Models of semantics

This thesis intends to develop application-level access control models to address several major security issues in enterprise environments. The first goal is to provide simple and efficient authorization specifications to reduce the complexity of security management. The second goal is to provide dynamic access control for Web service applications. The third goal is to provide an access control framework for Semantic Web services. In this thesis, an Authorization-Function-Based Role-based Access Control (FB-RBAC) model is proposed for controlling enterprise systems at the application level.

182p runthenight07 01-03-2023 12 3   Download

The purpose of the research "Habits and technology fit: a study of technology acceptance" is to study Habit-Technology Fit (HTF) as an approach to capture a dynamic mix of habits which are perceived as salient from the respondent’s perspective, and the effect of including it in the Unified Theory of Acceptance and Use of Technology (UTAUT) model framework. The HTF construct and its measurement were developed in order to capture multiple non-predetermined habits. All measures were semantically validated with Q-Sorting exercises, and their reliability was statistically confirmed.

255p runthenight04 02-02-2023 8 2   Download

Furthermore, experiments on the task of RE proved that data representation is one of the most influential factors to the model’s performance but still has many limitations. We propose a compositional embedding that combines several dominant linguistic as well as architectural features and dependency tree normalization techniques for generating rich representations for both words and dependency relations in the SDP

82p tamynhan1 13-06-2020 17 3   Download

Lecture “Natural language processing - Chapter 2: Fundamental algorithms and mathematical models” has contents: Probability theory and Bayes theorems (Concepts in probability, Bayes theorems, application of the probability theory in NLP).

14p dien_vi01 21-11-2018 34 1   Download

Our thesis shows the quality of semantic vector representation with random projection and Hyperspace Analogue to Language model under about the researching on Vietnamese. The main goal is how to find semantic similarity or to study synonyms in Vietnamese. We are also interested in the stability of our approach that uses Random Indexing and HAL to represent semantic of words or documents. We build a system to find the synonyms in Vietnamese called Semantic Similarity Finding System. In particular, we also evaluate synonyms resulted from our system.

55p 01202750693 09-06-2015 96 9   Download

This work describes an online application that uses Natural Language Generation (NLG) methods to generate walking directions in combination with dynamic 2D visualisation. We make use of third party resources, which provide for a given query (geographic) routes and landmarks along the way. We present a statistical model that can be used for generating natural language directions. This model is trained on a corpus of walking directions annotated with POS, grammatical information, frame-semantics and markup for temporal structure. ...

4p hongphan_1 15-04-2013 43 3   Download

ProLiV - Animated Process-modeler of Complex (Computational) Linguistic Methods and Theories - is a fully modular, flexible, XML-based stand-alone Java application, used for computer-assisted learning in Natural Language Processing (NLP) or Computational Linguistics (CL).

4p hongphan_1 15-04-2013 60 4   Download