document WCC #152
document WCC #152
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WalkthroughThis update introduces new documentation files for several graph algorithms, including BFS, PageRank, Weakly Connected Components (WCC), and advanced shortest-path procedures. Each algorithm receives a dedicated markdown file with detailed explanations, usage examples, syntax, and performance notes. An index page for algorithms is added for navigation. The BFS documentation is shifted from its previous location to a new one, with expanded content and examples. Minor metadata cleanup occurs in the single-source shortest path documentation. No code or API signatures are changed; all modifications are strictly related to documentation. Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant Docs Index
participant BFS Doc
participant PageRank Doc
participant WCC Doc
participant SP Doc
User->>Docs Index: Navigate to Algorithms index
Docs Index->>User: Display list of algorithms
User->>BFS Doc: Select BFS
BFS Doc->>User: Show BFS documentation
User->>PageRank Doc: Select PageRank
PageRank Doc->>User: Show PageRank documentation
User->>WCC Doc: Select WCC
WCC Doc->>User: Show WCC documentation
User->>SP Doc: Select Shortest Paths
SP Doc->>User: Show SP documentation
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Actionable comments posted: 0
🧹 Nitpick comments (8)
algorithms/index.md (2)
1-4: Frontmatter completeness
The YAML frontmatter correctly specifies the page title and description. If your documentation framework supports additional metadata (e.g.,sidebar_label,keywords), consider including them to enhance navigation and SEO.
6-19: Enhance the index with brief summaries
Currently, each algorithm is listed as a link without context. Adding a one-line description under each entry will help users quickly understand the purpose before navigating to the full page.algorithms/wcc.md (6)
1-3: Add YAML frontmatter for metadata
Thewcc.mdfile lacks frontmatter, which may be required by your static site generator to populate sidebars or page metadata. Consider adding:--- title: "Weakly Connected Components (WCC)" description: "Detects sets of nodes connected ignoring edge direction" ---
5-7: Refine overview phrasing for clarity
The sentence “Each node in a weakly connected component can reach every other node in that component if edge directions are ignored.” is a bit verbose. Consider:Each node in a component is reachable from every other when edge directions are ignored.
8-12: Expand use case descriptions
The bullet list outlines key applications. Adding a brief explanation for each (e.g., why WCC suits community detection) will make this section more actionable for users.
20-25: Include space complexity
You’ve documented the time complexity (O(|V| + |E|)). Adding the space complexity (typically O(|V| + |E|) for adjacency structures or union-find tables) will provide a complete performance profile.
41-47: Illustrate return values with a sample table
Showing a concrete output example (node names and component IDs) can help users validate their results.
48-57: Add expected output for examples
After the sample query, include the corresponding result set (e.g., a mini table) to demonstrate what users should see when running it.
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📒 Files selected for processing (2)
algorithms/index.md(1 hunks)algorithms/wcc.md(1 hunks)
🔇 Additional comments (5)
algorithms/wcc.md (5)
14-18: Algorithm details are clear
The step-by-step description of the merge process is concise and accurate.
26-31: Syntax section is well presented
The Cypher call example clearly shows how to invoke WCC.
32-40: Verify default parameter behavior
Documented defaults (“All labels” and “All relationship types”) should match the actual implementation (e.g., empty list vs. null). Please confirm that these descriptions align with the code to prevent user confusion.
59-85: Social network graph creation example is solid
The multi-community setup and isolated node case are well illustrated.
87-100: Analysis query example is clear
The YIELD and aggregation steps are correct and easy to follow.
