Category

Mitigation
Technique(s)

Title

Prompt
Engineering

Retrieval
Augmented
Generation

(Before

Generation)

Detection

Task(s)

Metric(s)

Dataset(s)

Limitation(s)

Evaluated
LLM(s)

GPT-3.5

Manual,
OTT-QA

Information
seeking dialog
and
open-domain
Wiki question
Answering

KF1, BLEU-4,
ROUGE-1,
METEOR,
BLEURT,
BERTScore,
chrF,
BARTScore

QA

Accuracy

FreshQA
(Own dataset)

T5, Palm,
Palmchilla,
Flan-T5,
Flan-Palm,
GPT-3.5,
Codex, GPT-4

Retrieval
Augmented
Generation

(During

Generation)

Article
generation
task, Multi-
hop Questions,
False Premise
Questions

Accuracy and
Success

GPT-3.5,
Vicuna

Manual

Details not
provided

×

QA

Recall and F1
score

ChitChatQA
and HotPotQA

Details not
provided

PaLM,
InstructGPT,
GPT-3 and
LLaMA2

Short-form
QA, Biog-
raphy gen-
eration, and
Reasoning,

Exact
match(EM),F1-
score,
recall @ 5,
FACTSCORE

InstructGPT,
Llama 2 7B
Chat, Llama
2 13B Chat,
Llama 1 65B
and GPT-3.5

HotPotQA,
TriviaQA,
ALCE-
Qampari
QA,bio
benchmark
AComprehensiveSurveyofHallucinationMitigationTechniquesinLarge LanguageModels