145 results about "Burstiness" patented technology

Systems, methods and program codes are provided wherein an analyzer analyzes input from a terminal device; ascertains human-like behavior; and terminates an active session, generates a time-out warning, manipulates an idle session timer or presents a challenge in response to a humanness likelihood determination or to a challenge result. In one aspect a keystroke analyzer and a command sequence analyzer determine whether the terminal device input is likely from a human user or from an automaton. In another aspect a Completely Automated Public Turing Test to tell Computers and Humans Apart challenge is presented. Timing characteristics include maximum generation rate, burstiness, and keystroke sequence delays, and command characteristics include a no-action-required characteristic and a query characteristic. A command sequence analyzer may have an affinity for a command line interface. Weighting algorithms or artificial intelligence routines may be applied to humanness likelihood outputs.

In a data communication network operated under the TCP / IP suite of protocols the invention adds an adaptive streaming (AS) layer, inserted between the IP and the TCP protocol layers, in which the received data packets of each open TCP connection are temporarily queued and from where they are first reordered then, delivered to the TCP layer at a pace matching the optimal receiving rate of TCP connections. Thus, the invention adds a rate-based transmission mechanism to the TCP layer for the received data packets so as to better adapt to higher-speed communication lines and to reduce drastically the burstiness of the TCP flow control.

Methods, systems and devices for network congestion control exploit the inherent burstiness of network traffic, using a wave-based characterization of network traffic and corresponding multiplexing methods and approaches.

A system comprises a workload evaluator that is operable to receive a representative workload that is representative of competing demands for capacity of at least one shared computing resource. The workload evaluator evaluates the representative workload and computes a metric representing a degree of burstiness of demands present in the representative workload. The metric representing degree of burstiness of the representative workload may be used for estimating an upper bound on quality of service provided by a workload manager to the representative workload. The metric may also be used for evaluating at least one scheduler parameter setting of the workload manager to aid in determining an optimal parameter setting based at least in part on the estimated impact of the representative workload on QoS provided by the workload manager.

A relay selection method giving consideration to channel conditions and traffic states in multi-user cooperative communication is characterized by introducing a traffic arrival model which can embody traffic burstiness and self-similar characteristic to each user of the network, then comprehensively considering the different QoS requirements of each user traffic, and selecting the direct transmission mode when the channel conditions meet the threshold of signal to noise ratio corresponding to the minimal transmission rate requirement according to the current real-time channel condition and the traffic state; and based on the principles of proportional fairness and user satisfaction, selecting a cooperative partner as the relay user to participate in cooperative transmission when the channel conditions are less than the threshold of signal to noise ratio corresponding to the minimal transmission rate requirement and the cache region at the relay end is not full according to the multi-optimization objective of relay selection, so as to reduce the outage probability of the source user and the influence on the traffic transmission of the relay user, improve the traffic transmission performance of the source user, minimize the influence on the traffic transmission performance of the cooperative user, ensure the different QoS requirements of the user traffics and improve the communication reliability of the cooperative relay system.

A system and method are disclosed for using tolerances obtained from a user together with historical information about a communication network to analyze the network's performance and to calculate and recommend a specific change to the committed information rate (CIR) over a given frame relay permanent virtual circuit (PVC). The historical information, which is collected by a network management system connected to at least two communication devices in a communication network, relates to various performance parameters, which may include the total data transmitted, received and dropped above and within the original CIR, and the burstiness of the data. The historical information is automatically analyzed in view of the user's designated tolerances to determine the network's data transmission performance, and a forward-looking recommendation of an optimum CIR is made, based on the analysis. The results of the analysis and the recommended change to the CIR are displayed to the user in a graphical format.

A router includes an input section configured to receive data, a buffer section including a plurality of data storage sections and configured to store the data received by the input section, and an output section configured to output the data stored on the buffer section. The router also includes an allocation processing section configured to determine whether or not to store the data on a pre-secured specific data storage section among the plurality of data storage sections, or whether or not to store the data on a pre-secured specific data storage section among a plurality of data storage sections in a buffer section of another router which is an output destination, the determination being made based on information representing burstiness of the data received by the input section.

A network system (10), comprising a plurality of nodes (ERx, CRx). Each node in the plurality of nodes is coupled to communicate with at least one other node in the plurality of nodes. Each node of the plurality of nodes comprises a plurality of queues (32x) and is operable to perform the steps of receiving a plurality of packets and, for each received packet in the plurality of packets, coupling the received packet into a selected queue in the plurality of queues, wherein a respective selected queue is selected in response to the respective received packet satisfying one or more criteria. Each node of the plurality of nodes is also operable to perform the step of assigning a weight (Wx) to each respective queues in the plurality of queues. Each weight assigned to a respective queue in the plurality of queues is responsive to quality requirements for each packet in the respective queue and to a ratio of packet arrival variance in the respective queue and a mean of packets arriving to be stored in the respective queue during a time interval for minimizing the overall network traffic burstiness.

