Abstract: Scalable architectures, systems, and services are provided herein for creating manifest-based snapshots in distributed computing environments. In some embodiments, responsive to receiving a request to create a snapshot of a data object, a master node identifies multiple slave nodes on which a data object is stored in the cloud-computing platform and creates a snapshot manifest representing the snapshot of the data object. The snapshot manifest comprises a file including a listing of multiple file names in the snapshot manifest and reference information for locating the multiple files in the distributed database system. The snapshot can be created without disrupting I/O operations, e.g., in an online mode by various region servers as directed by the master node. Additionally, a log roll approach to creating the snapshot is also disclosed in which log files are marked. The replaying of log entries can reduce the probability of causal consistency in the snapshot.

Abstract: A system that implements a data storage service may store data for a database table in multiple replicated partitions on respective storage nodes. In response to a request to back up a table, the service may back up individual partitions of the table to a remote storage system independently and (in some cases) in parallel, and may update (or create) and store metadata about the table and its partitions on storage nodes of the data storage service and/or in the remote storage system. Backing up each partition may include exporting it from the database in which the table is stored, packaging and compressing the exported partition for upload, and uploading the exported, packaged, and compressed partition to the remote storage system. The remote storage system may be a key-value durable storage system in which each backed-up partition is accessible using its partition identifier as the key.

Abstract: Systems and methods for a media guidance application that generates results in multiple languages for search queries. In particular, the media guidance application ranks search results according the language model associated with the search result.

Abstract: A database system may receive a query and form a plan for executing the query using a hypothetical index selected based on columns referenced by the query. The database system may compare the hypothetical index to indexes on the computing nodes of the database system. Based on the comparison, the database system may form a new index, based on the hypothetical index, on one of the computing nodes. An additional computing node may be added to the database system for the purpose of maintaining the new index. Subsequent queries having commonality with the first query may be processed on a node maintaining the first index.

Abstract: A shared storage architecture persistently stores database files in non-volatile random access memories (NVRAMs) of computing nodes of a multi-node DBMS. The computing nodes of the multi-node DBMS not only collectively store database data on NVRAMs of the computing nodes, but also host database server instances that process queries in parallel, host database sessions and database processes, and together manage access to a database stored on the NVRAMs of the computing nodes. To perform a data block read operation from persistent storage, a data block may be transferred directly over a network between NVRAM of a computing node that persistently stores the data block to a database buffer in non-volatile RAM of another computing node that requests the data block. The transfer is accomplished using remote direct memory access (“RDMA).

Abstract: Methods, non-transitory computer readable media, computing devices and systems for persistent indexing and space management for flat directory include creating, using at least one of said at least one processors, an index file to store mapping information, computing, using at least one of said at least one processor, a hash based on a lookup filename, searching, using at least one of said at least one processor, the index file to find all matching directory cookies based on the computed hash, selecting, using at least one of said at least one processor, the directory entity associated with the lookup filename from among the matched directory cookies, and returning, using at least one of said at least one processor, the determined directory entity.

Abstract: Users of a social networking system are assigned to households using prediction models that rely, in part, on user profile information and social graph data. Information about users may be received by a social networking system through various channels (e.g., declared/profile information, user history, IP addresses, Global Positioning System (GPS) data from check-in events and/or continuously provided by mobile devices, external household information, and/or social information). Scoring models may use statistical analysis of the received user information to predict household membership for users. User attributes, such as previous names, date of birth, social graph data, locations, life events, and check-ins, may be factors in generating confidence scores of predicted household memberships. Weighted scoring models may use machine learning methods for measuring the accuracy of the household membership prediction.

Abstract: An object of the present invention is to provide a method and apparatus for clearing data in a cloud storage system. The method according to the present invention comprises the following steps: deleting meta information of a data slice corresponding to the file upon detecting that a user is deleting a file; wherein the method comprises the following steps: exporting all data slices to be processed when data needs to be cleared; by traversing each file in the meta information, determining each data slice that may be accessed through the meta information and thereby obtaining corresponding access data information; based on the access data information, determining the data to be cleared in said all data slices to perform data clearing operation for the data to be cleared.

Abstract: User interactions with a database storage system allow creation of virtual databases based on point-in-time copies associated with a source database. Multiple point-in-time copies are obtained for each source database. A point-in-time copy retrieves data changed in the source database since the retrieval of a previous point-in-time copy. A virtual database (VDB) is created by creating a set of files in the data storage system and mounting the files on a database server allowing the database server to access the files. User interactions allow the user to specify the source database, a point in time associated with the source database and a destination server to create the virtual database. User input can specify other attributes associated with the virtual database including the file paths, database parameters etc. The user can specify schedules of various actions, including making and retention of point-in-time copies.

