as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
describe two commonly used methods for cleaning up text data
user
common methods for cleaning up text data are string replacement, tokenization, stemming and lemmatization, and regular expressions. string replacement involves replacing certain words or phrases with others, such as abbreviations with full words. tokenization is the process of breaking a large string of text into individual words, phrases, and symbols. stemming and lemmatization are techniques used to reduce words to their base form. finally, regular expressions can be used to identify patterns in text and replace them with desired outputs.
assistant