use of the double ring infiltrometer to measure soil water infiltration in center pivot irrigation systems is not an accurate approach; because the real conditions of infiltration under center pivot sprinklers is different from what happens in the double ring. in this study, the infiltration parameters were determined under real conditions of a center pivot system. for this purpose, a single ri...

The rounding-error analysis of Gaussian elimination shows that the method is stable only when the elements of the matrix do not grow excessively in the course of the reduction. Usually such growth is prevented by interchanging rows and columns of the matrix so that the pivot element is acceptably large. In this paper the alternative of simply altering the pivot element is examined. The alterati...

The purpose of this paper is to introduce a new pivot rule of the simplex algorithm. The simplex algorithm first presented by George B. Dantzig, is a widely used method for solving a linear programming problem (LP). One of the important steps of the simplex algorithm is applying an appropriate pivot rule to select the basis-entering variable corresponding to the maximum reduced cost. Unfortunat...

We investigate pivot-based translation between related languages in a low resource, phrase-based SMT setting. We show that a subword-level pivot-based SMT model using a related pivot language is substantially better than word and morphemelevel pivot models. It is also highly competitive with the best direct translation model, which is encouraging as no direct source-target training corpus is us...

We investigate pivot-based translation between related languages in a low resource, phrase-based SMT setting. We show that a subword-level pivot-based SMT model using a related pivot language is substantially better than word and morphemelevel pivot models. It is also highly competitive with the best direct translation model, which is encouraging as no direct source-target training corpus is us...

Pivot Based SMT solves the problem of scarcity of source-target parallel corpus by introducing a third resource rich ‘pivot’ language. Triangulation method in Pivot Based SMT is a method that uses the pivot language to induce new phrase pairs into the phrase table, this process is known as ‘Phrase Table Triangulation’. Phrase Table Triangulation has been extensively studied by many researchers....

Pivot translation is a useful method for translating between languages with little or no parallel data by utilizing parallel data in an intermediate language such as English. A popular approach for pivot translation used in phrase-based or tree-based translation models combines source-pivot and pivot-target translation models into a source-target model, as known as triangulation. However, this ...

In this paper we generalize the so called rst in last out pivot rule and the most often selected variable pivot rule for the simplex method as proposed in Zhang to the criss cross pivot setting where neither the primal nor the dual feasibility is preserved The nite ness of the new criss cross pivot variants is proven