1,838 research outputs found
Mobile Agent based Market Basket Analysis on Cloud
This paper describes the design and development of a location-based mobile
shopping application for bakery product shops. Whole application is deployed on
cloud. The three-tier architecture consists of, front-end, middle-ware and
back-end. The front-end level is a location-based mobile shopping application
for android mobile devices, for purchasing bakery products of nearby places.
Front-end level also displays association among the purchased products. The
middle-ware level provides a web service to generate JSON (JavaScript Object
Notation) output from the relational database. It exchanges information and
data between mobile application and servers in cloud. The back-end level
provides the Apache Tomcat Web server and MySQL database. The application also
uses the Google Cloud Messaging for generating and sending notification of
orders to shopkeeper.Comment: 6 pages, 7 figure
Ferroelectric Phase Transitions from First Principles
An effective Hamiltonian for the ferroelectric transition in is
constructed from first-principles density-functional-theory total-energy and
linear-response calculations through the use of a localized, symmetrized basis
set of ``lattice Wannier functions.'' Preliminary results of Monte Carlo
simulations for this system show a first-order cubic-tetragonal transition at
660 K. The involvement of the Pb atom in the lattice instability and the
coupling of local distortions to strain are found to be particularly important
in producing the behavior characteristic of the transition. A
tentative explanation for the presence of local distortions experimentally
observed above is suggested. Further applications of this method to a
variety of systems and structures are proposed for first-principles study of
finite-temperature structural properties in individual materials.Comment: 14 pages, harvmac, 4 uuencoded figure
Chemical control of polar behavior in bicomponent short-period superlattices
Using first-principles density functional calculations, we study the
interplay of ferroelectricity and polar discontinuities in a range of 1-1 oxide
superlattices, built out of ferroelectric and paraelectric components. Studies
have been carried out for a varied choice of chemical composition of the
components. We find that, when polar interfaces are present, the polar
discontinuities induce off- centric movements in the ferroelectric layers, even
though the ferroelectric is only one unit cell thick. The distortions yield
non-switchable polarizations, with magnitudes comparable to those of the
corresponding bulk ferroelectrics. In contrast, in superlattices with no polar
discontinuity at the interfaces, the off-centric movements in the ferroelectric
layer are usually suppressed. The details of the behavior and functional
properties are, however, found to be sensitive to epitaxial strain, rotational
instabilities and second-order Jahn-Teller activity, and are therefore strongly
in uenced by the chemical composition of the paraelectric layer.Comment: 7 pages, 2 figure
Prediction of Stocks and Stock Price using Artificial Intelligence : A Bibliometric Study using Scopus Database
Prediction of stocks and the prices of the stock is one of the most crucial points of discussion amongst the researchers and analysts in the financial domain to date. Every stakeholder and most importantly the investor desires to earn higher profit for his investment in the market and try to use several different strategies to invest their money. There are numerous methods to predict and analyse the movement of the stock prices. They are broadly divided into – statistical and artificial intelligence-based methods. Artificial intelligence is used to predict the futuristic prices of stocks and use wide range of algorithms like – SVMs, CNNs, LSTMs, RNNs , etc. This bibliometric study focusses on the study based primarily on the Scopus database. We have considered important keywords, authors, citations along with the correlations between the co-appearing authors, source titles and keywords with the use of network diagrams for visualisation. On the basis of this paper, we conclude that there is ample opportunity for research in the domain of financial market
- …