wehub-resource-sync
168 lines
6.9 KiB
C#
168 lines
6.9 KiB
C#
// Copyright (c) Microsoft. All rights reserved.
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using System.ClientModel;
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using Azure.AI.OpenAI;
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using Microsoft.Extensions.AI;
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using Microsoft.ML.Tokenizers;
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using Microsoft.SemanticKernel.Text;
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namespace Memory;
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public class TextChunkingAndEmbedding(ITestOutputHelper output) : BaseTest(output)
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{
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private const string EmbeddingModelName = "text-embedding-ada-002";
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private static readonly Tokenizer s_tokenizer = TiktokenTokenizer.CreateForModel(EmbeddingModelName);
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[Fact]
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public async Task RunAsync()
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{
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Console.WriteLine("======== Text Embedding ========");
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await RunExampleAsync();
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}
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private async Task RunExampleAsync()
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{
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var embeddingGenerator = new AzureOpenAIClient(new Uri(TestConfiguration.AzureOpenAIEmbeddings.Endpoint), new ApiKeyCredential(TestConfiguration.AzureOpenAIEmbeddings.ApiKey))
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.GetEmbeddingClient(TestConfiguration.AzureOpenAIEmbeddings.DeploymentName)
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.AsIEmbeddingGenerator();
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// To demonstrate batching we'll create abnormally small partitions.
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var lines = TextChunker.SplitPlainTextLines(ChatTranscript, maxTokensPerLine: 10);
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var paragraphs = TextChunker.SplitPlainTextParagraphs(lines, maxTokensPerParagraph: 25);
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Console.WriteLine($"Split transcript into {paragraphs.Count} paragraphs");
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// Azure OpenAI currently supports input arrays up to 16 for text-embedding-ada-002 (Version 2).
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// Both require the max input token limit per API request to remain under 8191 for this model.
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var chunks = paragraphs
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.ChunkByAggregate(
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seed: 0,
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aggregator: (tokenCount, paragraph) => tokenCount + s_tokenizer.CountTokens(paragraph),
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predicate: (tokenCount, index) => tokenCount < 8191 && index < 16)
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.ToList();
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Console.WriteLine($"Consolidated paragraphs into {chunks.Count}");
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// Generate embeddings for each chunk.
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for (var i = 0; i < chunks.Count; i++)
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{
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var chunk = chunks[i];
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var embeddings = await embeddingGenerator.GenerateAsync(chunk);
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Console.WriteLine($"Generated {embeddings.Count} embeddings from chunk {i + 1}");
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}
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}
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#region Transcript
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private const string ChatTranscript =
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@"
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John: Hello, how are you?
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Jane: I'm fine, thanks. How are you?
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John: I'm doing well, writing some example code.
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Jane: That's great! I'm writing some example code too.
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John: What are you writing?
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Jane: I'm writing a chatbot.
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John: That's cool. I'm writing a chatbot too.
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Jane: What language are you writing it in?
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John: I'm writing it in C#.
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Jane: I'm writing it in Python.
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John: That's cool. I need to learn Python.
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Jane: I need to learn C#.
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John: Can I try out your chatbot?
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Jane: Sure, here's the link.
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John: Thanks!
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Jane: You're welcome.
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Jane: Look at this poem my chatbot wrote:
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Jane: Roses are red
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Jane: Violets are blue
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Jane: I'm writing a chatbot
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Jane: What about you?
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John: That's cool. Let me see if mine will write a poem, too.
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John: Here's a poem my chatbot wrote:
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John: The singularity of the universe is a mystery.
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John: The universe is a mystery.
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John: The universe is a mystery.
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John: The universe is a mystery.
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John: Looks like I need to improve mine, oh well.
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Jane: You might want to try using a different model.
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Jane: I'm using the GPT-3 model.
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John: I'm using the GPT-2 model. That makes sense.
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John: Here is a new poem after updating the model.
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John: The universe is a mystery.
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John: The universe is a mystery.
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John: The universe is a mystery.
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John: Yikes, it's really stuck isn't it. Would you help me debug my code?
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Jane: Sure, what's the problem?
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John: I'm not sure. I think it's a bug in the code.
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Jane: I'll take a look.
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Jane: I think I found the problem.
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Jane: It looks like you're not passing the right parameters to the model.
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John: Thanks for the help!
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Jane: I'm now writing a bot to summarize conversations. I want to make sure it works when the conversation is long.
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John: So you need to keep talking with me to generate a long conversation?
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Jane: Yes, that's right.
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John: Ok, I'll keep talking. What should we talk about?
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Jane: I don't know, what do you want to talk about?
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John: I don't know, it's nice how CoPilot is doing most of the talking for us. But it definitely gets stuck sometimes.
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Jane: I agree, it's nice that CoPilot is doing most of the talking for us.
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Jane: But it definitely gets stuck sometimes.
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John: Do you know how long it needs to be?
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Jane: I think the max length is 1024 tokens. Which is approximately 1024*4= 4096 characters.
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John: That's a lot of characters.
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Jane: Yes, it is.
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John: I'm not sure how much longer I can keep talking.
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Jane: I think we're almost there. Let me check.
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Jane: I have some bad news, we're only half way there.
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John: Oh no, I'm not sure I can keep going. I'm getting tired.
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Jane: I'm getting tired too.
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John: Maybe there is a large piece of text we can use to generate a long conversation.
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Jane: That's a good idea. Let me see if I can find one. Maybe Lorem Ipsum?
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John: Yeah, that's a good idea.
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Jane: I found a Lorem Ipsum generator.
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Jane: Here's a 4096 character Lorem Ipsum text:
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Jane: Lorem ipsum dolor sit amet, con
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Jane: Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed euismod, nunc sit amet aliquam
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Jane: Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed euismod, nunc sit amet aliquam
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Jane: Darn, it's just repeating stuff now.
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John: I think we're done.
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Jane: We're not though! We need like 1500 more characters.
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John: Oh Cananda, our home and native land.
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Jane: True patriot love in all thy sons command.
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John: With glowing hearts we see thee rise.
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Jane: The True North strong and free.
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John: From far and wide, O Canada, we stand on guard for thee.
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Jane: God keep our land glorious and free.
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John: O Canada, we stand on guard for thee.
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Jane: O Canada, we stand on guard for thee.
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Jane: That was fun, thank you. Let me check now.
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Jane: I think we need about 600 more characters.
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John: Oh say can you see?
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Jane: By the dawn's early light.
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John: What so proudly we hailed.
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Jane: At the twilight's last gleaming.
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John: Whose broad stripes and bright stars.
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Jane: Through the perilous fight.
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John: O'er the ramparts we watched.
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Jane: Were so gallantly streaming.
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John: And the rockets' red glare.
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Jane: The bombs bursting in air.
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John: Gave proof through the night.
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Jane: That our flag was still there.
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John: Oh say does that star-spangled banner yet wave.
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Jane: O'er the land of the free.
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John: And the home of the brave.
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Jane: Are you a Seattle Kraken Fan?
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John: Yes, I am. I love going to the games.
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Jane: I'm a Seattle Kraken Fan too. Who is your favorite player?
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John: I like watching all the players, but I think my favorite is Matty Beniers.
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Jane: Yeah, he's a great player. I like watching him too. I also like watching Jaden Schwartz.
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John: Adam Larsson is another good one. The big cat!
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Jane: WE MADE IT! It's long enough. Thank you!
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John: You're welcome. I'm glad we could help. Goodbye!
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Jane: Goodbye!
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";
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#endregion
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}
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