Abstract: The present disclosure relates to systems and methods for determining points of interest. The methods may include obtaining a target address query associated with a service request from a user terminal; determining a plurality of initial terms based on the target address query; determining a plurality of term weights based on the plurality of initial terms, respectively; determining one or more candidate points of interest (POIs) based on the plurality of term weights according to an iterative process; determining one or more target POIs based on the one or more candidate POIs; and transmitting the one or more target POIs to the user terminal.

Abstract: A method for forming a chip package structure is provided. The method includes providing a wiring substrate. The method includes sequentially forming a nickel-containing layer and a gold-containing layer over the first pad. The method includes forming a conductive protection layer covering the gold-containing layer over the nickel-containing layer. The method includes bonding a chip to the wiring substrate through a conductive bump and a flux layer surrounding the conductive bump. The conductive bump is between the second pad and the chip. The method includes removing the flux layer while the conductive protection layer covers the nickel-containing layer.

Abstract: The present disclosure relates to systems and methods for determining at least one recommended search strategy for a user query. The method may include receiving the user query including at least one first segment from a terminal device; obtaining a plurality of search strategies matching the user query, each search strategy including at least one second segment; obtaining a text similarity determination model adapted to incorporate an attention mechanism; for each of the plurality of search strategies, determining a similarity score between a first vector representing the user query and a second vector representing the search strategy based on the text similarity determination model, at least one of the first vector or the second vector being associated with an attention weight of each corresponding segment; and determining the at least one recommended search strategy based on the similarity scores among the plurality of search strategies.

Abstract: Embodiments of the present disclosure provide a method and device for deduplication. Specifically, the method may comprise obtaining a property of a file stream, the property of a file stream including a file type or a magic number identifying a format of a protocol or a file. The method further includes in response to receiving an I/O request for a data block of the file stream, assigning a deduplication level to the I/O request based on the property of the file stream. Moreover, the method further includes deduplicating the data block of the file stream based on the deduplication level assigned to the I/O request. In addition, a corresponding device and computer program product are provided.

Abstract: A semiconductor device includes a transistor. The transistor includes an active region in a substrate, a patterned conductive layer being a portion of an interconnection layer for routing, and an insulating layer extending over the substrate and configured to insulate the active region from the patterned conductive layer. The patterned conductive layer and the insulating layer serve as a gate of the transistor.

Abstract: A method for online to offline services is provided. The method may include one or more of the following operations. A transportation service request may be received. The transportation service request may include a target address query from a user terminal. Whether the target address query is directed to a target area of interest (AOI) may be determined. At least one target point of interest (POI) and a target semantic description associated with the target AOI may be obtained from an AOI database. The at least one target POI and the target semantic description may be sent to the user terminal.

Abstract: A method may include determining that a service requester intends to request a service from a first location at a first time point. The method may include obtaining historical orders requested by the service requester in a first time period prior to the first time point. The method may include determining one or more candidate destinations based on the historical orders. The method may include, for each of the one or more candidate destinations, selecting at least one historical order based on the first time point. The method may include determining a probability associated with the each of the one or more candidate destinations based on a number of the selected at least one historical order and a number of historical orders associated with the each of the one or more candidate destinations. The method may include determining a destination based on the one or more probabilities.

Abstract: The present disclosure relates to systems and methods for determining target search results associated with a target query. The method may include obtaining a transportation service request including a target address query from a user terminal, and determining a plurality of candidate points of interest (POIs) associated with the target address query. The method may also include identifying one or more target POIs based on the candidate POIs by using a trained identification model. The trained identification model may be configured to provide a correlation probability for each of the one or more target POIs with the target address query. The method may further include ranking some or all of the one or more target POIs to produce a ranking result based on the correlation probabilities, and transmitting the ranking result to the user terminal.

Abstract: The present disclosure relates to a system, method and non-transitory computer readable medium. The system includes at least one computer-readable storage medium including a set of instructions and at least one processor in communication with the at least one computer-readable storage medium. When executing the set of instructions, the at least one processor is directed to: receive a triggering event in the absence of input from a user terminal associated with a user; obtain one or more candidate destinations based on the triggering event; obtain a trained ranking model; determine a ranking result of the one or more candidate destinations based on the trained ranking model; and transmit the ranking result to the user terminal in response to the triggering event.

Abstract: Methods and systems for generating a trained destination prediction model are provided. The method may include obtaining a plurality of historical orders corresponding to a plurality of users and determining a plurality of first features and a plurality of second features associated with the plurality of historical orders. The method may further include determining a plurality of transformed features based on the plurality of first features and a plurality of sets of cross features by correlating the plurality of second features. The method may further include obtaining a preliminary destination prediction model and training the preliminary destination prediction model to obtain a trained destination prediction model based on the plurality of transformed features and the plurality of sets of cross features.

Abstract: A method includes forming an isolation region extending into a semiconductor substrate, etching a top portion of the isolation region to form a recess in the isolation region, and forming a gate stack extending into the recess and overlapping a lower portion of the isolation region. A source region and a drain region are formed on opposite sides of the gate stack. The gate stack, the source region, and the drain region are parts of a Metal-Oxide-Semiconductor (MOS) device.

