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Darren
Darren

Posted on • Originally published at mrmemory.dev

Apply decay function to fade old embeddings

Antipollution Patterns for AI Agent Memory

The Context Pollution Problem

Context pollution is a real issue that can tank the performance of your AI agents. I've seen it happen: you throw more memory at the problem, but instead of solving it, you just make it worse. The model starts spewing out garbage responses because it's stuck in a sea of irrelevant context.

What Causes Context Pollution?

It all comes down to how your model handles context. If it can't tell what's relevant and what's not, you're doomed. It's like trying to have a conversation with someone who just repeats everything they've ever heard without any filter.

Effective Forgetting

So, how do you prevent this? Well, one approach is to implement effective forgetting mechanisms that let your model discard unnecessary info. We use decay functions for this in MrMemory:

from mrmemory import MrMemory
client = MrMemory(api_key="your-key")
results = client.remember("user prefers dark mode", tags=["preferences"])
# Apply decay function to fade old embeddings
client.decay(results, 0.5)
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By applying a decay function, we can make old and unreferenced embeddings fade from the agent's memory, preventing context pollution.

Weighting Recent Memories

Another approach is to weight recent memories higher during retrieval scoring. This way, your model prioritizes more relevant and up-to-date info when making decisions:

from mrmemory import MrMemory
client = MrMemory(api_key="your-key")
results = client.remember("user prefers dark mode", tags=["preferences"])
# Weight recent memories higher during retrieval
weighted_results = client.weight_recent(results, 0.8)
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Comparison with Alternatives

We've compared our solution to others like Mem0 and Zep. While they offer similar functionality, MrMemory's got some key advantages:

Solution Compression Self-Edit Tools
MrMemory 40-60% token savings Yes
Mem0 None No
Zep (self-host only) None No

Conclusion

Preventing context pollution is crucial for building effective AI agents. By using decay functions or weighting recent memories, you can keep your model's memory clean and efficient. Try MrMemory today and see the difference.


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Tags: ai, memory, antipollution, context pollution, mrmemory

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