Results 41 to 50 of about 2,595,187 (128)

Estimating Hierarchical Demand in Retail Operations

open access: yesJournal of Operations Management, Volume 72, Issue 6, Page 831-850, September 2026.
ABSTRACT A hierarchical structure over product attributes is a central input to many product assortment and inventory optimization models, yet no existing method can recover such structures from the aggregate sales data that retailers routinely collect.
Blair Flicker   +3 more
wiley   +1 more source

Compile‐Once Block Encodings for Masked Similarity‐Transformed Effective Hamiltonians

open access: yesAdvanced Quantum Technologies, Volume 9, Issue 9, September 2026.
Composer transforms structured electronic‐structure operators into a reusable quantum‐circuit fabric. Once compiled, the same block‐encoding architecture is re‐dialed through coefficients, rotation angles, and masks to generate similarity‐transformed effective Hamiltonians across related problem instances, avoiding repeated structural recompilation ...
Bo Peng, Yuan Liu, Karol Kowalski
wiley   +1 more source

Exploiting Group Symmetry in Semidefinite Programming Relaxations of the Quadratic Assignment Problem [PDF]

open access: yes
We consider semidefinite programming relaxations of the quadratic assignment problem, and show how to exploit group symmetry in the problem data. Thus we are able to compute the best known lower bounds for several instances of quadratic assignment ...
Klerk, E. de, Sotirov, R.
core  

A Multilevel Algorithm for Large Unconstrained Binary Quadratic Optimization [PDF]

open access: yes, 2012
The unconstrained binary quadratic programming (UBQP) problem is a general NP-hard problem with various applications. In this paper, we present a multilevel algorithm designed to approximate large UBQP instances.
Wang, Yang   +11 more
core   +1 more source

Drone Delivery Packing Problem on a Neutral‐Atom Quantum Computer

open access: yesAdvanced Quantum Technologies, Volume 9, Issue 9, September 2026.
This research models the Drone Delivery Packing Problem as a battery‐constrained graph partitioning. We use Pasqal's Fresnel QPU to sample time‐feasible single‐drone schedules, with tunable delivery targets via hardware parameters, and enforce battery limits by greedy post‐processing.
Sara Tarquini   +4 more
wiley   +1 more source

Bounds for Binary Integer Programming via Unconstrained Quadratic Pseudo-Boolean Optimization

open access: yes
This research proposes a method for finding bounds in binary integer programming (BIP) and quadratic binary integer programming (QBIP). Our approach utilizes a max-flow technique within the framework of quadratic pseudo-Boolean optimization.
Chulin Likasiri, Sirilak Phonin
core   +1 more source

Practical Implementation of Unconstrained Optimization Methods Tested on Quadratic Functions [PDF]

open access: yes, 2017
In this work we give a detailed look to the Practical implementation of unconstrained optimization tested on quadratic functions. Section (1) speak about the theory of optimization problems, introduce definitions and theorems of linear programming ...
El Siddieg, Awatif M. A.
core   +1 more source

Interval Data Assimilation: A Data Assimilation Scheme Where All Observations Are Intervals

open access: yesJournal of Advances in Modeling Earth Systems, Volume 18, Issue 9, September 2026.
Abstract With the proliferation of non‐conventional observations from low‐cost sensors, citizen science networks, and binary detection systems, data assimilation increasingly confronts observations that take the form of inequalities or intervals rather than precise point values.
Le Duc, Naoki Hiura, Yohei Sawada
wiley   +1 more source

SMAXI: a machine‐learning‐powered open‐source software for multidimensional full‐field X‐ray image analysis

open access: yesJournal of Synchrotron Radiation, Volume 33, Issue 5, Page 1605-1617, September 2026.
SMAXI is a fully open‐source, GPU‐accelerated software platform that integrates state‐of‐the‐art machine learning and large language model techniques into a unified workflow for X‐ray image analysis. SMAXI simplifies high‐throughput data processing workflows and overcomes manual image analysis bottlenecks.Full‐field X‐ray imaging techniques using ...
Dukyong Kim, Tao Sun
wiley   +1 more source

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