Grouping documents by content similarity

A server computing system comprising:

• a memory;
• and
• a processing device operatively coupled to the memory, the processing device to:
• determine a first set of document identifiers (IDs) for a first set of documents of the corpus of documents, the first set of documents identified responsive to a search query;
• obtain at least one shingle corresponding to the first set of document IDs;
• identify a second set of document IDs corresponding to the obtained at least one shingle;
• group the second set of document IDs in a grouping data structure based on document IDs;
• determine resulting document IDs from the grouping data structure, wherein each resulting document ID from the resulting document IDs is determined based on a threshold number of occurrences;
• associate resulting documents of the first set of documents that correspond to the resulting document IDs with one another in search results generated responsive to the search query to create a final search result to send to a user;
• and
• responsive to one of the resulting document IDs not comprised in the first set of document IDs, provide a document corresponding to the one of the resulting document IDs as a suggested related document in the search results.

A non-transitory computer readable storage medium storing instructions that, when executed by a processing device of a client device, cause the processing device to:

• determine a first set of document identifiers (IDs) for a first set of documents of the corpus of documents, the first set of documents identified responsive to a search query;
• obtain at least one shingle corresponding to the first set of document IDs;
• identify a second set of document IDs corresponding to the obtained at least one shingle;
• group the second set of document IDs in a grouping data structure based on document IDs;
• determine resulting document IDs from the grouping data structure, wherein each resulting document ID from the resulting document IDs is determined based on a threshold number of occurrences;
• and
• associate resulting documents of the first set of documents that correspond to the resulting document IDs with one another in search results generated responsive to the search query to create a final search result to send to a user.