Discreetly Exploiting Inter-session Information for Session-based Recommendation

Limited intra-session information is the performance bottleneck of the early GNN based SBR models. Therefore, some GNN based SBR models have evolved to introduce additional inter-session information to facilitate the next-item prediction. However, we found that the introduction of inter-session information may bring interference to these models. The possible reasons are twofold. First, inter-session dependencies are not differentiated at the factor-level. Second, measuring inter-session weight by similarity is not enough. In this paper, we propose DEISI to solve the problems. For the first problem, DEISI differentiates the types of inter-session dependencies at the factor-level with the help of DRL technology. For the second problem, DEISI introduces stability as a new metric for weighting inter-session dependencies together with the similarity. Moreover, CL is used to improve the robustness of the model. Extensive experiments on three datasets show the superior performance of the DEISI model compared with the state-of-the-art models

Supersymmetry breaking

These lectures provide a simple introduction to supersymmetry breaking. After presenting the basics of the subject and illustrating them in tree-level examples, we discuss dynamical supersymmetry breaking, emphasizing the role of holomorphy and symmetries in restricting dynamically-generated superpotentials. We then turn to mechanisms for generating the MSSM supersymmetry-breaking terms, including ``gravity mediation'', gauge mediation, and anomaly mediation. We clarify some confusions regarding the decoupling of heavy fields in general and D-terms in particular in models of anomaly-mediation.Comment: 26 pages. Lectures given at the Les Houches Summer School (Session LXXXIV) on ``Particle Physics Beyond the Standard Model'', Les Houches, France, August 1-26, 200

Introduction to the Topaz Framework and the Ambra Publishing Platform

4th International Conference on Open RepositoriesThis presentation was part of the session : Conference PresentationsDate: 2009-05-19 03:00 PM – 04:30 PMThis presentation is an introduction to Topaz, an Open Source content modeling and storage framework that uses the Fedora Service Framework and Mulgara semantic technology as the core engine, and Ambra, a publishing application built on the Topaz framework.  We will discuss the architecture of Topaz and some of the semantic technologies created to provide more flexibility with data than relational models. We will review the Ambra publishing platform, the "Web 2.0" features built to foster collaboration and participation, and its new methods for disseminating and sharing scientific information.Moore Foundatio

Beyond the Standard Model with noncommutative geometry, strolling towards quantum gravity

Noncommutative geometry, in its many incarnations, appears at the crossroad of various researches in theoretical and mathematical physics: from models of quantum space-time (with or without breaking of Lorentz symmetry) to loop gravity and string theory, from early considerations on UV-divergencies in quantum field theory to recent models of gauge theories on noncommutative spacetime, from Connes description of the standard model of elementary particles to recent Pati-Salam like extensions. We list several of these applications, emphasizing also the original point of view brought by noncommutative geometry on the nature of time. This text serves as an introduction to the volume of proceedings of the parallel session "Noncommutative geometry and quantum gravity", as a part of the conference "Conceptual and technical challenges in quantum gravity" organized at the University of Rome "La Sapienza" in September 2014

TEACHER PERCEPTIONS & PRACTICE OF TECHNOLOGY INTEGRATION BEFORE AND AFTER PICRAT MATRIX PROFESSIONAL DEVELOPMENT INTERVENTION

Professional development provides support and training to teachers using new technologies. Several educational technology models, guidelines, and frameworks have provided educators a guide to effective technology integration. Building upon previous models like the SAMR model (Puentedura, 2013), the TPCK model (Misrah and & Koehler, 2005), and the RAT model (Hughes, 1998), a new model called the PICRAT matrix (Kimmons, 2018) has emerged. PICRAT accounts for both the student’s interaction with educational technology and the teacher\u27s use of technology in instructional practice. The purpose of this study was to examine teacher perceptions and instructional practice on educational technology before and after the introduction of the PICRAT matrix through a professional development intervention session. The participants were secondary educators from various school districts from the Long Island region of New York. Data for teacher perceptions were collected via a pre-survey and post-survey. Participants also attended a professional development session on the PICRAT matrix. Teacher practice was examined by collecting samples of lesson activities as documentation before and after the professional development session. The lesson activities were evaluated using the PICRAT matrix as an instrument by the researcher before and after the professional development session. Interviews were conducted with participants that shifted the most amount of spaces on the PICRAT matrix. The findings determined that participants immediately had a shift in their perceptions and instructional practice after the professional development session. They were able to implement higher levels of technology integration after just one professional development session. Stakeholders should consider the benefits of focused professional development on educational technology integration models, in particular, PICRAT as an important part of their professional development offerings to their educators. Future researchers could expand the scope, sample size, and length of the study to further test the findings

