67results about How to "Improve distribution performance" patented technology

The acceleration of peer-to-peer downloads of content files using auxiliary resources in combination with peer-to-peer content distribution. A further feature relates to the use of enhanced message scheme for communications between the tracker and peers. One embodiment is a swarm having at least one seed capable of at least initially storing the content files with at least one tracker maintaining a list of peers wherein the tracker uses at least one peer selection algorithm to generate a selective peer-list and provides a selective peer-list to the peers.

A distribution tray for distribution of vapor and liquid across a vessel has a plurality of downcomers extending above the tray and having open upper and lower ends. A liquid conduit for each downcomer has an inlet, a section for upward liquid flow, and openings in fluid communication with the downcomer. A reduced flow area section and a device for improved liquid spread may be used at the outlet of the downcomer. During operation, vapor enters the upper downcomer end. Liquid collected on the tray flows through the inlet, upward through the conduit, and through the openings into the downcomer, where the liquid is mixed with downwardly-flowing vapor. The two-phase stream passes the reduced flow area section with increased velocity for improved dispersion of the liquid before the stream flows through the device for improved liquid spread, and then exits through the lower end of the downcomer.

A light emitting diode having an AlInGaP active layer and a method of fabricating the same are disclosed. The light emitting diode includes a substrate. A plurality of light emitting cells are positioned to be spaced apart from one another, wherein each of the light emitting cells has a first conductive-type lower semiconductor layer, an AlInGaP active layer and a second conductive-type upper semiconductor layer. Meanwhile, a semi-insulating layer is interposed between the substrate and the light emitting cells. Further, wires connect the plurality of light emitting cells in series. Accordingly, it is possible to provide a light emitting diode, in which a plurality of light emitting cells are connected in series to one another through wires to be driven by an AC power source.

The embodiment of the invention provides a content recommendation method and device. The method comprises the steps that recent behaviors of users to be recommended, long-term interests of the users to be recommended in portraits of the users to be recommended and user characteristics of the users to be recommended are combined to serve as input of a trained interest representation model, and vector embedding representation of overall interests of the users to be recommended is output through the trained interest representation model. Because the long-term interest is the interest in the historical time period and the recent behavior is the recent behavior before the current time, the long-term interest is more stable than the recent behavior, and the recent behavior becomes a part of thelong-term interest along with the advancement of time. Therefore, the recent behaviors of the to-be-recommended users, the long-term interests of the to-be-recommended users in the to-be-recommended user portraits and the user characteristics of the to-be-recommended users are considered to be combined, the interests of the users can be described more accurately and comprehensively, and then interested contents are recommended to the to-be-recommended users based on the vector embedding representation of the whole to-be-recommended users.

The invention provided an electronic certificate acquiring method for enabling an intelligent terminal to acquire an electronic certificate from an advertisement player. The method comprises the following steps: a wireless connection request is initiated to the advertiser player; user identity information of the intelligent terminal is sent to the advertiser player; to-be-selected electronic certificates are received from the advertiser player and used for browse and selection by a user; and further, electronic certificates selected by the user are acquired, and are converted into a document for storage. According to the method, the electronic certificates on the advertiser player are transmitted to the intelligent terminal in a wireless data transmission manner, and the user of the intelligent terminal can enjoy favorable price at corresponding retailers by virtue of the electronic certificates obtained from the advertiser player. Therefore, not only the labor cost for dispensing the electronic certificates is saved, but also release and acquisition of the targeted electronic certificates are provided. The invention further provides an electronic certificate dispensing method, the intelligent terminal adopting the electronic certificate acquiring method, and the advertiser player adopting the electronic certificate dispensing method.

The present invention provides a collaborative data distribution method in an open-space converged communication network. The method comprises the steps of: optimization problem modeling of collaborative data distribution in an open-space converged communication network architecture; optimization problem analysis and derivation; optimization of the coordination mechanism of ground communication and communication of an unmanned aerial vehicle; optimization of the frequency spectrum resource distribution and the flight state of the unmanned aerial vehicle; and collaborative data distribution optimization. The collaborative data distribution method cooperates with the ground wireless communication network and the unmanned aerial vehicle communication network, optimizes the frequency spectrumresource distribution and the flight state of the unmanned aerial vehicle, achieves obvious improvement of the performances of data distribution and efficient utilization of the frequency spectrum resource and energy-saving flight of the unmanned aerial vehicle.

The invention discloses an adaptive service data distribution method in the IOV (Internet of Vehicles) environment based on opportunistic communication. The method comprises the steps: enabling adjacent vehicles or RSU to receive a Beacon message, judging the validity of the message, calculating an expected forwarding time delay if a forwarding condition is met, adding the expected forwarding time delay to a field, returning to RREP, enabling a vehicle or RSU at a former jump to execute the RREP response processing process after receiving the RREPs of the adjacent objects, returning an RREQ to an optimal next jump selected from a candidate object set, enabling a candidate object to judge whether all data packages arrive at a target position or not after the candidate receives the RREQ, enabling a forwarding vehicle or RSU to restart the new broadcast if not all data packages arrive at the target position till all data packages arrive at the target vehicle. The method achieves the effective distribution of service data in the IOV environment, improves the packet loss probability under the condition that other indexes and performances are guaranteed to be lossless, reduces the number of retransmission times, and reduces the time delay and the network expenditure.

