Search Results for author: Jaap Kamps

Found 15 papers, 6 papers with code

Entity Linking in the ParlaMint Corpus

1 code implementation ParlaCLARIN (LREC) 2022 Ruben van Heusden, Maarten Marx, Jaap Kamps

In this paper, we investigate the task of linking entities from ParlaMint in different languages to a knowledge base, and evaluating the performance of three entity linking methods.

Entity Linking

The Role of Complex NLP in Transformers for Text Ranking?

no code implementations6 Jul 2022 David Rau, Jaap Kamps

Even though term-based methods such as BM25 provide strong baselines in ranking, under certain conditions they are dominated by large pre-trained masked language models (MLMs) such as BERT.

Position Re-Ranking

How Different are Pre-trained Transformers for Text Ranking?

1 code implementation5 Apr 2022 David Rau, Jaap Kamps

Our results contribute to our understanding of (black-box) neural rankers relative to (well-understood) traditional rankers, help understand the particular experimental setting of MS-Marco-based test collections.

Passage Retrieval Retrieval

Who mentions whom? Recognizing political actors in proceedings

no code implementations LREC 2020 Lennart Kerkvliet, Jaap Kamps, Maarten Marx

We show that it is straightforward to train a state of the art named entity tagger (spaCy) to recognize political actors in Dutch parliamentary proceedings with high accuracy.

Learning from Samples of Variable Quality

no code implementations ICLR Workshop LLD 2019 Mostafa Dehghani, Arash Mehrjou, Stephan Gouws, Jaap Kamps, Bernhard Schölkopf

Training labels are expensive to obtain and may be of varying quality, as some may be from trusted expert labelers while others might be from heuristics or other sources of weak supervision such as crowd-sourcing.

HiTR: Hierarchical Topic Model Re-estimation for Measuring Topical Diversity of Documents

1 code implementation12 Oct 2018 Hosein Azarbonyad, Mostafa Dehghani, Tom Kenter, Maarten Marx, Jaap Kamps, Maarten de Rijke

For measuring topical diversity of text documents, our HiTR approach improves over the state-of-the-art measured on PubMed dataset.

Topic Models

Learning to Rank from Samples of Variable Quality

no code implementations21 Jun 2018 Mostafa Dehghani, Jaap Kamps

To this end, we introduce "fidelity-weighted learning" (FWL), a semi-supervised student-teacher approach for training deep neural networks using weakly-labeled data.

Document Ranking Learning-To-Rank

Learning to Learn from Weak Supervision by Full Supervision

1 code implementation30 Nov 2017 Mostafa Dehghani, Aliaksei Severyn, Sascha Rothe, Jaap Kamps

In this paper, we propose a method for training neural networks when we have a large set of data with weak labels and a small amount of data with true labels.

Words are Malleable: Computing Semantic Shifts in Political and Media Discourse

1 code implementation15 Nov 2017 Hosein Azarbonyad, Mostafa Dehghani, Kaspar Beelen, Alexandra Arkut, Maarten Marx, Jaap Kamps

We propose an approach for detecting semantic shifts between different viewpoints--broadly defined as a set of texts that share a specific metadata feature, which can be a time-period, but also a social entity such as a political party.

Fidelity-Weighted Learning

no code implementations ICLR 2018 Mostafa Dehghani, Arash Mehrjou, Stephan Gouws, Jaap Kamps, Bernhard Schölkopf

To this end, we propose "fidelity-weighted learning" (FWL), a semi-supervised student-teacher approach for training deep neural networks using weakly-labeled data.

Ad-Hoc Information Retrieval Information Retrieval +1

Neural Ranking Models with Weak Supervision

1 code implementation28 Apr 2017 Mostafa Dehghani, Hamed Zamani, Aliaksei Severyn, Jaap Kamps, W. Bruce Croft

Our experiments indicate that employing proper objective functions and letting the networks to learn the input representation based on weakly supervised data leads to impressive performance, with over 13% and 35% MAP improvements over the BM25 model on the Robust and the ClueWeb collections.

Ad-Hoc Information Retrieval Information Retrieval +1

On Horizontal and Vertical Separation in Hierarchical Text Classification

no code implementations2 Sep 2016 Mostafa Dehghani, Hosein Azarbonyad, Jaap Kamps, Maarten Marx

Extracting separable models of hierarchical entities requires us to take their relative position into account and to consider the different types of dependencies in the hierarchy.

General Classification Position +2

A Hybrid Approach to Domain-Specific Entity Linking

no code implementations6 Sep 2015 Alex Olieman, Jaap Kamps, Maarten Marx, Arjan Nusselder

The current state-of-the-art Entity Linking (EL) systems are geared towards corpora that are as heterogeneous as the Web, and therefore perform sub-optimally on domain-specific corpora.

Entity Linking

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