The invention discloses a method for locating faults in a power communication network. The method comprises the steps that a bipartite graph model is built according to the many-to-many uncertainty of faults and symptoms; fault effect weight factors are led in on the basis of the bipartite graph model; the fault effect degree is calculated and corrected through credible parameters to obtain suspected fault sets. According to the method, the many-to-many uncertainty of faults and symptoms is modeled through a weighting bipartite graph, so that the causal relationship between the faults and the symptoms is expressed, the modeling capacity is good, noise immunity is high, and the method can adapt to real environment with fault burstiness and network complexity. The fault effect weight is led in, the total probability and the Bayes thought are utilized under the bipartite graph model, prior fault probability is transformed into condition probability, and the fault effect degree is calculated; finally, credible parameters are added to control effect of suspected faults, the cover degree and the contribution degree are combined, and the suspected fault sets of which the effect degree is within the controllable parameter range are picked out.

The invention belongs to the technical field of network traffic resource situation prediction and particularly relates to a network traffic resource situation predication method based on a long short-term memory LSTM model. The invention aims to provide a Long Short-Term Memory LSTM cyclic neural network predictive model suitable for a traffic space-time nonlinear characteristic. The model combines the characteristics of strong burstiness and long-range dependence of actual traffic data for model training and quantitative prediction. The method in the invention has the following beneficial effects that the network traffic predication function is realized through the LSTM model, thereby effectively improving the prediction accuracy; and the advantages of the LSTM predication model are moreobvious when the difference of the data samples is large.

A system comprises a workload evaluator that is operable to receive a representative workload that is representative of competing demands for capacity of at least one shared computing resource. The workload evaluator evaluates the representative workload and computes a metric representing a degree of burstiness of demands present in the representative workload. The metric representing degree of burstiness of the representative workload may be used for estimating an upper bound on quality of service provided by a workload manager to the representative workload. The metric may also be used for evaluating at least one scheduler parameter setting of the workload manager to aid in determining an optimal parameter setting based at least in part on the estimated impact of the representative workload on QoS provided by the workload manager.

The embodiment of the invention discloses an alarm processing method and system, which belong to the technical field of network management and more effectively and radically solve the technical problems of burstiness, concurrency and repeatability of alarms. The alarm processing method comprises the steps that: an alarm source transmission unit set on each alarm source acquires the transmission time of the alarm source, wherein the transmission time of each alarm source is different; an alarm source receiving analysis unit receives a plurality of alarms from the alarm source; the alarm source receiving analysis unit combines alarms of same kinds in the alarms, generates the alarm information of each kind of alarms, and stores the alarm information into an alarm source caching unit; and the alarm source transmission unit transmits the stored alarm information at the transmission time of a corresponding alarm source. In the alarm processing system, alarm source equipment is set at each alarm source, and comprises the alarm source receiving analysis unit, the alarm source caching unit and the alarm source transmission unit. The invention is applied to an improved alarm processing system.

The invention discloses a self-adaptation flow control method suitable for wireless projection system real-time data transmission. The method includes the following steps: 1, a low pass filter is introduced in to calculate a smooth packet loss rate; 2, according to a network packet loss rate fed back by a receiving end, a network band width is divided into a jam state, an idle state and a full-load state; 3, the network state is judged to adjust transmitting speed in real time, if the network state is of the jam state, the transmitting speed is reduced and if the network state is of the idle state, the transmitting speed is increased, a loss rate of a smooth packet passing through the low pass filter is recalculated at the current moment to prepare judgment of the network state next time, and if the network state is of the full-load state, through calculation of integral marked quantity of transmission delay and delay jitter of a network, the transmitting speed is adjusted; and 4, a loss rate of a smooth packet passing through the low pass filter is recalculated at the current moment to prepare judgment of the network state next time. According to the self-adaptation flow control method suitable for the wireless projection system real-time data transmission, adjustment errors and large-margin shocking of the transmitting speed are reduced, the defects that an application flow is strong in burstiness, large in jitter and the like are overcome, and the transmission service quality is improved.

The invention discloses a CPU (Central Processing Unit) resource utilization forecasting method of a fine grit under a virtual environment. The method is characterized in that on the basis of difference of CPU use ratios collected by two system performance monitoring tools of Xenmon and Sar, a statistical learning method is adopted to provide an extra CPU consumption forecasting model controlled by a virtual machine manager. On the basis, corresponding CPU use probability density function forecasting methods are provided aiming at two different load characteristics of burstiness and non-burstiness. The CPU resource utilization forecasting method of the fine grit provides a good basis for system resource optimum allocation.