The present invention discloses a broadcast and storage network-based fog computing architecture content cooperative distribution method and application system. According to the broadcast and storagenetwork-based fog computing architecture content cooperative distribution method and application system of the invention, a broadcast and storage network is utilized to enhance the content active pushcapability of a traditional fog computing architecture and reduce the consumption of internet bandwidth by the traditional fog computing architecture; on the basis of the centralized control idea ofthe software-defined network (SDN), a multi-granularity cooperative storage mechanism which considers both broadcast content and Web cache content is put forward; on the basis of the multi-granularitycooperative storage mechanism, all nodes in a domain are centrally maintained and controlled through a controller, and an efficient content forwarding strategy is formulated for a fog server in the domain; and the content cooperative distribution of the nodes in the domain is realized through the controller. With the broadcast and storage network-based fog computing architecture content cooperative distribution method and application system of the invention adopted, the content active push capability of the fog computing architecture can be effectively enhanced, user request delay can be reduced, and user experience can be improved.

The invention discloses a parallel multicasting network file system for improving performance of a network memory system. A standard network file system is used as a base, a parallel expansion part is used for eliminating performance bottleneck of a standard network file system, and a multicasting expansion part is used for eliminating the I/O (Input/Output) performance bottleneck of a memory disk; separated transportation channels are used for control data and file data to allow the data to be transmitted into a plurality of servers in parallel by a plurality of clients; streaming media dataflows of a plurality of services are combined by multicasting to integrate and reduce I/O calls so as to eliminate the I/O performance bottleneck of the memory disk; the reliability of the multicasting is improved by using a forward correction mechanism; recording a checking value is recorded into the disc for storage after being calculated so as to realize the integration of file storage and transmission error correction; and the memory management of sequential writing and multicasting is provided by the buffer zone management and the disc I/O dispatch. The parallel multicasting network filesystem has the advantage that a parallel multicasting technology is introduced based on the current network file system to improve the distribution performance of the multimedia content.

The invention provides a communication cluster method and device for MMTel (MultiMedia Telephony) applied to a WebRTC (Web Real-Time Communication) system. The method comprises the following steps of sending a request for distributing servers to LBs (Load Balancer); receiving response messages which are returned for the request from the LBs, wherein the response messages carry IP (Internet Protocol) addresses of the servers distributed by the LBs, and recording the IP addresses of the servers, which are carried in the response messages; and connecting to the corresponding server according to the recorded IP addresses of the servers and initiating a business request. According to the method, the excessive reliance on the LB can be effectively avoided, the condition that a client web app cannot work after the LB has a fault is avoided, so that the LB is no longer a system bottleneck, and meanwhile, the distribution capacity of load balancing is improved.

The invention provides an optimal buffer resource allocation method based on yoke theory in a wireless content distribution network. First, a relationship between a backlog length, a buffer capacity,a data arrival rate, and a service rate in a buffer is determined. A buffer overflow probability expression is determined by applying a martingale theory. The maximum buffer overflow probability tolerable by each service user is given, and the minimum buffer capacity required by each service user is determined. According to the relation between the buffer capacity contributed by the intermediate node and the minimum buffer capacity required by the user who serves the intermediate node, the connection relation between the user and the edge equipment is determined, so that the optimization problem of minimizing the buffer overflow probability sum is constructed, and an optimal buffer resource allocation scheme is determined by using a water injection method. The probability of buffer overflow of the intermediate node is reduced, the content distribution efficiency is improved, and the distribution performance of the wireless content distribution network is further improved.

The invention provides an encounter probability-based adaptive opportunistic forwarding method applied in a vehicular Ad Hoc network. The method comprises the steps that any one vehicle is selected from the vehicular network to serve as a request vehicle node, and the request vehicle node is set to generate a message and need to forward the message to a destination node; if an encounter probability prediction value of a candidate forwarding node and the destination node is greater than that of the request vehicle node and the destination node, the step 3 is executed; the encounter lasting timeof the request vehicle node and the candidate forwarding node is predicted, and if the encounter lasting time of the request vehicle node and the candidate forwarding node is longer than a thresholdTmin, the request vehicle node forwards the message to the candidate forwarding node; if the message forwarding time is longer than a preset updating cycle, the message is forwarded to a roadside unitand then forwarded to a vehicle node passing through the roadside unit by the roadside unit; and if the message forwarding time T is longer than an updating cycle, the request vehicle node continuesto move.

