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Recall vs. Precision

Stephen Robertson’s talk at the CIKM 2011 Industry event caused me to think about recall and precision again. Over the last decade precision-oriented searches have become synonymous with web searches, while recall has been relegated to narrow verticals. But is precision@5 or NCDG@1 really the right way to measure the effectiveness of interactive search? If [...] → Read More: Recall vs. Precision

HCIR 2011 keynote

HCIR 2011 took place almost three weeks ago, but I am just getting caught up after a week at CIKM 2011 and an actual almost-no-internet-access vacation. I wanted to start off my reflections on HCIR with a summary of Gary Marchionini‘s keynote, titled “HCIR: Now the Tricky Part.” Gary coined the term “HCIR” and has been a [...] → Read More: HCIR 2011 keynote

Looking for an HCIR intern

Looking for an intern to help evaluate an interactive search system → Read More: Looking for an HCIR intern

No such thing as bad press?

A recent NY Times article exposed the machinations of a sleazy guy who ran an online business that relied on links — positive, negative, whatever — to his web site that caused it to be promoted in Google search results. In fact, he found that by being nasty to his customers, his rankings improved. The [...] → Read More: No such thing as bad press?

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