Many, many years ago, I requested for the Cypher UNION clause in Cypher and Andres Taylor graciously added it.This was followed by the request for Post-Union Processing by Aseem Kishore, and it began to collect a whopping 99 comments over the course of time.It is exciting to see support for a subset of subqueries in openCypher i.e. uncorrelated subqueries in the soon to be released Neo4j 4, bringing post-union processing finally to Cypher.Given its history, a short article is in order.Union in 3.xIn pre-4x versions of Neo4j, UNION served to combine the results of 2 or more queries into one...
So you have followed the Deep Dive into Neo4j’s Full Text Search tutorial, learned even how to create custom analyzers and finally watched the Full Text Search tips and tricks talk at the Nodes19 online conference?Still, searching for boat does not yield results containing yacht or ship, and you’re wondering how to make your search engine a bit more relevant for your users?Don’t go any further, you’ll learn how to do it, now!SynonymsA synonym is a word or phrase that means exactly or nearly the same as another word or phrase.Why synonyms ?It’s all about recall! In other words, to...
GRANDstack tips and tricksUsing GRANDstack can rapidly accelerate the development of applications. The neo4j-graphql-js library provides the ability to translate GraphQL queries from the frontend to Cypher queries. This is achieved by defining the GraphQL schema and annotating it with a few extra directives. If you want to get familiar with the GRANDstack you can visit their documentation.This post will present some more advanced tips and tricks for using the neo4j-graphql-js library that we found useful for real world applications. It will focus on overcoming some of its limitations or adding missing features. It will show you how to unset...
For the Global GraphHack 2019, we extended JMeter to support the Bolt protocol and do load testing on Cypher queries.
BANGALORE, October 10, 2019 – Softlink Information Systems and GraphAware are pleased to announce that they have entered into a global strategic partnership, combining Softlink’s industry leading database consulting services with GraphAware, the leading Neo4j ISV and consulting practice, and the creators of Hume, a cutting-edge Graph-Powered Insights Engine.With knowledge graphs playing an increasingly critical role for enterprises to move to the next level of information analytics, companies recognize that they need to accelerate the development of knowledge graphs to ensure they remain on the competitive vanguard. The Softlink-GraphAware partnership brings together deep skills in business and technology strategy, driven...
We have already blogged about fulltext search available in Neo4j 3.5. The list of available analyzers covers many languages and fits various use cases. However once you expose the search to real users they will start pointing out edge cases and complain about the search not being google-like.Speakers of languages using accents in their written form quite often leave out the accents. This has various reasons, the most common ones are historical, when different character encodings caused problems and users find it hard to change their habits using a different default keyboard layout (e.g. en_US); switching the layout just for...
Do you use D3 for data visualisation and either you are considering, or already using it also for graph visualisation? Keep in mind that D3 uses SVG for rendering. While it is the easiest to work with API for drawing 2D graphics on the Web, its downside is that the browser keeps the entire DOM tree of vector elements in memory, even for elements that are effectively invisible. You might hit a performance drop with complex graphics, specifically for graph visualisation when you try drawing graphs larger than ~1000 nodes, or even less with complex SVG effects.At this time you...
The Cypher query planner is quite advanced and mature, and you can mostly rely on it to pick the best plan for your query. However, there are rare cases, or bugs, that might want you looking for ways to influence that plan. This article demonstrates practical usage of an index hint. Note that all queries were tested against Neo4j Enterprise 3.5.8The graph modelThis is the relevant portion of the graph model that is sufficient to demonstrate the issue.Simple enough- we have many tweets, and tweets have keywords.Our graph has two indexes, one on the value of the Keyword, and the...
Neo4j Desktop, part of the Neo4j Graph Platform, is a client application that installs on your desktop OS. It lets you get started quickly by downloading and installing the enterprise edition, and supported plugins. You can group related graphs and applications under a Project. You can also build single-page web applications that run within Neo4j Desktop and have access to these services provided by Neo4j Desktop. There are a number of apps available at https://install.graphapp.io/In this blog post, we will build a very simple graph app using vanilla javascript.All code in this blog post is available at https://github.com/aldrinm/simple-graph-app and https://github.com/aldrinm/simple-graph-app-npmHello,...
BOSTON, July 23, 2019 /PRNewswire/ – GraphAware, a leading Neo4j ISV and consulting practice, today announced the official launch of its Italian Research and Development entity Graph Aware S.r.l., headquartered in Lecce, Italy.This strategic investment by GraphAware represents a significant expansion as an ISV, with a fast growing development team of thought-leaders in GraphDBs with Neo4j, Natural Language Processing (NLP), Machine Learning (ML) and Artificial Intelligence (AI).Led by Chief Scientist Alessandro Negro and CTO Christophe Willemsen,the Lecce R&D center is the main lab and development center for GraphAware’s flagship software platform Hume- with a dedicated local and remote development team...