Search Results for author: Ankur Sinha

Found 11 papers, 1 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

A Globally Convergent Gradient-based Bilevel Hyperparameter Optimization Method

no code implementations25 Aug 2022 Ankur Sinha, Satender Gunwal, Shivam Kumar

Although techniques such as Bayesian optimization perform an intelligent search on a given domain of hyperparameters, it does not guarantee an optimal solution.

Bayesian Optimization Bilevel Optimization +1

BioSimulators: a central registry of simulation engines and services for recommending specific tools

no code implementations13 Mar 2022 Bilal Shaikh, Lucian P. Smith, Dan Vasilescu, Gnaneswara Marupilla, Michael Wilson, Eran Agmon, Henry Agnew, Steven S. Andrews, Azraf Anwar, Moritz E. Beber, Frank T. Bergmann, David Brooks, Lutz Brusch, Laurence Calzone, Kiri Choi, Joshua Cooper, John Detloff, Brian Drawert, Michel Dumontier, G. Bard Ermentrout, James R. Faeder, Andrew P. Freiburger, Fabian Fröhlich, Akira Funahashi, Alan Garny, John H. Gennari, Padraig Gleeson, Anne Goelzer, Zachary Haiman, Joseph L. Hellerstein, Stefan Hoops, Jon C. Ison, Diego Jahn, Henry V. Jakubowski, Ryann Jordan, Matúš Kalaš, Matthias König, Wolfram Liebermeister, Synchon Mandal, Robert McDougal, J. Kyle Medley, Pedro Mendes, Robert Müller, Chris J. Myers, Aurelien Naldi, Tung V. N. Nguyen, David P. Nickerson, Brett G. Olivier, Drashti Patoliya, Loïc Paulevé, Linda R. Petzold, Ankita Priya, Anand K. Rampadarath, Johann M. Rohwer, Ali S. Saglam, Dilawar Singh, Ankur Sinha, Jacky Snoep, Hugh Sorby, Ryan Spangler, Jörn Starruß, Payton J. Thomas, David van Niekerk, Daniel Weindl, Fengkai Zhang, Anna Zhukova, Arthur P. Goldberg, Michael L. Blinov, Herbert M. Sauro, Ion I. Moraru, Jonathan R. Karr

To help investigators find and use simulation tools, we developed BioSimulators (https://biosimulators. org), a central registry of the capabilities of simulation tools and consistent Python, command-line, and containerized interfaces to each version of each tool.

Impact of News on the Commodity Market: Dataset and Results

no code implementations9 Sep 2020 Ankur Sinha, Tanmay Khandait

Over the last few years, machine learning based methods have been applied to extract information from news flow in the financial domain.

BIG-bench Machine Learning

A Gradient-based Bilevel Optimization Approach for Tuning Hyperparameters in Machine Learning

no code implementations21 Jul 2020 Ankur Sinha, Tanmay Khandait, Raja Mohanty

The idea is based on the approximation of the lower level optimal value function mapping, which is an important mapping in bilevel optimization and helps in reducing the bilevel problem to a single level constrained optimization task.

Bayesian Optimization BIG-bench Machine Learning +2

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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