The invention discloses an emergency analyzing method based on microblogs. The emergency analyzing method based on the microblogs comprises the steps that firstly, burst words are analyzed, and compared with a previous technical method, analyzing of the burst words is characterized in that two features of the time domain and the frequency domain are used for judging the non-periodic burstiness of word feature tracks; secondly, in the situation that the burst words appear in a microblog item at the same time, different subject terms are clustered, one kind of burst words correspond to one emergency, and in order to better describe the emergencies, the emergencies can be described by reading the text part of the relevant microblogs of events which are issued at the earliest; thirdly, analyzing results of the emergencies are represented in a webpage mode. According to the emergency analyzing method based on the microblogs, the emergency analyzing method can be directly applied to a microblog pre-warning system, the concern extent of the emergencies is quantized into the proportion of the events appearing in microblog user comments, pre-warning is conducted in time, and the purposes of public opinion monitoring and managing are achieved.

The invention discloses a network flow identification method and electronic equipment. The method comprises the steps of: calculating characteristic condition probability models of a plurality of pieces of training network flow belonging to the same network flow type, which are related to different network flow attribute characteristics; receiving current network flow, and calculating network flow attribute characteristics of the current network flow; by using different network flow types of characteristic condition probability models, carrying out calculation on the corresponding network flow attribute characteristics of the current network flow so as to obtain a plurality of current characteristic condition probabilities related to different network flow types; by using a plurality of current characteristic condition probabilities belonging to the same network flow type, calculating a current type condition probability of the current network flow, which is related to the network flow type; and according to the current type condition probability, carrying out identification on the current network flow to obtain an identification result. According to the invention, network flow dynamic behavior characteristics are subjected to quantitative description and then an identification model is established to carry out identification. The method can be suitable for a network flow dynamic changing case, and can carry out accurate perception on high burstiness of network flow.

The invention relates to a scheduler method and device for handling output queues in a switch. The invention incorporates a number of co-operating techniques such as weighted and deficit driven round-robin and interleaving. The invention provides a scheduling method in a switch in which an input data stream is received and stored in a number of output queues, the method comprising the steps of: polling all queues in order; if the polled queue contains data, refilling a deficit value indicating a maximum amount of data that may be sent from this queue; if the deficit value permits, sending data, and decreasing the deficit value a corresponding amount for the polled queue, else disabling the queue; if any queue is permitted to send after all the queues have been polled, going to a local round, else start polling the first queue of the order again. The invention enables e.g. priority treatment of queues, fairness with regard to varying packet lengths and avoids burstiness.

An exhaustive service dual round-robin matching (EDRRM) arbitration process amortizes the cost of a match over multiple time slots. It achieves high throughput under nonuniform traffic. Its delay performance is not sensitive to traffic burstiness, switch size and packet length. Since cells belonging to the same packet are transferred to the output continuously, packet delay performance is improved and packet reassembly is simplified.

A “Burst Ratio” is defined for use as a measure of the burstiness of a packet-based network. One illustrative implementation of the Burst Ratio (R) is where R is equal to the ratio of the average length of observed bursts in a packet arrival sequence over the average length of bursts expected for a random loss packet-based network. Another illustrative implementation of the Burst Ratio (R) is in the context of a 2-state Markov model, wherein R=1 / (1+α−β), and α is the probability of losing packet n if packet n−1 was found (i.e., the probability of losing the next packet if the current packet was received) and β represents the probability of losing packet n if packet n−1 was lost (i.e., the probability of losing the next packet if the current packet was lost).

A method, apparatus, and computer program product for scheduling stream-based applications in a distributed computer system with configurable networks are provided. The method includes choosing, at a highest temporal level, jobs that will run, an optimal template alternative for the jobs that will run, network topology, and candidate processing nodes for processing elements of the optimal template alternative for each running job to maximize importance of work performed by the system. The method further includes making, at a medium temporal level, fractional allocations and re-allocations of the candidate processing elements to the processing nodes in the system to react to changing importance of the work. The method also includes revising, at a lowest temporal level, the fractional allocations and re-allocations on a continual basis to react to burstiness of the work, and to differences between projected and real progress of the work.

An exhaustive service dual round-robin matching (EDRRM) arbitration process amortizes the cost of a match over multiple time slots. It achieves high throughput under nonuniform traffic. Its delay performance is not sensitive to traffic burstiness, switch size and packet length. Since cells belonging to the same packet are transferred to the output continuously, packet delay performance is improved and packet reassembly is simplified.

