An embodiment of a system to synchronize data streams is described. During operation, the system receives a first data stream having a first data type and performs a sequence of operations on at least a portion of the first data stream. Next, the system stores metadata associated with the first data stream one or more times during the sequence of operations. Metadata can include a time stamp, data-stream information associated with the portion of the first data stream, and event information associated with the occurrence of one or more events during the sequence of operations. Moreover, the system provides a notification based on the stored metadata, the notification to facilitate synchronizing the first data stream with a second data stream having a second data type.

Using time-stamped event entries to facilitate synchronizing data streams

Improved human health monitoring is provided in the context of sensor measurements of typical vital signs and other biological parameters, by a system and method using an empirical model of the parameters and disposed to estimate values of the parameters in response to actual measurements. Residuals resulting from the difference between the estimates and actual measurements are analyzed for robust indications of incipient health issues. Residual analysis is both more robust and more sensitive than conventional univariate range checking on vital signs.

Residual-Based Monitoring of Human Health

A computerized method and apparatus for providing a virtual media channel based on media search is featured. The method and apparatus features the steps of, or structure for, obtaining a set of rules that define instructions for obtaining media content that comprise the content for a media channel, the set including at least one rule with instructions to include media content resulting from a search; searching for candidate media content according to a search query defined by the at least one rule; and merging one or more of the candidate media content resulting from the search into the content for the media channel. The candidate media content can include segments of the media content resulting from the search. The set of rules can additionally include a rule with instructions to add media content from a predetermined location.

Methods and apparatus for providing virtual media channels based on media search

A data collection system collects and stores physiological data from an ambulatory patient at a high resolution and/or a high data rate (“more detailed data”) and sends a low-resolution and/or downsampled version of the data (“less detailed data”) to a remote server via a wireless network. The server automatically analyzes the less detailed data to detect an anomaly, such as an arrhythmia. A two-tiered analysis scheme is used, where the first tier is more sensitive and less specific than the second tier. If the more sensitive analysis detects or suspects the anomaly, the server signals the data collector to send more detailed data that corresponds to a time period associated with the anomaly. The more specific second tier analyses the more detailed data to verify the anomaly. The server may also store the received data and make it available to a user, such as via a graphical or tabular display.

Remote health monitoring system

A computerized method and apparatus is disclosed for dynamic presentation of advertising, factual, informational content and combinations thereof. In particular, the advertising content is dynamically presented according to the playback of corresponding segments identified within a media file or stream.

Methods and apparatus for dynamic presentation of advertising, factual, and informational content using enhanced metadata in search-driven media applications

A method and system for scheduling jobs in a cluster of compute servers using dynamic job profiling improves the overall performance of the computing cluster Specifically, the method and system monitors the performance of individual compute servers in a cluster, and assigns jobs to particular compute servers based on the most current performance information of the compute servers As the job profiles of the compute servers change with every job processed, the decision as to which compute server is most appropriate for a particular job will dynamically change Various scheduling algorithms can be used in connection with the method and system to assign jobs to specific compute servers based on the available information in the job profiles

Method and system for guiding scheduling decisions in clusters of computers using dynamic job profiling

We have developed an audio search engine incorporating speech recognition technology. This allows indexing of spoken documents from the World Wide Web when no transcription is available. This site indexes several talk and news radio shows covering a wide range of topics and speaking styles from a selection of public Web sites with multimedia archives. Our Web site is similar in spirit to normal Web search sites; it contains an index, not the actual multimedia content. The audio from these shows suffers in acoustic quality due to bandwidth limitations, coding, compression, and poor acoustic conditions. The shows are typically sampled at 8 kHz and transmitted, RealAudio compressed, at 6.5 kbps. Our word-error rate results using appropriately trained acoustic models show remarkable resilience to the high compression, though many factors combine to increase the average word-error rates over standard broadcast news benchmarks. We show that, even if the transcription is inaccurate, we can still achieve good retrieval performance for typical user queries (69%). Because the archive is large - over 5000 hours of content (and growing at a rate of 100 hours per week), totaling 47 million words and growing rapidly - we measure performance in terms of the precision of the top-ranked matches returned to the user.

SpeechBot: a speech recognition based audio indexing system for the web

Computer method and apparatus of analyzing ECG signals of a subject include receiving a subject electrocardiogram signal and comparing it against signal patterns of known cardiac syndromes. A library of example predefined signals is employed. Distance measures indicating similarity of the subject signal to the example predefined signals are produced and form a sequence of vectors. The sequence of vectors are input into a classifier which determines existence of signal patterns indicative of any cardiac syndromes in the subject.

Cardiac diagnostic system and method

Computer method and apparatus for reading and analyzing ECG signals includes applying a plurality of heart condition detectors to a subject ECG signal. Each detector produces a respective indication of likelihood of certain heart conditions existing in the subject. A lattice having annotations of the different detector heart conditions is formed from the detector indications. The lattice enables medical personnel to navigate through and hence more easily read the ECG signal data. The lattice effectively provides an indexed or annotated version of the subject ECG signal.

Computer method and system for reading and analyzing ecg signals

A computer method and system synchronizes one streaming data signal with another data signal. A subject data signal and working data signal are received. The working data signal has predefined coordinates in a coordinate system (e.g., time origin and unit sampling rate in a time coordinate system for audio). The subject data signal and working data signal are transformed into respective common representations. An alignment process aligns the respective transformed representations by matching the transformed representation of the working data signal to that of the subject signal. A re-synchronizer element transposes the predefined coordinates of the working data signal onto the subject signal in the aligned state of the respective transformed representations. As such, the subject data signal is synchronized to the coordinate system of the working data signal.

David Goddeau

Papers

Method and system for guiding scheduling decisions in clusters of computers using dynamic job profiling

SpeechBot: a speech recognition based audio indexing system for the web

Cardiac diagnostic system and method

Computer method and system for reading and analyzing ecg signals

Content-based synchronization method and system for data streams