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 Information Extraction


Constructing Information-Lossless Biological Knowledge Graphs from Conditional Statements

arXiv.org Artificial Intelligence

Conditions are essential in the statements of biological literature. Without the conditions (e.g., environment, equipment) that were precisely specified, the facts (e.g., observations) in the statements may no longer be valid. One biological statement has one or multiple fact(s) and/or condition(s). Their subject and object can be either a concept or a concept's attribute. Existing information extraction methods do not consider the role of condition in the biological statement nor the role of attribute in the subject/object. In this work, we design a new tag schema and propose a deep sequence tagging framework to structure conditional statement into fact and condition tuples from biological text. Experiments demonstrate that our method yields a information-lossless structure of the literature.


Open Datasets for Machine Learning Lionbridge AI

#artificialintelligence

Datasets are an integral part of machine learning. Without high quality training datasets, machine learning algorithms would have no way of knowing how to conduct sentiment analysis, categorize products or understand foreign languages. This spreadsheet contains the ultimate list of open datasets for machine learning. Organized by industry and use case, this database contains a diverse range of 300 datasets to train machine learning models.


Event extraction based on open information extraction and ontology

arXiv.org Artificial Intelligence

The work presented in this master thesis consists of extracting a set of events from texts written in natural language. For this purpose, we have based ourselves on the basic notions of the information extraction as well as the open information extraction. First, we applied an open information extraction(OIE) system for the relationship extraction, to highlight the importance of OIEs in event extraction, and we used the ontology to the event modeling. We tested the results of our approach with test metrics. As a result, the two-level event extraction approach has shown good performance results but requires a lot of expert intervention in the construction of classifiers and this will take time. In this context we have proposed an approach that reduces the expert intervention in the relation extraction, the recognition of entities and the reasoning which are automatic and based on techniques of adaptation and correspondence. Finally, to prove the relevance of the extracted results, we conducted a set of experiments using different test metrics as well as a comparative study.


Guide to Twitter for Finance - Curating and Filtering Data, Trading Feeds, and Sentiment - tradersdna - resources for traders/investors for Forex, Stocks, Commodities, Bitcoin, Blockchain, Fintech and Forum

#artificialintelligence

From a trader's point of view, there is one commodity that is worth infinitesimally more than any other. And it's not cutting-edge technology, advanced technical analysis, or profound macroeconomic insight – although these are undoubtedly hugely valuable – it's information. Not just any information – after all, the world is filled with more information than even the most powerful computers could hope to store, and the most intelligent brains could hope to begin to comprehend. No, there's one type of information that has the potential to give traders a bigger edge than any other, and that's the latest information. Information that the rest of the market has yet to factor into their equations.


Ex-Twit: Explainable Twitter Mining on Health Data

arXiv.org Artificial Intelligence

This research question is one of the main motivations of our work to explain the prediction of model. Since most machine learning models provide no Twitter has been growing in popularity and now-a-days, it explanations for the predictions, their predictions is used everyday by people to express opinions about different are obscure for the human. The ability to explain topics, such as products, movies, health, music, politicians, a model's prediction has become a necessity events, among others. Twitter data constitutes a rich in many applications including Twitter mining. In source that can be used for capturing information about any this work, we propose a method called Explainable topic imaginable. This data can be used in different use cases Twitter Mining (Ex-Twit) combining Topic Modeling such as finding trends related to a specific keyword, measuring and Local Interpretable Model-agnostic Explanation brand sentiment, and gathering feedback about new products (LIME) to predict the topic and explain the and services. In this work, we use text mining to mine the model predictions. We demonstrate the effectiveness Twitter health-related data. Text mining is the application of of Ex-Twit on Twitter health-related data.


Text Analytics and Mining Detailed Definitions: Step Two in Advanced Analytics Introduction

#artificialintelligence

I hope you are enjoying the "Advanced Analytics Introduction" blog post series; here is a link to the previous segment (Step One) to provide some helpful background. In the previous installment, I provided an overview of the advanced analytics, data science and text analytics concepts. In this blog post, I review detailed definitions of text analytics and mining concepts to provide more context on this rapidly evolving market. In his book "Practical Text Mining and Statistical Analysis for Non-structured Text Data Applications", John Elder, Ph.D., characterized the text analytics concept best when he stated the following: The diagrams below also come from the same publication by Dr. Elder. In this first diagram, the text mining field is separated into seven "practice areas."


Unsupervised machine learning to analyse city logistics through Twitter

arXiv.org Machine Learning

City Logistics is characterized by multiple stakeholders that often have different views of such a complex system. From a public policy perspective, identifying stakeholders, issues and trends is a daunting challenge, only partially addressed by traditional observation systems. Nowadays, social media is one of the biggest channels of public expression and is often used to communicate opinions and content related to City Logistics. The idea of this research is that analysing social media content could help in understanding the public perception of City logistics. This paper offers a methodology for collecting content from Twitter and implementing Machine Learning techniques (Unsupervised Learning and Natural Language Processing), to perform content and sentiment analysis. The proposed methodology is applied to more than 110 000 tweets containing City Logistics key-terms. Results allowed the building of an Interest Map of concepts and a Sentiment Analysis to determine if City Logistics entries are positive, negative or neutral.


Text Analytics with Python: A Practitioner's Guide to Natural Language Processing: Dipanjan Sarkar: 9781484243534: Amazon.com: Books

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Leverage Natural Language Processing (NLP) in Python and learn how to set up your own robust environment for performing text analytics. The second edition of this book will show you how to use the latest state-of-the-art frameworks in NLP, coupled with Machine Learning and Deep Learning to solve real-world case studies leveraging the power of Python. This edition has gone through a major revamp introducing several major changes and new topics based on the recent trends in NLP. We have a dedicated chapter around Python for NLP covering fundamentals on how to work with strings and text data along with introducing the current state-of-the-art open-source frameworks in NLP. We have a dedicated chapter on feature engineering representation methods for text data including both traditional statistical models and newer deep learning based embedding models.


Yoga-Veganism: Correlation Mining of Twitter Health Data

arXiv.org Artificial Intelligence

Nowadays social media is a huge platform of data. People usually share their interest, thoughts via discussions, tweets, status. It is not possible to go through all the data manually. We need to mine the data to explore hidden patterns or unknown correlations, find out the dominant topic in data and understand people's interest through the discussions. In this work, we explore Twitter data related to health. We extract the popular topics under different categories (e.g. diet, exercise) discussed in Twitter via topic modeling, observe model behavior on new tweets, discover interesting correlation (i.e. Yoga-Veganism). We evaluate accuracy by comparing with ground truth using manual annotation both for train and test data.


Using Structured Representation and Data: A Hybrid Model for Negation and Sentiment in Customer Service Conversations

arXiv.org Artificial Intelligence

Twitter customer service interactions have recently emerged as an effective platform to respond and engage with customers. In this work, we explore the role of negation in customer service interactions, particularly applied to sentiment analysis. We define rules to identify true negation cues and scope more suited to conversational data than existing general review data. Using semantic knowledge and syntactic structure from constituency parse trees, we propose an algorithm for scope detection that performs comparable to state of the art BiLSTM. We further investigate the results of negation scope detection for the sentiment prediction task on customer service conversation data using both a traditional SVM and a Neural Network. We propose an antonym dictionary based method for negation applied to a CNN-LSTM combination model for sentiment analysis. Experimental results show that the antonym-based method outperforms the previous lexicon-based and neural network methods.