On Equivalence of Known Families of APN Functions in Small Dimensions

In this extended abstract, we computationally check and list the CCZ-inequivalent APN functions from infinite families on $\mathbb{F}_2^n$ for n from 6 to 11. These functions are selected with simplest coefficients from CCZ-inequivalent classes. This work can simplify checking CCZ-equivalence between any APN function and infinite APN families.Comment: This paper is already in "PROCEEDING OF THE 20TH CONFERENCE OF FRUCT ASSOCIATION

"I now see CPD as an integral part of my life": Authorship in continuing professional development

This is a conference paper from the OLKC (Organizational Learning Knowledge and Capabilities Conference) held in Milan, Italy on 10 & 11 April 2015. The initial extended abstract was peer-reviewed and responses to comments from the peer-review process were incorporated into the conference proceeding paper. The conference proceeding paper was not peer-reviewed. http://www.olkc2015.com/The Actuarial Society of South Africa (‘Actuarial Society’) is piloting amended continuing professional development (‘CPD’) requirements. Cycles of work-based personal development are expected to support the delivery of a quality service better than the existing requirement to attend a minimum number of relevant events. Feedback from volunteers on the pilot project indicated that the proposals were effective in this regard. However, it was also observed that the reflective process embedded in the development cycle resulted in professionals authoring on-going positive revisions to their professional identity. Further, that strengthened professional identity might be leading to a ‘virtuous circle’ whereby the professional is in turn motivated to continue engaging in effective CPD. This paper explores this observation and the extent to which professional identity may be inscribed through a CPD programme which facilitates authentic professional development.Actuarial Association of South AfricaWeb of Scienc

A cooperative planning algorithm to improve performance in Web domains

Proceeding of: IEEE International Conference on Systems, Man and Cybernetics (SMC-2002), 6-9 Oct. 2002, Hammamet, TunezIn this paper, we present MAPWEB, a multiagent framework that integrates planning agents and Web information retrieval agents. The goal of this framework is to deal with problems that require planning with information to be gathered from the Web. Because of flexibility and efficiency reasons, MAPWEB decouples planning from information gathering by splitting a planning problem into two parts: solving an abstract problem and validating and completing abstract solutions by means of information gathering. We focus on the planning process in order to improve its efficiency. There are two ways of improving the efficiency of the MAPWEB planning algorithm: by accelerating the planning process itself and by storing previously solved planning problems. The first has been achieved by designing a cooperative planning algorithm that allows a set of planning agents to share plans and cooperate while planning to increase efficiency. The second is currently being designed and developed to allow planning agents to reuse the acquired knowledge. Finally, this paper presents experimental evaluation of the cooperative planning process when it is used by the planning agents.Publicad

An Approach to User Interface Design of an Accessible User Agent

Proceeding of: Conference on Software Development for Enhancing Accessibility and Fighting Info-exclusion (DSAI 2012), took place 19-22 July, 2012, in Douro Region, Portugal. The event web site is http://dsai2012.utad.pt/The increase in rich and interactive content on the web has allowed the growth of the number and type of users that access them. This implies that such content should be accessible to anyone, including people with disabilities. Therefore, it should be accompanied with media alternatives (captions, audio description), which should be handled by an accessible user agent that provides support for them. This paper presents: 1) an approach with accessibility requirements following standards to include accessibility in a user agent for delivering accessible multimedia content, and based on it, 2) a conceptualization that provides an abstract user interface model with the ability to be integrated into the development process.This research work is supported by the Research Network MAVIR (S2009/TIC-1542 (www.mavir.net/)). We thank the European project ITEA UsiXML to provide the documentation of the UsiXML specification.Publicad

The Cosmology Large Angular Scale Surveyor Receiver Design

The Cosmology Large Angular Scale Surveyor consists of four instruments performing a CMB polarization survey. Currently, the 40 GHz and first 90 GHz instruments are deployed and observing, with the second 90 GHz and a multichroic 150/220 GHz instrument to follow. The receiver is a central component of each instrument's design and functionality. This paper describes the CLASS receiver design, using the first 90 GHz receiver as a primary reference. Cryogenic cooling and filters maintain a cold, low-noise environment for the detectors. We have achieved receiver detector temperatures below 50 mK in the 40 GHz instrument for 85% of the initial 1.5 years of operation, and observed in-band efficiency that is consistent with pre-deployment estimates. At 90 GHz, less than 26% of in-band power is lost to the filters and lenses in the receiver, allowing for high optical efficiency. We discuss the mounting scheme for the filters and lenses, the alignment of the cold optics and detectors, stray light control, and magnetic shielding.Comment: Fixed formatting of abstract; 20 Pages, 11 Figures, SPIE Conference Proceeding

Junior High School Students’ Abstraction In Learning Geometry

Abstraction is a fundamental process in learning mathematics. Although it is a fundamental process but it is still an unfamiliar issue in mathematics education. On the other side, geometry, one of the fields in mathematics, consists of abstracts ideas having big portion in Junior High School. It is known that in this stage most students’ still thinks in concrete orientation. That is why it is necessary to know how the abstraction process in learning geometry. The aims of this research are capturing the students’ abstraction process during geometry instruction process and capturing students’ abstraction process during solving geometry problems. It is a qualitative research study. This research was conducted at Public Junior High School I Cimahi in RSBI classes, which subjects are students in grade VII. The data were collected by observation, test, and interview. Further the data were analyzed using analytical induction and constant comparative techniques. The results of this research are (1) the type of students’ abstraction process when learning geometry is a theoretical abstraction process and (2) the students’ abstraction process in solving geometry problems in that class is a type of abstraction, namely empirical abstraction process. However, the student’s abstraction has emphasis in terms of aspects of abstraction. The aspect of identifying objects’ characteristics through field experiences is more dominant than others. Key Words: Abstraction, Geometry, Empirical abstraction, Theoretical Abstraction

Finding Mutated Subnetworks Associated with Survival in Cancer

Next-generation sequencing technologies allow the measurement of somatic mutations in a large number of patients from the same cancer type. One of the main goals in analyzing these mutations is the identification of mutations associated with clinical parameters, such as survival time. This goal is hindered by the genetic heterogeneity of mutations in cancer, due to the fact that genes and mutations act in the context of pathways. To identify mutations associated with survival time it is therefore crucial to study mutations in the context of interaction networks. In this work we study the problem of identifying subnetworks of a large gene-gene interaction network that have mutations associated with survival. We formally define the associated computational problem by using a score for subnetworks based on the test statistic of the log-rank test, a widely used statistical test for comparing the survival of two populations. We show that the computational problem is NP-hard and we propose a novel algorithm, called Network of Mutations Associated with Survival (NoMAS), to solve it. NoMAS is based on the color-coding technique, that has been previously used in other applications to find the highest scoring subnetwork with high probability when the subnetwork score is additive. In our case the score is not additive; nonetheless, we prove that under a reasonable model for mutations in cancer NoMAS does identify the optimal solution with high probability. We test NoMAS on simulated and cancer data, comparing it to approaches based on single gene tests and to various greedy approaches. We show that our method does indeed find the optimal solution and performs better than the other approaches. Moreover, on two cancer datasets our method identifies subnetworks with significant association to survival when none of the genes has significant association with survival when considered in isolation.Comment: This paper was selected for oral presentation at RECOMB 2016 and an abstract is published in the conference proceeding