340 research outputs found
Causal Analysis of Customer Churn Using Deep Learning
Customer churn describes terminating a relationship with a business or
reducing customer engagement over a specific period. Two main business
marketing strategies play vital roles to increase market share dollar-value:
gaining new and preserving existing customers. Customer acquisition cost can be
five to six times that for customer retention, hence investing in customers
with churn risk is smart. Causal analysis of the churn model can predict
whether a customer will churn in the foreseeable future and assist enterprises
to identify effects and possible causes for churn and subsequently use that
knowledge to apply tailored incentives. This paper proposes a framework using a
deep feedforward neural network for classification accompanied by a sequential
pattern mining method on high-dimensional sparse data. We also propose a causal
Bayesian network to predict cause probabilities that lead to customer churn.
Evaluation metrics on test data confirm the XGBoost and our deep learning model
outperformed previous techniques. Experimental analysis confirms that some
independent causal variables representing the level of super guarantee
contribution, account growth, and customer tenure were identified as
confounding factors for customer churn with a high degree of belief. This paper
provides a real-world customer churn analysis from current status inference to
future directions in local superannuation funds.Comment: 6 page
An Analysis of Management Buy-out Failure in Recession
The UK buy-out market went down in the last quarter of 2008 with a significant reduction of deal numbers and deal values. Besides, the exit market has been difficult through 2008 with no buy-out IPOs but large proportion of receiverships. Therefore buy-out failure attracts interest and it would be worthwhile to identify factors that leads to or predicts a failure, particularly in a recessional condition.
This study is built on previous studies of Wright et al. (1996) and Wilson et al. (2009) which estimated buy-out failure in recessions of 1990s and 2008 respectively. A logit model is applied in the paper but did not show significant results. Nevertheless, the significant and positive sign of interest cover indicates the impact of leverage and profitability on the probability of failure
Churn Prediction via Multimodal Fusion Learning:Integrating Customer Financial Literacy, Voice, and Behavioral Data
In todays competitive landscape, businesses grapple with customer retention.
Churn prediction models, although beneficial, often lack accuracy due to the
reliance on a single data source. The intricate nature of human behavior and
high dimensional customer data further complicate these efforts. To address
these concerns, this paper proposes a multimodal fusion learning model for
identifying customer churn risk levels in financial service providers. Our
multimodal approach integrates customer sentiments financial literacy (FL)
level, and financial behavioral data, enabling more accurate and bias-free
churn prediction models. The proposed FL model utilizes a SMOGN COREG
supervised model to gauge customer FL levels from their financial data. The
baseline churn model applies an ensemble artificial neural network and
oversampling techniques to predict churn propensity in high-dimensional
financial data. We also incorporate a speech emotion recognition model
employing a pre-trained CNN-VGG16 to recognize customer emotions based on
pitch, energy, and tone. To integrate these diverse features while retaining
unique insights, we introduced late and hybrid fusion techniques that
complementary boost coordinated multimodal co learning. Robust metrics were
utilized to evaluate the proposed multimodal fusion model and hence the
approach validity, including mean average precision and macro-averaged F1
score. Our novel approach demonstrates a marked improvement in churn
prediction, achieving a test accuracy of 91.2%, a Mean Average Precision (MAP)
score of 66, and a Macro-Averaged F1 score of 54 through the proposed hybrid
fusion learning technique compared with late fusion and baseline models.
