608B71FC-006A-4934-A643-7D9BA9340450Blog

The Future of AI: Elevate Your Skills with Real-Time Model Training Through Data Streaming

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12 February 2024

In the rapidly evolving landscape of artificial intelligence, the integration of real-time data processing with cloud-based model training represents a significant leap forward, particularly in the domain of audio recognition. This article delves into a sophisticated approach that combines the power of TensorFlow, a leading deep learning framework, with the scalability of Scramjet Cloud Platform. The code below shows how to create a seamless pipeline for training an audio recognition model with the use of data streaming provided by Scramjet Sequence.

The Essence of the Code

The described Python code snippet serves as a blueprint for training a convolutional neural network (CNN) model to recognize specific commands in audio streams. The libraries used are TensorFlow and Keras for model creation and training, alongside AWS S3 SDK for model checkpoint cloud storage. The Sequence processes the streamed audio data, trains the model in real-time, and manages model checkpoints in the cloud. This implementation is not just a technical achievement but also a practical solution for applications requiring immediate audio data analysis and response, such as voice-activated assistants and real-time surveillance systems.


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import asyncio
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from scramjet import streams
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async def run(context, input, args):
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audio_file = await input.reduce(lambda a, b: a+b)
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fix_length = 16000 # Set a maximum length for the audio samples
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processed_audio = []
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for audio_sample in many_audio:
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# Pad or truncate audio sample to match the maximum length
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if fix_length > len(audio_sample):
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padded_sample = np.pad(audio_sample, (0, fix_length - len(audio_sample)))
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processed_audio.append(padded_sample)
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if fix_length < len(audio_sample):
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processed_audio.append(audio_sample[:fix_length])
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audio_lst = []
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for i in processed_audio:
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audio = process_chunk(i)
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audio_lst.append(audio)
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dataset_path = audio_lst
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dataset = tf.data.Dataset.from_generator(
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get_record,
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args=[dataset_path],
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# Spectogram expected dimensions are (124, 129, 1)
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output_signature=(
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tf.TensorSpec(shape=(124, 129, 1), dtype=tf.float32),
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tf.TensorSpec(shape=(), dtype=tf.int32)))
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# Buffer the dataset
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dataset = dataset.cache()
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dataset = dataset.shuffle(buffer_size=10)
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dataset = dataset.batch(8)
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dataset = dataset.prefetch(tf.data.AUTOTUNE)
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train = dataset.take(10)
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test = dataset.repeat()

The complete source code for this project can be found on Scramjet's Deep-learning GitHub repository.

Practical Applications and Implications

The capability to train models directly from streaming data using Scramjet Cloud Platform in real-time opens up numerous applications across various industries. In smart home devices, for example, this approach can enhance voice command recognition, allowing devices to adapt to new commands or variations in speech patterns without manual updates. Similarly, in security, real-time audio analysis can detect potential threats or anomalies in surveillance feeds, triggering alerts or actions without human intervention.
Furthermore, the cloud-based nature of the system ensures scalability and accessibility, allowing developers and companies to deploy and train models without significant upfront investment in hardware. Scramjet Transform Hub being open-source and the growing availability of open AI models democratize access to innovative technologies fostering creation of new applications.

Step-by-Step Breakdown

Model Creation: The core of the system is a CNN model designed to understand audio commands. The model was train on TensorFlow Speech Commands dataset. This model is constructed using TensorFlow and Keras, featuring layers tailored for audio processing, including convolutional layers for feature extraction and dense layers for classification.

Audio Processing: Incoming audio data is first converted into spectrograms, a visual representation of the spectrum of frequencies in the audio signal as they vary with time. This conversion facilitates the extraction of meaningful features from raw audio, making it suitable for feeding into the CNN model.

Real-time Data Handling: Asyncio and Scramjet framework are employed to manage real-time data streams effectively, ensuring that the model can be trained on-the-fly as new audio data arrives.

Cloud Integration: AWS S3 is utilized for storing and retrieving model checkpoints. This allows for the model to be saved and later restored, enabling continuous learning and the ability to resume training from the last saved state, which is crucial for long-term, iterative model improvement.

Model Training and Evaluation: The training process involves feeding processed audio data into the model, adjusting the model's weights through backpropagation based on the loss and accuracy during prediction. The model's performance is continuously monitored, and adjustments are made as needed.

Checkpoint Management: Model checkpoints are systematically saved to AWS S3, ensuring that the training progress is not lost and can be resumed or analyzed later. This feature is particularly important for training models on large datasets or in environments where training may be interrupted.

Final thoughts

The convergence of real-time data processing using Scramjet Sequence running on Scramjet Cloud Platform represents a significant step in making AI more dynamic, adaptable, and scalable. By leveraging the Scramjet Transform Hub (STH) for model training and the Cloud Platform for checkpoint management, developers can create solutions that not only learn from vast, continuously updated datasets but also do so in an efficient, cost-effective manner. As AI, IoT and data streaming technologies continues to evolve, we can expect to see even more sophisticated AI models capable of understanding and interacting with the world in real time, further blurring the lines between digital and physical realms.

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Project co-financed by the European Union from the European Regional Development Fund under the Knowledge Education Development Program. The project is carried out as a part of the competition of the National for Research and Development: Szybka Ścieżka.