Abstract: Techniques for metadata maintenance involve: obtaining a transaction that is currently pending, the transaction being associated with a modification of a metadata block, the metadata block containing entries, the transaction including sub-transactions which indicate modifications; ordering the sub-transactions depending on record writing type, e.g., permission-required control type or a permission-free control type; in response to acquiring a permission, generating, in a first storage area, a respective metadata modification record preferentially for each sub-transaction of the permission-required control type, wherein the respective metadata modification record describes a modification of at least one entry of the metadata block that is indicated by the sub-transaction; and in response to generating the metadata modification records for all the sub-transactions of the permission-required control type, releasing the permission such that a further transaction will have an opportunity to acquire the permission.

Abstract: A method for improving user experience for an on-line platform may include obtaining a user input of a user of the on-line platform. The method may also include obtaining a plurality of candidate terms of interest (TOIs) that are selected by the user based on historical inputs relating to the user input. Each of the plurality of candidate TOIs may belong to a candidate category. The method may also include determining a target category for the user input based on the candidate categories and the plurality of candidate TOIs. The method may also include determining one or more target TOIs based on the target category and the plurality of candidate TOIs. The method may also include transmitting the one or more target TOIs to a terminal associated with the user.

Abstract: A semiconductor structure is disclosed. The semiconductor structure includes: a substrate of a first conductivity; a first region of the first conductivity formed in the substrate; a second region of the first conductivity formed in the first region, wherein the second region has a higher doping density than the first region; a source region of a second conductivity formed in the second region; a drain region of the second conductivity formed in the substrate; a pickup region of the first conductivity formed in the second region and adjacent to the source region; and a resist protective oxide (RPO) layer formed on a top surface of the second region. An associated fabricating method is also disclosed.

Abstract: Embodiments of the present disclosure provide a method and device for deduplication. Specifically, the method may comprise obtaining a property of a file stream, the property of a file stream including a file type or a magic number identifying a format of a protocol or a file. The method further includes in response to receiving an I/O request for a data block of the file stream, assigning a deduplication level to the I/O request based on the property of the file stream. Moreover, the method further includes deduplicating the data block of the file stream based on the deduplication level assigned to the I/O request. In addition, a corresponding device and computer program product are provided.

Abstract: The present disclosure relates to an integrated circuit (IC) and a method of formation. In some embodiments, a low voltage region and a high voltage region are integrated in a substrate. A low voltage transistor device is disposed in the low voltage region and comprises a low voltage gate electrode and a low voltage gate dielectric separating the low voltage gate electrode from the substrate. A first interlayer dielectric layer is disposed over the substrate surrounding the low voltage gate electrode and the low voltage gate dielectric. A high voltage transistor device is disposed in the high voltage region and comprises a high voltage gate electrode disposed on the first interlayer dielectric layer.

Abstract: A method for generating a road map for vehicle navigation comprises: receiving an original road map having a crossroad junction, an inward lane entering the crossroad junction, and an outward lane leaving the crossroad junction; generating a reference path capable of guiding a vehicle driving from the inward lane to the outward lane through the crossroad junction; generating a polygonal hub that encompasses the crossroad junction, wherein the reference path enters and leaves the hub by crossing a first binder and a second binder, respectively; and generating automatically a type of the reference path based on the geometrical relationship between the first binder and the second binder.

Abstract: Some embodiments relate to an integrated circuit (IC) that includes a semiconductor substrate. A shallow trench isolation region downwardly extends into the frontside of the semiconductor substrate and is filled with dielectric material. A first capacitor plate and a second capacitor plate are disposed in the shallow trench isolation region. The first capacitor plate and the second capacitor plate have first and second sidewall structures, respectively, that are substantially parallel to one another and that are separated from one another by the dielectric material of the shallow trench isolation region.

Abstract: A semiconductor structure is disclosed. The semiconductor structure includes: a substrate of a first conductivity; a first region of the first conductivity formed in the substrate; a second region of the first conductivity formed in the first region, wherein the second region has a higher doping density than the first region; a source region of a second conductivity formed in the second region; a drain region of the second conductivity formed in the substrate; a pickup region of the first conductivity formed in the second region and adjacent to the source region; and a resist protective oxide (RPO) layer formed on a top surface of the second region. An associated fabricating method is also disclosed.

Abstract: In some embodiments, a bipolar junction transistor (BJT) is provided. The BJT may include a collector region that is disposed within a semiconductor substrate. A base region that is disposed within the semiconductor substrate and arranged within the collector region. An emitter region that is disposed within the semiconductor substrate and arranged within the base region. A pre-metal dielectric layer that is disposed over an upper surface of the semiconductor substrate and that separates the upper surface of the semiconductor substrate from a lowermost metal interconnect layer. A first plurality of dishing prevention columns that are arranged over the emitter region and within the pre-metal dielectric layer, where the plurality of dishing prevention columns each include a dummy gate that is conductive and electrically floating.