Abstract: In the literature of Economics, Engineering and Operations Research, the estimation of production frontiers is a current hot topic. Many parametric and nonparametric methodologies have been ...

Abstract: Backtracking search algorithm (BSA) has been applied to solve the various optimization problems in recent years. However, BSA is difficult to solve non-separable problems due to its single ...

regress is a backtracking regular expression engine implemented in Rust, which targets JavaScript regular expression syntax. See the crate documentation for more. It's fast, Unicode-aware, has few ...

Sudoku is one of the most popular puzzle games of all time. The objective of Sudoku is to fill a 9-by-9 grid with digits from 1 to 9 such that each column, row, and box (or called "subgrid", "region", ...

Days after the brutal execution of 37-year-old Alex Pretti in Minneapolis, we still don’t know the identities of the masked ICE agents who shot him dead. They fled the scene and are nowhere to be ...

Davenport is proposing to pay for the operations of its new riverfront park with the general fund, which pays for other parks operations, instead of the city's 1988 voter-approved local option sales ...

Metroidvanias continue to evolve, experimenting with the formula to deliver fresh experiences. While the core pillars of discovery and backtracking across a large, interconnected map remain intact, ...

Kerolin scores an exquisite hat-trick as Manchester City ensure they have one hand on the WSL trophy after a huge victory over rivals Chelsea.

Reaction as Southampton fight back from a 3-0 deficit to beat Leicester 4-3 and Norwich cruise to a comfortable 3-0 victory at Oxford.

Senegal stunned Morocco in Sunday's Africa Cup of Nations final as Pape Gueye's goal gave them a 1-0 extra-time win over the hosts at the end of a match marred by disgraceful scenes following a ...

Ask the publishers to restore access to 500,000+ books. An icon used to represent a menu that can be toggled by interacting with this icon. A line drawing of the Internet Archive headquarters building ...

The Democratic Alliance (DA) has maintained that the Gauteng Department of Education (GDE) has reduced all quintile five ...