Search Results for author: Pekka Malo

Found 8 papers, 2 papers with code

SEntFiN 1.0: Entity-Aware Sentiment Analysis for Financial News

no code implementations20 May 2023 Ankur Sinha, Satishwar Kedas, Rishu Kumar, Pekka Malo

Limited studies have tried to address the sentiment extraction task in a setting where multiple entities are present in a news headline.

Sentence Sentiment Analysis

Predicting Visit Cost of Obstructive Sleep Apnea using Electronic Healthcare Records with Transformer

1 code implementation28 Jan 2023 Zhaoyang Chen, Lina Siltala-Li, Mikko Lassila, Pekka Malo, Eeva Vilkkumaa, Tarja Saaresranta, Arho Veli Virkki

Relative to a single-Transformer solution using only a third of the high-quality patient data, the solution with two models improved the prediction performance's $R^{2}$ from 88. 8% to 97. 5%.

A Review on Bilevel Optimization: From Classical to Evolutionary Approaches and Applications

no code implementations17 May 2017 Ankur Sinha, Pekka Malo, Kalyanmoy Deb

Only limited work exists on bilevel problems using evolutionary computation techniques; however, recently there has been an increasing interest due to the proliferation of practical applications and the potential of evolutionary algorithms in tackling these problems.

Bilevel Optimization Evolutionary Algorithms

Optimal Management of Naturally Regenerating Uneven-aged Forests

no code implementations17 Aug 2016 Ankur Sinha, Janne Rämö, Pekka Malo, Markku Kallio, Olli Tahvonen

A shift from even-aged forest management to uneven-aged management practices leads to a problem rather different from the existing straightforward practice that follows a rotation cycle of artificial regeneration, thinning of inferior trees and a clearcut.

Management

Gold-standard for Topic-specific Sentiment Analysis of Economic Texts

no code implementations LREC 2014 Pyry Takala, Pekka Malo, Ankur Sinha, Oskar Ahlgren

The annotations of 297 documents and over 9000 sentences can be used for research purposes when developing methods for detecting topic-wise sentiment in financial text.

Sentence Sentiment Analysis

Good Debt or Bad Debt: Detecting Semantic Orientations in Economic Texts

2 code implementations19 Jul 2013 Pekka Malo, Ankur Sinha, Pyry Takala, Pekka Korhonen, Jyrki Wallenius

The objective of this article is to investigate how semantic orientations can be better detected in financial and economic news by accommodating the overall phrase-structure information and domain-specific use of language.

Sentence Sentiment Analysis

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