一种共同的销售策略涉及让帐户高管(AES)积极联系并与潜在客户联系。但是,并非所有的接触尝试都有积极的效果:有些尝试不会改变客户的决策,而另一些尝试甚至可能会干扰所需的结果。在这项工作中,我们建议使用因果推断来估计与每个潜在客户联系并相应地制定联系政策的效果。我们从在线珠宝市场worthy.com上证明了这种方法。我们研究了有价值的业务流程,以确定相关的决策和结果,并对他们制定的方式进行正式的假设。使用因果工具,我们选择了一个决策点,改善AE接触活动似乎是有希望的。然后,我们制定了一个个性化的政策,建议仅与对其有益的客户联系。最后,我们在3个月内验证了A \ B测试中的结果,从而导致目标人群的项目交付率增加了22%(p值= 0.026)。现在,该政策正在持续使用。
translated by 谷歌翻译
Large language models (LLMs) have been shown to be able to perform new tasks based on a few demonstrations or natural language instructions. While these capabilities have led to widespread adoption, most LLMs are developed by resource-rich organizations and are frequently kept from the public. As a step towards democratizing this powerful technology, we present BLOOM, a 176B-parameter open-access language model designed and built thanks to a collaboration of hundreds of researchers. BLOOM is a decoder-only Transformer language model that was trained on the ROOTS corpus, a dataset comprising hundreds of sources in 46 natural and 13 programming languages (59 in total). We find that BLOOM achieves competitive performance on a wide variety of benchmarks, with stronger results after undergoing multitask prompted finetuning. To facilitate future research and applications using LLMs, we publicly release our models and code under the Responsible AI License.
translated by 谷歌翻译
一个人如何在没有特定任务的固定或任何模型修改的情况下将预训练的视觉模型调整为新颖的下游任务?受到NLP提示的启发,本文研究了视觉提示:在测试时间和新输入图像时,给定的输入输出图像示例示例,目标是自动生成输出图像,与给定的示例一致。我们表明,将这个问题作为简单的图像插入,实际上只是填充了串联的视觉提示图像中的一个孔 - 只要已经对正确的数据训练了介入算法,就非常有效。我们在我们策划的新数据集上训练蒙面的自动编码器-88K未标记的数字来自ARXIV上的学术报纸来源。我们将视觉提示应用于这些预处理的模型,并在各种下游图像到图像任务上展示结果,包括前景分割,单个对象检测,着色,边缘检测等。
translated by 谷歌翻译
该技术报告描述了无回报(PNR)时间定位挑战的EGO4D点的SVIT方法。我们提出了一个学习框架的结构(简称SVIT),该结构证明了仅在训练过程中仅可用的少量图像的结构才能改善视频模型。SVIT依靠两个关键见解。首先,由于图像和视频都包含结构化信息,因此我们用一组\ emph {对象令牌}丰富了一个可以在图像和视频中使用的\ emph {对象令牌}的模型。其次,视频中各个帧的场景表示应与静止图像的场景表示“对齐”。这是通过“框架夹一致性”损失实现的,该损失可确保图像和视频之间结构化信息的流动。SVIT在挑战测试集上获得了强劲的性能,并具有0.656绝对时间定位误差。
translated by 谷歌翻译
最近的动作识别模型通过整合对象,其位置和互动来取得令人印象深刻的结果。但是,为每个框架获得密集的结构化注释是乏味且耗时的,使这些方法的训练昂贵且可扩展性较低。同时,如果可以在感兴趣的域内或之外使用一小部分带注释的图像,我们如何将它们用于下游任务的视频?我们提出了一个学习框架的结构(简称SVIT),该结构证明了仅在训练过程中仅可用的少量图像的结构才能改善视频模型。 SVIT依靠两个关键见解。首先,由于图像和视频都包含结构化信息,因此我们用一组\ emph {对象令牌}丰富了一个可以在图像和视频中使用的\ emph {对象令牌}的模型。其次,视频中各个帧的场景表示应与静止图像的场景表示“对齐”。这是通过\ emph {frame-clip一致性}损失来实现的,该损失可确保图像和视频之间结构化信息的流动。我们探索场景结构的特定实例化,即\ emph {手对象图},由手和对象组成,其位置为节点,以及触点/no-contact的物理关系作为边缘。 SVIT在多个视频理解任务和数据集上显示出强烈的性能改进;它在EGO4D CVPR'22对象状态本地化挑战中赢得了第一名。对于代码和预算模型,请访问\ url {https://eladb3.github.io/svit/}的项目页面
translated by 谷歌翻译
最近,视频变压器在视频理解方面取得了巨大成功,超过了CNN性能;然而,现有的视频变换器模型不会明确地模拟对象,尽管对象对于识别操作至关重要。在这项工作中,我们呈现对象区域视频变换器(Orvit),一个\ emph {对象为中心}方法,它与直接包含对象表示的块扩展视频变压器图层。关键的想法是从早期层开始融合以对象形式的表示,并将它们传播到变压器层中,从而影响整个网络的时空表示。我们的orvit块由两个对象级流组成:外观和动态。在外观流中,“对象区域关注”模块在修补程序上应用自我关注和\ emph {对象区域}。以这种方式,Visual对象区域与统一修补程序令牌交互,并通过上下文化对象信息来丰富它们。我们通过单独的“对象 - 动态模块”进一步模型对象动态,捕获轨迹交互,并显示如何集成两个流。我们在四个任务和五个数据集中评估我们的模型:在某事物中的某些问题和几次射击动作识别,以及在AVA上的某些时空动作检测,以及在某种东西上的标准动作识别 - 某种东西 - 东西,潜水48和EPIC-Kitchen100。我们在考虑的所有任务和数据集中展示了强大的性能改进,展示了将对象表示的模型的值集成到变压器体系结构中。对于代码和预用模型,请访问项目页面\ url {https://roeiherz.github.io/orvit/}
translated by 谷歌翻译
最近对物体检测的自我监督预防方法在很大程度上专注于预先绘制物体探测器的骨干,忽略了检测架构的关键部分。相反,我们介绍了DetReg,这是一种新的自我监督方法,用于预先列出整个对象检测网络,包括对象本地化和嵌入组件。在预先绘制期间,DetReg预测对象本地化以与无监督区域提议生成器匹配本地化,并同时将相应的特征嵌入与自我监控图像编码器的嵌入式对齐。我们使用DETR系列探测器实施DetReg,并显示它在Coco,Pascal VOC和空中客车船基准上的Fineetuned时改善了竞争性基线。在低数据制度中,包括半监督和几秒钟学习设置,DetReg建立了许多最先进的结果,例如,在Coco上,我们看到10次检测和+3.5的AP改进A +6.0 AP改进当培训只有1%的标签时。对于代码和预用模型,请访问https://amirbar.net/detreg的项目页面
translated by 谷歌翻译