algorithms/index.md
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| # Algorithms | ||
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| ## 1. [WCC](/algorithms/wcc) |
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If WCC isn't a ubiquitous term, I'd print the entire name: Weakly Connected Components (WCC)
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Actionable comments posted: 4
🧹 Nitpick comments (5)
algorithms/algo_bfs.md (3)
16-19: Add language identifier to fenced code block
The syntax block is missing a language tag. Please annotate the code fence for syntax highlighting, e.g.:- ``` + ```cypher🧰 Tools
🪛 markdownlint-cli2 (0.17.2)
16-16: Fenced code blocks should have a language specified
null(MD040, fenced-code-language)
49-65: Annotate the graph setup code block with language
The “Setup the Graph” example uses a fenced code block without specifying the language. For clarity, change:- ``` + ```cypher🧰 Tools
🪛 markdownlint-cli2 (0.17.2)
49-49: Fenced code blocks should have a language specified
null(MD040, fenced-code-language)
69-80: Annotate the example query code block with language
The “Find Friends of Friends” example block also needs a language specifier. Please update:- ``` + ```cypher🧰 Tools
🪛 markdownlint-cli2 (0.17.2)
69-69: Fenced code blocks should have a language specified
null(MD040, fenced-code-language)
algorithms/algo_spath.md (1)
8-11: Clarify introductory sentence
“In v2.10 introduced two new path-finding algorithms…” is missing a subject and comma. Consider rephrasing:In v2.10, we introduced two new minimum-weight path-finding algorithms...algorithms/algo_wcc.md (1)
56-62: Include expected output for the first example
The example callingalgo.wccreturns nodes and component IDs but doesn’t show expected results. Adding a sample output table will make the docs more actionable.
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📒 Files selected for processing (7)
algorithms/algo_bfs.md(1 hunks)algorithms/algo_pagerank.md(1 hunks)algorithms/algo_spath.md(1 hunks)algorithms/algo_sspath.md(1 hunks)algorithms/algo_wcc.md(1 hunks)algorithms/index.md(1 hunks)cypher/algorithms.md(0 hunks)
💤 Files with no reviewable changes (1)
- cypher/algorithms.md
✅ Files skipped from review due to trivial changes (2)
- algorithms/algo_sspath.md
- algorithms/algo_pagerank.md
🚧 Files skipped from review as they are similar to previous changes (1)
- algorithms/index.md
🧰 Additional context used
🪛 markdownlint-cli2 (0.17.2)
algorithms/algo_bfs.md
16-16: Fenced code blocks should have a language specified
null
(MD040, fenced-code-language)
49-49: Fenced code blocks should have a language specified
null
(MD040, fenced-code-language)
69-69: Fenced code blocks should have a language specified
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🪛 GitHub Actions: spellcheck
algorithms/algo_wcc.md
[error] 1-1: Spelling errors detected: 'WCC', 'preprocessing', 'subgraphs'
🪛 LanguageTool
algorithms/algo_spath.md
[misspelling] ~18-~18: Use “An” instead of ‘A’ if the following word starts with a vowel sound, e.g. ‘an article’, ‘an hour’.
Context: ...sum you want to minimize (weight). * A optional relationships' property whose ...
(EN_A_VS_AN)
[grammar] ~172-~172: A determiner may be missing.
Context: ...orter paths. ## algo.SPpaths Finding shortest paths (in kilometers) by traversing all...
(THE_SUPERLATIVE)
[uncategorized] ~274-~274: Loose punctuation mark.
Context: ...s the number of paths to report: * 0: retrieve all minimum-weight paths (all ...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~276-~276: Loose punctuation mark.
Context: ...orted paths have the same weight) * 1: retrieve a single minimum-weight path (...
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[uncategorized] ~278-~278: Loose punctuation mark.
Context: ...e minimum-weight path (default) * n>1: retrieve up to n minimum-weight paths...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~320-~320: Loose punctuation mark.
Context: ...lowing optional arguments: * costProp: the relationship's property that repres...
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[uncategorized] ~324-~324: Loose punctuation mark.
Context: ..., costProp defaults to 1. * maxCost: the maximum cost (the bound). If not sp...
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[uncategorized] ~329-~329: Loose punctuation mark.
Context: ...traint. You also yielded: * pathCost: the path's cost or the sum of costProp ...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~329-~329: Possible missing comma found.
Context: ...also yielded: * pathCost: the path's cost or the sum of costProp of all relations...
(AI_HYDRA_LEO_MISSING_COMMA)
[uncategorized] ~360-~360: Loose punctuation mark.
Context: ...ing optional argument: * relDirection: one of incoming, outgoing, or `both...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~364-~364: Possible missing comma found.
Context: ...ppose you want to repeat the query above but also limit the path-length (number of r...
