InstructABSA: Instruction Learning for Aspect Based Sentiment Analysis

We introduce InstructABSA, an instruction learning paradigm for Aspect-Based Sentiment Analysis (ABSA) subtasks. Our method introduces positive, negative, and neutral examples to each training sample, and instruction tune the model (Tk-Instruct) for ABSA subtasks, yielding significant performance improvements. Experimental results on the Sem Eval 2014, 15, and 16 datasets demonstrate that InstructABSA outperforms the previous state-of-the-art (SOTA) approaches on Term Extraction (ATE), Sentiment Classification(ATSC) and Sentiment Pair Extraction (ASPE) subtasks. In particular, InstructABSA outperforms the previous state-of-the-art (SOTA) on the Rest14 ATE subtask by 5.69% points, the Rest15 ATSC subtask by 9.59% points, and the Lapt14 AOPE subtask by 3.37% points, surpassing 7x larger models. We also get competitive results on AOOE, AOPE, and AOSTE subtasks indicating strong generalization ability to all subtasks. Exploring sample efficiency reveals that just 50% train data is required to get competitive results with other instruction tuning approaches. Lastly, we assess the quality of instructions and observe that InstructABSA's performance experiences a decline of ~10% when adding misleading examples.

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Datasets


Results from the Paper


Task Dataset Model Metric Name Metric Value Global Rank Benchmark
Aspect-Based Sentiment Analysis (ABSA) SemEval-2014 Task-4 InstructABSA Restaurant (Acc) 89.76 # 3
Laptop (Acc) 88.37 # 1
Mean Acc (Restaurant + Laptop) 89.065 # 1
Aspect Extraction SemEval-2014 Task-4 InstructABSA Laptop (F1) 92.30 # 1
Mean F1 (Laptop + Restaurant) 92.53 # 1
Restaurant (F1) 92.76 # 1
Aspect-Based Sentiment Analysis (ABSA) SemEval 2014 Task 4 Laptop InstructABSA F1 79.34 # 1
Aspect-Based Sentiment Analysis (ABSA) SemEval 2014 Task 4 Sub Task 1 InstructABSA Laptop (F1) 92.30 # 1
Restaurant (F1) 92.76 # 1
Aspect Extraction SemEval 2014 Task 4 Sub Task 1 InstructABSA Laptop (F1) 92.30 # 1
Sentiment Analysis SemEval 2014 Task 4 Subtask 1+2 InstructABSA F1 79.34 # 1
Aspect-Based Sentiment Analysis (ABSA) SemEval 2014 Task 4 Subtask 1+2 InstructABSA F1 79.34 # 2

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