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Register a new userLightningDOT: Pre-training Visual-Semantic Embeddings for Real-Time Image-Text Retrieval
LightNingDot: ما قبل التدريب تضمينات الفلالات المرئية لاسترجاع نص الصورة في الوقت الحقيقي
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دفعت التدريب المسبق متعدد الوسائط إلى التقدم الرائع في أبحاث الرؤية واللغة. هذه النماذج المدربة مسبقا واسعة النطاق، على الرغم من نجاحها، تعاني مصححة من سرعة الاستدلال البطيء بسبب التكلفة الحسابية الهائلة بشكل أساسي من الاهتمام عبر الوسائط في بنية محول. عند تطبيقها على تطبيقات الحياة الحقيقية، فإن طلب الكمون والحساب الحساب يردع بشدة الاستخدام العملي للنماذج المدربة مسبقا. في هذه الورقة، ندرس استرجاع نص الصورة (ITR)، سيناريو أكثر نضجا من تطبيق V + L، الذي تمت دراسته على نطاق واسع حتى قبل ظهور النماذج المدربة مسبقا مؤخرا. نقترح نهج بسيط ولكنه فعال للغاية، الذي يسرع وقت الاستدلال في ITR بآلاف المرات، دون التضحية بالدقة. يزيل LightNingdot الاهتمام المتعلق بالعشرات المستهلكة للوقت من خلال استخراج فهارس ميزة ذات مخزيرة مؤقتا في وضع عدم الاتصال، وتوظيف مطابقة منتجات DOT الفورية عبر الإنترنت، والتي تسرع بشكل كبير عملية الاسترجاع بشكل كبير. في الواقع، يحقق LightNingDot أداء فائقا عبر معايير ITR الرئيسية مثل DataSets Flickr30k و Coco، مما يتفوق على النماذج الموجودة المدربة مسبقا تستهلك 1000 مرة من الساعات الحاسوبية باستخدام نفس الميزات.
Multimodal pre-training has propelled great advancement in vision-and-language research. These large-scale pre-trained models, although successful, fatefully suffer from slow inference speed due to enormous computational cost mainly from cross-modal attention in Transformer architecture. When applied to real-life applications, such latency and computation demand severely deter the practical use of pre-trained models. In this paper, we study Image-text retrieval (ITR), the most mature scenario of V+L application, which has been widely studied even prior to the emergence of recent pre-trained models. We propose a simple yet highly effective approach, LightningDOT that accelerates the inference time of ITR by thousands of times, without sacrificing accuracy. LightningDOT removes the time-consuming cross-modal attention by extracting pre-cached feature indexes offline, and employing instant dot-product matching online, which significantly speeds up retrieval process. In fact, our LightningDOT achieves superior performance across mainstream ITR benchmarks such as Flickr30k and COCO datasets, outperforming existing pre-trained models that consume 1000 times magnitude of computational hours using the same features.
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