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O. Frieder

9 papers hereh-index 5013.6k citations586 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • middle author7
  • last author1

Across the 8 of 9 papers where every author was matched, so the position is known.

fields
  • cs.IR4
  • cs.CL3
  • cs.LG2

identity via Semantic Scholar / OpenAlex

activity
20242026
most citedDagstuhl Perspectives Workshop 24352 -- Conversational Agents: A Framework for Evaluation (CAFE): Manifesto

27 citations · 27 across the 5 of their papers we have counts for

collaborators
Showing cs.IRShow all

4 papers · 1 filter

cs.IR2026

A Picture of Agentic Search

Francesca Pezzuti, Ophir Frieder, Fabrizio Silvestri +2

With automated systems increasingly issuing search queries alongside humans, Information Retrieval (IR) faces a major shift. Yet IR remains human-centred, with systems, evaluation…

cs.IR2026

DRAMA: Domain Retrieval using Adaptive Module Allocation

Pranav Kasela, Marco Braga, Ophir Frieder +3

Neural models are increasingly used in Web-scale Information Retrieval (IR). However, relying on these models introduces substantial computational and energy requirements, leading…

cs.IR2025

GRIT: Graph-based Recall Improvement for Task-oriented E-commerce Queries

Hrishikesh Kulkarni, Surya Kallumadi, Sean MacAvaney +2

Many e-commerce search pipelines have four stages, namely: retrieval, filtering, ranking, and personalized-reranking. The retrieval stage must be efficient and yield high recall be…

cs.IR2024

LexBoost: Improving Lexical Document Retrieval with Nearest Neighbors

Hrishikesh Kulkarni, Nazli Goharian, Ophir Frieder +1

Sparse retrieval methods like BM25 are based on lexical overlap, focusing on the surface form of the terms that appear in the query and the document. The use of inverted indices in…

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