Chicago Mercantile Exchange Inc.

Paul Meacham

Jacques Doornebos

James P Moran

Jacob Doornebos

Raymond V Menghi

Eric S Wolff

An item is determined to exist in a dataset by arranging the dataset into a plurality of subsets, each bounded by the minimum amount of memory that may be transferred between levels of memory in a memory configuration. The item and the subsets have attributes that allow for a determination of which subset the item would exist in if the item were in the dataset. A singular subset is transferred between levels of memory to determine whether the item exists in the transferred subset. If the item does not exist in the transferred subset, it is determined that the item does not exist in the dataset.

Dataset intersection determination

Systems, methods and user interfaces that allow rapid storage and retrieval of trading data are provided. Trading data records are arranged as a non-indexed collection of data records. The physical location of trading data records stored in a computer-readable medium corresponds to the order that queries are performed. Queries may be performed by analyzing attributes of all of the trading data records, without speed limitations associated with indexed databases.

Non-indexed in-memory data storage and retrieval

A data collection application includes a collection document having a first code portion configured to format the document, at least one information input configured to receive an input wherein the at least one information input is defined by the first code portion, and a second code portion stored within the collection document and configured to include the information provided via the at least one information input. The data collection document further includes an archival routine configured to create a second collection document based on the second code portion and the information provided via the at least one information input.

Growing community of inventors

Tinley Park, IL, United States of America

Paul Meacham