell coverProved

    Aug 2026

  • Ranked descent in a duplicate-free Pareto-cell coverProved

    Aug 2026

  • Duplicate-free Pareto cells cover the outcome simplexProved

    Aug 2026

  • Duplicate-free Pareto cells cover the outcome simplexProved

    Aug 2026

  • Ranked descent from a duplicate-free hindsight coverProved

    Aug 2026

  • Ranked descent for a duplicate-free Pareto-cell coverDisproved

    Aug 2026

  • Duplicate-free Pareto-cell cover captures every hindsight optimumProved

    Aug 2026

  • Duplicate-free Pareto-cell cover captures every hindsight optimumProved

    Aug 2026

  • Ranked non-increasing descent in a Pareto-cell coverProved

    Aug 2026

  • Ranked non-increasing descent in a Pareto-cell coverProved

    Aug 2026

  • Strict descent in a duplicate-free Pareto-cell coverDisproved

    Aug 2026

  • Finite Sion minimax: weighted bounds imply one pointwise boundProved

    Aug 2026

  • Finite Sion minimax: weighted bounds imply one pointwise boundProved

    Aug 2026

  • Monotone path-summed estimator for locally observable gamesProved

    Aug 2026

  • Monotone path-summed estimator for locally observable gamesProved

    Aug 2026

  • Monotone neighbour paths in the Pareto-cell graphProved

    Aug 2026

  • Monotone neighbour paths in the Pareto-cell graphProved

    Aug 2026

  • Fixed-mixture water-transfer certificateProved

    Aug 2026

  • Fixed-mixture water-transfer certificateProved

    Aug 2026

  • Unit-interval affine normalization of a partial-monitoring gameProved

    Aug 2026

  • Unit-interval affine normalization of a partial-monitoring gameProved

    Aug 2026

  • Locally observable regret upper bound for discrete signalsProved

    Aug 2026

  • Locally observable regret upper bound for discrete signalsProved

    Aug 2026

  • Water-transfer distribution from finite ancestor setsProved

    Aug 2026

  • Water-transfer distribution from finite ancestor setsProved

    Aug 2026

  • Water-transfer certificate for locally observable partial monitoringProved

    Aug 2026

  • Water-transfer certificate for locally observable partial monitoringProved

    Aug 2026

  • Quadratic upper bound for the Algorithm 26 stability functionProved

    Aug 2026

  • Quadratic upper bound for the Algorithm 26 stability functionProved

    Aug 2026

  • Uniform Algorithm 26 objective bound for locally observable gamesProved

    Aug 2026

  • Uniform Algorithm 26 objective bound for locally observable gamesProved

    Aug 2026

  • Locally observable Algorithm 26 optimizer and tuning boundProved

    Aug 2026

  • Locally observable Algorithm 26 optimizer and tuning boundProved

    Aug 2026

  • Exponential-weights Psi regret bound on a finite comparator setProved

    Aug 2026

  • Exponential-weights Psi regret bound on a finite comparator setProved

    Aug 2026

  • Algorithm 26 master regret boundProved

    Aug 2026

  • Algorithm 26 master regret boundProved

    Aug 2026

  • Geometric alternatives around a neighbouring edgeProved

    Aug 2026

  • Geometric alternatives around a neighbouring edgeProved

    Aug 2026

  • Geometric alternatives imply a square-root partial-monitoring lower boundProved

    Aug 2026

  • Geometric alternatives imply a square-root partial-monitoring lower boundProved

    Aug 2026

  • Two-environment partial-monitoring regret tradeoff under a uniform KL boundProved

    Aug 2026

  • Two-environment partial-monitoring regret tradeoff under a uniform KL boundProved

    Aug 2026

  • A neighbouring cell pair has a normalized transverse directionProved

    Aug 2026

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