(AI_HYDRA_LEO_MISSING_COMMA)
[uncategorized] ~364-~364: “to” seems less likely than “the”.
Context: ...h-length (number of relationships along to path) to 4: ```cypher MATCH (a:City{na...
(AI_HYDRA_LEO_CP_TO_THE)
[uncategorized] ~387-~387: Loose punctuation mark.
Context: ...llowing optional constraint: * maxLen: maximum path length (number of roads al...
(UNLIKELY_OPENING_PUNCTUATION)
🔇 Additional comments (1)
algorithms/algo_wcc.md (1)
65-71: Spellcheck false positives
The spellcheck pipeline flaggedWCC,preprocessing, andsubgraphs. These are valid technical terms; you can safely ignore or whitelist them.
| MATCH (aline:Person {name: 'Alice'}) | ||
| CALL algo.bfs(me, 2, 'FRIEND') | ||
| YIELD nodes |
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Fix inconsistent variable name in example
The query uses MATCH (aline:Person {name: 'Alice'}) but then calls CALL algo.bfs(me, 2, 'FRIEND'). Either rename the bound variable from aline to me in the MATCH, or call algo.bfs(aline, ...).
| ### Basic BFS Traversal | ||
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| This example demonstrates a basic BFS traversal starting from a person node. | ||
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| ### Social Network Friend Recommendations |
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Provide the missing Basic BFS Traversal example
The “Basic BFS Traversal” section is empty. An example query should be added (e.g., a simple traversal calling the procedure and yielding results).
| | `path` | Path | Discovered path | | ||
| | `pathWeight` | Integer | The path's weight or sum of weightProp of all the relationships along the path | | ||
| | `pathCost` | Integer | | | ||
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🛠️ Refactor suggestion
Add description for pathCost return value
The pathCost column is empty. Suggest:
| `pathCost` | Integer | Sum of `costProp` over relationships in the path |Committable suggestion skipped: line range outside the PR's diff.
| | `sourceNode` | Node | Node from which the path starts. | | ||
| | `targetNode` | Node | Last node on the path. | | ||
| | `relTypes` | Array | List of one or more relationship types to traverse | | ||
| | `maxLen` | Int | | | ||
| | `relDirection `| String | | | ||
| | `weightProp` | String | The relationship's property that represents the weight (for all specified `relTypes`) | | ||
| | `costProp` | String | | | ||
| | `maxCost` | Int | | | ||
| | `pathCount` | Int | | | ||
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🛠️ Refactor suggestion
Complete parameter descriptions in table
Several entries lack descriptions/defaults (maxLen, relDirection, costProp, maxCost, pathCount). For maintainability, please fill in these columns, for example:
| `maxLen` | Int | no limit | Maximum number of relationships along the path |
| `relDirection` | String | 'outgoing' | 'incoming', 'outgoing', or 'both' |
| `costProp` | String | none | Relationship property to bound on cost |
| `maxCost` | Int | no bound | Maximum sum of costProp |
| `pathCount` | Int | 1 | Number of paths to return |📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| | `sourceNode` | Node | Node from which the path starts. | | |
| | `targetNode` | Node | Last node on the path. | | |
| | `relTypes` | Array | List of one or more relationship types to traverse | | |
| | `maxLen` | Int | | | |
| | `relDirection `| String | | | |
| | `weightProp` | String | The relationship's property that represents the weight (for all specified `relTypes`) | | |
| | `costProp` | String | | | |
| | `maxCost` | Int | | | |
| | `pathCount` | Int | | | |
| | `sourceNode` | Node | Node from which the path starts. | | |
| | `targetNode` | Node | Last node on the path. | | |
| | `relTypes` | Array | List of one or more relationship types to traverse | | |
| | `maxLen` | Int | no limit | Maximum number of relationships along the path | | |
| | `relDirection` | String | 'outgoing' | 'incoming', 'outgoing', or 'both' | | |
| | `weightProp` | String | The relationship's property that represents the weight (for all specified `relTypes`) | | |
| | `costProp` | String | none | Relationship property to bound on cost | | |
| | `maxCost` | Int | no bound | Maximum sum of costProp | | |
| | `pathCount` | Int | 1 | Number of paths to return | |
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