A heat exchanger includes a plurality of heat transfer tubes, a first header, a second header, and a plurality of fins. The heat exchanger constitutes a portion of a refrigeration cycle circuit in which refrigerant circulates. The second header includes a header pipe. The header pipe has an entrance portion. A bypass pipe is disposed between the entrance portion and the first header and configured to bypass refrigerant. The bypass pipe protrudes into the header pipe to be connected to the header pipe. The bypass pipe is provided with a flow control mechanism configured to control a flow rate of refrigerant.

The invention discloses an LLO-based single-wavelength quantum and classic communication simultaneous transmission method. A multi-user Alice terminal, a multiplexing module and a multi-user Bob terminal are included, and the multi-user Alice terminal, the multiplexing module and the multi-user Bob terminal are connected in sequence through optical fibers. Quantum signals and classic signals are coded on the same weak coherent pulse by adopting a single-wavelength multiplexing method, so that additional requirements of QKD for hardware equipment are reduced, and the practicability of the QKD technology is improved. The LLO scheme is adopted to close security vulnerabilities brought by an eavesdropper by manipulating the LO on the common channel, and the LLO is realized by adopting the unbalanced delay line interferometer, so that the system can tolerate stronger phase noise. Wavelength division multiplexing is combined with single-wavelength multiplexing, the system capacity of the system is further improved, and a realistic way is opened up for developing a coherent quantum and classical fusion system compatible with a next-generation network.

The invention relates to a live broadcast distribution method and device, a server and a medium, applied to the technical field of computers, and the method comprises the steps: receiving a live broadcast starting request which carries a live broadcast type and a live broadcast account of a to-be-started live broadcast; if the live broadcast type is the target live broadcast type, obtaining a distribution adjustment parameter of the live broadcast account, determining the distribution adjustment parameter through the difference between live broadcast feedback values of first historical live broadcast of the target live broadcast type of the live broadcast account and second historical live broadcast of other live broadcast types, and the live broadcast feedback values of the historical live broadcast represent the interaction situation of the historical live broadcast; obtaining a reference distribution parameter of live broadcast; and adjusting the reference distribution parameter according to the distribution adjustment parameter, and distributing the live broadcast based on the adjusted distribution parameter. According to the invention, the live broadcast interaction conditionof the target live broadcast type is considered, and the distribution of the live broadcast of the target live broadcast type is adjusted according to the feedback of the live broadcast interaction condition, thereby improving the distribution effect.

The embodiment of the invention discloses a content distribution method and device and a storage medium, and the method comprises the steps: obtaining to-be-distributed target content uploaded by a first user; performing feature extraction on the target content to obtain content feature information corresponding to the target content, generating context association information according to the content feature information, and predicting a target title corresponding to the target content according to the context association information and the target content; and determining a recommendation weight of the target content according to the target title, and distributing the target content to the second user based on the recommendation weight. The scheme of the invention relates to the field ofnatural language processing of artificial intelligence, and the attractive target title is generated based on the processing of the target content, so that the content distribution effect can be improved.

The invention discloses a drift bottle processing method for an electronic book application and electronic equipment, and the method comprises the steps: judging whether a current reading page of an electronic book belongs to a to-be-displayed page of a drift bottle or not; if yes, presenting a drift bottle display component in a preset area of the current reading page; in response to a trigger operation of the user on the drift bottle display component, presenting a drift bottle information display page, wherein the drift bottle information display page comprises a social interaction component for establishing a social relationship with the drift bottle creation user. By means of the mode, distribution of the user original content based on the drift bottle in the reading scene is achieved, and the distribution effect of the user original content can be improved; by setting the social interaction component used for establishing the social relationship with the drift bottle creation user in the drift bottle information display page, drift bottle-based user social contact in a reading scene is realized.

The invention relates to a video stream distributing method and relates to streaming media transmission. The video stream distributing method which is high in distributing performance and balanced in load is characterized in that the method comprises data source threads and distributing threads, one data source thread corresponds to N distributing threads, and one distributing thread corresponds to one data source thread. The video stream distributing method has the advantages that streaming media distributing performance is increased effectively under the same hardware condition, more requesters are supported, the display instantaneity of a requesting end can be well increased, existing hardware resources are fully utilized, and load balance is achieved.

The invention discloses a multi-channel distribution system and method of a popular science resource. The system comprises a bottom popular science resource management module, which is used for adding, deleting and modifying data tables of resources from different sources in heterogeneous databases to ensure the updating of requested resources; a popular science resource database comprising a plurality of databases for storing different popular science resource data; a logical distribution process layer used for establishing a data distribution middleware, receiving different data requests ofa plurality of terminal, requesting distribution of unified resource data to that plurality of terminals, and uniformly distributing data in the unified resource database to the different terminals; apush terminal which includes a plurality of terminals for requesting different data, and sends the different data requests to a logical distribution processing module. The invention solves the problem that a plurality of heterogeneous data encountered in the traditional scheme cannot be distributed and shared to a plurality of terminals, and the unified data middleware compiled according to different data updating modes greatly simplifies the request flow and improves the system distribution performance.