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  • Evolving topic models

    A Publication, Text Mining using Dynamic Topic Models - 12 years, 8 months ago

    Shared By: Kanishka Bhaduri

  • Algorithms for Speeding up Distance-Based Outlier Detection

    A Publication, Scalable Outlier Detection on Very Large Datasets - 12 years, 8 months ago

    Shared By: Kanishka Bhaduri

    The problem of distance-based outlier detection is difficult to solve efficiently in very large datasets because of potential quadratic time complexity. We address this problem ...

    Image

  • An Analysis on Density Based Clustering of Multi Dimensional Spatial Data

    A Publication, Aerospace Simulation Clustering Experiments - 12 years, 9 months ago

    Shared By: Joseph Fluegemann

    Nice easy intro to kmeans and DBScan

  • Fleet Level Anomaly Detection of Aviation Safety Data

    A Publication, Multiple Kernel Learning based Heterogeneous Algorithm (MKAD) - 7 years, 9 months ago

    Shared By: Santanu Das

    For the purposes of this paper, the National Airspace System (NAS) encompasses the operations of all aircraft which are subject to air traffic control procedures. ...

    meatball

  • Cluster validation using information stability measures

    A Publication, Aerospace Simulation Clustering Experiments - 11 years, 9 months ago

    Shared By: MISTY DAVIES

    In this work, a novel technique to address the problem of cluster validation based on cluster stability properties is presented. The stability index here proposed ...

  • Methods of Determining the Number of Clusters in a Data Set and a New Clustering ...

    A Publication, Aerospace Simulation Clustering Experiments - 12 years, 10 months ago

    Shared By: Joseph Fluegemann

    In this dissertation, we tackle this problem of estimating the number of clusters, which is particularly oriented at processing very complicated data which may contain ...

  • AN EXAMINATION OF PROCEDURES FOR DETERMINING THE NUMBER OF CLUSTERS IN A DATA SET

    A Publication, Aerospace Simulation Clustering Experiments - 12 years, 10 months ago

    Shared By: Joseph Fluegemann

    A Monte Carlo evaluation of 30 procedures for determining the number of clusters was conducted on artificial data sets which contained either 2, 3, 4, ...

  • THE APPLICATION OF CLUSTER ANALYSIS IN STRATEGIC MANAGEMENT RESEARCH: AN ANALYSIS AND CRITIQUE

    A Publication, Aerospace Simulation Clustering Experiments - 12 years, 10 months ago

    Shared By: Joseph Fluegemann

    1996 This paper chronicles the application of cluster analysis in strategic management research, where the technique has been used since the late 1970s to investigate ...

  • Experimental Validation of a Prognostic Health Management System for Electro-Mechanical Actuators

    A Publication, EDWARD BALABAN's Collection - 12 years, 11 months ago

    Shared By: EDWARD BALABAN

    Electro-Mechanical Actuators (EMA) are gaining prominent roles in the next generation fly-by-wire aircraft and spacecraft. With these roles often being safety-critical (control surface or landing ...

    meatball

  • Airborne Electro-Mechanical Actuator Test Stand for Development of Prognostic Health Management Systems

    A Publication, EDWARD BALABAN's Collection - 12 years, 11 months ago

    Shared By: EDWARD BALABAN

    With the advent of the next generation of aerospace systems equipped with fly-by-wire controls, electromechanical actuators (EMA) are quickly becoming components critical to safety of ...

    meatball

  • Combining Model-Based and Feature-Driven Diagnosis Approaches – A Case Study on Electromechanical Actuators

    A Publication, EDWARD BALABAN's Collection - 12 years, 11 months ago

    Shared By: EDWARD BALABAN

    Model-based diagnosis typically uses analytical redundancy to compare predictions from a model against observations from the system being diagnosed. However this approach does not work ...

    meatball

  • Modeling, Detection, and Disambiguation of Sensor Faults for Aerospace Applications

    A Publication, EDWARD BALABAN's Collection - 12 years, 11 months ago

    Shared By: EDWARD BALABAN

    Electro-mechanical actuators (EMA) are finding increasing use in aerospace applications, especially with the trend towards all all-electric aircraft and spacecraft designs. However, electro- mechanical actuators ...

    meatball

  • A Diagnostic Approach for Electro-Mechanical Actuators in Aerospace Systems

    A Publication, EDWARD BALABAN's Collection - 12 years, 11 months ago

    Shared By: EDWARD BALABAN

    Electro-mechanical actuators (EMA) are finding increasing use in aerospace applications, especially with the trend towards all all-electric aircraft and spacecraft designs. However, electro-mechanical actuators still ...

    meatball

  • Experimental Data Collection and Modeling for Nominal and Fault Conditions on Electro-Mechanical Actuators

    A Publication, EDWARD BALABAN's Collection - 12 years, 3 months ago

    Shared By: EDWARD BALABAN

    Being relatively new to the field, electromechanical actuators in aerospace applications lack the knowledge base compared to ones accumulated for the other actuator types, especially ...

    meatball

  • Metrics for Evaluating Performance of Prognostics Techniques

    A Publication, EDWARD BALABAN's Collection - 12 years, 11 months ago

    Shared By: EDWARD BALABAN

    Prognostics is an emerging concept in condition based maintenance (CBM) of critical systems. Along with developing the fundamentals of being able to confidently predict Remaining ...

    meatball

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