String processing of clickstream data

A computer system comprising:

• memory hardware storing computer-executable instructions;
• and
• processor hardware configured to execute the instructions, wherein the instructions include:
• assigning a plurality of unique symbols to a plurality of potential interactions with a website, respectively;
• obtaining a plurality of interaction symbol sequences of a plurality of browsing sessions, respectively, wherein:
• each browsing session corresponds to a visitor of the website;
• for each browsing session, the interaction symbol sequence of the browsing session is a sequence of symbols, from among the plurality of unique symbols, that corresponds, respectively, to a sequence of interactions with the website visited during the browsing session by the corresponding visitor;
• and
• generating a master string including the plurality of interaction symbol sequences by concatenating the plurality of interaction symbol sequences and a plurality of sentinel symbols together such that at least one sentinel symbol exists between each consecutive pair of interaction symbol sequences in the master string.

A method comprising:

• assigning a first plurality of unique symbols to a plurality of potential interactions with a website, respectively;
• determining whether a change to the website has been made since the first plurality of unique symbols were assigned;
• in response to determining that a change to the website has been made, assigning a second plurality of unique symbols to a plurality of potential interactions with a website, respectively
• obtaining a plurality of asserted interaction symbol sequences of a plurality of browsing sessions, respectively, wherein:
• each browsing session corresponds to a visitor of the website;
• and
• for each browsing session, the asserted interaction symbol sequence of the respective browsing session is a sequence of symbols, from among the second plurality of unique symbols, that corresponds, respectively, to a sequence of asserted interactions with the website visited during the respective browsing session by the corresponding visitor.