87,114 Hits in 5.4 sec

On the discovery of mathematical concepts

S. L. Epstein
1988 International Journal of Intelligent Systems  
From a knowledge base of such concept definitions, GT is able to conjecture and prove such theorems as "The set of acyclic, connected graphs is precisely the set of trees" and "There is no odd-regular  ...  Each class of graphs is defined in an algebraic notation with a semantic interpretation that is a stylized algorithm to generate the class correctly and completely.  ...  Acknowledgements: The author thanks N.S. Sridharan and Virginia Teller for their assistance and support in this research and its presentation.  ... 
doi:10.1002/int.4550030205 fatcat:2uy7naiytvhillxavopj6y7qee

ViCE: Visual Concept Embedding Discovery and Superpixelization [article]

Robin Karlsson, Tomoki Hayashi, Keisuke Fujii, Alexander Carballo, Kento Ohtani, Kazuya Takeda
2022 arXiv   pre-print
The expressiveness of our dense embeddings is demonstrated by significantly improving the SOTA representation quality benchmarks on COCO (+16.27 mIoU) and Cityscapes (+19.24 mIoU) for both low- and high-resolution  ...  This work presents a method to effectively learn dense semantically rich visual concept embeddings applicable to high-resolution images.  ...  The working hypothesis is that contextual co-occurrence of abstract pixel patterns correspond to the same latent semantic visual concept in vector space analogous to how the discovery of latent semantic  ... 
arXiv:2111.12460v2 fatcat:vmr6f7pizjdvrluyesxqpklio4

Commentary-based video categorization and concept discovery

Janice Kwan-Wai Leung, Chun Hung Li, Ting Keung Ip
2009 Proceeding of the 2nd ACM workshop on Social web search and mining - SWSM '09  
Experiments conducted by using empirical data collected from YouTube shows the effectiveness of our proposed methodologies.  ...  Due to the huge amount of videos, grouping videos with similar contents together can help users to search videos more efficiently.  ...  User interests discovery, and user and URLs clustering were done by using the tags users used to annotate the content of URLs.  ... 
doi:10.1145/1651437.1651446 dblp:conf/cikm/LeungLI09 fatcat:r5k2s2llvzcn3lprha6tylod3q

Automatic Discoveries of Physical and Semantic Concepts via Association Priors of Neuron Groups [article]

Shuai Li, Kui Jia, Xiaogang Wang
2017 arXiv   pre-print
In spite of their successes, the properties of complex patterns associated a learned concept remain elusive.  ...  It associates complex patterns of input samples with neurons in the last layer, which form representations of concepts.  ...  We define a cluster of images that consist of a prototype t and its variations t , ∀t ∈ T as the concept related to that prototype, where T is the set of all variations.  ... 
arXiv:1612.09438v2 fatcat:eogrgrxogfa4nlgyreu422pa7u

Concept Discovery in Using Factorization Method [chapter]

Janice Kwan-Wai Leung, Chun Hung Li
2010 Handbook of Social Network Technologies and Applications  
via the generation of new concept words.  ...  Factorized component entropies are introduced for handling the difficult problem of vocabulary construction for concept discovery in social media.  ...  The tables show that tags, titles or short descriptions are not sufficient for concept discovery of online videos.  ... 
doi:10.1007/978-1-4419-7142-5_13 fatcat:auqqtqn43zhzvg34ze2nblbb7a

Concept Discovery for The Interpretation of Landscape Scenicness

Pim Arendsen, Diego Marcos, Devis Tuia
2020 Machine Learning and Knowledge Extraction  
This allows us to obtain a list of new concept candidates to improve our understanding of the elements that contribute the most to the perception of scenicness.  ...  to a large set of word embeddings, therefore giving access to entire dictionaries of concepts.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/make2040022 fatcat:ixjo55rgszfl3kjecakph5lceq

PACE: Pattern Accurate Computationally Efficient Bootstrapping for Timely Discovery of Cyber-Security Concepts [article]

Nikki McNeil, Robert A. Bridges, Michael D. Iannacone, Bogdan Czejdo, Nicolas Perez, John R. Goodall
2013 arXiv   pre-print
An implementation in the cyber-security domain is discussed as well as challenges to Natural Language Processing imposed by the security domain.  ...  The main contribution of this paper is an enhancement of the traditional bootstrapping method for entity extraction by employing a time-memory trade-off that simultaneously circumvents a costly corpus  ...  BACKGROUND Previous work in the intersection of Natural Language Processing for understanding cyber-security concepts has been undertaken.  ... 
arXiv:1308.4648v3 fatcat:lgpdn5biyjea5oyv55qlje6l5i

The discovery and mechanism of sweet taste enhancers

Xiaodong Li, Guy Servant, Catherine Tachdjian
2011 Biomolecular Concepts  
Following a similar mechanism as the natural umami taste enhancers, the sweet enhancer molecules cooperatively bind with the sweeteners to the Venus flytrap domain of the human sweet taste receptor and  ...  A new strategy focused on allosteric modulation of the sweet taste receptor led to identification of sweet taste 'enhancers' for the first time.  ...  Since the discovery of these proof-of-concept molecules, significantly improved enhancers, which allow approximately 50% sucrose reduction in product prototypes, have been identified for sucrose through  ... 
doi:10.1515/bmc.2011.021 pmid:25962040 fatcat:exetbfy32vfxbkvdv674dbkd6e