Abstract: Methods and apparatus related to adjusting the ranking of a suggestion for a geographic location based on determining how many of one or more users visited the geographic location after receiving the suggestion. In some implementations the one or more users may belong to first grouping of users and the ranking may be adjusted only for suggestions to the first grouping of users. In some implementations it may be determined if a second grouping of users visited the geographic location after receiving the suggestion. In some implementations a property of the given geographic location may be determined based on a comparison of how many of the second grouping of users visited the given geographic location after receiving the suggestion and how many of the one or more users visited the given geographic location after receiving the suggestion.

Abstract: A method of providing a level of certification of an attribute of an item is disclosed. A requirement is determined for a level of certification for an attribute of an item. A notification is provided of an evidence item that is to be submitted to evaluate the level of certification of the attribute of the item. The evidence item is received. The level of certification of the attribute of the item is determined based on the received evidence item.

Abstract: Disclosed herein is a system and method for interoperability of blockchains thereby allowing use of smart contracts across blockchains in real time and in a secured manner. A plurality of blockchains are connected to each other and allow use of smart contracts written on them by other connected blockchains without the need of rewriting and/or downloading the smart contract on other blockchain. The disclosed system and methods use a distributed file system storage for secured processing of information flowing from one blockchain to other connected blockchain. Further, each connected blockchain is associated with distinct private and public key in order to encrypt and decrypt the data flowing across blockchains.

Abstract: The system tokenizes values stored by records' fields, creates trie from tokenized values, each branch labeled with tokenized value, each node storing count indicating number of records associated with tokenized value sequence beginning from trie root. The system tokenizes value stored by record field, identifies nodes, beginning from trie root, corresponding to token value sequence associated with tokenized value, until node is identified that stores count that is less than node threshold. The system identifies branch sequence comprising each identified node as record's key, and associates key with node storing count less than node threshold, and record with key. The system tokenizes prospective value stored by prospective record's field, identifies nodes, beginning from trie root, corresponding to another token value sequence associated with tokenized prospective value, until another node is identified that stores another count that is less than node threshold.

Abstract: The disclosure relates to personalizing search results based on the device features of a user device. An example method for personalizing search results includes receiving an encoded device profile indicating the device features of the device. The device features indicate one or more native applications installed on the device. The device features may further indicate native applications recently executed by the device, native applications that have been deleted from the user device, and/or web applications recently accessed by the user device. The method further includes identifying the device features of the device based on the encoded device profile, receiving a search query from the device, and performing an application search based on the search query to identify a consideration set of records. The method further includes adjusting the consideration set based on the device features and generating search results based on the adjusted consideration set.

Abstract: A system, medium, and method to define a database table and view based on a database model using a database language statement, the database language statement including a statement to create the table and a forward-declared JOIN statement that names the table and view, respectively and includes information regarding a relationship between at least two entities of the database.

Abstract: The present disclosure relates to systems and methods for facilitating trusted handling of genomic bioinformatics, and/or other sensitive information. Certain embodiments may facilitate policy-based governance of access to and/or use of information through enforced disclosure accounting processes. Among other things, embodiments of the disclosed systems and methods may mitigate the potential for various attacks, including reidentification attacks targeting particular individuals associated with information included in a genomic data set.

Abstract: The present systems and methods relate to a concept for providing recommendations targeted to particular, “subject” user. The present systems and methods involve obtaining historical usage data associated with the subject user; identifying candidate users; calculating media preference overlap scores with respect to the subject user and each candidate user; ranking the candidate user according to their preference overlap scores, and generating recommendations for the subject user from the historical usage data associated with the candidate users.

Abstract: A technique for running queries is provided that includes a method and system for managing unstructured data and for capturing uncertain relationships between pieces of data. A structural schema is generated from unstructured data that is configured to evolve in response to user input and incoming data that is changing over the course of an application. The schema is also configured to capture relationships between data that are uncertain or difficult for a person to capture in a consistent or comprehensive manner. The technique is especially advantageous for running and returning meaningful responses to queries that require an ability to connect pieces of data received from unstructured data or disparate sources, including user input, or where the query is directed to information that is uncertain or was not anticipated as useful or relevant at the time the data containing the information was originally received.

Abstract: A method of multithreading extraction of data from a database is provided. The method comprises: acquiring a set of primary key character strings, the primary key character strings being uniquely associated with the data to be extracted from the database; extracting, from the primary key character strings, a first character string and a second character string; generating a first integer and a second integer based on: a preset base number, positions of characters included in the first and second character strings; determining a node segment based on the first and second integers, the node segment being associated with a node segment integer; converting the node segment integer to a node segment character; and generating an extraction statement associated with a thread for the node segment character converted from the node segment integer. The extraction statement can then be transmitted to a database when the thread is executed.

Abstract: A system and method for processing raw transaction records received from multiple data sources. The system and method receive multiple raw transaction records from multiple data sources. Transaction pair records are generated from the raw transaction records. Location and entity fields including raw information are identified from the transaction pair records. The raw location and entity information is resolved to generate resolved location and entity information capable of aggregation and further processing, such as the deriving of analytics.