Audio-based Event Detection for Sports Video pot

... points for each event, which aided this process. Using this information, a window from the start of the event to the end of the crowd response was created, for each true event. To measure performance, ... were placed in a seventh ‘ambiguous’ outlier class. Event Detection To identify key events, given a classified audio sequence, a further decision process was formed. Since a key...

Ngày tải lên: 23/03/2014, 13:20

... the Association for Computational Linguistics, pages 69–72, Avignon, France, April 23 - 27 2012. c 2012 Association for Computational Linguistics A Support Platform for Event Detection using ... with facility for rich user interaction. Our starting in the development of this system was the Ushahidi platform, 1 which has high up- take for social media surveillance and informatio...

Ngày tải lên: 08/03/2014, 21:20

... as event detection sensors, e.g., – Solar cells, for light; – Unbiased microphones, for audio; – Piezoelectric elements, for vibration; and – Peltier elements, for temperature differences. • Event ... output characteristics solely for the purpose of event detection. For example, in the ACM applica- tion, the geophone is used to detect events. However, upon detecting an ev...

Ngày tải lên: 23/03/2014, 13:20

... abnormal event detection for three sample videos from UMN dataset. The top row represents snapshots of the result for a video in the dataset. At the bottom, the ground truth bar and the detection ... one abnormal event. Three different levels of mea- surements are applied for evaluation, which are Pixel-level, Frame-level and Event- level measurements. 4.1. Global Abnormal Ev...

Ngày tải lên: 30/03/2014, 16:20

... that there is no need for unusual event training data for our approach. For the un- supervised HMM, there is no need for training data. The percentage of frames for unusual events in the test sequence is ... follows: FAR number of FAs number of u sual event samples (9) FRR number of FRs number of unusual event samples (10) The performance for an ideal event detection alg...

Ngày tải lên: 19/02/2014, 18:20

... then the uncertainty about rare events will eventually find its way into financial prices in the form of a premium. To formally investigate this possibility of ‘‘rare -event premium,’’ we adopt an ... to the problem: rare events and uncertainty aversion only toward rare events. 4.3.2 The case of habit formation. An alternative preference of interest is the external habit formation model of C...

Ngày tải lên: 07/03/2014, 10:20

... business colleague. Part 2 of Video for Business, Making Video for Profit, is available on the Kindle and elsewhere. VIDEO FOR BUSINESS 1 HOW TO COMMISSION A VIDEO by Val Whitter Copyright ... replication (for 1000 or more) Most video firms will arrange all this for you. If you are planning web or social media video the encoding and uploading for this will take pla...

Ngày tải lên: 09/03/2014, 02:20

... expansion of individual terms for this equation are dependent on the event model used. Use Equations 2 and 3 for the multi-variate Bernoulli event model. Use Equations 5 and 6 for the multinomial Feature ... to be the “events” and the document to be the collection of word events. We call this the multinomial event model. This approach is more traditional in statistical language mo...

Ngày tải lên: 16/03/2014, 19:20

... basic events in video is not feasi- ble. However, sports video does have characteris- tics that can be exploited to effectively represent complex events. Like much broadcast video, sports video ... sup- port video information retrieval. 4.3 Precision of Information Retrieval One of the most commonly used applications of ASR for video is to support information retrieval...

Ngày tải lên: 17/03/2014, 02:20

... these earlier events frameworks. By using a four-level event hierarchy, IDEA can include new event forms as specifications of more general event Doug Bond et al. INTEGRATED D ATA FOR EVENTS ANALYSIS 735 68S ... the Integrated Data for Event Analysis (IDEA) project. IDEA provides a comprehensive events framework for the analysis of international interactions by supplementing the...

Ngày tải lên: 23/03/2014, 13:20