BowTie - A deep learning feedforward neural network for sentiment analysis

How to model and encode the semantics of human-written text and select the type of neural network to process it are not settled issues in sentiment analysis. Accuracy and transferability are critical issues in machine learning in general. These properties are closely related to the loss estimates for the trained model. I present a computationally-efficient and accurate feedforward neural network for sentiment prediction capable of maintaining low losses. When coupled with an effective semantics model of the text, it provides highly accurate models with low losses. Experimental results on representative benchmark datasets and comparisons to other methods show the advantages of the new approach.Comment: 12 pages, 7 figures, 4 table

ON 15-TH SMARANDACHE'S PROBLEM

Studying the 15-th Smarandache's problem

Structure on the set of closure operations of a commutative ring

We investigate the algebraic structure on the set of closure operations of a ring. We show the set of closure operations is not a monoid under composition for a discrete valuation ring. Even the set of semiprime operations over a DVR is not a monoid; however, it is the union of two monoids, one being the left but not right act of the other. We also determine all semiprime operations over the ring $K[[t^2, t^3]]$

Evaluating the Financial Position and Performance of a typical Dairy Farm in Bulgaria

The aim of this paper is to explore the potentials of typical middle sized dairy farms (with 22 cows) to absorb the quotas and market shares released by the small scale farms after the EU accession in 2007. The hypothesis is that quota introduction combined with high quality standards for raw milk will significantly reduce the share of small scale farms in milk production for processing. If different opportunities for alternative income-generating activities become available for small farms (as a consequence of the EU accession), their willingness to give up dairy farming will increase. Middle sized farms will benefit from an improved access to resources and also from more favourable conditions for economic growth. In this paper the analysis was made on the International Farm Comparison Network (IFCN) concept of typical farm. The Trade Implication and Policy Implication CALculator (TIPICAL) modelling program provides financial statements and most of the calculations for business’ profitability, solvency, liquidity, cost analysis and comparisons. The results of the financial analysis show the poor credit power of farms, when calculated only on farm assets market price. In the same time, it reveals the potential of growing and carries out an economy of scale when both financial and farm management are improved.dairy farm structure; financial position; measures of solvency; growth potential

Conformal quaternionic contact curvature and the local sphere theorem

A tensor invariant is defined on a quaternionic contact manifold in terms of the curvature and torsion of the Biquard connection involving derivatives up to third order of the contact form. This tensor, called quaternionic contact conformal curvature, is similar to the Weyl conformal curvature in Riemannian geometry and to the Chern-Moser tensor in CR geometry. It is shown that a quaternionic contact manifold is locally quaternionic contact conformal to the standard flat quaternionic contact structure on the quaternionic Heisenberg group, or equivalently, to the standard 3-sasakian structure on the sphere iff the quaternionic contact conformal curvature vanishes.Comment: LaTeX, 33 pages, exposition clarified, final version, to appear in J.Math.Pures App