Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 138 for “"event detection"”.
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ACED: Automatic Concourse Event Detection
… arena or waiting for food. Automatic Concourse Event Detection (ACED) is a novel system designed for tracking these statistics in the Spurs’ arena in real time. We use existing machine learning models and introduce novel processing algorithms to identify the total number of people in each …
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Multimedia Content Analysis for Event Detection
… is the inherent link between ''media" and the ''events" that such media are depicting. We will present two different methodologies related to such problem, and in particular to the automatic discovery of event-semantics from media contents. The two methodologies address this general problem at …
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Event Detection in the Terrain Surface
Event Detection is a process of identifying terrain flatness from which localized events such as potholes in the terrain surface can be found and is an important tool in pavement health monitoring and vehicle performance inspection. Repeated detection of terrain surfaces over an extended period of …
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Towards Explainable Event Detection and Extraction
Event extraction refers to extracting specific knowledge of incidents from natural language text and consolidating it into a structured form. Some important applications of event extraction include search, retrieval, question answering and event forecasting. However, before events can be extracted …
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A multiprocessing platform for transient event detection
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
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Spectral envelope estimation for transient event detection
… by properly locating and identifying transient events in the spectral envelopes of the current waveform measured at the utility service entry. The spectral envelopes of the current waveform are the coefficients of its time varying Fourier series representation and as such can be estimated by …
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Event Detection and Extraction from News Articles
Event extraction is a type of information extraction(IE) that works on extracting the specific knowledge of certain incidents from texts. Nowadays the amount of available information (such as news, blogs, and social media) grows in exponential order. Therefore, it becomes imperative to develop …
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Robust Event Detection and Retrieval in Surveillance Video
We developed a robust event detection and retrieval system for surveillance video. The proposed system offers vision-based capabilities for the detection and tracking of various objects of interest, and can recognize events such as: 1. a person with certain attributes being present in the scene; 2. …
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AI-assisted Anomalous Event Detection for Connected Vehicles
… call for characterization of risky driving events to improve safety applications and autonomous driving features. Precision of driving event characterization (\gls{dec}) systems in connected vehicles has become increasingly important with the responsive connectivity that is available to the …
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Non-speech Acoustic Event Detection Using Multimodal Information
Non-speech acoustic event detection (AED) aims to recognize events that are relevant to human activities associated with audio information. Much previous research has been focused on restricted highlight events, and highly relied on ad-hoc detectors for these events. This thesis focuses on using …
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Local event detection in geo-tagged tweet streams
The real-time discovery of local events (e.g., protests, disasters) has been widely recognized as a fundamental socioeconomic task. Recent studies have demonstrated that the geo-tagged tweet stream serves as an unprecedentedly valuable source for local event detection. Nevertheless, how to …
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Spatio-temporal Event Detection and Forecasting in Social Media
… of methods for social media-based spatiotemporal event detection and forecasting for a variety of event topics and assumptions. Five methods are proposed, namely dynamic query expansion for event detection, a generative framework for event forecasting, multi-task learning for spatiotemporal event …
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Trajectory Analysis for Event Detection in Ambient Intelligence Applications
The automatic understanding of human activity is probably one of the most challenging problems for the scientific community. Several application domains would benefit of such an analysis, from context-aware computing, to area monitoring and surveillance, to assistive technologies for elderly or …
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Time series analysis for event detection in text data
… requirement of different text mining problems. Event detection is the general task of finding any emerging events, such as significant changes in stock price, anomalies in climate data, and outbreaks of a certain disease, depending on the data we are interested in. While in text mining, event …
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Vibration Event Detection and Classification in an Instrumented Building
… information about the types of acceleration events that are occurring within the structure. In the case of monitored smart buildings, some of these acceleration events are linked to occupant behavior, such as walking, operating machinery, closing doors, etc. The identification and …
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Modeling audio and visual cues for real-world event detection
Audio-visual event detection aims to identify semantically defined events that reveal human activities. Most previous literature focused on restricted highlight events, and depended on highly ad-hoc detectors for these events. This research emphasizes generalizable robust modeling of …
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ZStream : a cost-based query processor for composite event detection
Composite (or Complex) event processing (CEP) systems search sequences of incoming primitive events for occurrences of user-specified event patterns. Recently, they are gaining more and more attention in a variety of areas due to their powerful and expressive query language and performance …
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Ambulatory Fall Event Detection with Integrative Ambulatory Measurement (IAM) Framework
… an effort to advance indirect type of injury prevention approach. The overall objective was to develop a new fall event detection algorithm and a new integrative ambulatory measurement (IAM) framework which could further improve the fall detection algorithm's performance in detecting …
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Soccer Last Touch and Automatic Event Detection with Skeletal Tracking Data
… more easily and efficiently scrutinize game events for strategy improvement and individual player evaluation. Currently, most existing event data is annotated manually by hand, which is an extremely time-consuming task. Recent works in automatic event generation leverage decision tree …
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