National Taiwan University

Industrial Technology Research Institute

Tsinghua University

Benq Corporation

Institute for Information Industry

Telcodia Applied Research Center Taiwan Co.

Telcordia Applied Research Taiwan Company

Benq Corproation

Phone Lin

Chia-Peng Lee

Xin-Xue Lin

En-Hau Yeh

Chin-Liang Wang

Yi-Bing Lin

Ray-Guang Cheng

Chung-Min Chen

Whai-En Chen

Yen-Cheng Lai

Guan-Hua Tu

Shun-Neng Yang

Lu-Tsung Chang

Ting-Yu Wang

Huai-Lei Fu

Wanjiun Liao

Chen-Kai Hsieh

Yun-Yin Huang

Tao Zhang

Chi-Wei Tseng

Jason Yi-Bing Lin

Hau Chen

Char-Dir Chung

Brian Hu Zhang

Pai-Chun Chung

According to one embodiment of the invention, a method for detecting driving anomalies comprises steps of: with at least one algorithm, processing raw data from On-Board Diagnostics of a car to generate time-series data, with the time series data as input, using an automatic driving behavior separating technology to identify a plurality of driving behaviors; with the driving behaviors as input, using an artificial intelligence technology to build up a driving anomaly detection model without labeling the driving behaviors; and issuing an alarm for driving anomaly identified according to an analyzing result of alarm signature of the driving behaviors.

Method and system for detecting driving anomalies

An anomaly flow detection device and an anomaly flow detection method thereof are provided. The device can retrieve a plurality of training data transmitted between a monitored network and an external network, preprocess a plurality of packet headers of the pluralities of training data to obtain a plurality of training feature vectors, construct a flow recognition model with an unsupervised learning method, input the pluralities of training feature vectors to the flow recognition model to train the flow recognition model, retrieve a plurality of testing data transmitted between the monitored network and the external network, preprocess a plurality of packet headers of the pluralities of testing data to obtain a plurality of testing feature vectors, input the pluralities of testing feature vectors to the flow recognition model to identify whether the pluralities of packet headers of the pluralities of testing data are normal or abnormal, and determine the flow of the monitored network is abnormal according to the recognition result of the flow recognition model.

Anomaly flow detection device and anomaly flow detection method

A detective method, applied in a detective system comprising an activity-or-behavior model constructor, for activity-or-behavior model construction and automatic detection of activities of a subject system, comprises steps of using an unsupervised machine learning technique, a Natural Language Processing technique (NLP) and a supervised machine learning technique. As such, an activity-or-behavior model is built for predicting the future behaviors of the subject system and automatically detecting abnormal activities or behaviors of the subject system. The activity-or-behavior model is capable to handle multidimensional sensor data input from a plurality of sensor data streams and incorporate the sensor data values and a selected temporal information about at least one sensor data stream and between different sensor data streams.

Detective method and system for activity-or-behavior model construction and automatic detection of the abnormal activities or behaviors of a subject system without requiring prior domain knowledge

An offload determination system for multiple wireless network, a server and a method thereof are provided. The system includes a server, a first and a second wireless base station and a user equipment (UE). The first and the second wireless base station provides a first and a second wireless network respectively. The server has traffic tariff information corresponding to the UE. The server monitors and obtains quality of service (QoS) information of the first and the second wireless base station respectively, evaluates a data transfer efficiency information of the first and the second wireless base stations according to the traffic tariff information and the QoS information, and transmits the data transfer efficiency information to the UE. The UE selectively uses the first or second wireless network based on the data transmission efficiency information.

Offload determination system for multiple wireless network, server and method thereof

The present application is provided a system and a method of a trigger service, which is applied between an end equipment group and an application service terminal. The end equipment group includes a plurality of end equipment, and the end equipment of the mobile equipment group is configured to sequentially connect to mobile network. Each of the end equipment is configured to keep connection with mobile network in a waiting period and suspended to access mobile network after the waiting time period. The application service terminal is configured to transmit a trigger message to the end equipment group, and the trigger message is repeatedly transmitted in a transmission period of the message arrangement. During the transmission period, each of the end equipment of each end equipment group in mobile network is configured to execute the requested order of the trigger message when it receives the trigger message from the application service terminal.

System and method of trigger service

The present application provides a peer-to-peer networking method and system for integrating heterogeneous social networks. The method applied in a server device includes the following steps: First, the server device connects with a plurality of peer nodes; each of the peer node defines a user end and accessing at least one social network. Then, the server device according to a social relationship of the social networks links to the corresponding peer nodes for integrating a peer-to-peer social network (P2P-iSN) which configures a plurality of social paths among the peer nodes from the different social networks.

Global relationship model and a relationship search method for internet social networks

A method for reducing the handover frequency by a communication device in femtocell networks includes the steps: measuring the radio signal strength by a communication device and storing the information of the serving base station into a cache memory; checking whether the stored information in the cache memory is classified as 'femtocell' or not; if so, deleting the macrocell's information from the measurement report by the communication device and transmitting this to the serving base station; when the radio link failure occurred, checking whether the stored information in the cache memory is classified as 'femtocell' or not; if so, initiating a timer; detecting an available femtocell before the timer expires; transmitting a call reestablishment request message to the available femtocell for rebuilding the link.