With the advent of Neural Style Transfer (NST), stylizing an image has become quite popular. A convenient way for extending stylization techniques to videos is by applying them on a per-frame basis. However, such per-frame application usually lacks temporal-consistency expressed by undesirable flickering artifacts. Most of the existing approaches for enforcing temporal-consistency suffers from one or more of the following drawbacks. They (1) are only suitable for a limited range of stylization techniques, (2) can only be applied in an offline fashion requiring the complete video as input, (3) cannot provide consistency for the task of stylization, or (4) do not provide interactive consistency-control. Note that existing consistent video-filtering approaches aim to completely remove flickering artifacts and thus do not respect any specific consistency-control aspect. For stylization tasks, however, consistency-control is an essential requirement where a certain amount of flickering can add to the artistic look and feel. Moreover, making this control interactive is paramount from a usability perspective. To achieve the above requirements, we propose an approach that can stylize video streams while providing interactive consistency-control. Apart from stylization, our approach also supports various other image processing filters. For achieving interactive performance, we develop a lite optical-flow network that operates at 80 Frames per second (FPS) on desktop systems with sufficient accuracy. We show that the final consistent video-output using our flow network is comparable to that being obtained using state-of-the-art optical-flow network. Further, we employ an adaptive combination of local and global consistent features and enable interactive selection between the two. By objective and subjective evaluation, we show that our method is superior to state-of-the-art approaches.
translated by 谷歌翻译
Machine learning is the dominant approach to artificial intelligence, through which computers learn from data and experience. In the framework of supervised learning, for a computer to learn from data accurately and efficiently, some auxiliary information about the data distribution and target function should be provided to it through the learning model. This notion of auxiliary information relates to the concept of regularization in statistical learning theory. A common feature among real-world datasets is that data domains are multiscale and target functions are well-behaved and smooth. In this paper, we propose a learning model that exploits this multiscale data structure and discuss its statistical and computational benefits. The hierarchical learning model is inspired by the logical and progressive easy-to-hard learning mechanism of human beings and has interpretable levels. The model apportions computational resources according to the complexity of data instances and target functions. This property can have multiple benefits, including higher inference speed and computational savings in training a model for many users or when training is interrupted. We provide a statistical analysis of the learning mechanism using multiscale entropies and show that it can yield significantly stronger guarantees than uniform convergence bounds.
translated by 谷歌翻译
Transformer language models (TLMs) are critical for most NLP tasks, but they are difficult to create for low-resource languages because of how much pretraining data they require. In this work, we investigate two techniques for training monolingual TLMs in a low-resource setting: greatly reducing TLM size, and complementing the masked language modeling objective with two linguistically rich supervised tasks (part-of-speech tagging and dependency parsing). Results from 7 diverse languages indicate that our model, MicroBERT, is able to produce marked improvements in downstream task evaluations relative to a typical monolingual TLM pretraining approach. Specifically, we find that monolingual MicroBERT models achieve gains of up to 18% for parser LAS and 11% for NER F1 compared to a multilingual baseline, mBERT, while having less than 1% of its parameter count. We conclude reducing TLM parameter count and using labeled data for pretraining low-resource TLMs can yield large quality benefits and in some cases produce models that outperform multilingual approaches.
translated by 谷歌翻译