Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for processing encrypted and hashed versions of raw data. One of the methods includes receiving, by a system, a message that comprises an encrypted version of raw data and a hash of the raw data; determining, using the hash of the raw data, a first location in a hash map; inserting the encrypted version of the raw data to the first location in the hash map; determining to transmit, to another system, data for a second location in the hash map; selecting, using the second location, at least a subset of the data for the second location in the hash map; and transmitting, to the other system, the subset of the data for the second location in the hash map.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for using a preferred region that is query data dependent. One of the methods includes computing a preferred region for true query answers for a kernel differentially private mechanism using a noise value for a query for the kernel differentially private mechanism, a true query answer for a query for the kernel differentially private mechanism, and a relative error ratio for the preferred region; computing, for a kernel differentially private mechanism, a privacy parameter and a boosting rate that increases variance in outputs for the kernel differentially private mechanism using the preferred region; receiving, from a downstream system, a query for data from a dataset; generating a response to the query that includes noise data using the kernel differentially private mechanism that includes the privacy parameter; and transmitting, to the downstream system, the response to the query.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for determining whether to generate sub-domain noise. One of the methods includes, for a message for a downstream system, determining whether to generate noise data that has the same sub-domain as a true value, the true value from a domain that has a plurality of different sub-domains including the sub-domain; using a result of the determination whether to generate noise data that has the same sub-domain as the true value, generating the message for the downstream system; and transmitting, to the downstream system, the message.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for determining parameters using a preferred region. One of the methods includes computing, for a kernel differentially private mechanism, a privacy parameter and a boosting rate that increases variance in outputs for the kernel differentially private mechanism using a preferred region for true query answers for the kernel differentially private mechanism; maintaining a plurality of output data received from one or more client devices; receiving, from a downstream system, a query for data from a dataset; generating a response to the query that includes noise data using the kernel differentially private mechanism that includes the privacy parameter; and transmitting, to the downstream system, the response to the query.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for generating noise data using preferred region data. One of the methods includes computing a probability density function using a combination of a kernel differentially private mechanism, a probability function that an output from the kernel differentially private mechanism does not fall in a preferred region for true query answers for the kernel differentially private mechanism, and a boosting rate that increases variance in outputs for the kernel differentially private mechanism; computing, using the probability density function, a privacy parameter for generating noise data; receiving, from a downstream system, a query for data from a dataset; generating a response to the query that includes the noise data using the privacy parameter that was computed using the probability density function; and transmitting, to the downstream system, the response to the query.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for using a fixed preferred region. One of the methods includes maintaining an upper bound and a lower bound both for a preferred region for true query answers and noise data for a kernel differentially private mechanism; computing, for a kernel differentially private mechanism, a privacy parameter and a boosting rate that increases variance in outputs for the kernel differentially private mechanism using the upper bound and the lower bound; receiving, from a downstream system, a query for data from a dataset; generating a response to the query that includes noise data that is bounded by the upper bound and the lower bound for the preferred region using the kernel differentially private mechanism that includes privacy parameter that was computed using the boosting rate; and transmitting, to the downstream system, the response to the query.

Abstract: An electronic expansion valve and a refrigeration device are provided. The electronic expansion valve has a valve seat, a nut and a connection piece. The valve seat is provided with a valve cavity. One end of the nut is installed in the valve cavity. An outer wall of the nut is provided with an annular position part that extends from the outer wall. The position part is positioned to be in contact with a wall of the valve cavity. One end of the connection piece is fixedly connected to the nut. Another end of the connection piece is extended away from the nut and fixedly connected to an axial end surface of the valve seat.

Abstract: Provided are CD4-targeted IL-15 variant molecules and methods for use.

Abstract: Provided are a method and system for understanding a medical Chinese spoken language, an electronic device, and a storage medium, which relate to the field of semantic understanding technologies. The method includes: inputting a concatenated first vector determined based on the first weighted vector matrix and the medical identification vector semantic representation matrix to an intent recognition model to obtain an intent recognition prediction value; constructing a slot filling question sentence based on the intent recognition prediction value and inputting the slot filling question sentence into a second semantic vector determining model to obtain a slot filling vector semantic representation matrix, thereby determining a concatenated second vector; and inputting the concatenated second vector into a slot filling model to obtain a slot filling prediction value. This improves accuracy of understanding the medical Chinese spoken language.