Method for reducing the handover frequency by a communication device in femtocell networks

An data transmission adjustment system that comprises a server and a plurality of data transmission devices within a sensing region. The server adapts to receive a sensed data from at least one data transmission device, define a timeline, divide the timeline into a plurality of monitoring periods, calculate a ratio of the number of the monitoring periods that have received the sensing data from the data transmission device within the sensing region or not to the number of all the monitoring periods, and broadcast at least one message to the data transmission devices within the sensing region according to said ratio.

Data transmission adjustment system and data transmission adjustment method

A method for reducing the handover frequency by a femto gateway in femtocell networks includes the steps: receiving a measurement report from a communication device by an initial femtocell; transmitting a relocation required message to a femto gateway by the initial femtocell if the signal strength thereof is below a threshold; ignoring the relocation required message and enabling the timer by the femto gateway after receiving the relocation required message; determining whether the cell ID included in the call reestablishment request message is classified as 'femtocell' or not by the femto gateway before the timer expires; if so, rebuilding the link to the femtocell in response to the cell ID by the femto gateway.

Method for reducing the handover frequency by a femto gateway in femtocell networks

In a Vehicular Ad Hoc Network (VANET) a hybrid method combines SDMA (Space Division Multiple Access) and dynamic TDMA (Time Division Multiple Access) that divides the roadway into regions (whose size is larger than the SDMA unit) where each region is allocated a pool of radio channels based on SDMA and may contain a limited number of vehicles. Vehicles within the same region compete for and access the channels using dynamic TDMA. A channel allocation scheme that maps the pool of channels to the regions such that when a vehicle acquires multiple channels (time slots) in a region, the intervals among the channels are as uniform as possible, thus minimizing the waiting time of the messages to be broadcast by the vehicle, which is critical for safety related applications. This solution is referred to as R-SDMA (Region based SDMA).

Region-based clustering mechanism for channel access in vehicular Ad Hoc networks

A channel buffering method is for dynamically altering a number of channels for an Internet protocol television (IPTV). The method is applicable for a home gateway (HG) having a channel section used for channel buffering. After the HG has received two consecutive channel-switching requests, the HG compares whether the two requests are similarly directed to switching a channel towards the same direction or not; if yes, a cumulative switching frequency is set, and two trimming numerical values are set through the cumulative switching frequency, and thus, the channel section for buffering the channels can be dynamically adjusted through the two trimming numerical values.

Channel buffering method for dynamically altering channel number of internet protocol television

A file repair method for Multimedia Broadcast Multicast Service (MBMS) and a UMTS network are disclosed. According to the method, a data structure is established according to a repair request message sent from a user equipment. Each repair block is multicast to the user equipment that requested it by using the original MBMS Bearer Service for file downloading according to the data structure. The present invention does not need any extra traffic and additional control signaling to allow each user equipment to receive required repair blocks.

File repair method for MBMS and UMTS network

The present invention provides an overflow control method for frame synchronization of base stations in wireless communication network system. The wireless communication network system includes a radio network controller, a first base station, a second base station, and a mobile unit. The radio network controller transmits a plurality of data frames to the first base station and the second base station. The present invention includes the following steps. First, determine whether number of the plurality of data frames received by the second base station is larger than a judging storage capacity. Second, calculate an X and delete X of data frames from the second base station if the number is larger. The X is equal to the result of subtracting the judging storage capacity from the number. Meanwhile, detect a link quality between the mobile unit and the first base station. If the link quality is lower than a preset value, calculate an N and delete N of data frames from the second base station when N is larger than zero. The N is equal to number of data frames not yet deleted from the second base station and already received by the mobile unit.

Overflow control method for frame synchronization of base stations in wireless communication network system

A method of relay transmission in a mobile communication system. The mobile communication system includes at least one base station and a plurality of user equipment units (UEs). When one of the UEs attempts to send a message to the base station, this one of the UEs, referred to as a requesting UE, is capable of using the method of relay transmission to send messages to the base station via another one or more UEs, referred to as relay UEs. The method of relay transmission includes the following steps. First, a relay request confirmation procedure for the requesting UE and the relay UE is performed. Second, a base station confirmation procedure for the requesting UE, the relay UE, and the base station is executed. Next, an identity authentication procedure for the requesting UE, the relay UE, and the base station is performed. After that, a relay start confirmation procedure for the requesting UE and the relay UE is executed. Finally, a relay transmission procedure for the requesting UE, the relay UE, and the base station is performed, wherein the requesting UE sends the message to the base station via the relay UE. According to the invention, high data rate transmission can be achieved even if the requesting UE is distant from the base station, and thus communication quality can be improved, with a reduced cost.

Growing community of inventors

Taipei, Taiwan

Phone Lin