A concise approach to small generating sets of lattices of quasiorders and transitive relations

By H. Strietz, 1975, and G. Cz\'edli, 1996, the complete lattice $Equ(A)$ of all equivalences is four-generated, provided the size $|A|$ is an accessible cardinal. Results of I. Chajda and G. Cz\'edli, 1996, G. Tak\'ach, 1996, T. Dolgos, 2015, and J.\ Kulin 2016, show that both the lattice $Quo(A)$ of all quasiorders on $A$ and, for $|A|\leq \aleph_0$, the lattice $Tran(A)$ of all transitive relations on $A$ have small generating sets. Based on complicated earlier constructions, we derive some new results in a concise but not self-contained way.Comment: 8 pages, 3 figure

Sparse Reject Option Classifier Using Successive Linear Programming

In this paper, we propose an approach for learning sparse reject option classifiers using double ramp loss $L_{dr}$. We use DC programming to find the risk minimizer. The algorithm solves a sequence of linear programs to learn the reject option classifier. We show that the loss $L_{dr}$ is Fisher consistent. We also show that the excess risk of loss $L_d$ is upper bounded by the excess risk of $L_{dr}$. We derive the generalization error bounds for the proposed approach. We show the effectiveness of the proposed approach by experimenting it on several real world datasets. The proposed approach not only performs comparable to the state of the art but it also successfully learns sparse classifiers

Review of modern business intelligence and analytics in 2015: How to tame the big data in practice?: Case study - What kind of modern business intelligence and analytics strategy to choose?

The objective of this study was to find out the state of art architecture of modern business intelligence and analytics. Furthermore the status quo of business intelligence and analytics' architecture in an anonymous case company was examined. Based on these findings a future strategy was designed to guide the case company towards a better business intelligence and analytics environment. This objective was selected due to an increasing interest on big data topic. Thus the understanding on how to move on from traditional business intelligence practices to modern ones and what are the available options were seen as the key questions to be solved in order to gain competitive advantage for any company in near future. The study was conducted as a qualitative single-case study. The case study included two parts: an analytics maturity assessment, and an analysis of business intelligence and analytics' architecture. The survey included over 30 questions and was sent to 25 analysts and other individuals who were using a significant time to deal with or read financial reports like for example managers. The architecture analysis was conducted by gathering relevant information on high level. Furthermore a big picture was drawn to illustrate the architecture. The two parts combined were used to construct the actual current maturity level of business intelligence and analytics in the case company. Three theoretical frameworks were used: first framework regarding the architecture, second framework regarding the maturity level and third framework regarding reporting tools. The first higher level framework consisted of the modern data warehouse architecture and Hadoop solution from D'Antoni and Lopez (2014). The second framework included the analytics maturity assessment from the data warehouse institute (2015). Finally the third framework analyzed the advanced analytics tools from Sallam et al. (2015). The findings of this study suggest that modern business intelligence and analytics solution can include both data warehouse and Hadoop components. These two components are not mutually exclusive. Instead Hadoop is actually augmenting data warehouse to another level. This thesis shows how companies can evaluate their current maturity level and design a future strategy by benchmarking their own actions against the state of art solution. To keep up with the fast pace of development, research must be continuous. Therefore in future for example a study regarding a detailed path of implementing Hadoop would be a great addition to this field

Development of Stress Relief Treatments for High Strength Aluminum Alloys Annual Report No. 2, 13 Aug. 1964 - 13 Aug. 1965

Residual stress, strength, and toughness response of high strength aluminum alloys subjected to time-temperature treatment

Clinical Presentation Non-CME: Kaqun Oxygenated Water Therapy to Augment HBOT

A presentation of a non-prescription synergistic therapy for Hyperbaric Chamber protocols which may also enjoy stand-alone application with Lyme disease and other mitochondrial disease processes

Counting and generating in some classes of lattices

Following the introductory Chapter 1, we gave the number of slim rectangular lattices of length n in Chapter 2. Also, we estimated their number asymptotically. In Chapter 3, we aimed to determine a minimum-sized generating set of the lattice of quasiorders. First, we proved that the lattice of quasiorders of any set with accessible cardinality can be generated by 5 elements. Later we extended this result by showing the existence of 4 element generating sets. We also proved that less than 4 elements are not enough. In Chapter 4, we examined the number of congruences an n-element finite lattice can have. We described the lattices with the third, fourth, and fifth largest possible numbers of congruences

Discurso de 62. Modelo para armar, de Julio Cortázar.

Sin resume