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Articles 31 - 40 of 40
Full-Text Articles in Engineering
Semantics-Based Summarization Of Entities In Knowledge Graphs, Kalpa Gunaratna
Semantics-Based Summarization Of Entities In Knowledge Graphs, Kalpa Gunaratna
Browse all Theses and Dissertations
The processing of structured and semi-structured content on the Web has been gaining attention with the rapid progress in the Linking Open Data project and the development of commercial knowledge graphs. Knowledge graphs capture domain-specific or encyclopedic knowledge in the form of a data layer and add rich and explicit semantics on top of the data layer to infer additional knowledge. The data layer of a knowledge graph represents entities and their descriptions. The semantic layer on top of the data layer is called the schema (ontology), where relationships of the entity descriptions, their classes, and the hierarchy of the …
A Framework For Social Network Sentiment Analysis Using Big Data Analytics, Bharat Sri Harsha Karpurapu
A Framework For Social Network Sentiment Analysis Using Big Data Analytics, Bharat Sri Harsha Karpurapu
All ETDs from UAB
The primary research of this thesis focused on the development of a Big Data framework for performing sentiment analysis on social networking sites. Over the last decade, social media has been gaining lots of popularity for sharing thoughts and feelings with a user base of over two billion users. Social networking sites such as Twitter, Facebook, and Instagram are increasingly becoming huge repositories of thoughts and opinions on a wide variety of topics. Several public and private organizations, such as Government and companies are attempting to exploit the expressed preferences, opinions, and attitudes regarding politics, commercial products and other matters …
Laff-O-Tron: Laugh Prediction In Ted Talks, Andrew D. Acosta
Laff-O-Tron: Laugh Prediction In Ted Talks, Andrew D. Acosta
Master's Theses
Did you hear where the thesis found its ancestors? They were in the "parent-thesis"! This joke, whether you laughed at it or not, contains a fascinating and mysterious quality: humor. Humor is something so incredibly human that if you squint, the two words can even look the same. As such, humor is not often considered something that computers can understand. But, that doesn't mean we won't try to teach it to them.
In this thesis, we propose the system Laff-O-Tron to attempt to predict when the audience of a public speech would laugh by looking only at the text of …
An Empirical Study Of Semantic Similarity In Wordnet And Word2vec, Abram Handler
An Empirical Study Of Semantic Similarity In Wordnet And Word2vec, Abram Handler
University of New Orleans Theses and Dissertations
This thesis performs an empirical analysis of Word2Vec by comparing its output to WordNet, a well-known, human-curated lexical database. It finds that Word2Vec tends to uncover more of certain types of semantic relations than others -- with Word2Vec returning more hypernyms, synonomyns and hyponyms than hyponyms or holonyms. It also shows the probability that neighbors separated by a given cosine distance in Word2Vec are semantically related in WordNet. This result both adds to our understanding of the still-unknown Word2Vec and helps to benchmark new semantic tools built from word vectors.
Tspoons: Tracking Salience Profiles Of Online News Stories, Kimberly Laurel Paterson
Tspoons: Tracking Salience Profiles Of Online News Stories, Kimberly Laurel Paterson
Master's Theses
News space is a relatively nebulous term that describes the general discourse concerning events that affect the populace. Past research has focused on qualitatively analyzing news space in an attempt to answer big questions about how the populace relates to the news and how they respond to it. We want to ask when do stories begin? What stories stand out among the noise? In order to answer the big questions about news space, we need to track the course of individual stories in the news. By analyzing the specific articles that comprise stories, we can synthesize the information gained from …
Extraction And Classification Of Drug-Drug Interaction From Biomedical Text Using A Two-Stage Classifier, Majid Rastegar-Mojarad
Extraction And Classification Of Drug-Drug Interaction From Biomedical Text Using A Two-Stage Classifier, Majid Rastegar-Mojarad
Theses and Dissertations
One of the critical causes of medical errors is Drug-Drug interaction (DDI), which occurs when one drug increases or decreases the effect of another drug. We propose a machine learning system to extract and classify drug-drug interactions from the biomedical literature, using the annotated corpus from the DDIExtraction-2013 shared task challenge. Our approach applies a two-stage classifier to handle the highly unbalanced class distribution in the corpus. The first stage is designed for binary classification of drug pairs as interacting or non-interacting, and the second stage for further classification of interacting pairs into one of four interacting types: advise, effect, …
Knowledge Extraction From Work Instructions Through Text Processing And Analysis, Abhiram Koneru
Knowledge Extraction From Work Instructions Through Text Processing And Analysis, Abhiram Koneru
All Theses
The objective of this thesis is to design, develop and implement an automated approach to support processing of historical assembly data to extract useful knowledge about assembly instructions and time studies to facilitate the development of decision support systems, for a large automotive original equipment manufacturer (OEM). At a conceptual level, this research establishes a framework for sustainable and scalable approach to extract knowledge from big data using techniques from Natural Language Processing (NLP) and Machine Learning (ML). Process sheets are text documents that contain detailed instructions to assemble a portion of the vehicle, specification of parts and tools to …
Natural Language Document And Event Association Using Stochastic Petri Net Modeling, Michael Thomas Mills
Natural Language Document And Event Association Using Stochastic Petri Net Modeling, Michael Thomas Mills
Browse all Theses and Dissertations
The purpose of this research is to design and implement a new methodology that captures the natural language understanding of events from English natural language text and model it using Stochastic Petri Nets. To establish a baseline of recent natural language processing (NLP) and understanding (NLU) research, two surveys are presented. One is a general survey in NLP and NLU methodologies for processing multi-documents. It summarizes and presents methodologies in terms of their features, capabilities, and maturity. The second survey focuses on graph-based methods for NL text processing and understanding and analyzes them in terms of their functional descriptions, capabilities …
Controversy Trend Detection In Social Media, Rajshekhar Vishwanath Chimmalgi
Controversy Trend Detection In Social Media, Rajshekhar Vishwanath Chimmalgi
LSU Master's Theses
In this research, we focus on the early prediction of whether topics are likely to generate significant controversy (in the form of social media such as comments, blogs, etc.). Controversy trend detection is important to companies, governments, national security agencies, and marketing groups because it can be used to identify which issues the public is having problems with and develop strategies to remedy them. For example, companies can monitor their press release to find out how the public is reacting and to decide if any additional public relations action is required, social media moderators can moderate discussions if the discussions …
A System For Natural Language Unmarked Clausal Transformations In Text-To-Text Applications, Daniel Miller
A System For Natural Language Unmarked Clausal Transformations In Text-To-Text Applications, Daniel Miller
Master's Theses
A system is proposed which separates clauses from complex sentences into simpler stand-alone sentences. This is useful as an initial step on raw text, where the resulting processed text may be fed into text-to-text applications such as Automatic Summarization, Question Answering, and Machine Translation, where complex sentences are difficult to process. Grammatical natural language transformations provide a possible method to simplify complex sentences to enhance the results of text-to-text applications. Using shallow parsing, this system improves the performance of existing systems to identify and separate marked and unmarked embedded clauses in complex sentence structure resulting in syntactically simplified source for …