Search Results - "da Silva, Altigran S."

Effective Lightweight Learning-to-Rank Method Using Unified Term Impacts by Silva, Sheila Da N., De Moura, Edleno S., Calado, Pavel P., Da Silva, Altigran S.

“…In this study, we propose and evaluate a novel learning-to-rank (L2R) approach that produces results on par with those of the state-of-the-art L2R methods…”
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OpinionLink: Leveraging user opinions for product catalog enrichment by de Melo, Tiago, da Silva, Altigran S., de Moura, Edleno S., Calado, Pável

“…•The paper introduces a novel problem of enriching product catalogs with user opinions.•Proposes an effective approach for solving this problem using…”
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A distantly supervised approach for recognizing product mentions in user-generated content by Vieira, Henry S., Silva, Altigran S. da, Calado, Pável, de Moura, Edleno S.

“…As online purchasing becomes more popular, users trust more information published on social media than on advertisement content. Opinion mining is often…”
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A genetic programming framework to schedule webpage updates by Santos, Aécio S. R., de Carvalho, Cristiano R., Almeida, Jussara M., de Moura, Edleno S., da Silva, Altigran S., Ziviani, Nivio

“…The quality of a Web search engine is influenced by several factors, including coverage and the freshness of the content gathered by the web crawler. Focusing…”
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Learning to expand queries using entities by Brandão, Wladmir C., Santos, Rodrygo L. T., Ziviani, Nivio, de Moura, Edleno S., da Silva, Altigran S.

“…A substantial fraction of web search queries contain references to entities, such as persons, organizations, and locations. Recently, methods that exploit…”
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An evolutionary approach for combining different sources of evidence in search engines by Silva, Thomaz Philippe C., de Moura, Edleno Silva, Cavalcanti, João Marcos B., da Silva, Altigran S., de Carvalho, Moisés Gomes, Gonçalves, Marcos André

“…Modern Web search engines use different strategies to improve the overall quality of their document rankings. Usually the strategy adopted involves the…”
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A Genre-Aware Approach to Focused Crawling by de Assis, Guilherme T., Laender, Alberto H. F., Gonçalves, Marcos André, da Silva, Altigran S.

“…Focused crawlers have as their main goal to crawl Web pages that are relevant to a specific topic or user interest, playing an important role for a great…”
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EurOpi: Multilingual Aspect-Based Sentiment Analysis enabled by a Knowledge Base by Vargas, Danny Suarez, Pessutto, Lucas R. C., Moreira, Viviane P., de Melo, Tiago, Da Silva, Altigran S.

“…Opinionated texts are widely available as the use of e-commerce platforms has become more popular around the world. Sentiment Analysis is the field of study…”
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LABRADOR: Efficiently publishing relational databases on the web by using keyword-based query interfaces by Mesquita, Filipe, da Silva, Altigran S., de Moura, Edleno S., Calado, Pável, Laender, Alberto H.F.

“…A vast amount of valuable information, produced and consumed by people and institutions, is currently stored in relational databases. For many purposes, there…”
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A Bayesian network approach to searching Web databases through keyword-based queries by Calado, Pável, da Silva, Altigran S., Laender, Alberto H.F., Ribeiro-Neto, Berthier A., Vieira, Rodrigo C.

“…On-line information services have become widespread in the Web nowadays. However, Web users are non-specialized and have a great variety of interests…”
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A Genetic Programming Approach to Record Deduplication by de Carvalho, M. G., Laender, A. H. F., Goncalves, M. A., da Silva, A. S.

“…Several systems that rely on consistent data to offer high-quality services, such as digital libraries and e-commerce brokers, may be affected by the existence…”
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The Debye environment for Web data management by Laender, A.H.F., da Silva, A.S., Golgher, P.B., Ribeiro-Neto, B., Evangelista Filha, I.M.R., Magalhaes, K.V.

“…The paper discusses the Debye (Data Extraction By Example) environment which lets users extract and manage semistructured data available from Web sources,…”
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On the relational representation of complex specialization structures by da Silva, Altigran S., Laender, Alberto H.F., Casanova, Marco A.

“…The mapping of entity-relationship schemas (ER schemas) that contain complex specialization structures into the relational model requires the use of specific…”
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LCA-based algorithms for efficiently processing multiple keyword queries over XML streams by Barros, Evandrino G., Laender, Alberto H.F., Moro, Mirella M., da Silva, Altigran S.

“…In a stream environment, differently from traditional databases, data arrive continuously, unindexed and potentially unbounded, whereas queries must be…”
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An evolutionary approach to complex schema matching by de Carvalho, Moisés Gomes, Laender, Alberto H.F., Gonçalves, Marcos André, da Silva, Altigran S.

“…The schema matching problem can be defined as the task of finding semantic relationships between schema elements existing in different data repositories…”
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Using structural information to improve search in Web collections by de Moura, Edleno S., Fernandes, David, Ribeiro-Neto, Berthier, da Silva, Altigran S., Gonçalves, Marcos André

“…In this work, we investigate the problem of using the block structure of Web pages to improve ranking results. Starting with basic intuitions provided by the…”
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Lightweight methods for large-scale product categorization by Cortez, Eli, Rojas Herrera, Mauro, da Silva, Altigran S., de Moura, Edleno S., Neubert, Marden

“…In this article, we present a study about classification methods for large‐scale categorization of product offers on e‐shopping web sites. We present a study…”
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LePrEF: Learn to precompute evidence fusion for efficient query evaluation by da Costa Carvalho, André L., Rossi, Cristian, de Moura, Edleno S., da Silva, Altigran S., Fernandes, David

“…State‐of‐the‐art search engine ranking methods combine several distinct sources of relevance evidence to produce a high‐quality ranking of results for each…”
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A flexible approach for extracting metadata from bibliographic citations by Cortez, Eli, da Silva, Altigran S., Gonçalves, Marcos André, Mesquita, Filipe, de Moura, Edleno S.

“…In this article we present FLUX‐CiM, a novel method for extracting components (e.g., author names, article titles, venues, page numbers) from bibliographic…”
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DEByE – Data Extraction By Example by Laender, Alberto H.F., Ribeiro-Neto, Berthier, da Silva, Altigran S.

“…In this paper we present DEByE ( Data Extraction By Example), an approach to extracting data from Web sources, based on a small set of examples specified by…”
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