Nuance Search-Related Patent Applications Published

Nuance Communications, which partners with Apple Computers to provide the voice recognition software behind Apple’s intelligent assistant Siri, had 4 patent applications published today at the USPTO that focus upon search and search technology. While the company has at least 274 granted patents and 104 pending patents listed as assigned to it at the US patent and trademark office, these appear to be the first that focus upon the operations of a search engine. They reference the Dragon Search application built for iPhones:

A screenshot from the patent showing the Dragon search interface from Nuance.

The topics covered in the Nuance patent portfolio primarily involve speech recognition technology, but include some areas that companies like Google have been focusing upon within a few of their patents as well, such as statistical language models and document segmentation algorithms, as well as a browser for the voice web which was filed in 1998.

Continue reading “Nuance Search-Related Patent Applications Published”

The New PageRank, Same as the Old PageRank?

When a judge writes a judicial opinion upon a case, he often includes more than just his ruling on the case. It usually contains an analysis of the present law, the legal atmosphere, and how the ultimate holding on the case was arrived at. Those written rulings can also include some legal opinions on issues that don’t necessarily play an essential role in the outcome of the case at hand, and those are often referred to as “dicta.”

When you read a patent, you’ll see that it’s broken into a number of parts. The most important of those is the claims section, which is what a patent examiner focuses upon when prosecuting a patent, and deciding whether or not it should be granted. There are also description sections in patents which give a richer and more detailed look at how the technology behind a patent might be implemented (with emphasis on the “might”). Often those descriptions include material that isn’t reflected within the claims section of a patent, and in many ways, those description sections could be considered as similar to the dicta that I mentioned sometimes appears within judicial opinions.

Stanford University was granted two new patents today under the name, Scoring documents in a database, both of which were filed at the United States Patent and Trademark Office on January 19, 2010. These two patents, assigned to Stanford and listing Lawrence Page as inventor, are described as continuation patents of the following patents assigned to Stanford which focus upon PageRank:

Continue reading “The New PageRank, Same as the Old PageRank?”

12 Google Link Analysis Methods That Might Have Changed

In the Google Inside Search blog, Google’s Amit Sighal published a post titled Search quality highlights: 40 changes for February that told us about many changes to how Google ranks pages, including the following:

Link evaluation. We often use characteristics of links to help us figure out the topic of a linked page. We have changed the way in which we evaluate links; in particular, we are turning off a method of link analysis that we used for several years. We often rearchitect or turn off parts of our scoring in order to keep our system maintainable, clean and understandable.

A diagram showing different values for links passing amongst three different web pages.

A lot of people were guessing which “method of link analysis” might have been changed, from PageRank being turned off, to anchor text being devalued, to Google ignoring rel=”nofollow” attributes in links, to others. I was asked my opinion by a few people, and mentioned that there were a number of potential approaches that Google might have changed.

Continue reading “12 Google Link Analysis Methods That Might Have Changed”