Triangulating Abuse Liability Assessment for Flavoured Cigar Products Using Physiological, Behavioural Economic and Subjective Assessments: A Within-subjects Clinical Laboratory Protocol

Introduction In the USA, Food and Drug Administration regulations prohibit the sale of flavoured cigarettes, with menthol being the exception. However, the manufacture, advertisement and sale of flavoured cigar products are permitted. Such flavourings influence positive perceptions of tobacco products and are linked to increased use. Flavourings may mask the taste of tobacco and enhance smoke inhalation, influencing toxicant exposure and abuse liability among novice tobacco users. Using clinical laboratory methods, this study investigates how flavour availability affects measures of abuse liability in young adult cigarette smokers. The specific aims are to evaluate the effect of cigar flavours on nicotine exposure, and behavioural and subjective measures of abuse liability. Methods and analyses Participants (projected n=25) are healthy smokers of five or more cigarettes per day over the past 3 months, 18–25 years old, naive to cigar use (lifetime use of 50 or fewer cigar products and no more than 10 cigars smoked in the past 30 days) and without a desire to quit cigarette smoking in the next 30 days. Participants complete five laboratory sessions in a Latin square design with either their own brand cigarette or a session-specific Black & Mild cigar differing in flavour (apple, cream, original and wine). Participants are single-blinded to cigar flavours. Each session consists of two 10-puff smoking bouts (30 s interpuff interval) separated by 1 hour. Primary outcomes include saliva nicotine concentration, behavioural economic task performance and response to various questionnaire items assessing subjective effects predictive of abuse liability. Differences in outcomes across own brand cigarette and flavoured cigar conditions will be tested using linear mixed models

Bogota culture for foreign language exchange

A lot of time after the investigation about the perception from foreign people about our country, is important not leave behind the great help that this project would give to a great projection. Clearly is a strong point to know that foreigners enjoy the culture that day by day live while they study our idiom in the capital of our country. Therefore, once we worked in project like that, where found out the perception of foreigners that live in Bogota, we can approach a proposal that helps and gives a new way of language exchange, where foreigners find a different way to learn Spanish and people who study another idiom have a comfortable way to practice it.TABLE OF ANEXES GREETINGS ABSTRACT INTRODUCTION RATIONALE APPROACHING PROBLEM STATEMENT OBJECTIVES GENERAL OBJECTIVE SPECIFIC OBJECTIVES BACKGROUND THEORETICAL FRAMEWORK What is tandem learning? Principles Options Global Symmetry Theories From language learning to Tandem learning Culture Bogota culture Language exchange and culture MODELS OF LANGUAGE EXCHANGE International models My language exchange Livemocha National models Language Exchange: Nueva Lengua Conversation Exchange - Learn foreign languages in Bogota BOGOTA CULTURE FOR FOREIGN LANGUAGE EXCHANGE GRINGO TUESDAYS PRACTICA EN LA CIUDAD RESEARCH METHOD Line of investigation The type of study Participants Evaluation period Data collection instruments ACTIVITY: GROUP SESSION DATA ANALYSIS SESSION No 1 SESSION No 2 CATEGORIES AND CODES INTERPRETATION OF DATA MATRIX OF RESULTS SURVEY ANALYSIS CONCLUSIONS REFERENCES WEBGRAPHY AUTHORS ANEXES PROJECTIONSPregradoProfesional en Lenguas ModernasLenguas Moderna

EPFL lab session 2/2: Introduction to Hidden Markov Models

Lab sessions given in relation to Herve Bourlard's Speech Recognition course at EPFL (Ecole Polytechnique Federale de Lausanne), second semester 2001. The full session is available from the web as ftp://ftp.idiap.ch/pub/sacha/labs/Session2.tgz