Sequential fraud detection for prepaid cards using hidden Markov model divergence

WN Robinson, A Aria - Expert Systems with Applications, 2018 - Elsevier
Stored-value cards, or prepaid cards, are increasingly popular. Like credit cards, their use is
vulnerable to fraud, costing merchants and card processors millions of dollars. Prior …

SMETANA: accurate and scalable algorithm for probabilistic alignment of large-scale biological networks

SME Sahraeian, BJ Yoon - PloS one, 2013 - journals.plos.org
In this paper we introduce an efficient algorithm for alignment of multiple large-scale
biological networks. In this scheme, we first compute a probabilistic similarity measure …

Data-free metrics for Dirichlet and generalized Dirichlet mixture-based HMMs–A practical study

E Epaillard, N Bouguila - Pattern Recognition, 2019 - Elsevier
Approaches to design metrics between hidden Markov models (HMM) can be divided into
two classes: data-based and parameter-based. The latter has the clear advantage of being …

A normalized statistical metric space for hidden markov models

C Lu, JM Schwier, RM Craven, L Yu… - IEEE transactions on …, 2013 - ieeexplore.ieee.org
In this paper, we present a normalized statistical metric space for hidden Markov models
(HMMs). HMMs are widely used to model real-world systems. Like graph matching, some …

Comparative analysis of biological networks: Hidden markov model and markov chain-based approach

BJ Yoon, X Qian, SME Sahraeian - IEEE Signal Processing …, 2011 - ieeexplore.ieee.org
This study reviewed the application of Markov models to various comparative network
analysis problems which provides a powerful means of gaining novel system-level …

[HTML][HTML] Quantifying Asymmetric Gait Pattern Changes Using a Hidden Markov Model Similarity Measure (HMM-SM) on Inertial Sensor Signals

G Ng, A Gouda, J Andrysek - Sensors, 2024 - mdpi.com
Wearable gait analysis systems using inertial sensors offer the potential for easy-to-use gait
assessment in lab and free-living environments. This can enable objective long-term …

Optimality and complexity in measured quantum-state stochastic processes

A Venegas-Li, JP Crutchfield - Journal of Statistical Physics, 2023 - Springer
If an experimentalist observes a sequence of emitted quantum states via either projective or
positive-operator-valued measurements, the outcomes form a time series. Individual time …

An accurate HMM-based similarity measure between finite sets of histograms

S Iloga, O Romain, M Tchuenté - Pattern Analysis and Applications, 2019 - Springer
Histogram analysis has nowadays gain in interest, and a lot of work yet address this task. In
most of the existing approaches, histograms are manipulated as simple vectors or as statistic …

Acoustic unit discovery and pronunciation generation from a grapheme-based lexicon

W Hartmann, A Roy, L Lamel… - 2013 IEEE Workshop on …, 2013 - ieeexplore.ieee.org
We present a framework for discovering acoustic units and generating an associated
pronunciation lexicon from an initial grapheme-based recognition system. Our approach …

Assessing the resilience of stochastic dynamic systems under partial observability

J Panerati, N Schwind, S Zeltner, K Inoue, G Beltrame - Plos one, 2018 - journals.plos.org
Resilience is a property of major interest for the design and analysis of generic complex
systems. A system is resilient if it can adjust in response to disruptive shocks, and still …