LLM Task Interference: an Initial Study on the Impact of Task-Switch in Conversational History

Akash Gupta,Ivaxi Sheth,Vyas Raina,Mark Gales,Mario Fritz

EMNLP 2024（2024）

University of Cambridge | CISPA Helmholtz Center for Information Security

Cited 5|Views38

Abstract

With the recent emergence of powerful instruction-tuned large language models (LLMs), various helpful conversational Artificial Intelligence (AI) systems have been deployed across many applications. When prompted by users, these AI systems successfully perform a wide range of tasks as part of a conversation. To provide some sort of memory and context, such approaches typically condition their output on the entire conversational history. Although this sensitivity to the conversational history can often lead to improved performance on subsequent tasks, we find that performance can in fact also be negatively impacted, if there is a task-switch. To the best of our knowledge, our work makes the first attempt to formalize the study of such vulnerabilities and interference of tasks in conversational LLMs caused by task-switches in the conversational history. Our experiments across 5 datasets with 15 task switches using popular LLMs reveal that many of the task-switches can lead to significant performance degradation.

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Key words

Spoken Dialogue Systems,Multimodal Interaction,Reinforcement Learning,Dialog Management,Semantic Processing

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