Results 121 to 130 of about 337,613 (156)

Practical Implementation of Federated Learning for Detecting Backdoor Attacks in a Next-word Prediction Model. [PDF]

Sci Rep
Wong JKW, Chung KK, Lo YW, Lai CY, Mung SWY.   +4 more
europepmc   +1 more source

Combining IC₅₀ or K_i Values from Different Sources Is a Source of Significant Noise. [PDF]

J Chem Inf Model
Landrum GA, Riniker S.
europepmc   +1 more source

Metformin treatment for patients with hand osteoarthritis: protocol for the multicentre, randomised, placebo-controlled METRO trial. [PDF]

BMJ Open
Madsen KS, Henriksen M, Døssing A, Poulsen AS, Oscar R, Kragstrup T, Ellegaard K, Knop FK, Boesen M, Hunter DJ, Christensen R, Bliddal H.   +11 more
europepmc   +1 more source

Efficacy of Real-Time Feedback Exercise Therapy in Patients Following Total Hip Arthroplasty: Protocol for a Pilot Cluster-Randomized Controlled Trial.

JMIR Res Protoc
Widhalm K, Maul L, Durstberger S, Putz P, Leder-Berg S, Kainz H, Augat P.   +6 more
europepmc   +1 more source

Null values in SQL

ACM SIGMOD Record, 2008
In various writings over the past 20 years, such as [3], Date has pointed out that SQL produces incorrect answers to some queries where a null value is included in a table. In a recent article in the ACM SIGMOD Record, [8], Rubinson states that "Date misinterprets the meaning of his example query" and "SQL returns the correct answer to the query posed".
John Grant
semanticscholar   +4 more sources

Handling Null Values in SQL Queries on Relational Databases

2024 10th International Conference on Engineering, Applied Sciences, and Technology (ICEAST)
The lack of information within relational databases expressed as NULL values presents a problem in ensuring the quality of data and the information retrieved by SQL queries. This is so because there are different interpretations of NULL values. Actually,
Manuel Me’Ndez, Mercedes G. Merayo, Suphamit Chittayasothorn   +2 more
semanticscholar   +3 more sources

NULL-Werte und dreiwertige Logik in SQL

Informatik zwischen Wissenschaft und Gesellschaft, 1992
In relationalen Datenbanken ist es ublich, das gewisse Felder „NULL“ sein konnen (vgl. [Date86]). Wir sagen hier bewust nicht „den Wert NULL haben“. NULL kann u.a. bedeuten, das der aktuelle Wert eines Attributs unbekannt ist. Andere Arten von Nullen, wie z.B. „nicht anwendbar“ oder „gibt es nicht“ werden hier nicht behandelt, (vgl.
Günter Matthiessen
semanticscholar   +4 more sources

Nulls, three-valued logic, and ambiguity in SQL

ACM SIGMOD Record, 2007
Date's popular critique of SQL's three-valued logic [4, 3] purports to demonstrate that SQL queries can produce erroneous results when nulls are present in the database. I argue that this critique is flawed in that Date misinterprets the meaning of his example query.
Claude Rubinson
openaire   +3 more sources