Meaning-focused and Quantum-inspired Information Retrieval

In recent years, quantum-based methods have promisingly integrated the traditional procedures in information retrieval (IR) and natural language processing (NLP). Inspired by our research on the identification and application of quantum structures in cognition, more specifically our work on the representation of concepts and their combinations, we put forward a 'quantum meaning based' framework for structured query retrieval in text corpora and standardized testing corpora. This scheme for IR rests on considering as basic notions, (i) 'entities of meaning', e.g., concepts and their combinations and (ii) traces of such entities of meaning, which is how documents are considered in this approach. The meaning content of these 'entities of meaning' is reconstructed by solving an 'inverse problem' in the quantum formalism, consisting of reconstructing the full states of the entities of meaning from their collapsed states identified as traces in relevant documents. The advantages with respect to traditional approaches, such as Latent Semantic Analysis (LSA), are discussed by means of concrete examples.Comment: 11 page

Quaker Virtue Ethics: Religious Life without Creeds

Beliefs are conventionally understood to guide people’s actions. Put another way, the actions which people take are understood to be products of what they believe. However, these claims are challenged by the fact that many Quakers hold that they do not have a creed. This feature of Quakerism creates a tension with the theory that actions must follow from beliefs. That tension prompts a question: How can Quakers make ethical decisions in a clear and decisive manner when they lack a creed? The answer to such a question is significant for two reasons. First, it provides insights into the specific case of Quakerism. Second, it brings about an important examination of the role which creeds play in the ethics of religions in general. Many variations of Quaker ethics resemble virtue ethics. This is not to say that Quakerism and the tradition of virtue ethics share a common origin, as they do not. Rather, the tendencies and values of many Quakers cause them to approach moral dilemmas in a manner which closely resembles that of virtue ethics. Accordingly, virtue ethics can be used as a tool with which one can understand, explain, and defend the ethical reasoning of many Quakers

Gender differences in the ICT profile of University students : a quantitative analysis

This study responds to a call for research on how gender differences emerge in young generations of computer users. A large-scale survey involving 1138 university students in Flanders (Belgium) was conducted to examine the relationship between gender, computer access, attitudes, and uses in both learning and everyday activities of university students. The results show that women have a less positive attitude towards computers in general. However, their attitude towards computers for educational purposes does not differ from men’s. In the same way, being female is negatively related to computer use for leisure activities, but no relationship was found between gender and study-related computer use. Based on the results, it could be argued that computer attitudes are context-dependent constructs and that when dealing with gender differences, it is essential to take into account the context-specific nature of computer attitudes and uses

EDMS Use in Local E-Government: Extent of Use and Overall Performance Mediated by Routinization and Infusion

This study analyzes the effects of several post-adoption behaviors (extent of use, routinization and infusion) on overall performance in using an Electronic Document Management System (EDMS). Furthermore, we test whether the routinization and infusion variables mediate the influence of the extent of use on overall performance. This research collects data from a survey answered by 2,175 employees (EDMS users) of Portuguese municipalities. The Partial Least Squares technique is applied to test the model. The results showed that routinization is directly predicted by the extent of use, whereas infusion is directly affected by the extent of use and also by routinization. Consequently, such post-adoptive behaviors are interrelated not only in a sequential process, but also in parallel. In addition, overall performance is directly influenced by routinization and infusion. Finally, an indirect effects analysis shows that routinization and infusion mediate the relationship between extent of use and overall performance

Doing Good Today and Better Tomorrow: A Roadmap to High Impact Philanthropy Through Outcome-Focused Grantmaking

Describes Hewlett's experience with implementing the outcome-focused grantmaking (OFG) process in its environment program as a guide for identifying a portfolio of grants with maximum impact. Outlines trials and errors, recent innovations, and challenges