Text Representation
Text representation refers to the process of converting text data into a numerical format that can be easily processed by machine learning algorithms. This is an important step in natural language processing and text analytics, as most machine learning algorithms require numerical input. Text representation techniques include bag-of-words, term frequency-inverse document frequency (TF-IDF), word embeddings, and topic modeling. Bag-of-words represents text as a collection of words, ignoring grammar and word order. TF-IDF assigns weights to words based on their frequency in a document and their rarity across all documents. Word embeddings represent words as dense vectors in a high-dimensional space, capturing semantic relationships between words. Topic modeling identifies latent topics in a corpus of text, allowing for the discovery of underlying themes and patterns.
Your Previous Searches
Random Picks
- Vehicle-to-Infrastructure (V2I): Vehicle-to-Infrastructure (V2I) is a communication technology that enables vehicles to exchange information with the surrounding infrastructure, such as traffic lights, road signs, and other vehicles. V2I technology uses wireless communicat ... Read More >>
- Cash Flow: Cash flow is the net amount of cash and cash-equivalents being transferred into and out of a business. In data science, cash flow analysis is used to understand the financial health of a business by analyzing its cash inflows and outflows. ... Read More >>
- Significance Level: In statistics, the significance level is the probability of rejecting the null hypothesis when it is actually true. It is denoted by alpha (α) and is typically set at 0.05 or 0.01. The significance level determines the threshold for determ ... Read More >>
Top News
Tech giants see emissions surge 150 percent in 3 years amid AI boom: UN...
Artificial intelligence, cloud computing and data centres led to a spike in electricity demand between 2020 and 2023....
News Source: Al Jazeera English on 2025-06-06
‘Ghost networks' are harming patients, but attempts to eliminate them have fal...
Insurance companies often refer patients to lists of providers who are unreachable, out of network or don’t accept new patients....
News Source: NBC News on 2025-06-05
Palantir CEO Karp says AI is dangerous and 'either we win or China will win'...
Palantir CEO Alex Karp said the artificial intelligence arms race between the U.S. and China will culminate in one country coming out on top....
News Source: NBC News on 2025-06-05
Palantir has soared 74% this year alone. 3 reasons why it's been one of the worl...
Palantir was the second-most bought stock among retail traders in the last five days, according to a firm that tracks flows from individual investors....
News Source: Business Insider on 2025-06-05
Harris-Walz campaign may have been targeted by iPhone hackers, cybersecurity fir...
One of the few companies to specialize in iPhone cybersecurity said that it has uncovered evidence of a potentially groundbreaking hacking campaign....
News Source: NBC News on 2025-06-05