Abstract: A zirconia blank produced by introducing a zirconia suspension into a porous mould and demoulding the blank formed as well as the use of the optionally presintered blank formed for the preparation of a dental restoration using a very short dense-sintering process.

Abstract: Methods and systems for evaluating privacy protection are provided. A method includes generating a first intersection of a first dataset and a second dataset. The method also includes determining a partition number based on the first dataset, the first intersection, and a number of iterations by: determining a privacy leakage for subsets of the first dataset based on the first dataset, the first intersection, and the number of iterations; and determining the partition number based on the privacy leakage for each of the subsets of the first dataset. The method further includes partitioning the first dataset into a first sub-dataset and a second sub-dataset using the partition number, and determining positive membership and negative membership for elements of the first sub-dataset in the second dataset and for elements of the second sub-dataset in the second dataset.

Abstract: A compressor and a refrigeration device are provided. The compressor has a crankshaft, a connecting structure, and an avoidance part arranged on the connecting structure and/or the crankshaft. The avoidance part is located at a position where the connecting structure is matched with the crankshaft. The avoidance part is configured to be suitable for avoiding at least one of the connecting structure and the crankshaft. A gap between the crankshaft and the connecting structure is increased through the arrangement of the avoidance part, so that the avoidance part can avoid the crankshaft when the crankshaft is obliquely deformed.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for reducing variance for target frequency ranges. One of the methods includes sending a request for data to each of a plurality of user devices; determining a target frequency range for the requested data; computing a value for an inclusion probability according to the target frequency range; providing the value for the inclusion probability to each of the plurality of user devices; receiving privatized messages from each of the plurality of user devices, each privatized message being generated according to the provided value for the inclusion probability; and analyzing the privatized data extracted from the received messages.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for processing encrypted and hashed versions of raw data. One of the methods includes receiving, by a system, a message that comprises an encrypted version of raw data and a hash of the raw data; determining, using the hash of the raw data, a first location in a hash map; inserting the encrypted version of the raw data to the first location in the hash map; determining to transmit, to another system, data for a second location in the hash map; selecting, using the second location, at least a subset of the data for the second location in the hash map; and transmitting, to the other system, the subset of the data for the second location in the hash map.

Abstract: Methods and systems for protecting membership privacy for secure computation and communication are provided. The method includes providing a first dataset, determining a number N based on a data privacy configuration, and generating a padding dataset having more than N elements. An intersection of the padding dataset and the first dataset is empty. The method also includes shuffling the padding dataset, up-sampling the first dataset with a first N elements of the shuffled padding dataset, and performing an intersection operation based on the up-sampled first dataset and a received dataset.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for differential privacy. One of the methods includes receiving a computation result responsive to a query applied to a dataset; applying a differential privacy mechanism to generate a first random noise value; determining whether the first random noise value exceeds an error threshold; in response to determining that the first random noise value exceeds the error threshold, determining whether to recycle the first noise value; in response to determining to recycle the first noise value, applying the differential privacy mechanism to generate a second random noise value; and determining whether the second random noise value exceeds the error threshold; in response to determining that the second random noise value does not exceed the error threshold, adding the second noise value to the computation result to generate a noisy result; and releasing the noisy result.

Abstract: The present invention provides an end-to-end solution for frontend page generation. The system includes a design module that enables a user to design UI components, an annotation submodule that enables a user to annotate the UI components with design element attributes, a database that stores database objects having database object attributes according to a data schema, a mapper module that enables a user to map design element attributes of the UI components to database object attributes without coding via a graphical user interface, a content management module that enables a user to add mapped UI components to a frontend page feed and to associate the mapped UI components with instances of the database objects, a feed generation module that retrieves instance-specific values for the database object attributes of mapped UI components in frontend page feeds, and a metadata bus that enables the modules and database to communicate.