LSI

Latent Semantic Indexing or LSI for short. Google has been implementing the LSI technology it bought into its ranking algorithm. The “Google spiders” and other search engines are now using Latent Semantic Indexing. In laymens terms this means that they are looking for phrases in the content as opposed to just keywords, making the search engine more accurate.

The search bot understands, organizes, and extracts knowledge from websites and information repositories in a way that mimics human thought and enables more effective information retrieval.

Gone are the days when you would just put your keywords throughout your content and improve your rankings.

LSI has also come to be known as Theme Based Optimisation (TBO) and works by analysing language and determining relationships between different words, also known as co-occurrence. Search engines assess the theme quality of a site not just the keyword density, but an overall theme density.

For example, if you see a page with the word “spanish” on it and also the word “eggs”, you would know that the site is about cooking, possibly including a recipe for making ‘Spanish omelttes’. However, if you see the word “Spanish” and the word “language”, you would realize the site is about learning Spanish. This is a human skill that the search engines attempt to copy.

So we maximize on this situation by adding and updating good, informative and relevant content to your website, and keep doing so. If your content is good, but never changes or updates, you will start to slide down the rankings so this must be a constant excersize.