PQI
The Predictive Quantities Indicator (PQI)
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The Global Language Monitor’s proprietary algorithm, the Predictive Quantities Indicator (PQI) is the basis of our analytical engine.
The PQI tracks the frequency of words and phrases in the global print and electronic media, on the Internet, throughout the Blogosphere, throughout Social Media as well as accessing proprietary databases (Factiva, Lexis-Nexis, etc.).
Once a keyword base index is created (including selected keywords, phrases, ‘excluders’ and ‘penumbra’ words), ‘timestamps’ and a ‘media universe’ are determined.
The PQI is a weighted Index, factoring in: Long-term trends, Short-term changes, Momentum, and Velocity. As such it can create ’signals’ that can be used in a variety of applications.
Outputs include: the raw PQI, a Directional Signal, or a Relative Ranking with 100 as the base.
If you are interested in taking a closer look at the methodology underlying the PQI, see the slide show below.
A more detail look is available upon the signing of a NDA (non-disclosure agreement). We will then take you through the methodology in detail as we have done with numerous technology organizations, government agencies, and media organizations. If you would like to pursue this option, please send email to pjjp@post.harvard.edu.
Click here for a slide show explaining the PQI and how it underlies our various products and services
The New York Times: The Power of Words features the Global Language Monitor and the PQI.
The Power of Words
Sunday, January 29, 2006. This analysis measured the likihood of a real estate Bubble in New York City.