Search Results for author: Philipp Schaer

Found 24 papers, 13 papers with code

Context-Driven Interactive Query Simulations Based on Generative Large Language Models

1 code implementation15 Dec 2023 Björn Engelmann, Timo Breuer, Jana Isabelle Friese, Philipp Schaer, Norbert Fuhr

The proposed query generation methods build upon recent Large Language Model (LLM) approaches and consider the user's context throughout the simulation of a search session.

Information Retrieval Language Modelling +2

$Q_{bias}$ -- A Dataset on Media Bias in Search Queries and Query Suggestions

no code implementations29 Nov 2023 Fabian Haak, Philipp Schaer

We use $Q_{bias}$ to evaluate different approaches to fine-tuning transformer-based language models with the goal of producing models capable of biasing text with left and right political stance.

Overview of LiLAS 2020 -- Living Labs for Academic Search

no code implementations31 Oct 2023 Philipp Schaer, Johann Schaible, Leyla Jael Garcia Castro

Academic Search is a timeless challenge that the field of Information Retrieval has been dealing with for many years.

Information Retrieval Retrieval

Simulating Users in Interactive Web Table Retrieval

1 code implementation18 Oct 2023 Björn Engelmann, Timo Breuer, Philipp Schaer

Our multi-perspective evaluation scheme reveals new insights about query strategies, the impact of modalities, and different user types in simulated WTR search sessions.

Table Retrieval

Living Lab Evaluation for Life and Social Sciences Search Platforms -- LiLAS at CLEF 2021

no code implementations5 Oct 2023 Philipp Schaer, Johann Schaible, Leyla Jael Castro

Meta-evaluation studies of system performances in controlled offline evaluation campaigns, like TREC and CLEF, show a need for innovation in evaluating IR-systems.

Retrieval

Evaluating Temporal Persistence Using Replicability Measures

no code implementations21 Aug 2023 Jüri Keller, Timo Breuer, Philipp Schaer

As a result, we quantify the persistence of the submitted runs and see great potential in this evaluation method.

Information Retrieval Retrieval

Text Simplification of Scientific Texts for Non-Expert Readers

no code implementations7 Jul 2023 Björn Engelmann, Fabian Haak, Christin Katharina Kreutz, Narjes Nikzad Khasmakhi, Philipp Schaer

Text simplification is the task of rephrasing a text to better cater to the abilities of a specific target reader group.

Text Simplification

ConvGenVisMo: Evaluation of Conversational Generative Vision Models

1 code implementation28 May 2023 Narjes Nikzad Khasmakhi, Meysam Asgari-Chenaghlu, Nabiha Asghar, Philipp Schaer, Dietlind Zühlke

Conversational generative vision models (CGVMs) like Visual ChatGPT (Wu et al., 2023) have recently emerged from the synthesis of computer vision and natural language processing techniques.

Automated Statement Extraction from Press Briefings

1 code implementation23 Feb 2023 Jüri Keller, Meik Bittkowski, Philipp Schaer

The results indicate that claim detection can be used to identify statements in press briefings.

Online Information Retrieval Evaluation using the STELLA Framework

no code implementations24 Oct 2022 Timo Breuer, Narges Tavakolpoursaleh, Johann Schaible, Daniel Hienert, Philipp Schaer, Leyla Jael Castro

Involving users in early phases of software development has become a common strategy as it enables developers to consider user needs from the beginning.

Information Retrieval Recommendation Systems +1

ir_metadata: An Extensible Metadata Schema for IR Experiments

1 code implementation18 Jul 2022 Timo Breuer, Jüri Keller, Philipp Schaer

Additionally, we curate a dataset with run files derived from experiments with different instantiations of PRIMAD components and annotate these with the corresponding metadata.

Information Retrieval Retrieval

Evaluating Elements of Web-based Data Enrichment for Pseudo-Relevance Feedback Retrieval

1 code implementation10 Mar 2022 Timo Breuer, Melanie Pest, Philipp Schaer

In this work, we analyze a pseudo-relevance retrieval method based on the results of web search engines.

Retrieval

Overview of LiLAS 2021 -- Living Labs for Academic Search

1 code implementation10 Mar 2022 Philipp Schaer, Timo Breuer, Leyla Jael Castro, Benjamin Wolff, Johann Schaible, Narges Tavakolpoursaleh

The evaluation of results and a meta-analysis of the different tasks and submission types complement this overview.

Retrieval

Validating Simulations of User Query Variants

1 code implementation19 Jan 2022 Timo Breuer, Norbert Fuhr, Philipp Schaer

System-oriented IR evaluations are limited to rather abstract understandings of real user behavior.

Retrieval

repro_eval: A Python Interface to Reproducibility Measures of System-oriented IR Experiments

1 code implementation19 Jan 2022 Timo Breuer, Nicola Ferro, Maria Maistro, Philipp Schaer

In this work we introduce repro_eval - a tool for reactive reproducibility studies of system-oriented information retrieval (IR) experiments.

Information Retrieval Retrieval

How to Measure the Reproducibility of System-oriented IR Experiments

1 code implementation26 Oct 2020 Timo Breuer, Nicola Ferro, Norbert Fuhr, Maria Maistro, Tetsuya Sakai, Philipp Schaer, Ian Soboroff

Replicability and reproducibility of experimental results are primary concerns in all the areas of science and IR is not an exception.

An Investigation of Biases in Web Search Engine Query Suggestions

no code implementations2 Dec 2019 Malte Bonart, Anastasiia Samokhina, Gernot Heisenberg, Philipp Schaer

This study introduces a framework to systematically examine and automatically analyze the varieties in different query suggestions for person names offered by major search engines.

Intertemporal Connections Between Query Suggestions and Search Engine Results for Politics Related Queries

no code implementations20 Dec 2018 Malte Bonart, Philipp Schaer

For each search term and for both the search results and query auto-completions we study the stability of the rankings over time.

Prioritizing and Scheduling Conferences for Metadata Harvesting in dblp

2 code implementations17 Apr 2018 Mandy Neumann, Christopher Michels, Philipp Schaer, Ralf Schenkel

Maintaining literature databases and online bibliographies is a core responsibility of metadata aggregators such as digital libraries.

Digital Libraries

A System for Probabilistic Linking of Thesauri and Classification Systems

no code implementations21 Mar 2016 Lisa Posch, Philipp Schaer, Arnim Bleier, Markus Strohmaier

This paper presents a system which creates and visualizes probabilistic semantic links between concepts in a thesaurus and classes in a classification system.

Classification General Classification

The Polylingual Labeled Topic Model

no code implementations24 Jul 2015 Lisa Posch, Arnim Bleier, Philipp Schaer, Markus Strohmaier

In this paper, we present the Polylingual Labeled Topic Model, a model which combines the characteristics of the existing Polylingual Topic Model and Labeled LDA.

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