Sajad Ebrahimi Profile
Sajad Ebrahimi

@sadjadeb

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109
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52

MASc student at University of Guelph | NLP Enthusiast, Interested in Information Retrieval

Toronto, ON
Joined September 2021
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@sadjadeb
Sajad Ebrahimi
2 years
So excited to share that (my first paper ever😎) our paper "Estimating Query Performance Through Rich Contextualized Query Representations" has been accepted to @ecir2024 w/ @NegarEmpr , Maryam Khodabakhsh and @ebrahim_bagheri. #ECIR2024
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@sadjadeb
Sajad Ebrahimi
16 days
I thought writing the thesis was the hard part…
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@sadjadeb
Sajad Ebrahimi
26 days
Had an amazing time at @COLM_conf 🍁! Great talks, inspiring research, and wonderful conversations with the NLP community.
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@sadjadeb
Sajad Ebrahimi
2 months
This paper is an extension of our ECIR 2024 work: “Estimating Query Performance Through Rich Contextualized Query Representations” ✨ If you missed it, you can read it here 👉
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link.springer.com
The state-of-the-art query performance prediction methods rely on the fine-tuning of contextual language models to estimate retrieval effectiveness on a per-query basis. Our work in this paper builds...
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@sadjadeb
Sajad Ebrahimi
2 months
QSD-QPP isn’t limited to one setting! It works for both: 🔹Pre-retrieval (QSD-QPP_Pre): lightweight, interpolates from nearby queries. 🔹Post-retrieval (QSD-QPP_Post): enriches predictions by nearby queries and their performance.
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@sadjadeb
Sajad Ebrahimi
2 months
Excited to share that our paper has been accepted at ACM TIST 🎉 We introduce QSD-QPP, a framework that predicts query effectiveness by leveraging distances in a neural query space. ⚙️Code is available here: https://t.co/3eDOmruUmQ 📖Paper: https://t.co/wlTsiQ82mo #TIST #QPP
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dl.acm.org
The varying performance of information retrieval (IR) methods, including state-of-the-art transformer-based neural retrievers, across diverse queries poses a significant challenge for achieving...
@amin_bigdelii
Amin Bigdeli
2 months
Thrilled to announce that our paper “Query Performance Prediction Using Neural Query Space Proximity (QSD-QPP)” has been accepted in ACM Transactions on Intelligent Systems and Technology (TIST)! 📄 Paper: https://t.co/ub03s63sMa 💻 Code: https://t.co/I8jphQvUTZ 🧵👇
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@cikm2025
ACM CIKM 2025
3 months
Proactive Conversational Information Seeking with Large Language Models (ProActLLM) 🔗 https://t.co/7Olz1b00j6
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@sadjadeb
Sajad Ebrahimi
3 months
9/ Huge thanks to my brilliant co-authors: Soroush Sadeghian, Ali Ghorbanpour, @NegarEmpr , @sara_slmt , Muhan Li, Hai Son Le, Mahdi Bashari, and @ebrahim_bagheri for making this possible 🙌 Looking forward to seeing you in Seoul! 🇰🇷 #RottenReviews #Reviewerly #CIKM2025
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@sadjadeb
Sajad Ebrahimi
3 months
8/ Why it matters: ✔️ Helps venues detect low-effort reviews ✔️ Enables fairer & more transparent review evaluation ✔️ Opens the door for evidence-based peer review reform We are releasing all data, code, and models to encourage further research: 🔗
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github.com
The codes and results of "RottenReviews: Benchmarking Review Quality with Human and LLM-Based Judgments" accepted at CIKM2025. - Reviewerly-Inc/RottenReviews
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@sadjadeb
Sajad Ebrahimi
3 months
7/ Key finding #3: Fine-tuning LLaMA-3 on human-annotated data improves performance, although it still falls short compared to lightweight models. Even GPT-4o could not outperform a straightforward regression model trained on handcrafted features.
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@sadjadeb
Sajad Ebrahimi
3 months
6/ Key finding #2: LLMs in both zero-shot and fine-tuned settings show limited alignment with human judgments for most review quality dimensions.
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@sadjadeb
Sajad Ebrahimi
3 months
5/ Key finding #1: Simple and interpretable features like review length, semantic alignment, and readability correlate surprisingly well with human ratings.
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@sadjadeb
Sajad Ebrahimi
3 months
4/ We measure review quality from three perspectives: 1️⃣ Quantifiable metrics such as length, citations, politeness, and topical alignment 2️⃣ Human expert annotations 3️⃣ LLM-based structured assessments The key question: Which of these aligns best with human judgment?
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@sadjadeb
Sajad Ebrahimi
3 months
3/📊 RottenReviews dataset includes: 1⃣ 55k+ reviews from NeurIPS, ICLR, F1000Research, SWJ 2⃣ 9k+ linked reviewer scholarly profiles 3⃣ Thirteen human-annotated review quality dimensions All openly available: 🔗
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github.com
The codes and results of "RottenReviews: Benchmarking Review Quality with Human and LLM-Based Judgments" accepted at CIKM2025. - Reviewerly-Inc/RottenReviews
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@sadjadeb
Sajad Ebrahimi
3 months
2/ Peer review is the backbone of science. But how can we tell if a review is high quality? 🤔 There is no standard definition. Evaluations are often subjective. Public datasets with quality labels are scarce. That is why we built RottenReviews 🍅.
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@sadjadeb
Sajad Ebrahimi
3 months
1/ 🚀 Excited to share that our paper "RottenReviews: Benchmarking Review Quality with Human and LLM-Based Judgments" has been accepted at #CIKM2025 Applied Research Track! 🎉 We explore what makes a peer review good and why LLMs still have a long way to go in evaluating them.🧵
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@sadjadeb
Sajad Ebrahimi
3 months
Two acceptances in two days. What a week it’s been 😌 Details coming up…
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@cikm2025
ACM CIKM 2025
3 months
🎉 We now present the list of #CIKM2025 accepted Workshops! ✨ 14 incredible workshops will take place on November 14 in Seoul! Check them out at https://t.co/fP3UtbJqaa Stay tuned! More info to come!
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@sadjadeb
Sajad Ebrahimi
3 months
Organized by: @ShubhamC526 , @wangxieric , @imsure318 , @sadjadeb , @zhaochun_ren , @debforit , Gareth Jones, Emine Yilmaz, @HamedZamani 📩 Questions? Feel free to reach out! #ProActLLM #ConversationalAI
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@sadjadeb
Sajad Ebrahimi
3 months
Bring us your: 🤖 Novel proactive AI behaviors & algorithms 🧠 User modeling & context understanding 🔧 Technical foundations for LLM-powered systems 📊 Evaluation metrics & methodologies 🌍 Real-world applications & demos ⚖️ Responsible AI approaches
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@sadjadeb
Sajad Ebrahimi
3 months
🧠💭 Tired of AI that just waits for you to ask? What if your assistant could read your mind, anticipate your next move and offer what you need? ProActLLM is calling for researchers who want to transform conversational AI from reactive question-answerers into proactive partners.
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