216 research outputs found
FAIR: A Causal Framework for Accurately Inferring Judgments Reversals
Artificial intelligence researchers have made significant advances in legal
intelligence in recent years. However, the existing studies have not focused on
the important value embedded in judgments reversals, which limits the
improvement of the efficiency of legal intelligence. In this paper, we propose
a causal Framework for Accurately Inferring case Reversals (FAIR), which models
the problem of judgments reversals based on real Chinese judgments. We mine the
causes of judgments reversals by causal inference methods and inject the
obtained causal relationships into the neural network as a priori knowledge.
And then, our framework is validated on a challenging dataset as a legal
judgment prediction task. The experimental results show that our framework can
tap the most critical factors in judgments reversal, and the obtained causal
relationships can effectively improve the neural network's performance. In
addition, we discuss the generalization ability of large language models for
legal intelligence tasks using ChatGPT as an example. Our experiment has found
that the generalization ability of large language models still has defects, and
mining causal relationships can effectively improve the accuracy and explain
ability of model predictions
Morphing and Sampling Network for Dense Point Cloud Completion
3D point cloud completion, the task of inferring the complete geometric shape
from a partial point cloud, has been attracting attention in the community. For
acquiring high-fidelity dense point clouds and avoiding uneven distribution,
blurred details, or structural loss of existing methods' results, we propose a
novel approach to complete the partial point cloud in two stages. Specifically,
in the first stage, the approach predicts a complete but coarse-grained point
cloud with a collection of parametric surface elements. Then, in the second
stage, it merges the coarse-grained prediction with the input point cloud by a
novel sampling algorithm. Our method utilizes a joint loss function to guide
the distribution of the points. Extensive experiments verify the effectiveness
of our method and demonstrate that it outperforms the existing methods in both
the Earth Mover's Distance (EMD) and the Chamfer Distance (CD).Comment: 8pages, 7 figures, AAAI202
Regression modeling based on improved genetic algorithm
Regresijski model je dobro uhodana metoda u analizi podataka s primjenom u raznim podruÄjima. Izbor nezavisnih varijabli i matematiÄki transformiranih u regresijski model, Äesto predstavlja izazovan problem. Nedavno je nekoliko znanstvenika primijenilo evolucijski proraÄun za rjeÅ”enje tog problema, ali rezultat nije uÄinkovit onoliko koliko smo željeli. Ukrižena (crossover) operacija u GA redizajnirana je primjenom Latin hypercube uzorkovanja, a zatim, kombinacijom dvaju uobiÄajeno koriÅ”tenih statistiÄkih kriterija (AIC, BIC), dajemo poboljÅ”ani genetiÄki algoritam za rjeÅ”avanje problema izbora statistiÄkog modela. Predloženim se algoritmom može prevladati jaka ovisnost o putanji i osloniti na iskustvo steÄeno primjenom klasiÄnih pristupa. Usporedba rezultata simulacije u rjeÅ”avanju problema odabira statistiÄkog modela s ovim poboljÅ”anim GA, tradicionalnog genetiÄkog algoritma i klasiÄnog algoritma za odabir modela pokazuje da je novi GA superiorniji u rjeÅ”avanju kvalitete, brzine konvergencije i drugih razliÄitih pokazatelja.Regression model is a well-established method in data analysis with applications in various fields. The selection of independent variables and mathematically transformed in a regression model is often a challenging problem. Recently, some scholars have used evolutionary computation to solve this problem, but the result is not effective as we desired. The crossover operation in GA is redesigned by using Latin hypercube sampling, then combining two commonly used statistical criteria (AIC, BIC) we are presenting an improved genetic algorithm based for solving statistical model selection problem. The proposed algorithm can overcome strong path-dependence and rely on experience of classical approaches. Comparison of simulation results in solving statistical model selection problem with this improved GA, traditional genetic algorithm and classical algorithm for model selection show that the new GA has superiority in solution of quality, convergence rate and other various indices
Zero123++: a Single Image to Consistent Multi-view Diffusion Base Model
We report Zero123++, an image-conditioned diffusion model for generating
3D-consistent multi-view images from a single input view. To take full
advantage of pretrained 2D generative priors, we develop various conditioning
and training schemes to minimize the effort of finetuning from off-the-shelf
image diffusion models such as Stable Diffusion. Zero123++ excels in producing
high-quality, consistent multi-view images from a single image, overcoming
common issues like texture degradation and geometric misalignment. Furthermore,
we showcase the feasibility of training a ControlNet on Zero123++ for enhanced
control over the generation process. The code is available at
https://github.com/SUDO-AI-3D/zero123plus
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