Improving novelty in streaming recommendation using a context model

Also published online by CEUR Workshop Proceedings (CEUR-WS.org, ISSN 1613-0073) In recent years there has been an increasing research interest in novelty/diversity detection in Information Retrieval and in Recommendation Systems. We propose a model that increases the novelty of recommendations using a context user profile that was created automatically using self-organizing maps. Our system was evaluated on the Reuters Corpus Volume 1 and our experiments show that filtering the recommended items using a novelty score derived from the contextbased user profile provides better search results in terms of novel information that is presented to the user.This work was supported by the Ministerio de Educaci on y Ciencia under the grant N. TIN2011-28538-C02, Novelty, di- versity, context and time: newdimensions in next-generation information retrieval and recommender systems

Using the reader's context to customize news streams

This is an electronic version of the paper presented at the Jornadas de Ingeniería del Software y Bases de Datos, JISBD 2011, held in A Coruña on 2011Many people today subscribe to streaming news services, and their number can be expected to grow together the number of web sites that offer a streaming service using protocols such as Real Simple Syndication. In this paper we present a method, and the relative algorithms, for ranking the news for relevance based on the working context of the reader. We use the contents of the reader’s computer as an indication of his or her interests, and build with them a suitable context representation. We then use it to filter the incoming stream of news.The authors were supported in part by the Ministerio de Educación y Ciencia under the grant N. MEC TIN2008-06566-C04-02, Information Retrieval on different media based on multidimensional models: relevance, novelty, personalization and context

Context based semantics for multimodal retrieval

Alexandra Dumitrescu, Simone Santini, "Context based semantics for multimodal retrieval", Proc. SPIE 7255, Multimedia Content Access: Algorithms and Systems III, 72550C (2009). Copyright 2009 Society of Photo‑Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibitedThis paper proposes an alternative to formal annotation for the representation of semantics, and presents an extension to it capable of handling multimedia (text and images) documents. The article argues that meaning is not a property of a document, but an outcome of a contextualized and situated process of interpretation. The consequence of this position is that one should not quite try to represent the meaning of a document (the way formal annotation does), but the context of the activity of which search is part. We present some general considerations on the representation and use of the context, and a simple example of a technique to encode the context represented by the documents collected in the computer in which one is working, and to use them to direct search. We show preliminary results showing that even this rather simpleminded context representation can lead to considerable improvements with respect to commercial search engines both for text and images

The context as a determinant of semantics: use of the local context of a personal computer to conduct searches on the Web

Máster en Ingeniería en Informática y de Telecomunicacione

A language for the integration of web sources

This is an electronic version of the paper presented at the IADIS International Conference WWW / INTERNET 2006, held in Murcia on 2006This paper presents a language for the creation of data sources in mediation systems through navigation in web sites. The general idea of the language is to “thread together,” so to speak, existing systems that parse and analyze single web pages into a navigation procedure spanning several pages of a web site, pages from different web sites, or web pages and other data repositories

Research Regarding Connections between Risks and Processes within Small and Medium Enterprises

AbstractBusiness process approach is a current concern for many scholars and practitioners as the performance of any organization is directly influenced on how the objectives of these activities are achieved. The methodology framework consists of a literature review regarding the main concepts which are underlying the connection between risk and process. Main findings of the study will comprise of identifying the risks along with the trigger causes or circumstances and their potential effect not only on the activity, but also on the overall process. The importance to detect the risks whose impact has critical effect on the SMEs activity in terms of sustainable development and business continuity will be emphasized. In this respect, the potential processes highly exposed to risks are the most reliable indicators highlighting where an SME is vulnerable and to where should resources be directed to. A clear understanding of the types and intensity of the relationships and interactions between processes and their particular risks leads to cost effective decisions regarding undertaking long term mitigating strategies. The awareness of the link between different types of processes with their specific risks has become highly important as the overall vulnerability of an enterprise is enlarging in line with the business development

Conceptual modelling of human resource evaluation process

Taking into account the highly diverse tasks which employees have to fulfil due to complex requirements of nowadays consumers, the human resource within an enterprise has become a strategic element for developing and exploiting products which meet the market expectations. Therefore, organizations encounter difficulties when approaching the human resource evaluation process. Hence, the aim of the current paper is to design a conceptual model of the aforementioned process, which allows the enterprises to develop a specific methodology. In order to design the conceptual model, Business Process Modelling instruments were employed - Adonis Community Edition Business Process Management Toolkit using the ADONIS BPMS Notation. The conceptual model was developed based on an in-depth secondary research regarding the human resource evaluation process. The proposed conceptual model represents a generic workflow (sequential and/ or simultaneously activities), which can be extended considering the enterprise’s needs regarding their requirements when conducting a human resource evaluation process. Enterprises can benefit from using software instruments for business process modelling as they enable process analysis and evaluation (predefined / specific queries) and also model optimization (simulations)