The invention discloses a self-adaption method for mobile terminal call background sounds, and belongs to the technical field of communication. The method comprises the steps of establishing call connection with a called terminal; identifying keywords of a calling party appearing in a call process; searching background sounds matching with the keywords; and starting the background sounds, and mixing the sound source audio streams of the background sounds with the audio streams of an uplink audio channel, thereby enabling the called party to hear the background sounds. The invention also provides a self-adaption device for mobile terminal call background sounds. The keywords can be extracted at anytime in the call process of the calling party and the called terminal, the suitable background sounds can be found for the called party, and therefore, the performance efficiency of the background sounds can be improved; the burstiness and randomness in practical use can be satisfied; the sense of reality of the background sounds is increased; and the user experience is improved.

The invention belongs to the application field of burst-mode wireless transmission, and discloses a burst-mode broadband data processing device and a burst-mode broadband data processing method based on an FPGA chip. The burst-mode broadband data processing device comprises a transmitting end data processing model and a receiving end data processing model, wherein the transmitting end data processing model at least comprises a data scrambling unit, a convolutional encoding unit, a baseband mapping unit, an inverse Fourier transformation unit, a peak-to-average ratio (PAPR) suppression unit, an interpolation unit and a digital up-conversion unit; and the receiving end data processing model at least comprises a digital down-conversion unit, an extraction unit, a frame header detection unit, a timing synchronization unit, a fractional frequency deviation estimation and compensation unit, a Fourier transformation unit, an integer frequency deviation estimation and compensation unit, a channel estimation and equalization unit, a de-mapping unit and a channel decoding and descrambling unit. The burst-mode broadband data processing device and the burst-mode broadband data processing method improve the burstiness processing of a high-speed wireless communication system, and reduce the complexity of hardware implementation.

The invention discloses a device for a wireless remote control tire burst test, comprising a wheel. A wheel hub is provided with a deflation port, a deflation tube is welded at the deflation port, and the deflation tube is provided with an electromagnetic valve; and the electromagnetic valve supplies power through a direct current power source, and the on-off of the magnetic valve is controlled through a wireless remote control switch. The device is additionally provided with an accessory device on a tire wheel hub of a conventional automobile and uses the electromagnetic valve as a control unit to deflate the tire so as to achieve the test effect same as the tire burst without damaging the tire, thereby saving the cost and being favorable for repeated tests. Because the wireless remote control switch remotely controls the electromagnetic valve, the burstiness of the test is increased so that the device is particularly suitable for training drivers in special industries.

Devices, software, and methods measure a burstiness of packet loss episodes in transmissions of voice data through networks. At least one burstiness statistic is determined to quantify how the lost packets are distributed with respect to the received packets within the sequence. The burstiness statistic is optionally used to determine a figure of merit, which in turn can be used to give a grade for predicting how well a packet loss concealment scheme will work.

Devices, software, and methods measure a burstiness of packet loss episodes in transmissions of voice data through networks. At least one burstiness statistic is determined to quantify how the lost packets are distributed with respect to the received packets within the sequence. The burstiness statistic is optionally used to determine a figure of merit, which in turn can be used to give a grade for predicting how well a packet loss concealment scheme will work.

The invention discloses a double-channel power carrier communication system and a communication method thereof. The system comprises a microprocessing module, a transmission power amplifying circuit, a receiving and filtering circuit and a coupling circuit, wherein the output end of the microprocessing module is connected with the transmission power amplifying circuit, a signal is amplified and sent to a power line by the coupling circuit, the receiving and filtering circuit is connected with the coupling circuit to receive the signal from the power line, then the signal is filtered and sent to the microprocessing module, the receiving and filtering circuit comprises two paths of band pass filtering circuits, the microprocessing module is provided with two paths of signal receiving ends, and the signal receiving ends are correspondingly connected with the two paths of band pass filtering circuits to receive and process the signal. The communication system has the advantages that the burstiness on the pulse noise is realized, the channel with less noise influence can be automatically detected and selected for communication, and the influence by the pulse noise is effectively avoided.

The invention pertains to a data transmission method in the optical network communication technology. The invention organically combines optical circuit switching (OCS) and optical burst switching (OBS) based on the original physical topological network, reserves wavelength in each physical link to establish an overflow transmission light path, transmits the discarded data packets of the original OBS due to booking collision into the light path to transmit continuously, accordingly resolving the problem of packet loss due to one time booking collision; most of the data packets in the network operation adopts an OCS mode transmission, and adopts an OBS mode overflow transmission light path to transmit the data packets to destination nodes when the data conveying capacity has a high a burst performance; and can switch back to the OCS mode transmission when the OCS light path is smooth, accordingly can flexibly adjust the transmission modes according to the current state of network and significantly reduce the packet loss rate. The present invention thus not only has high efficiency of OCS but also has flexibility of OBS, and has features of strong transmission capability and adaptability to burst data streams, rapid network transmission, high reliability, no additional optical devices and the like.