Search results for "Knowledge Acquisition"
showing 10 items of 47 documents
Handling Context-Sensitive Temporal Knowledge from Multiple Differently Ranked Sources
1999
In this paper we develop one way to represent and reason with temporal relations in the context of multiple experts. Every relation between temporal intervals consists of four endpoints’ relations. It is supposed that the context we know is the value of every expert competence concerning every endpoint relation. Thus the context for an interval temporal relation is one kind of compound expert’s rank, which has four components appropriate to every interval endpoints’ relation. Context is being updated after every new opinion is being added to the previous opinions about certain temporal relation. The context of a temporal relation collects all support given by different experts to all compon…
Reasoning with Multilevel Contexts in Semantic Metanetworks
2000
It is generally accepted that knowledge has a contextual component. Acquisition, representation, and exploitation of knowledge in context would have a major contribution in knowledge representation, knowledge acquisition, and explanation, as Brezillon and Abu-Hakima supposed in [Brezillon and Abu-Hakima, 1995]. Among the advantages of the use of contexts in knowledge representation and reasoning Akman and Surav [Akman and Surav, 1996] mentioned the following: economy of representation, more competent reasoning, allowance for inconsistent knowledge bases, resolving of lexical ambiguity and flexible entailment. Brezillon and Cases noticed however in [Brezillon and Cases, 1995] that knowledge-…
Dynamic Integration of Decision Committees
2000
Decision committee learning has demonstrated outstanding success in reducing classification error with an ensemble of classifiers. In a way a decision committee is a classifier formed upon an ensemble of subsidiary classifiers. Voting, which is commonly used to produce the final decision of committees has, however, a shortcoming. It is unable to take into account local expertise. When a new instance is difficult to classify, then it easily happens that only the minority of the classifiers will succeed, and the majority voting will quite probably result in a wrong classification. We suggest that dynamic integration of classifiers is used instead of majority voting in decision committees. Our…
Beyond path dependence: Explorative orientation, slack resources, and managerial intentionality to internationalize in SMEs
2015
Abstract Managerial intentionality plays an important role in a firm's selection of its internationalization path. In relation to small and medium sized enterprises (SMEs), most studies focus on the individual traits that foster managerial intentionality without considering organizational-level antecedents. This study seeks to address this gap by focusing on two organizational antecedents: the firm's exploration and exploitation orientations, and its slack resources. The firm's orientations affect the application of different learning processes, including knowledge acquisition, information interpretation, and knowledge diffusion, and they shape the subjective norms prevalent in the organiza…
Entry Assessment of Student Learning Preconditions in Higher Education: Implications for the Transition from Secondary to Tertiary Education in Germa…
2020
The acquisition of domain-specific knowledge and interdisciplinary skills such as critical thinking is increasingly gaining significance as key learning outcomes in higher education that are crucial for all professionals and engaged citizens and that enable lifelong learning. Despite this socio-political consensus, up until the last decade there have only been a few evidence-based insights into the competencies of higher education students. Therefore, the Germany-wide research program Modelling and Measuring Competencies in Higher Education (KoKoHs) was established in 2011 by the Federal Ministry of Education and Research. In the 85 projects, theoretical-conceptual competence models and cor…
Knowledge Acquisition from Multiple Experts Based on Semantics of Concepts
1999
This paper presents one approach to acquire knowledge from multiple experts. The experts are grouped into a multilevel hierarchical structure, according to the type of knowledge acquired. The first level consists of experts who have knowledge about the basic objects and their relationships. The second level of experts includes those who have knowledge about the relationships of the experts at the first level and each higher level accordingly. We show how to derive the most supported opinion among the experts at each level. This is used to order the experts into categories of their competence defined as the support they get from their colleagues.
Autonomous acquisition of natural language
2014
An important part of human intelligence is the ability to use language. Humans learn how to use language in a society of language users, which is probably the most effective way to learn a language from the ground up. Principles that might allow an artificial agents to learn language this way are not known at present. Here we present a framework which begins to address this challenge. Our auto-catalytic, endogenous, reflective architecture (AERA) supports the creation of agents that can learn natural language by observation. We present results from two experiments where our S1 agent learns human communication by observing two humans interacting in a realtime mock television interview, using…
Appetizer or main dish? Explaining the use of Facebook news posts as a substitute for other news sources
2019
An increasing number of, especially younger, users use Facebook as their primary source for news about political and societal issues. At the same time, research suggests that Facebook use contributes to societal knowledge gaps. Against this background, we investigate the antecedents of using Facebook as a substitute for other news sources. We argue that exposure to news posts on Facebook increases the feeling of being well-informed, regardless of actual knowledge acquisition. This might lead users, especially those with a low need for cognition (NfC), to use Facebook as a substitute for other news sources. We test these assumptions with an online survey (n=390) of German Internet users. Res…
Navigating high-choice European political information environments : a comparative analysis of news user profiles and political knowledge
2021
The transition from low- to high-choice media environments has had far-reaching implications for citizens’ media use and its relationship with political knowledge. However, there is still a lack of comparative research on how citizens combine the usage of different media and how that is related to political knowledge. To fill this void, we use a unique cross-national survey about the online and offline media use habits of more than 28,000 individuals in 17 European countries. Our aim is to (i) profile different types of news consumers and (ii) understand how each user profile is linked to political knowledge acquisition. Our results show that five user profiles – news minimalists, social m…
Dynamiques de classe et efficacité scolaire
2003
The present research aims at describing the efficiency of teaching practices involved in dynamic "teaching-training" processes. Our main approach consisted in relating in-class-monitoring to the results of knowledge-acquisition by pupils so as to better explain through what means the pupils’ knowledge and competence are acquired. At a theoretical level this implies combining the "process-product" paradigm along with the "ecological" paradigm [ 1]. Results obtained indicate that bringing together the analysis of teaching practices with the evaluation of their impact "which are still limited to an exploratory stage" are a method well-worth pursuing. [ 1] See above the general introduction to …