Feature Extraction is a mechanism used to extract key phrases from any given text documents. This extraction can be weighted, ranked or semantic based. Weighted and Ranking based feature extraction normally assigns scores to extracted words based on various heuristics. Highest scoring words are seen as important. Semantic based extractions normally try to understand word meanings, and words wit...

Despite the obvious business value of visualizing similarities between elements of evolving information spaces and mapping these similarities e.g. onto geospatial reference systems, analysts are often more interested in how the semantic orientation (sentiment) towards an organization, a product or a particular technology is changing over time. Unfortunately, popular methods that process unstruc...

Due to the increasing growth of digital content on the internet and social media, sentiment analysis problem is one of the emerging fields. This problem deals with information extraction and knowledge discovery from textual data using natural language processing has attracted the attention of many researchers. Construction of sentiment lexicon as a valuable language resource is a one of the imp...

In the early 70’s, Dana Scott and Christopher Stratchey laid the foundations for the theory of denotational semantics of traditional programming languages. The aim pursued in this paper is to show how concepts such as semantic domains, semantic interpretation functions and denotations can be used to describe facilities for handling non-conventional info that combines object-orientation and data...

In this study we quantify for the first time electrophysiological components associated with incorporating long-term semantic knowledge with visuo-spatial information using two variants of a traditional matrix patterns task. Results indicated that the matrix task with greater semantic content was associated with enhanced accuracy and RTs in a change-detection paradigm; this was also associated ...

This thesis describes a machine learning system for understanding appraisal in design documents. In linguistics, analysis of attitudes expressed in text is known as appraisal, which is the writer's subjective attitude (i.e., the opinion, sentiment or attitude expressed) toward the semantic meaning. Semantic orientation is the aspect of appraisal that expresses the positive or negative stance of...

The introduction of service-orientation leads to significant improvements regarding flexibility in the choice of business partners and IT-systems. This requires an increased adaptability of enterprise software landscapes as the environment is more dynamic than the ones in traditional approaches. In this paper we present different types of adaptation scenarios for service compositions and their ...

According to Bondarko's functional grammar theory, combined with the corpus of Russian State Corpus and BCC Peking University, this paper discusses language expression means each subfield semantic field spatial orientational category in Chinese Languages, constructs structure directional field. The research results will help students better grasp grammatical direction prepositions. At same time...