Furthermore, the analysis demonstrates a positive correlation between negative
emotions, low FL scores, and high-risk customers
Acute Tachycardia Increases Aortic Distensibility, but Reduces Total Arterial Compliance Up to a Moderate Heart Rate
Background: The differential effects of rapid cardiac pacing on small and large vessels have not been well-established. The objective of this study was to investigate the effect of pacing-induced acute tachycardia on hemodynamics and arterial stiffness.Methods: The pressure and flow waves in ascending aorta and femoral artery of six domestic swine were recorded simultaneously at baseline and heart rates (HR) of 135 and 155 beats per minutes (bpm) and analyzed by the models of Windkessel and Womersley types. Accordingly, the flow waves were simultaneously measured at carotid and femoral arteries to quantify aortic pulse wave velocity (PWV). The arterial distensibility was identified in small branches of coronary, carotid and femoral arteries with diameters of 300–600 μm by ex vivo experiments.Results: The rapid pacing in HR up to 135 bpm reduced the total arterial compliance, stroke volume, systemic pulse pressure, and central systolic pressure by 36 ± 17, 38 ± 26, 29 ± 16, and 23 ± 12%, respectively, despite no statistical difference of mean aortic pressure, cardiac output, peripheral resistance, and vascular flow patterns. The pacing also resulted in a decrease of distensibility of small muscular arteries, but an increase of aortic distensibility. Pacing from 135 to 155 bpm had negligible effects on systemic and local hemodynamics and arterial stiffness.Conclusions: There is an acute mismatch in the response of aorta and small arteries to pacing from basal HR to 135 bpm, which may have important pathological implications under chronic tachycardia conditions
The one-dimensional polymer poly[[aquaÂ(2,2′-bipyridine)cadmium(II)]-ÎĽ-trans-stilbene-4,4′-dicarboxylÂato]
In the title polymer, [Cd(C16H10O4)(C10H8N2)(H2O)]n, the CdII ion is in a strongly distorted octaÂhedral geometry, being coordinated by two N atoms from a 2,2′-bipyridine ligand, three carboxylate O atoms from two symmetry-related trans-stilbene-4,4′-dicarboxylÂate dianions and one water molÂecule. The stilbene ligand lies on an inversion centre at the midpoint of the central C=C bond. This feature generates the polymeric structure: adjacent CdII ions are bridged by trans-stilbene-4,4′-dicarboxylÂate dianions, giving rise to a one-dimensional structure. The coordinated water molÂecule is involved in interchain O—Hâ‹ŻO hydrogen bonds
High-order Spatial Interactions Enhanced Lightweight Model for Optical Remote Sensing Image-based Small Ship Detection
Accurate and reliable optical remote sensing image-based small-ship detection
is crucial for maritime surveillance systems, but existing methods often
struggle with balancing detection performance and computational complexity. In
this paper, we propose a novel lightweight framework called
\textit{HSI-ShipDetectionNet} that is based on high-order spatial interactions
and is suitable for deployment on resource-limited platforms, such as
satellites and unmanned aerial vehicles. HSI-ShipDetectionNet includes a
prediction branch specifically for tiny ships and a lightweight hybrid
attention block for reduced complexity. Additionally, the use of a high-order
spatial interactions module improves advanced feature understanding and
modeling ability. Our model is evaluated using the public Kaggle marine ship
detection dataset and compared with multiple state-of-the-art models including
small object detection models, lightweight detection models, and ship detection
models. The results show that HSI-ShipDetectionNet outperforms the other models
in terms of recall, and mean average precision (mAP) while being lightweight
and suitable for deployment on resource-limited platforms
RefSelect: a reference sequence selection algorithm for planted (l, d) motif search
Background
The planted (l, d) motif search (PMS) is an important yet challenging problem in computational biology. Pattern-driven PMS algorithms usually use k out of t input sequences as reference sequences to generate candidate motifs, and they can find all the (l, d) motifs in the input sequences. However, most of them simply take the first k sequences in the input as reference sequences without elaborate selection processes, and thus they may exhibit sharp fluctuations in running time, especially for large alphabets.
Results
In this paper, we build the reference sequence selection problem and propose a method named RefSelect to quickly solve it by evaluating the number of candidate motifs for the reference sequences. RefSelect can bring a practical time improvement of the state-of-the-art pattern-driven PMS algorithms. Experimental results show that RefSelect (1) makes the tested algorithms solve the PMS problem steadily in an efficient way, (2) particularly, makes them achieve a speedup of up to about 100Ă— on the protein data, and (3) is also suitable for large data sets which contain hundreds or more sequences.
Conclusions
The proposed algorithm RefSelect can be used to solve the problem that many pattern-driven PMS algorithms present execution time instability. RefSelect requires a small amount of storage space and is capable of selecting reference sequences efficiently and effectively. Also, the parallel version of RefSelect is provided for handling large data sets
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