Page 212 - DCOM507_STOCK_MARKET_OPERATIONS

Unit 10: Technical Analysis

Self Assessment Notes
Fill in the blanks:
13. Technical analysis is not as .......................………… as it appears to be.
14. A number of tests have been conducted to obtain statistically reliable estimates of the
worth of various technical .......................………… strategies.
15. One of the major .......................………… of technical analysis is that the entire data is based
on the past.

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Case Study PubMed Trend Analysis Using Pipeline Pilot

eeping up to date with the explosion of published literature is virtually impossible
these days. What are the hot topics and trends in science and industry? How are
Kdiscoveries in one field of research impacting others, particularly yours? It’s a
catch-22 situation – you need to know what’s going on in your field and related fields, but
at the same time you need to be doing your own research. How can you most efficiently
find the papers you need to read and keep abreast of developing fields of research? One
way to help with this problem is to quickly and easily track trends and correlations in
publications, for example to PubMed. These analyses can help reveal emerging topics and
relationships in science, as well as those that are yesterday’s news.
Trend Analysis

Trend and correlation analyses can be performed using the Text Analytics Collection
(TAC) for Pipeline Pilot. TAC includes components dedicated for the search, retrieval,
analysis and display of documents. To perform a trend analysis to PubMed, and show the
results as a bar chart, set up a protocol similar to what is shown below:

The key here is the component labelled “Yearly Topic Trend in PubMed”. This component
takes a text query (i.e., the topic of interest) and a range of years as input and calculates the
number of articles in PubMed matching that query each year. The component also calculates
the total number of published articles for a given year, meaning that both raw counts for
the topic of interest and the fraction of publications for that topic, compared with all
publication, in a given year, can be computed.
The results can be visualized in a number of ways. The graphic below shows the results
viewed in a bar chart, which is part of the Reporting Collection for Pipeline Pilot.
Contd...

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