Alexandrescu
Petre Alexandrescu, Bucuresti Sec RO
Patent application number | Description | Published |
---|---|---|
20130024353 | INTERVAL PRICE LIMIT - Systems and methods of limiting price movement of a financial instrument include establishing, via an exchange server comprising at least one matching engine module, an interval price limit (IPL) period that defines a predetermined length of time commencing at a start time, and an IPL amount that defines a permissible increase or decrease in an anchor price of a financial instrument during the IPL period. Buy and sell orders received for the financial instrument during the IPL period are matched to generate at least one matched trade having a trade price. The trade price is compared to the anchor price, and if the trade price is within the IPL amount of the anchor price, the matching engine module executes the at least one matched trade. Otherwise, if it is not, the matching engine module is prevented from executing the matched trade. | 01-24-2013 |
Tudor A. Alexandrescu US
Patent application number | Description | Published |
---|---|---|
20120278166 | Cognitive Relevance Targeting in a Social Networking System - A social networking system infers a user's present interests based on the user's recent actions and/or the recent actions of the user's connections in the social networking system. The social networking system also determines a set of concepts associated with each of a set of information items, such as advertisements. By matching the user's present interests with the concepts associated with the information items, the social networking system selects one or more of the information items that are likely to be of present interest to the user. The social networking system then presents the selected information items for display to the user, thereby providing information based on an inferred temporal relevance of that information to the user. | 11-01-2012 |
Tudor Andrei Alexandrescu, Houston, TX US
Patent application number | Description | Published |
---|---|---|
20130124447 | COGNITIVE RELEVANCE TARGETING IN A SOCIAL NETWORKING SYSTEM USING CONCEPTS INFERRED FROM EXPLICIT INFORMATION - A social networking system infers a user's present interests based on the user's recent actions and/or the recent actions of the user's connections in the social networking system. The social networking system also determines a set of concepts associated with each of a set of information items, such as advertisements. By matching the user's present interests with the concepts associated with the information items, the social networking system selects one or more of the information items that are likely to be of present interest to the user. At least one of the matched interests and concepts are not identical. The social networking system then presents the selected information items for display to the user, thereby providing information based on an inferred temporal relevance of that information to the user. | 05-16-2013 |
20140279722 | METHODS AND SYSTEMS FOR INFERRING USER ATTRIBUTES IN A SOCIAL NETWORKING SYSTEM - A method and system for inferring user attributes in a social networking system. The method includes maintaining a social graph comprising a plurality of nodes and a plurality of edges between the nodes. An unknown, incomplete, or inaccurate user attribute for a user is identified, and a plurality of probability lists are generated using a corresponding plurality of probability algorithms that utilize known user attributes and the social graph. The probability lists include a set of probability entries, each including a prediction we value for the unknown, incomplete, or inaccurate user attribute and a confidence score. Using the probability lists and a plurality of weights corresponding to the probability algorithms, an inferred user attribute value is generated and stored. The weights may be adjusted based upon learning the correct value of the unknown, incomplete, or inaccurate user attribute, and search results may be modified to include the user for search queries seeking information about the inferred user attribute. | 09-18-2014 |
Tudor Andrei Cristian Alexandrescu, Houston, TX US
Patent application number | Description | Published |
---|---|---|
20140046959 | Labeling Samples in a Similarity Graph - Particular embodiments of a social-networking system maintain one or more data stores storing a social graph comprising user nodes, concept nodes, and edges connecting the nodes. Particular embodiments may determine a confidence score with respect to a user node and a concept node, wherein the confidence score is based at least in part on affinity scores associated with the edges along a sequence of nodes between the user node and the concept node in the social graph. The confidence score may be based on an overall probability that a random walk starting at the user node will end at the concept node. This overall probability may be determined by calculating, for each edge in the random walk, the probability of taking that edge during the random walk, based on the affinity score associated with that edge. | 02-13-2014 |
Vlad Alexandrescu, New Haven, CT US
Patent application number | Description | Published |
---|---|---|
20160017879 | TRIPLE ACTION AIR PUMP - A triple action air pump includes a manual pump mechanism and an electrical pump mechanism. The mechanical pump mechanism has a piston mounted within a cylindrical housing, a shaft having a first end coupled to the piston and a second end that passes out of the cylindrical housing via an aperture in an end of the cylindrical housing, and a handle coupled to the second end of the shaft. The mechanical pump mechanism operates on both upstrokes and down-strokes of the handle. In one embodiment, the cylindrical housing has a single inner chamber and the electrical pump mechanism is mounted within the same chamber as the piston. In a second embodiment, the cylindrical housing has two separate inner chambers, with the mechanical pump mechanism mounted within one chamber and the electrical pump mechanism mounted within the other chamber. | 01-21-2016 |