Cell-Based Screening to Identify Cytoprotective Compounds [chapter]

Domokos Gerő
2018 Drug Discovery - Concepts to Market  
Considerations about the choice of small molecule compound libraries utilized in cell-based models are discussed as well as the use of clinical drugs for drug repurposing or repositioning.  ...  Finally, the potential pitfalls of data analysis and hit selection are discussed.  ...  Lipinski introduced his "rule of five" concept, the filtering of molecules by solubility and permeability Drug Discovery -Concepts to Market prediction using the following parameters: the molecular weight  ... 
doi:10.5772/intechopen.73172 fatcat:wllipjuurrbrpd7zzpzsd4kewq

A concept analysis approach for guiding users in service discovery

Bipin Upadhyaya, Foutse Khomh, Ying Zou, Alex Lau, Joanna Ng
2012 2012 Fifth IEEE International Conference on Service-Oriented Computing and Applications (SOCA)  
To understand the semantic meanings of a user's query, we identify concepts behind the query and recommend related concepts associated with services.  ...  We conducted a case study and found that the average precision and recall of our approach for service discovery are respectively, 83% and 100%.  ...  ConceptNet can be visualized as a graph of nodes and edges. A node represents a concept in the form of natural language fragments (e.g., 'food', and 'grocery store').  ... 
doi:10.1109/soca.2012.6449462 dblp:conf/soca/UpadhyayaKZLN12 fatcat:gx7sqt57nzhxno5oxlgmp46ztu

The anatomy of prototypes

Youn-Kyung Lim, Erik Stolterman, Josh Tenenberg
2008 ACM Transactions on Computer-Human Interaction  
The role of prototypes is well established in the field of HCI and Design. A lack of knowledge, however, about the fundamental nature of prototypes still exists.  ...  There have also been efforts to provide new ways of thinking about the activity of using prototypes, such as experience prototyping and paper prototyping, but these efforts do not provide a discourse for  ...  Then we introduce the details of our concept, the anatomy of prototypes.  ... 
doi:10.1145/1375761.1375762 fatcat:eepev5eeonedrj3ffsjnbn6t2y

Opioids and Their Receptors: Present and Emerging Concepts in Opioid Drug Discovery

Mariana Spetea, Helmut Schmidhammer
2020 Molecules  
The interest in opioids such as morphine, the prototypical opioid ligand, has been maintained throughout the years [...]  ...  Moreover, the array of multidisciplinary research areas illustrates the rapidly developing research and translational activities in the opioid drug discovery.  ...  Natural product medicines have a long history of use in the treatment and prevention of many human diseases. Zerumbone, a sesquiterpene from the wild ginger plant Zingiber zerumbet (L.)  ... 
doi:10.3390/molecules25235658 pmid:33271753 pmcid:PMC7730540 fatcat:q6ajvkfdzbb43bj3hhoem2dmfi

Beyond Bibliographic Discovery: Bringing Concepts and Findings into the Mix

Athena Hoeppner
2018 Against the Grain  
The user can click a tab to see a list of concepts, or a tab to see the list of documents in which the AI found the concept. The initial nodes start with very broad concepts.  ...  To the side of the concept map, Yewno shows an overview of the selected concept, similar to the Wikipedia summary in google results.  ... 
doi:10.7771/2380-176x.8001 fatcat:ytqjozgbtrg55cm5fznmc3rn3y

Conceptual Knowledge Discovery in Databases using formal concept analysis methods [chapter]

Gerd Stumme, Rudolf Wille, Uta Wille
1998 Lecture Notes in Computer Science  
The system should allow highly flexible processes of knowledge discovery respecting the open and procedural nature of productive human thinking.  ...  One of the leading German mail-order companies is currently implementing a prototype of a TOSCANA system for its customer database, which shall be compared to statistical KDD tools.  ... 
doi:10.1007/bfb0094849 fatcat:j3zljxjqv5ffpifn7dwt63i3ni

Meta-Learning - Concepts and Techniques [chapter]

Ricardo Vilalta, Christophe Giraud-Carrier, Pavel Brazdil
2009 Data Mining and Knowledge Discovery Handbook  
The field of meta-learning has as one of its primary goals the understanding of the interaction between the mechanism of learning and the concrete contexts in which that mechanism is applicable.  ...  The field has seen a continuous growth in the past years with interesting new developments in the construction of practical modelselection assistants, task-adaptive learners, and a solid conceptual framework  ...  First, the nature of the match between the set of meta-features and the meta-knowledge base can have several interpretations.  ... 
doi:10.1007/978-0-387-09823-4_36 fatcat:obz2mb7xwfdgfpzv7vtfh7ouwm
« Previous Showing results 1 — 15 out of 87,114 results